Get £400 trade-in on an old boiler. Offer ends 30th June 2015. Find out more

Boiler cost calculator

Get an estimate for buying a new boiler from British Gas. It'll only take a couple of minutes.

If we think it'll be a straightforward job to replace your boiler you can get an online quote to book and buy online. If not, you can book a free home visit from a Heating Advisor.

Payment options to suit you

Pay in full

You can pay for your boiler in full with major debit and credit cards or by cheque.

Once you agree to an installation, we’ll usually take a 10% deposit. The full amount is only paid once your new boiler is up and running.


Pay monthly

As a credit broker, we can arrange a finance agreement through Barclays Partner Finance, meaning you can choose to spread the cost of your new boiler over three to ten years.[1]

  • 14.9% representative APR.
  • No upfront deposit required.
  • Make additional payments at any time.

A representative example of a payment plan

† The rate of interest is variable downwards only. It cannot go up.

Reasons to choose British Gas

91% of customers recommend us

British Gas boiler installations are recommended by 91% of customers.

See how customers rate us

Pay monthly with no upfront deposit

We could help you spread the cost over 3-10 years or you could choose to pay in full if you’d prefer.

Payment options

Your home is left clean and safe

Our Engineers leave your home neat and tidy and will arrange the safe disposal of all waste.

Step by step guide

Aftercare included

This offer includes HomeCare 200™ which provides service and repair for your boiler, controls and central heating system for one year.

Latest offers

British Gas New Heating Limited is authorised and regulated by the Financial Conduct Authority for its consumer credit activities. Registered in England and Wales 6723244.

[1] Clydesdale Financial Services Limited T/A Barclays Partner Finance. Availability of credit depends on your status and credit checks.

[2] Mon-Fri 7:30am-8pm, Sat 8am-6pm, Sun 8:30am-5pm. Limited service applies during public holidays.

* 91% recommendation rating is based on 1,463 customer responses collected between 09/12/2014 & 02/02/2015.

91% of customers recommend British Gas boiler installations*. See below for more detail on how they rate it. Reevoo

British Gas Boiler Installation Service reviews verified by Reevoo

4,764 reviews

Reviews from: Sort by:
Quality of installation
Advice from Heating Adviser
Overall rating
Scores 9.0 out of 10 based on 4764 reviews
Show more score details
1 out of 10


Bristol Homeowner
Initial installation etc excellent, gave 9s and 10s. A couple of weeks later it rained and water poured down newly installed flue all over contents of ironing basket necessitating 4 loads of washing. Apparently the lead flashing on the roof had not been fitted correctly causing the leak; leaving me regretting my previous glowing review. Not impressed.
Published on: 29 May 2015
10 out of 10


Stafford Homeowner
An excellent service and we are very very happy with the finished product.
Published on: 28 May 2015
1 out of 10


sheerness Homeowner
I would like brittish gas to finnish what they said they were going to do in our quote. Do you think a phone call might help to let us know. they take your money and forget about you, don't pay for the job until it is completed
Published on: 28 May 2015
10 out of 10


warrington Homeowner
I found the installation of the new boiler went well. It was achieved by the professionalism of the gentleman who gave me the quotation, Jason , and the engineer Paul .
Published on: 28 May 2015
10 out of 10


kirkby in ashfield Homeowner
From having the engineer come to service the boiler on a tuesday,to be told we needed a new asap,they were great,a man came to measure up that afternoon and two days later in went the new boiler,the service was brillant and we cant rate them highly enough.
Published on: 28 May 2015