Last Updated on April 22, 2026

BOXT boiler prices start from £1,790, and the company has revolutionised how people buy boilers. You can easily compare BOXT boiler prices, make a purchase, and schedule new boiler installations online. But what does the fixed quote include, and is BOXT cheaper than the alternatives?

If you’re struggling with an old, inefficient, or malfunctioning boiler, replacing it with a new, A-rated boiler can save from £170 to £475 annually on fuel costs, depending on the type, size, and thermal performance of your home. That can be enough to cover the cost of a new smartphone, a family holiday, or several months of a utility bill.

The catch? The process of sourcing, pricing, and booking a new boiler can be frustrating, opaque, and far more expensive than it needs to be. That’s precisely the problem BOXT aims to solve. Since launching in 2017, it has let homeowners compare models, get a fixed price, and book a Gas Safe installation, sometimes for the following morning, entirely online.

Exploring BOXT boiler prices will help you determine what the fixed quote actually covers and how the costs stack up against other boiler installers across every boiler type, allowing you to make an informed decision based on your budget.

Key Takeaways on BOXT Boiler Prices in 2026:

• BOXT boiler prices start from £1,790 fully installed.
• You get a Gas Safe installation, system cleanse, magnetic filter, smart thermostat, and warranty registration, with no hidden costs added on the day.
• A mid-range Worcester Bosch combi boiler for a typical three-bedroom costs between £2,000 and £2,600 on the BOXT platform, significantly below comparable quotes from other installers.
• You can get a next-working-day installation if you order before 3 pm, making BOXT the fastest national option for homeowners dealing with a boiler breakdown.
• Finance is available from 0% APR over 12 or 24 months, with longer terms at 11.9% APR, all provided by Novuna Consumer Finance and regulated by the Financial Conduct Authority.
• BOXT works best for standard like-for-like replacements. Non-standard installations, complex properties, or buyers who require an in-person survey are better served by a local Gas Safe engineer.
• Manufacturer warranties run for up to 10 years, depending on the brand chosen, and annual servicing by a Gas Safe-registered engineer is a must to keep most warranties valid.

What Is BOXT and How Does It Work?

BOXT was founded in 2017, and Worcester Bosch, one of the country’s most trusted boiler manufacturers, has a minority shareholding in the business. Worcester Bosch models feature prominently on the platform, often at a significant discount.

The model is straightforward. By operating entirely online, BOXT eliminates the retail overheads, in-person sales visits, and intermediaries that push traditional installation quotes higher. Those savings are passed directly to the customer.

What started as a gas boiler replacement service has grown considerably. BOXT now covers gas, LPG, heat pumps, solar panels, air conditioning, and EV charging. It’s one of the more complete home energy platforms available in the UK.

How The Process Works

Getting a new boiler through BOXT takes around two minutes and follows five straightforward steps:

1. Complete a short questionnaire covering your property type, current boiler setup, and hot water demand.
2. Browse your recommendations — the platform returns a shortlist of boilers matched to your home’s requirements, from budget to premium.
3. Choose and pay — upfront by card or through one of several finance options at checkout.
4. Receive your boiler — in most cases, delivered on the morning of your installation.
5. Get it installed — by a Gas Safe registered engineer, often the next working day if you order before 3 pm.

No sales calls, home visits, or haggling over a quote that changes on the day.

BOXT Boiler Prices: How Much Does Installation Cost in 2026?

BOXT’s fixed-quote approach means the figure you see at the end of the online questionnaire is the price you pay. There are no additions on installation day, provided your property details are accurate and the job is standard.

Starting BOXT boiler prices currently sit at £1,790 for a gas combi boiler installation. That headline figure covers more than just the boiler unit itself, and understanding what moves the price up from that starting point is essential before requesting a quote. A three-bedroom semi-detached home replacing a like-for-like combi boiler will typically sit in the £2,000 to £2,600 range, depending on the brand and model chosen. Larger properties, premium brands, or homes requiring a system or regular boiler will sit higher.

It’s worth noting that BOXT’s price match promise guarantees to beat any like-for-like boiler installation quote by £50, giving additional confidence that the online price reflects genuine market value rather than an inflated starting point that leaves room for negotiation.

Check out our boiler installation cost calculator to get an estimation for new boiler costs.

Compare BOXT Boiler Prices by Boiler Type

The type of boiler your home requires is the single biggest factor determining your final price. The three main categories serve different property sizes and hot water demands:

Boiler Type	Best Suited To	Starting Installed Price	Typical Mid-Range Price
Combi boiler	Smaller homes, one bathroom	From £1,790	£2,000 to £2,600
System boiler	Larger homes, multiple bathrooms	From £2,100	£2,500 to £3,200
Regular (conventional) boiler	Older properties, low water pressure	From £2,300	£2,800 to £3,500

Combi boilers account for around 80% of boiler installations in the UK and the majority of BOXT orders. They heat water on demand, require no separate cylinder or cold water tank, and suit most properties with one bathroom. System boilers work alongside a hot water cylinder and suit homes with two or more bathrooms, where simultaneous demand is common.

Regular boilers, sometimes called conventional or heat-only boilers, are common in older properties and work with both a cylinder and a cold water tank in the loft.

Compare BOXT Boiler Prices by Brand and Model

Your choice of boiler brand within the BOXT platform has a meaningful effect on the final installed price. Worcester Bosch models sit at the premium end, supported by the manufacturer’s direct relationship with BOXT. Vaillant and Ideal offer strong mid-range performance, while Baxi provides reliable, well-warranted boilers at a more accessible price point.

Brand	Manufacturer Warranty	Installed Price Range
Worcester Bosch	Up to 10 years	£2,000 to £3,200
Vaillant	Up to 5 years	£1,900 to £2,900
Ideal	Up to 7 years	£1,790 to £2,600
Baxi	Up to 7 years	£1,790 to £2,500

Worcester Bosch consistently ranks among the most reliable boiler brands in independent consumer surveys and has won Which? Best Buy recognition for over a decade. The premium price reflects that reliability record and the length of warranty available. Vaillant and Ideal represent strong value at the mid-range, with warranties long enough to provide genuine peace of mind without paying top-tier prices.

Always check BOXT’s website directly for a live quote specific to your property, as prices vary by postcode, boiler specification, and any current promotional pricing. Wondering which boiler manufacturers performed best? Check out our best boiler brands guide for the full rundown.

Check out our video on how to vet boiler brands/models in the UK:

What Affects Your Final BOXT Boiler Price?

Several factors can move your quote up or down from the headline starting price. Understanding these before you begin the questionnaire helps avoid surprises and makes it easier to compare quotes on a like-for-like basis.

• Boiler output (kW) — A 24kW model suits most one and two-bedroom properties. A 28kW to 35kW boiler is more appropriate for a three to four-bedroom home with two bathrooms. Higher output models cost more.
• Flue complexity — A standard horizontal flue with the base price. Non-standard routes, including vertical flues or extended runs through a wall, carry an additional charge.
• Smart thermostat choice — A smart thermostat comes with most installations. You can upgrade to a Google Nest Thermostat at an extra cost at checkout.
• Power flush — If your existing heating system has significant sludge build-up, BOXT may recommend a power flush ahead of installation. This is assessed from photos submitted before the installation date and quoted separately if required.
• Boiler relocation — Moving the boiler to a different position or room falls outside the standard fixed-price scope. Quotes are on a case-by-case basis following a survey.

BOXT Boiler Prices vs Competitors: How Do They Compare?

BOXT Boiler Prices vs British Gas

The most common comparison when considering BOXT is against British Gas, the UK’s most recognised heating brand. The price difference is significant. A boiler from British Gas costs between £3,000 and £5,500, depending on the boiler type, warranty, and installation work. BOXT’s starting price of £1,790 for a standard combi installation sits well below that range, enabling savings for equivalent installations.

The reason for the gap is structural rather than a reflection of quality. British Gas operates a network of engineers, a national call centre, and a business model built around in-home sales visits. These carry high overhead costs that feed into the final quote. BOXT eliminates all of that by operating online only, passing the overhead savings directly to the customer.

The trade-off is convenience for a certain type of buyer. British Gas offers an in-person survey before installation. These can be valuable for non-standard properties or homeowners who prefer face-to-face reassurance. BOXT’s online-only model works exceptionally well for straightforward like-for-like replacements but relies on accurate upfront information via the questionnaire and photo submission process.

BOXT Boiler Prices vs Heatable

Heatable is the most direct competitor to BOXT, operating the same online-first, fixed-price model and targeting the same audience. Starting prices are close, with Heatable quoting from £1,895 compared to BOXT’s £1,790. The real-world difference on a like-for-like basis can be negligible or favour either provider, based on the specific boiler and postcode.

Where Heatable differentiates itself is through its Which? Trusted Trader accreditation. This is a formal endorsement that requires businesses to pass an independent assessment of their trading practices and service standards. The Which? badge is a meaningful trust signal for buyers who place weight on independent accreditation.

Both companies offer 0% finance options, next-day installation, and fixed-price quotes. You can easily run the questionnaire on both platforms for the same boiler specification and compare the output directly. Both providers have a price match policy, so neither should significantly undercut the other on a genuine like-for-like basis.

BOXT Boiler Prices vs a Local Engineer

A qualified local Gas Safe engineer is a strong option for homeowners with non-standard properties, complex pipework, or who prefer to deal with a single known tradesperson over the long term. The average boiler installation and replacement cost across the UK is around £2,400. That sits within BOXT’s mid-range pricing, though local quotes vary considerably by region. London and the South East typically commanding a premium of 10 to 20% above the national average.

Where local engineers genuinely outperform BOXT is in installation flexibility. A local installer can assess an awkward flue route, deal with unexpected pipework, and relocate the boiler during the same visit. They can apply a bespoke judgement that an online questionnaire cannot easily capture. For a straightforward combi swap in a standard property, the pricing differential often favours BOXT while the quality of outcome is broadly comparable.

The key question is the nature of the job. For a like-for-like replacement in a typical UK home, BOXT is a compelling option on both price and speed. For anything more complex, get a quote from a local Gas Safe engineer alongside the BOXT online price before committing.

Comparison Table for BOXT Boiler Prices vs British Gas, Heatable, and Local Installers:

	BOXT	British Gas	Heatable	Local Installer
Starting installed price	From £1,790	From £3,000	From £1,895	From £1,800
Fixed price guarantee	Yes	Yes	Yes	Varies
Next-day installation	Yes	No (often 1-2 weeks)	Yes	Varies
Online quote	Yes	No (home visit required)	Yes	Rarely
System cleanse included	Yes	Yes	Yes	Varies
Smart thermostat included	Yes	Paid add-on	Yes	Varies
Trustpilot score	4.8/5	3.8/5	4.9/5	N/A
Which? Trusted Trader	No	No	Yes	Varies
Finance available	Yes	Yes	Yes	Rarely
Price match promise	Yes (beat by £50)	No	Yes	No

What Does a BOXT Boiler Installation Include?

Every standard BOXT boiler installation covers the following as a matter of course.

Full Gas Safe Installation by an Accredited Engineer

Gas Safe-registered engineers who have passed BOXT’s own 25-point vetting process install all BOXT boilers. All gas boiler installations in the UK must be carried out by a Gas Safe-registered engineer. BOXT’s network of over 15,000 accredited engineers spans the vast majority of UK postcodes.

The installation includes all standard labour, commissioning of the new boiler, a post-installation check, and a 61-point installation audit completed before the engineer leaves the property.

Whole-System Cleanse and Inhibitor Treatment

Before connecting your new boiler, the engineer carries out a whole-system chemical cleanse to remove sludge, scale, and debris that accumulate in older pipework and radiators. Left untreated, this build-up forces a new boiler to work harder, reduces efficiency, and shortens its operational life. Following the cleanse, they add an inhibitor to the system to slow future corrosion and protect components from the inside out.

Most boiler manufacturers require evidence of a system cleanse to validate the full warranty term, making this step as commercially important as it is practical.

Magnetic Filter Installation

Installers fit a magnetic filter to the return pipe running back into the boiler, capturing metallic particles before they can circulate through the system. Over time, central heating systems shed small amounts of magnetite, a black iron oxide formed by corrosion, that settles as sludge in radiators and at the base of the boiler.

The magnetic filter catches this material continuously, reducing long-term wear and protecting the heat exchanger. As with the system cleanse, many manufacturers require a magnetic filter as a condition of the extended warranty.

Smart Thermostat

Most BOXT installations include a smart thermostat as standard. Depending on the package selected, this may be a Hive, Bosch EasyControl, or Honeywell device. All allow you to control your heating remotely via a smartphone app, set schedules, and monitor energy use. Upgrading to a Google Nest Thermostat is available as a paid option during checkout.

Beyond convenience, a well-configured smart thermostat can materially reduce gas consumption by preventing the system from heating an empty home. According to the Energy Saving Trust, smart heating controls are one of the most cost-effective ways to reduce heating bills without changing behaviour, and installing them can save £110 a year in Great Britain (GB) and £110 in Northern Ireland (NI).

Standard Flue Kit and Old Boiler Disposal

The quote includes a standard horizontal flue kit, which covers the vast majority of UK installation scenarios. The engineer also removes and disposes of your old boiler on installation day at no additional cost. There is nothing left for you to arrange, store, or pay for separately.

What Is Not Included in a Standard BOXT Installation?

Certain work falls outside the standard fixed-price scope and will be quoted separately if needed:

• Boiler relocation to a different room or wall position
• Non-standard or vertical flue routes requiring additional materials or labour
• A power flush, where the existing system has significant sludge build-up beyond what a standard chemical cleanse addresses
• Additional radiator replacements beyond standard like-for-like swaps
• Any upgrades to existing pipework required to meet current Gas Safe regulations

If any of these apply to your property, BOXT identifies them during the pre-installation photo review process and provides a revised quote before the engineer arrives. Nothing should come as a surprise on installation day.

BOXT Boiler Warranty: What Are You Actually Covered For?

Warranty length is one of the most cited reasons homeowners choose one boiler brand over another, and BOXT’s position as a Worcester Bosch partner gives it a genuine advantage in this area.

Manufacturer Warranty vs Workmanship Warranty

Every BOXT installation comes with two separate layers of warranty cover that serve different purposes. The manufacturer’s warranty, which runs for the periods listed below depending on the brand, covers faults with the boiler unit itself, including parts and components that fail under normal operating conditions.

The BOXT workmanship warranty, which runs for 12 months from the installation date, covers the quality of the installation work carried out by the engineer. If a leak develops at a fitting the engineer made, or a connection fails due to workmanship rather than a boiler fault, the workmanship warranty is the relevant cover. Understanding which warranty applies to a given problem is important because the claims process differs between the two.

BOXT Boiler Warranty Lengths by Brand

Brand	Manufacturer Warranty
Worcester Bosch	Up to 10 years
Ideal	Up to 7 years
Baxi	Up to 7 years
Vaillant	Up to 5 years

BOXT registers the manufacturer’s warranty on your behalf on the day of installation. You don’t need to submit forms, call the manufacturer, or log into a portal. Documentation is stored and accessible through the BOXT app.

Warranty Conditions: What Can Void Your Cover?

Manufacturer warranties are conditional, and failing to meet the conditions can reduce the warranty term or void it entirely. The key conditions to be aware of are:

• Annual servicing — the majority of boiler manufacturers require boiler servicing every 12 months by a Gas Safe registered engineer to keep the full warranty valid. A missed service can reduce the remaining warranty term or invalidate it entirely, depending on the manufacturer’s terms.
• Approved controls — some warranty packages, particularly on Worcester Bosch models, require specific compatible controls. Using a third-party thermostat not on the approved list can affect warranty validity.
• Approved installer — the warranty is valid only when an accredited installer has installed the boiler. BOXT’s engineers meet this requirement as part of the vetting process, but any subsequent unauthorised work on the boiler can affect cover.
• Filter maintenance — the magnetic filter needs to be cleaned annually, typically during the boiler service, to remain effective and to satisfy manufacturer requirements.

Confirming the specific conditions that apply to your chosen boiler model directly with BOXT at the point of purchase is straightforward and worth doing, particularly if you are comparing warranty terms between brands as part of your decision.

BOXT Boiler Finance Options: Spreading the Cost of a New Boiler

A new boiler is rarely a planned purchase. For many households, it arrives as an emergency, which means the full installation cost lands without warning at the worst possible moment. BOXT’s boilers on finance options exist to address exactly this scenario, allowing you to spread the cost of a new boiler across monthly payments rather than paying it up front in a single transaction.

How BOXT Boiler Finance Works

BOXT acts as a credit broker rather than a lender. Novuna Consumer Finance provides financing, with authorisation and regulation by the FCA. That regulatory oversight means the agreement you enter into is governed by the same consumer credit rules that apply to any FCA-regulated loan, including a 14-day cooling-off period after signing.

BOXT offers a range of payment plans over 1, 2, 3, 5, and 10 years, including 0% APR available over 1 or 2 years, with 10.9% APR applying to longer terms. A deposit of up to 50% can be put down at the time of ordering on any plan, though no deposit is required to access the finance. Paying a deposit on an interest-bearing plan reduces both the monthly payment and the total amount of interest paid over the term.

Finance is selected at the checkout stage, not before. You complete the boiler questionnaire, receive your fixed price, choose your installation date, and then select your preferred payment method. If you opt for finance, a credit application is submitted through BOXT’s payment partner to Novuna, and a decision is typically returned within minutes. The first monthly repayment falls approximately one month after installation.

BOXT Boiler Finance: Worked Examples

The table below illustrates approximate monthly payments across different finance terms for a mid-range Worcester Bosch combi boiler installation priced at £2,400. These figures are for guidance only. Your actual monthly payment will depend on the boiler you select, your total installation cost, and the deposit you choose to put down.

Finance Term	APR	Monthly Payment (no deposit)	Total Amount Payable
12 months	0%	£200	£2,400
24 months	0%	£100	£2,400
36 months	11.9%	£80	£2,874
60 months	11.9%	£53	£3,180
120 months	11.9%	£33	£3,960

Always confirm exact figures and current APR rates with BOXT directly before agreeing to a finance plan, as rates and available terms can change.

BOXT Finance Eligibility: Who Can Apply?

Not everyone will be approved for BOXT boiler finance, and understanding the eligibility criteria before applying avoids an unnecessary credit check on your file. To qualify, you will need to meet all of the following conditions:

• Be aged between 18 and 75.
• Have been a UK resident for at least three years.
• Hold an active UK bank account that accepts direct debits.
• Have a debit or credit card registered to your home address.
• Have a stable source of income, whether through employment, a pension, or a qualifying benefit such as disability allowance.
• Be willing to undergo a credit check as part of the application.

A soft credit check is not performed at the quote stage, only when you formally apply for finance at checkout. If your application is referred rather than instantly approved, Novuna’s underwriting team may request additional information before making a final decision.

The BOXT Life Plan: An All-Inclusive Monthly Alternative

For buyers who want to avoid the upfront cost entirely while also bundling ongoing cover into a single monthly payment, BOXT offers the BOXT Life plan. Rather than purchasing the boiler outright or financing it separately, this subscription model covers the cost of a new boiler installation, annual servicing, and unlimited repairs or boiler replacement, all for a fixed monthly fee starting from £33.35 per month.

The plan is structured as a long-term agreement rather than a short-term finance product, so the total cost over the full term is higher than a straightforward purchase. However, for homeowners who value predictable monthly outgoings and don’t want to think about boiler cover, service costs, or repair bills separately, it consolidates everything into a single line on the bank statement.

As with any subscription product, reading the full terms before committing, particularly around exit terms and what constitutes a qualifying repair, is essential.

Got a common boiler problem? Check out our quick-fix guide on boiler lockout, boiler ignition faults, boiler PCB faults, faulty diverter valves, and boiler timer issues.

Compare BOXT Boiler Prices Pros and Cons

Here is an honest assessment of where BOXT performs well and where it has limitations.

The Advantages of Buying a Boiler Through BOXT

• Competitive, transparent pricing. BOXT’s online-only model strips out the costs that inflate traditional installer quotes. The fixed price shown at the end of the questionnaire is the price you pay, and the £50 price match promise provides a backstop against overpaying. For a standard like-for-like combi replacement, few national competitors match BOXT on price.

• Genuine next-day availability. For homeowners facing a broken boiler in winter, the ability to book an installation for the following working day is not a marketing claim but a regularly delivered reality, provided the order is placed before 3 pm, and the postcode is within BOXT’s network coverage. Reviews consistently reference how quickly the process moves from online quote to working boiler.

• No salespeople involved. The entire process from quote to booking is completed online without a single sales call, home visit from a commission-earning representative, or pressure to add extras at the last minute. For buyers who find traditional sales processes stressful, this is one of BOXT’s most valued features.

• Worcester Bosch partnership. The commercial relationship between BOXT and Worcester Bosch translates into meaningful discounts on one of the UK’s most reliable boiler brands. Access to Worcester Bosch boilers at BOXT’s price points, with the associated warranty lengths, represents genuine value that is difficult to replicate through independent installers.

• Strong aftercare infrastructure. The BOXT app centralises installation documentation, warranty information, and service reminders. A dedicated aftercare team is reachable by phone, live chat, and email, and the pre- and post-installation audit process creates a documented record of the condition of your system.

• Flexible finance options. With 0% APR available over one and two-year terms and longer plans at 11.9% APR, BOXT makes a significant purchase manageable on a monthly basis without requiring a lump sum at the point of crisis.

The Limitations of BOXT Boiler Installations

• Non-standard installations carry uncertainty. BOXT’s model works best when the job is a straightforward like-for-like replacement. Boiler relocations, non-standard flue routes, complex older systems, and properties with awkward access can sit outside what the online questionnaire captures accurately. Some customers report that additional costs emerged where the job turned out to be more complex than the initial assessment allowed for.

• An engineer’s finish quality can vary. BOXT uses a network of over 15,000 accredited independent engineers rather than a directly employed workforce. The standard across that network is broadly high, as the Trustpilot score reflects, but quality is not perfectly uniform. A minority of reviews note that installation finish, particularly around pipework neatness and tidying up afterwards, fell short of expectations.

• No in-person pre-installation survey. For buyers who want a heating engineer to walk through their property before a quote is confirmed, BOXT cannot offer that. The photo-based pre-installation review works well for standard properties but is not a substitute for a physical survey in genuinely complex cases.

• Weekend installations carry a surcharge. Standard installation slots run Monday to Friday. Saturday bookings are available but attract an additional charge of around £50, which is not always prominently communicated during the initial quote process.

• Online-only support has its limits. For straightforward queries and booking, the app and online support work well. Where customers report frustration is in situations involving disputes, complex aftercare issues, or circumstances that fall outside a standard process, where the absence of a local point of contact can slow resolution.

What Do BOXT Customers Actually Say?

BOXT holds an Excellent rating of 4.8 out of 5 on Trustpilot, based on over 56,000 verified customer reviews. Approximately 94% of reviewers award five stars. That volume and consistency of positive feedback across a sustained period place BOXT at the top of the boiler installation category on the platform, ahead of British Gas, which holds a significantly lower rating driven by a higher proportion of one and two-star reviews.

The rating is particularly notable given the nature of the product. Boiler installations are high-stakes purchases that happen under stressful circumstances, often when the heating has already failed. Customer satisfaction under those conditions is harder to earn than in a routine retail transaction, which makes BOXT’s score more meaningful in context.

What Positive Reviews Consistently Highlight

Speed and reliability of installation are the most commonly mentioned factors. Customers repeatedly describe the experience of booking online in the evening and having a working boiler by lunchtime the following day, a turnaround that clearly exceeds expectations formed by previous experience with traditional installers. References to British Gas quoting two-week wait times before a survey, let alone an installation, appear regularly as context for how significant BOXT’s speed advantage feels in practice.

Engineer professionalism is the second most prominent theme. Reviews frequently name individual engineers, describe them arriving on time, working cleanly, explaining the new system clearly before leaving, and in many cases going beyond the minimum required by the job. The detail in which customers describe their engineer’s conduct suggests a level of engagement that goes beyond a transactional interaction.

Price savings relative to competing quotes are mentioned consistently, with customers citing savings of several hundred pounds against other quotes for equivalent installations. The transparency of the fixed-price process, particularly the absence of additions on the day, generates repeated positive comments.

What Critical Reviews Reveal

Negative reviews, which account for a small but informative minority, cluster around a limited set of recurring themes rather than being spread across the full range of the service.

Communication during problem resolution is the most common source of dissatisfaction. Where installations go smoothly, the BOXT experience earns near-universal praise. Where something goes wrong, whether an engineer runs late, a part is missing, or a fault emerges post-installation, some customers report difficulty reaching the right person quickly and frustration with the time taken to resolve the issue.

Variability in installation finish appears in a smaller number of reviews, typically describing pipework that was functional but not neatly dressed, or minor cosmetic issues left unaddressed. These reviews rarely describe safety concerns or technical failures, but reflect the natural variation that comes with a large network of independently contracted engineers.

The overall picture that emerges from reading across the full review base is of a service that delivers on its core promise, competitive price, fast installation, and professional engineers, with a minority of cases where the aftercare response does not match the quality of the installation experience.

Is BOXT the Right Choice for Your Home?

Deciding whether to compare BOXT boiler prices and proceed with an installation comes down to matching what BOXT does well against the specific circumstances of your property and your priorities as a buyer. The platform is not universally the right answer, but for a clearly defined set of situations, it’s genuinely difficult to beat on a combination of price, speed, and convenience.

BOXT Is Likely the Strongest Option If:

• You are replacing like-for-like. A combi boiler being swapped for another combi in the same location, with standard wall access for a horizontal flue, is exactly the scenario BOXT’s model is built around. Fixed pricing, next-day availability, and competitive costs align most strongly when the job is straightforward.
• You have received a quote from British Gas or another national installer. Running the BOXT questionnaire takes two minutes and produces a directly comparable fixed price. Given that savings against British Gas regularly reach several hundred pounds for equivalent installations, the comparison alone is worth making before committing elsewhere.
• Your boiler has failed, and you need a fast resolution. BOXT’s next-working-day turnaround is a genuine differentiator for homeowners dealing with a heating emergency in winter. The ability to go from a broken boiler on a Tuesday evening to a new installation by Wednesday lunchtime is not reliably matched by any other national provider at a comparable price point.
• You’re comfortable managing the process online. The photo review process BOXT uses to assess your property before installation is a practical and efficient substitute for a physical survey in most standard cases. Buyers who prefer self-service over repeated phone calls will find the platform well designed for that approach.
• Price is your primary decision factor. For buyers who have done their research and want the best fixed price on a quality boiler brand from a Gas Safe registered engineer, BOXT consistently delivers on that requirement for standard installations.

Consider an Alternative If:

• Your installation is non-standard. Boiler relocations, awkward or vertical flue routes, significantly older pipework, listed buildings, or properties with unusual structural features are all situations where a local Gas Safe engineer who can physically assess the job before quoting is likely to produce a more accurate and reliable outcome.
• You want independent third-party accreditation. Endorsements like Which? Trusted Trader status requires businesses to pass an independent assessment of trading practices and service standards. For buyers who place significant weight on that badge when making a purchase of this size, it is worth requesting a like-for-like quote from both platforms before deciding.
• You value a long-term local relationship. No online platform fully replicates what a trusted local engineer offers over years of repeat visits, familiarity with your system, and the ability to turn up quickly when something goes wrong. If that kind of continuity matters to you, a well-reviewed local Gas Safe engineer remains a strong option, particularly for older or more complex heating systems.
• You want an in-person survey before committing. BOXT does not offer pre-installation home visits. If you need the reassurance of a heating engineer walking through your property and explaining the options face-to-face before you agree to a price, British Gas or a local installer will better serve that preference.

Final Thoughts on BOXT Boiler Prices

BOXT has earned its position as one of the UK’s best boiler installation companies by making it straightforward, transparent, and genuinely affordable to replace a boiler without navigating a process designed to extract as much money as possible along the way. For the majority of UK homeowners, particularly those replacing a like-for-like combi boiler in a standard property, BOXT represents the strongest combination of competitive price, installation speed, and aftercare infrastructure currently available from a national provider.

The fixed-price model removes the anxiety of a quote that changes on installation day. The Worcester Bosch partnership delivers access to one of the market’s most reliable boiler brands at prices that independent installers rarely match. The next-working-day availability turns what has historically been a week-long ordeal into a same-day resolution.

Non-standard installations, complex properties, and buyers who require an in-person survey before committing may be better served by a local Gas Safe engineer or, where independent accreditation is a priority, by requesting a parallel quote from Heatable for direct comparison. For everyone else, the case for at least comparing BOXT boiler prices before going anywhere else is difficult to argue against.

The two-minute online questionnaire costs nothing, commits you to nothing, and produces a fixed price that is immediately comparable against any other quote you have received. In a market historically defined by opacity and pressure selling, that alone represents a meaningful shift in whose side the process is on.

FAQs on Compare BOXT Boiler Prices

How Much Do BOXT Boilers Cost?

BOXT boiler prices start from £1,790 for a standard gas combi boiler, fully installed, including Gas Safe installation, standard flue, system cleanse, magnetic filter, smart thermostat, old boiler disposal, and warranty registration. The final price depends on the brand, output rating, and whether any non-standard elements apply. Running the two-minute questionnaire on BOXT’s website produces a personalised fixed price specific to your postcode and property.

Why Is BOXT So Cheap?

BOXT’s lower prices reflect the structural difference between an online-only business model and the overheads that traditional national installers carry. With no retail premises, no commission-earning sales representatives making home visits, and no large corporate call centre infrastructure to fund, every layer of cost that would otherwise feed into a traditional quote is removed before the price reaches the customer.

Is BOXT a British Company?

Yes. BOXT is a British company, founded in 2017 and headquartered in Leeds, West Yorkshire. It was built by Mel and Alan, former owners of Help-Link, one of the UK’s largest boiler installation businesses, and operates exclusively in the UK market. Worcester Bosch holds a minority shareholding in the business, and Brookfield Asset Management has also invested, but BOXT remains a UK-based, UK-focused company with its operations, engineer network, and customer base entirely within Great Britain.

How Does BOXT Compare to Other Providers?

BOXT’s most direct competitors in the online fixed-price space are Heatable and iHeat, both of which operate a similar questionnaire-based model and comparable starting prices. Against British Gas, BOXT consistently comes out cheaper, often by several hundred pounds, with faster installation and a higher Trustpilot rating. For most standard installations, the honest recommendation is to run the questionnaire on both BOXT and at least one alternative platform and compare the like-for-like output directly.

Is BOXT Worth It?

For a standard like-for-like boiler replacement in a typical UK home, BOXT represents strong value. The fixed-price model, next-day installation, included extras such as the system cleanse and smart thermostat, and the warranty terms available on Worcester Bosch models combine to make it a compelling option that is difficult to fault on its core promise.

What Is the Rating of BOXT?

BOXT holds an Excellent rating of 4.8 out of 5 on Trustpilot based on over 56,000 verified customer reviews, with approximately 94% of reviewers awarding five stars. That places BOXT at the top of the boiler installation category on the platform. The volume and consistency of BOXT’s rating across a sustained period, and under the pressured circumstances in which most boiler purchases are made, make it one of the more reliable trust signals in the sector.

Sources and References

• Energy Saving Trust – Boiler types explained
• Energy Saving Trust – Heating controls
• Truspilot – BOXT