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

4,733 reviews

Reviews from: Sort by:
Quality of installation
Advice from Heating Adviser
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Scores 9.0 out of 10 based on 4733 reviews
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10 out of 10


mansfield Homeowner
great service friendly engineers clean and tidy ,a pleasure to deal with
Published on: 22 May 2015
10 out of 10


Birmingham Homeowner
The installation went very smoothly. The young man who did the majority of the work (Jai - I think) was lovely. He was polite and efficient, he explained in a way the even I would understand. Good job.
Published on: 22 May 2015
10 out of 10


Newstead, Melrose. Homeowner
The engineer explained everything to us in a way we could understand, and was very helpful in showing what the layout would look like. The fitting engineer we cant praise high enough, the workmanship was exceptional and the finished job of the highest standard.
Well done.
Published on: 22 May 2015
10 out of 10


Highbridge Homeowner
Good service and follow up call came as promised. We had the boiler ordered, delivered and fitted in three days
Published on: 22 May 2015