How Much Does a New Boiler Cost?

If you are thinking about replacing your boiler, one of the first questions is usually how much the installation is going to cost.

There is no single price that applies to every home. The boiler itself is only part of the overall cost — the existing heating system, boiler location, pipework and amount of installation work required can all affect the final quotation.

As a general guide, Energy Saving Trust currently gives an average replacement gas-boiler cost of around £3,700 in Great Britain. Your actual quotation may be lower or higher depending on the property and work involved.

Contact Us Arrange a Free Boiler Survey

How Much Does a New Boiler Cost?

If you are thinking about replacing your boiler, one of the first questions is usually how much the installation is going to cost.

There is no single price that applies to every home. The boiler itself is only part of the overall cost — the existing heating system, boiler location, pipework and amount of installation work required can all affect the final quotation.

As a general guide, Energy Saving Trust currently gives an average replacement gas-boiler cost of around £3,700 in Great Britain. Your actual quotation may be lower or higher depending on the property and work involved.

Contact Us Arrange a Boiler Survey

What Affects the Cost of a New Boiler?

Several things can change the price of a boiler replacement.

Boiler Type and Size

The boiler needs to be suitable for the property and its heating and hot-water requirements.

A small flat and a larger home with several bathrooms may require very different boilers. Choosing the right appliance is more important than simply choosing the cheapest or most powerful model.

A Straight Replacement or a System Change

Replacing an existing boiler with a suitable new boiler in the same location will generally involve less work than changing the type of heating system.

For example, converting from a traditional system with a hot-water cylinder to a combi boiler may require additional pipework and alterations.

Does Moving the Boiler Increase the Cost?

Usually, yes.

Moving a boiler can involve alterations to gas pipework, heating pipes, the flue, condensate drainage and electrical connections.

The proposed new location also needs to be suitable for the appliance.

If you would like the boiler moved, mention this during the survey so the work can be included accurately in the quotation.

What Else Can Affect the Installation Price?

Depending on the existing system, a quotation may also need to consider:

Changes to gas or heating pipework
Flue requirements
Condensate drainage
Heating controls or a new thermostat

This is why two homes receiving the same boiler model can still have different installation costs.

What Should a Boiler Quote Include?

A good quotation should make it clear what work is actually being provided rather than simply giving you a price for the boiler itself.

At ReliaHeat, we assess the property and existing heating system before preparing a detailed quotation.

We will explain the recommended boiler, the installation work required and the applicable manufacturer guarantee before you make a decision.

Is the Cheapest Boiler Quote Always the Best Option?

Not necessarily.

When comparing quotations, check that you are comparing the same level of work.

A cheaper quotation may use a different boiler, include different controls or exclude work that another installer has included.

You should also consider the suitability of the boiler, the manufacturer’s guarantee and who will be carrying out the installation.

The aim should be to find the right installation for the property rather than simply the lowest initial price.

Get an Accurate Boiler Installation Quote

The most useful way to find out what a new boiler will cost for your home is to have the existing installation assessed.

ReliaHeat provides free initial boiler surveys across Edinburgh, Midlothian and East Lothian, followed by a clear quotation based on the boiler and installation work required.

Contact Us Arrange a Free Boiler Survey