£400 boiler scrappage discount[1]. Offer ends 31st October 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.[2]

  • 14.9% representative APR.
  • No upfront deposit required.
  • Make additional payments at any time (subject to charges).

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] Offer closes 31st October 2015, excludes warm air units and is available for domestic properties only (up to 40kW). Offer will be applied at point of sale and is subject to boiler installation by British Gas. You can’t use this offer with another British Gas offer unless the other offer states that it’s OK.

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

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

* 91% recommendation rating is based on 4,967 customer responses collected between 09/12/2014 & 15/06/2015.

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

7,163 reviews

Reviews from: Sort by:
(9.0 out of 10)
Quality of installation
Advice from Heating Adviser
Overall rating
Scores 9.0 out of 10 based on 7163 reviews
Show more score details
(8 out of 10)


Cranbrook Homeowner
Not unnaturally I expected Mick would put the new boiler in the same position as the old one : in fact it was put a bit to one side and looks wrong. I wasn't consulted about this change.
0 of 1 people found this review helpful
Published on: 10 October 2015
(10 out of 10)


Huntingdon Homeowner
The installer was very professional, he cleared up after what was a job that involved creating a mess, thoroughly nice chap who explained how things worked.
Published on: 10 October 2015
(9 out of 10)

Confirmed purchaser

the fitters carried out a neat and tidy job, they were professional and friendly. the quality and standard was very high. as a company they were very good.
Published on: 10 October 2015
(10 out of 10)


Brighton Homeowner
Our boiler installation was fantastic, James was our installer and he was polite considerate and very helful. One of the most important factors was that he was not afraid of our very excitable dogs, (Staffies), they greated him with exuberance and he recipricated.
James appreciated that we fed and watered him throughout the 2 days.
We hope that you will relay our appreciation to James; a fantastic young man.
1 of 2 people found this review helpful
Published on: 10 October 2015
(9 out of 10)


The service was professional and hassle free. The people who carried out the work were friendly and very helpful. I would definitely use them again and recommend them to others.
5 of 5 people found this review helpful
Published on: 10 October 2015
(10 out of 10)


St Ives Homeowner
The whole experience was very good. I had everything explained to me to begin with and the work was carried out with little disturbance to me. Once it was all fitted everywhere was left tidy and clean. Also I know the boiler was fitted to a high standard so I should have no problems in the future.
5 of 5 people found this review helpful
Published on: 10 October 2015