£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 (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] 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

5,913 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 5913 reviews
Show more score details
(10 out of 10)


Broadstone Homeowner
We had excellent advice from the Heating Adviser and the installation of the new boiler was carried out efficiently and with minimum disruption. All in all very satisfactory.
Published on: 30 July 2015
(10 out of 10)


Knaphill Homeowner
Well organised and well executed - builder, electrician, boiler installer and rubbish removal all seamlessly integrated within the day. Very friendly team as well :-)

I was a bit upset when a new Hive controller was announced days after the older version was installed - it appears I can upgrade to this new version for another £99 :-(
Published on: 30 July 2015
(10 out of 10)


Northampton Homeowner
We are completely happy with the choice of boiler and the fitting of it.
Published on: 30 July 2015
(10 out of 10)


telford TF1 Homeowner
professional technicians, no fuss no mess during and after installation of boiler
Published on: 30 July 2015
(3 out of 10)


N/a Homeowner
The boiler works OK.
But the salesman's description of the job led me to believe it would neat and tidy. But it wasn't.
The pipework to the boiler is unsightly and spoils a recently refurbished cloakroom / wc.
I have had to buy pipe encasements to hide this mess. And so far, I haven't had the promised reimbursement for them.
I am completely unimpressed, and very disappointed.
I would not advise anyone to use this boiler installation.
Published on: 30 July 2015