Get £400 trade-in on an old boiler. Book appointment. Offer ends 30th June 2015

The offer explained

Boiler offer

Boiler offer

Get £400 back when you trade-in your old boiler.[1]

Fixed price guarantee

Payment options

With our fixed price guarantee, what we quote is what you pay. You can pay monthly with no upfront deposit[2] or pay in full.

Aftercare for 1 year

Aftercare for 1 year

You'll also get HomeCare 200™ for a year which covers your full central heating system, controls and your new boiler.

Boiler costs

Get an estimated cost for installing a new A-rated boiler.

Boiler costs

Our boiler range

We have a range of boilers to suit your home.

Worcester Bosch Group Vaillant Baxi

Our step-by-step guide

A guide to getting a new boiler with British Gas.

Reasons to choose British Gas

Fixed price quote

We guarantee a fixed price

When our Heating Advisors quotes a price, we guarantee it won’t increase even if there’s unexpected work to do.

Boiler cost calculator

No deposit

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

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

Free aftercare

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] This offer is valid until 30th June 2015 and is available for domestic properties only. 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 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

4,756 reviews

Reviews from: Sort by:
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Advice from Heating Adviser
Overall rating
Scores 9.0 out of 10 based on 4756 reviews
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1 out of 10


Its taken British Gas 6 years to sort out my problem and numerous visits from the engineers. It has cost me a fortune and I have never received any form of compensation.
Wish I had never used them in the first place. I must say their engineers are polite even if they don't know what they are doing.
Published on: 26 May 2015
8 out of 10


The engineer who installed the boiler could not have been more helpful on the day,particularly when the boiler which had been recommended could not be installed as agreed because the flue would not fit through my roof space. As a result of this a plasterer had to be called out to fill the hole the fitter had put in the ceiling to install the flue, and the boiler had to be fitted on the wall at a lower level than I had anticipated. None of this was the fault of the fitter but I was disappointed that the heating adviser did not take enough steps and measurements to ensure that the boiler he advised me to order could be fitted in my kitchen in the way he told me it would be, but at least it led to me getting a substantial refund on the price quoted as the lengthy flue he had ordered could not be fitted.
Published on: 26 May 2015
8 out of 10


Luton Homeowner
Heating advisor needs to be more diligent when doing the survey. The installation engine came across several issues that I think should of been flagged on the initial survey
Published on: 25 May 2015
10 out of 10


Lower Earley, READING, Berks. Homeowner
The Boiler-replacement went very well, from the booking of the Job to the Parts Delivery, finishing with the Rubbish Removal. The Contractor, who did the work, was excellent!
Published on: 25 May 2015
10 out of 10


The installation engineer was prompt, clean and installed the boiler with a minimum of fuss.
Published on: 25 May 2015
  • Repairs to your boiler & controls, central heating system, radiators, pipework and hot water system (including unvented and pressurised cylinders).
  • A replacement boiler if it's less than seven years old and can't be repaired.
  • Repairs caused by accidental damage.
  • Unlimited call outs every year.
  • Parts and labour included.*
  • Call us day or night if things go wrong.
  • Over 6,500 engineers ready to help.

There are a few exclusions though:

  • Removing sludge or hard-water scale from your boiler or central heating system.
  • Fixing any damage caused by sludge or hard water scale (if we’ve told you on a previous visit that remedial work is required).
  • Shower or spa bath repairs.
  • System improvements or upgrades.

* Limits apply, please see full terms & conditions.