British Gas

New Boiler Cost British Gas & Installation Guide 2025

How much a British Gas New Boiler will Cost

British Gas install more boilers than anyone else each year and are a well known household brand.Everyone has heard of them and they have been installing boilers for longer than I've been alive.


But are the boilers they install expensive and provide good value for money? In short the answers are yes (they are expensive) and probably not (good value for money). But why you ask - well read on and get all the insider info and make sure your next boiler is both high quality and great value for money.


British Gas new boiler cost summary

British Gas are huge. They employ thousands of Gas Safe registered engineers and undertake every type of boiler installation. Which is reassuring as many installers only focus on the easy jobs, like gas combi boilers.


So it's nice to see that British Gas install combi boilers as well as system boilers, conventional (regular or heat only) boilers, and install full new central heating systems. They also cover all fuel types: natural gas (which most boilers run on), as well as LPG (liquid petrolium gas) and oil boilers.


Not only that they install the best boiler brands, so you'd think their customers would be highly pleased with the work and value for money from a British Gas boiler installation. Well, you might be suprised to learn on the whole British Gas customers are not happy and the starting point is probably because they are so expensive.

Boiler Installation Type British Gas New Boiler Cost
Combi £2,300 - £7,000
System £2,800 - £7,500
Conventional £2,800 - £7,500
Combi (replacing back boiler) £3,800 - £8,500
Combi (replacing Conventional) £3,400 - £8,000
New Central Heating £3,500 - £10,000

Who are British Gas?

The starting point to understand why they are so expensive is looking at the company and the vast size of it. British Gas started as the UK state owned monopoly but are now part of a huge international PLC Centrica. And they work on a massive scale.


British Gas are the market leader in terms of sheer numbers of new boilers installed in the UK each year and they need to be as they employ over 8,000 Gas Safe registered engineers.


They have huge offices across the country housing big support teams including a huge marketing team.



Why British Gas Boiler Prices are so Expensive

British Gas can be up to £900 more expensive for the same boiler than some of their competitors, which is a lot. Looking into the reasons why it actually doesn't look like profiteering, they just a lot of overheads to cover. Let's run through how this works.


They employ a lot of people and have a huge wage bill and because they are a big company they have department after department and lots of inefficiencies. So the boiler prices British Gas charge have to cover the cost of all these people.


They also spend millions upon millions of pounds a year on marketing and advertising, paying expensive agencies to make TV adverts and paying bands such as Blur megabucks to use their songs in their adverts. The customer who buys the new boiler has to pay for all of this, therefore they are expensive.


Fabulous finance deals like 2 years interest free credit are really expensive - if you think about it the finance company offering the loan only makes money on the interest they charge. If there is no interest then they charge the boiler company a fee for each boiler finance package they sell. And of course British Gas pass that cost onto the customers.


And British Gas are a household name and have very high awareness and consideration levels, so maybe, just a little bit, they have high prices as people keep coming to use them and they can get away with it? maybe...


Our view is always shop around and get competitive quotes.

Are British Gas Boilers worth the high installation price?

Potentially, although probably not. British Gas do have a massive support network should things go wrong with your new boiler. And they are easy to find.


However, most British Gas boiler installations only come with a 5 year warranty as standard. Longer warranties are available but willl cost you more. But most boiler installers will offer you a 10 or even a 12 year warranty as standard and be cheaper than British Gas for exactly the same boiler...... hold on let's run over that again..... you can get exactly the same boiler installed by a Gas Safe registered engineer for about £500 cheaper AND twice the warranty length as standard.


I think we've answered this one.


Which boilers British Gas Install

British Gas installs all boiler types: Combi boeilrs, System boilers and Conventional boilers from s panel of top rated manufacturers including



Do make sure you get a couple of quotes to see if British Gas are providing good value for money on your boiler installation.


British Gas Boiler Installation options and prices

As we've seen British Gas do offer a wide range of boilers for installation across all the top manufacturers and undertake the full range of job types. So we've collated some of the most installed boilers of the moment and ranked them based on the installation cost British Gas are currently charging. All of the proces quoted are for new combi boilers installed in exactly the same location with no other work required and a stanard 5 year warranty

New Boiler British Gas British Gas Installation Cost
Ideal Logic 24 £2,175
Baxi 600 £2,275
Ideal Logic Plus 24 £2,350
Worcester Bosch Greenstar 2000 25kW £2,650
Worcester Bosch Greenstar 4000 30kW £2,850
Worcester Bosch Greenstar 8000 30kW £3,200

British Gas boiler installation cost calculator

What's really handy is understanding all the component parts of a boiler installation quote and therefore what you are really paying British Gas for - which can help to show why they cost so much comapred to some competitors.


Now, you maybe don't need add the items in this shopping list, but full transparency helps you make up your mind on whether British Gas are good value for money.


Item British Gas Cost
Replacement Boiler £600 - £5,000
Finance Cost £200
Labour cost £1,000 - £3,500
Removing Back Boiler £1,250 - £1,800
Mobing boiler location £600 - £2,000
changing boiler type £1,000 - £3,000
boiler flue £150 - £900
system flush £150 - £400

British Gas Boiler cost reviews

Not great news here really for British Gas, they have over 182,000 reviews on Trustpilot and have a score of 4 out of 5, which gives them the rating of Great. Now in fairness not all the reviews are about British Gas' boiler installations, but a lot of them are. Plus the poor ratings don't really shine a good light on all the activities the company undertakes. Which is a real shame for such a well known brand.


But the British Gas Trustpilot rating does help answer whether you get value for money from the expensive British Gas boiler installations, with their customers overwhelmingly voting that you don't, and potentially their service isn't worth the additional cost versus their competitors for exactly the same product.

What are the advantages of a British Gas Boiler Installation

There are of course advantages to using British Gas. The quesiton is do they make the expensive price good value for money?


The main advantage is the vast number of engineers they have on the books (over 8,000!) which should mean you are in safe hands should something go wrong with your boiler. In theory, yes this is true, but in reality any proper aftercare is sold to you via their cover plans so you end up paying even more to glean this advantage.


They do offer a really good range of finance packages to help spread the cost of your new boiler, but as with all things these do come with additional costs, meaning you are paying even more.


And of course British Gas do install energy efficient boilers which will help you to lower your gas bill by using less fuel than old inefficent boilers. But so does every other installer and you can potenetially pay a lot less for the same product.


And the disadvantages of a British Gas Boiler Installation

High prices, high prices, high prices.


British Gas payment options

British Gas do offer a market leading range of boiler finance packages ranging from high interest loans for bad credit ratings all the way through to no deposit 2 years interest free credit pay monthly plans


British Gas Pay Monthly boilers

Yes, one of the benefits if choosing Bristish Gas to install your new boiler is the fact they offer many different types of pay monthly finance plans at many different interest rates, some requiring no deposits, but all subject to status. Their most popular finance plans at the moment are:


  • 0% APR over upto 4 years with no deposit needed.
  • Buy Now Pay Later
  • 9.9% APR over upto 10 years with no deposit required
  • 15.9% - 19.9% APR over upto 10 years with no deposit required


British Gas 0% Interest free credit boilers

British Gas' headline offer at the moment is their industry leading upto 4 years interest free credit, which is available with £0 deposit. Which sounds exceptionally compelling, but it's key to look at the detail as if it looks too good to be true then it probably is.


Finance companies who offer boiler loans make their money on the interest they charge. So if a loan is 0% interest then they charge a fee to the boiler installer for that loan instead of charging interest. It is then down to the boiler installer, British Gas in this case, to decide whether to pass that fee onto the customer through their boiler prices or take the fee out of their margin.


We'd recommend comparing the boiler cost quoted by British Gas against some competitors who are not offer 0% APR to see how competitive the price realy is.


British Gas New Boiler Finance Representative examples

British Gas Boiler Cost £2,500
Deposit £1,000
Amount of credit £1,500
APR 9.9%
loan term 120 months
Monthly payment £19.39
Total payable £2,326.92
Interest charged £826.92

How to get a new boiler installed by British Gas

The first question after reading this guide is do you still want to get a new boiler from British Gas due to the expense? If it's still a yes then it's fairly straight forward:


  • Jump on the British Gas website and find there online booking tool or online quote tool.


  • Answer a few quesitons online about your home and heating needs


  • Receive a Quote either online or after your home survey


  • Buy your boiler using the many ways to pay on offer


  • Book your installation day this is the big day when you will get your new boiler fitted


Or, and probably the best recommendation, is run some price comparisons with an independent site like New-Boiler-Costs.com and get free boiler quotes, meaning you'll hopefully save hundres of pounds for the same product.


Conclusion: British Gas New Boiler Costs

British Gas can be an appealing choice when looking for a new boiler installer; they are a household name and generally fairly trusted. However they are renowned for being very expensive and not generally very highly regarded by customers who have used them. So really they'd not be our top recommendation.


Instead pick a highly rated installer, plus save over £500 (on average) on the same boiler installation as British Gas - the easy way to do that is through a comparison service like New-Boiler-Costs.com.

FAQs British Gas New Boiler Costs

Do British Gas have good reviews?

British Gas are rated as Great on Trustpilot with a 4 out of 5 star rating from over 182 thousand reviews. 53% of customers rated them as 5-star but a massive 27% of customers only rated them as 1-star.

How much does a new boiler from British Gas cost?

Typical new boiler installation cost from British Gas is about £2,300 for a simple combi boiler job and rises with complexity, however they often have promotions and special offers running which can make this cheaper and or spread the payment with an interest free boiler finance offer.

Are boiler installations from British Gas a rip off?

Unless you manage to secure a good discount from British Gas or qualify for a 0% APR finance deal it could be argued the price premium British Gas charge versus competitors for the same boiler installation job is not good value for money.

Does a British Gas Boiler quote expire?

Most British Gas new boiler quotes are valid for a 14 day period from the day you receive the quote. However, unless British Gas happen to have a major pricing change between your quotes (e.g. a money off promotion ending) then the price quoted in your new quote will not be materially different from the old one.

Do British Gas offer fixed cost boiler quotes?

British Gas do not currently offer any type of fixed cost online quotes, all of their quotes come with the caveat that should the boiler installation be different to the one quoted then the price will change to reflect this.

How much is a combi boiler from British Gas?

Typically a new combi boiler installation from British Gas starts at £2,300, with the price increasing as the job complexity increases.

Does it take long for British Gas to install a new boiler?

British Gas installers take the same amount of time as every other installer: simple combination boiler swap jobs can be done within a day, sometimes more quickly, whilst more complex system type swap installation jobs can take much longer and up to 5 days for the most complex of jobs.

What does a British Gas boiler service cost?

The starting price for boiler service by a Britsih Gas engineer is £85.

What does British Gas boiler cover cost?

The cost of British Gas boiler cover depends on what you want included with the policy. The entry level product is £19 a month and jumps up to £27 a month for the top tier plan.

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