Boiler Installation in London

Boiler Installation in London Matty August 24, 2022
London phone box

Boiler installations in London

You don’t have to pay London prices for a boiler installation – thanks to WarmZilla!

If you’re looking to get a new boiler in London, you may have already done your research to find out that the average cost of a new boiler in London is around £2,300, but is this the best deal out there? The short answer, is no.

Save your time by answering a few questions to get the right boiler for your home at the best price. 

Boiler prices

Boiler prices vary based on many factors like the boiler size, type, relocation and your home location. It may not be a surprise when you see the prices inflate in London, but does that seem fair? Probably not. When you shop at WarmZilla, you’re guaranteed to get more bang for your buck! If you do find a cheaper quote elsewhere, let us know, and we’ll beat it by £50.

We’ll make sure to give you the best boiler price, great customer service and the trusted expertise of a Gas Safe engineer to take care of the installation job.

Estimated Boiler Prices

To give you a rough estimate, if you’re shopping around for a new boiler in London, you could expect to pay approximately £1,700 for a combi boiler, £2,300 for a system boiler or a conventional boiler or get a back boiler conversion for £2,700 – the option of a back boiler conversion is a more expensive because of the complexity of the installation job.


The best boiler brands on the market


At WarmZilla, we sell world-leading boiler brands such as Worcester Bosch, Ideal, Viessmann, Vaillant, Vokera, ATAG and more!

Worcester Bosch Boilers

One of the best boiler brands on the market. Worcester Bosch currently holds the Royal Warrant to supply heating to the Royal Family and has won the Which? Best Buy award for their range of boilers for the last ten years. Not only do Worcester Bosch boilers offer reliable performance, but they are also known for their outstanding build quality.


Ideal Boilers

Ideal is one of the pioneers in bringing high-efficiency boilers to the market, and they continue to manufacture robust boilers at affordable prices. Ideal offers budget-priced boilers with good quality and exceptional customer service.


Viessmann Boilers

Viessmann offers a full range of high-quality products that represent German engineering at its finest. Extremely reliable boilers that offer great performance are one of the reasons why Viessmann regularly picks up the Which? Best Buy award. Viessmann has a wide range of high energy-efficiency combi, system, and regular boilers.


Looking for a new boiler installed in London?

Choose WarmZilla. When you buy a new or replacement boiler with WarmZilla, your boiler package will also include;

  • Your chosen boiler, along with the necessary flue kit needed for your central heating system
  • Installation by a qualified Gas Safe Engineer 
  • Removal of your old boiler and parts
  • A FREE system cleanse of your central heating system
  • Chemical Inhibitor for added protection for your new boiler
  • 10-year guarantee, which will be registered by WarmZilla after installation
  • A FREE magnetic system filter for ongoing protection
  • The Neomitis RF Digital Wireless Room Thermostat

There’s also 0% interest for 2 years on selected models, plus you can take advantage of our great-value tech bundles – meaning you save on your boiler purchase AND get smart thermostats and home devices included.

Here at WarmZilla, our mission is to give you all the help and support you’ll need to find the best boiler for your home at the best price; that’s why we’ve written a blog about the best combi boilers, best system boilers and best conventional boilers in 2022. So make sure to check them all out!

Brand Partners
Boiler replacement in London

WarmZilla makes buying a boiler simpler, faster, and cheaper. By removing salesmen from the process, we save a fortune, and we pass that saving on to our customers. Also, because we fit so many boilers every year, we get a good price on them, allowing us to offer our best price boiler guarantee. If you find a cheaper boiler price, we’ll beat it by £50.

Answer some simple questions about your home in our online survey and we’ll give you a selection of boilers that suit your requirements, choose the boiler that you like the look of, select your installation date and you’re done.

The price you pay is fixed, so if your boiler installation turns out to be more complicated than we originally thought, you won’t pay a penny more.

Your Gas Safe engineer will come from or the surrounding area. WarmZilla has a network of Gas Safe engineers around the U.K known as WarmInstallers.

By buying your boiler from WarmZilla, you are still supporting local tradespeople that are vetted and subcontracted by WarmZilla to fit your boiler.

WarmZilla customers think that the WarmZilla service is ‘Excellent’, based on an average review score of 4.8 out of 5 on Trustpilot.

Each and every WarmInstaller is thoroughly vetted by WarmZilla before fitting a boiler and with every boiler installation, they are required to complete a pre and post-installation checklist to ensure that each and every job is completed to very specific standards.

After a job is completed, we take multiple photographs which are sent to our engineering team in-house for review.

This is how WarmZilla ensures high standards of boiler installation, on every boiler replacement we fit.

In most cases, WarmZilla can install your new boiler within 48 hours of ordering. If you are without hot water or heating, please get in touch with us. We may have additional cover in that will allow us to fit your boiler the next day. 

Most boiler installations are completed within one day. If it’s a simple job like a combi to combi boiler swap then we may be able to get the job done in 4 to 5 hours.

If you are converting a regular or system boiler to a combi, then please allow for up to two days’ work. Our heating engineers will always do their best to leave you with heating and hot water overnight.

WarmZilla install premium boiler brands such a ATAG, Worcester Bosch, Vaillant, and Viessmann. We also install budget boilers such as Ideal and Vokera. This gives a nice range of reliable boilers whatever your budget.

Any boiler sold by WarmZilla comes with Gas Safe installation, system filter, system cleanse, inhibitor, wireless thermostat, up to 12 years guarantee, any flues or extension kits you may need; plus, if your condensate or gas pipes require upgrading – that’s included in your fixed price boiler quote too!

You can also upgrade your wireless thermostat to a choice of smart thermostats and you can add radiators to your order – all your heating requirements with one easy online purchase.