£200 off a new boiler. Offer ends 31st August 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 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

5,178 reviews

Reviews from: Sort by:
Quality of installation
Advice from Heating Adviser
Overall rating
Scores 9.0 out of 10 based on 5178 reviews
Show more score details
10 out of 10


Reading Homeowner
All materials were delivered as arranged. All work was carried out as quoted and everything was left clean and tidy at the end of the installation. All flooring and worktops were covered where possible. I am a pensioner and the different engineers were all very affable and helpful where decisions had to be made which means a lot to someone living alone. I hasten to add that I did supply endless cups of tea (or cold drinks) to keep everyone happy!!! The engineer who was 'in charge' of the installation phoned me next day to make sure I did not have any problems.
0 of 1 people found this review helpful
Published on: 30 June 2015
10 out of 10


Brecon Homeowner
The advice and instalation was good, the instalation was done quite quickly and the new boiler is working very well.
6 of 8 people found this review helpful
Published on: 25 June 2015
5 out of 10


Stourbridge Homeowner
No discussion took part as to which boilers were available. We were told that the boiler would be better than our last one which is not the case. (May be more efficient). Hot water takes a very long time to reach the tap, let alone how much water is wasted getting to it. At the moment we don't use the hot tap as it takes too long to wait for it. My old water boiler was far quicker. New smart meter fitted but not registering usage at offices or on handset so can't see how much gas is being used by appliances as advertised, only electric. Several phone calls made (at my expense) but nothing done about it.
10 of 12 people found this review helpful
Published on: 25 June 2015
8 out of 10


Eckington, Pershore Homeowner
W e are delighted with the boiler and we are already feeling a difference.
I would have liked a fuller explanation from the person dealing with the
3 of 9 people found this review helpful
Published on: 24 June 2015
10 out of 10


Clifton, Swinton, Manchester Homeowner
Extremely pleased with every aspect of the job; very competent, professional and pleasant personnel.
5 of 8 people found this review helpful
Published on: 23 June 2015
10 out of 10


Lichfield Homeowner
An excellent service from beginning to end.
8 of 10 people found this review helpful
Published on: 23 June 2015