We'll pay the VAT. 20% OFF the cost of a new boiler. Offer ends 30th April 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.^

  • 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.

^ Availability of credit is subject to status, affordability assessment and credit checks.

* 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

2,996 reviews

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8 out of 10


Haywards Heath
Very helpful under difficult circumstances (we are an elderly disabled couple who had just moved into our new home where a gas leak was found).
Because the leak was in a pipe buried somewhere under concrete the best thing to do was to have a new boiler installed and by-pass the leak.
This was done after only a few days and we were given an electric fan heater to help us keep warm.
Published on: 27 March 2015
4 out of 10


Sales guy got it all wrong. Costs are excessive for parts and installation. New controller over£120 and was from the 70's. The style not discussed. Wrong boiler delivered and lucky installation guy dropped in night before or we would have been delayed. Overall, too expensive and poor sales.
Published on: 26 March 2015
10 out of 10


Very happy with service provided from start to finish. Process went as described , installation engineer was excellent , overall very slick and professional had return visit from engineer as promised to ensure all was operational and to my satisfaction.
Published on: 26 March 2015