Boiler cost calculator

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Use our boiler cost calculator to find out the estimated cost of installing a new boiler or central heating system in your home.

Or, for a no-obligation, fixed price quote specific to your home, book an appointment with an expert Heating Adviser.

Heating

Do you have gas central heating at your property?

Radiator

Do you want to have new radiators installed?

Current boiler

Do you currently have a Conventional or Combi boiler? (Boiler types explained)

New Boiler

What type of new boiler would you like? (Boiler types explained)

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Your estimate (based on the information you provided)

Book an appointment with your local Heating Adviser and they will visit your property for free to assess your specific heating needs and provide a no-obligation quote. They'll talk you through your options and give you advice on how you could improve the energy-efficiency of your property.

British Gas New Heating Limited is authorised and regulated by the Financial Conduct Authority for its consumer credit activities.

[1] Offer closes 31st December 2014, excludes warm units and is available for domestic properties only. Offer will be applied to quotes issued by the Heating Adviser and is subject to boiler installation by British Gas.

[2] Availability of credit is subject to status, affordability assessment and credit checks.

[3] Based on comparing the savings for upgrading a G-rated to an A-rated condensing boiler with a full set of heating controls. Saving figure is illustrative and based on a gas-heated 3 bedroom semi-detached house. Savings assume a gas price of 4.21p/kWh. Source: http://www.energysavingtrust.org.uk/Heating-and-hot-water/Replacing-your-boiler (07/14).

Conventional boilers take up more space, because you need two tanks: one to store cold water in your loft and another in your airing cupboard to supply hot water. They take a little longer to heat up but are ideal for families or large houses where more than one hot tap will be in use at the same time.

Combi or combination boilers are ideal if you want to maximise space, because they do not need a separate hot water tank or cold water storage tank. They heat up water when you need it but if you often run several taps at once, you may find your hot water flow isn’t as powerful as with a conventional boiler.

The boiler and heating system you need will depend on the type of property you live in and how many people live there.

We cannot provide an online estimate for a Combi to Conventional boiler conversion. Please call us on 0800 327 7475 to book an appointment with your local Heating Adviser.


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.

Or

Pay monthly

We can arrange a monthly finance agreement with Barclays Partner Finance, meaning you can choose to spread the cost of your new boiler over three to ten years[1].

  • 12.5% representative APR.
  • No upfront deposit required.
  • Make additional payments at any time.

A representative example of a payment plan

Reasons to choose British Gas

Fixed price quote

We guarantee a fixed price - with no hidden surprises.

Aftercare

Free aftercare included for your boiler and heating.

Calendar

Priority installation dates for those in need.

Home

Our experts leave your home clean and safe.

British Gas New Heating Limited is authorised and regulated by the Financial Conduct Authority for its consumer credit activities.

* 5008 respondents between 1st July - 31st July 2014.

[1] Availability of credit is subject to status, affordability assessment and credit checks.

[2] The interest rate cannot go up.