WarmZilla Review – Boiler Buying Guide 2024

Last updated: May 5, 2024

Are you looking for an easier and smarter way to replace your boiler? This WarmZilla review explores why you can trust WarmZilla to take the hassle out of purchasing a new boiler.

Installing a new A-rated condensing boiler can save hundreds of pounds annually on fuel bills and help you reduce your carbon footprint.

When the time comes to replace your boiler after a breakdown or other issues, finding the right company for the job can make all the difference.

Imagine finding the perfect boiler in minutes from the comfort of your home and having it fitted within 48 hours. That’s what you get with WarmZilla!

In this review, we will explore what WarmZillia is and how it works, what types of boilers the company supplies, and the average costs of buying a boiler online via WarmZilla.

WarmZilla Review Key Takeaways:

  • WarmZilla lets you buy a boiler online and install it in as little as 24 hours.
  • It guides potential customers through a short, multiple-choice find my boiler survey.
  • WarmZilla has a network of over 500 fully qualified Gas Safe registered engineers across the UK.
  • WarmZilla supplies and installs top brands, including Worcester Bosch, Ideal, Baxi and Vaillant.
  • In addition to the installation, WarmZilla offers a system cleanse, filters and a smart thermostat.
  • WarmZilla also offers financing options if you can’t pay for the boiler in full.

What is WarmZilla?

WarmZillia is one of the leading boiler installation companies in the UK. Based in Cardiff, Wales, it aims to provide an easy, hassle-free method of buying a new boiler online.

It also provides improved customer service and speed of service compared with traditional boiler purchasing methods.

The company was incorporated in November 2014 and was set up by two heating engineers that have over 25 years of industry experience between them.

WarmZillia works online to save the consumer money without large company overheads and an on-the-road sales team to fund.

These savings are passed onto the consumer resulting in very competitive quotes for boilers.

How Does WarmZilla Work?

The WarmZillia website guides potential customers through a short, multiple-choice find my boiler survey.

The survey makes assessing suitable boilers for your property and household heating needs easier and more convenient and allows you to get a quote in just a few minutes.

The survey asks questions about your boiler fuel type, postcode, and the kind of boiler system you’ve installed. It also inquires about the number of showers and bathtubs in your household.

Wondering which boiler manufacturers performed best? Check out our best boiler brands guide for the full rundown.

Warmzilla review website

The questions will also gather information to assess whether additional parts are required for the installation.

These can include longer pipework or replacement flues so that the new installation meets the up-to-date safety legislation and recommendations.

Once you’ve compared the fixed price quotes online via the user-friendly website, you can place a boiler order online and choose an installation date that suits you, often within just a few days.

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Taking the survey comes with no obligation. You don’t have to provide personal information or an email before purchasing.

Who Installs WarmZilla Boilers?

WarmZilla review gas safe boilers

WarmZilla has a network of over 500 fully qualified Gas Safe registered engineers covering all corners of the UK. They’re available locally and ready to install customer orders at any time.

All engineers undergo a vigorous vetting process to ensure they can fit boilers for WarmZilla according to industry standards.

This includes checking their background, technical ability, and certifications. Anyone who doesn’t meet WarmZilla standards isn’t allowed in.

WarmZilla also offers constant training for its engineers and consistently monitors their progress.

What Boilers Brands do WarmZilla Supply?

WarmZilla features a range of top brands on its website. The top favourite brands include:

Worcester Bosch

Worcester Bosch is one of the most trusted and best-selling boiler brands in the UK. The brand has consistently delivered high-quality heating solutions since its establishment in 1962.

Several Worcester Bosch boilers have received Which? Best Buy awards for over a decade, making their products reliable and their services top-notch.

Worcester Bosch develops eco-friendly and highly efficient boilers that align with the sustainability goals of the UK government.

The brand has received various accolades for eco-friendly initiatives and features excellent guarantee offers and customer services.

Their parts are also easy to source, and their commitment to sustainability and innovation makes them one of the leading players in the UK boiler industry.

Vaillant

Vaillant boasts a legacy that dates back to 1874 in the boiler and heating industry. It’s one of the original boiler brands and has earned its right among other award-winning brands that churn out premium quality boilers.

Vaillant boilers are proudly made in the UK and engineered to an extremely high standard, backed by a hefty 10-year warranty.

The brand has received numerous awards, including the “Which? Best Buy” accolade for its boilers and the “Quiet Mark” for their silent operation.

Vaillant is a trusted name in home heating thanks to its dedication to sustainability, cutting-edge technology, and customer satisfaction.

Ideal

Ideal is known for quality and affordability and has built a solid reputation in the heating world.

The Vogue and Logic lines from Ideal are popular for reliability and energy efficiency and have won accolades like the Good Housekeeping Reader Recommended award.

Ideal was recognized in the Queen’s Award for Enterprise in Innovation for helping reduce carbon emissions.

The brand strongly focuses on customer satisfaction and is a reliable choice for heating engineers, homeowners, and eco-conscious consumers.

Baxi

Baxi has earned its reputation over a century by developing innovative and reliable products.

This British-based boiler brand has its manufacturing centre in Preston, Lancashire, and has a solid offering of combi, system, and regular boilers engineered to pass the test of time.

Baxi offers excellent customer service and has multiple product excellence awards thanks to its commitment to sustainability and quality.

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The brand offers maximum value for money, and its legacy of excellence makes it a trusted choice for heating professionals and homeowners.

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

What Are The Costs of Buying A Boiler via WarmZilla?

The prices quoted via WarmZilla will vary depending on:

  • The property type.
  • The type of fuel the boiler will use.
  • The boiler brand and model chosen.
  • The power output needed.
  • If other services are selected such as extended boiler warranties.

However, by using an online boiler supplier, consumers cut out the middleman and obtain competitive prices.

Typically, the prices WarmZilla quote start at around £1,499 and go up to around £2,500, depending on the factors discussed above.

WarmZilla also offers the best price guarantee. This gives you peace of mind that you’ll receive the best value available on the market.

WarmZilla will price match and offer a £50 cashback if you receive a lower quote from a competitor.

Best boilers

Did you know the efficiency of your boiler can impact the amount of energy it uses and ultimately impact your heating bill costs? Check out our guide to the best condensing boilers to learn more. 

You may also find our review of the best eco-friendly boilers of interest.

What Else Does A WarmZilla Installation Include?

In addition to competitive pricing for the boiler installation, WarmZilla also offers a range of extras when purchasing a boiler through them as follows:

A Full System Cleanse

Before the new installation, the Gas Safe Registered heating engineer will clean the current heating system to remove debris and sludge.

This service ensures your boiler can last longer by protecting it from the historic build-up of sludge, a number one concern for boilers.

System Filter

The filter is fitted to the return pipe of your boiler. It helps catch any sludge from the pipework and adds another layer of protection for your new boiler

Filters are usually cleaned out annually during a boiler service.

Smart Thermostat

You’ll also get a smart thermostat from WarmZilla. It enables you to control the heating system remotely using an app from anywhere, which may help generate further savings on energy bills.

A Long Warranty

WarmZilla provides long product warranties of up to ten years, depending on the make and model of the boiler chosen. Long warranties provide the customer peace of mind that the new boiler’s parts are covered.

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.

Finance Options

WarmZilla also offers finance options that enable the customer to spread the cost of a new boiler and the installation.

WarmZilla has a partnership with Novuna, which allows you to pay in monthly installments that suit you.

The payments can vary depending on the overall boiler installation cost and the finance terms offered. However, the monthly installments can be as low as £9.70, and no deposit is required.

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They can be a great financial help, especially if the new boiler is an unforeseen expense.

Did you know the efficiency of your boiler can impact the amount of energy it uses and ultimately impact your heating bill costs? Check out our guide to the best condensing boilers to learn more. 

You may also find our review of the best eco-friendly boilers of interest.

Warmzilla Reviews from Previous Customers

Trustpilot is useful for checking a business’s credibility and is a reliable source of customer feedback. Reviews from past customers can give you a good idea of what to expect and the sort of service you’ll receive.

WarmZilla has a score of 4.7 on Trustpilot from 1,650 reviews. This level of feedback provides WarmZilla with an overall ‘excellent’ rating.

WarmZilla Reviews

The company has received 5 stars from 86% of the reviews, with customers praising the online system’s convenience, staff communication, reliability, and speed. Most express their awe at having their new boilers installed in 24 hours!

WarmZilla also receives plenty of praise for its professionalism and for making the entire experience stress-free. Many homeowners recommend the company and note that it features competitive pricing that is cheaper than other online sites.

WarmZllia also has excellent reviews on their Facebook and Google Business pages.

WarmZilla Reviews Summary

The process of buying a boiler online via WarmZilla is simple, hassle-free, and convenient. The company cuts out the middleman and saves the customer significant amounts of money by keeping overheads low.

The easy-to-use, find my boiler online survey guides you through a short questionnaire that recommends appropriate boilers for your property and allows WarmZilla to provide a fixed-cost quote for the installation.

You can also choose from various payment options, including boiler financing. You can pick a date as close as 48 hours after purchase and have expert, Gas Safe, and DBS–checked engineers fit your new boiler for free!

The online ordering process has revolutionised the industry, and WarmZillia has a great reputation that is supported by high-scoring reviews on Trustpilot and other websites. Therefore, it’s highly recommended, and you should consider it when you’re next in the market for a new boiler.

What size boiler is right for your home? If you are considering a combi boiler, it is largely determined by the number of radiators in your home.

Check out our complete guide to new boiler installation here if you are wondering about the best type of boiler for your home. 

How much may a new boiler cost? Are you considering converting from a conventional to a combi boiler? Use our boiler installation cost calculator to get an estimation.

Sources and References

  • https://energysavingtrust.org.uk/advice/boilers/
  • https://www.trustpilot.com/review/warmzilla.co.uk?search=online+tool

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