New boiler installation
Need a new boiler? Compare boiler quotes and models to find your perfect match
Key points
- A new gas system boiler typically costs around £1,500 for the unit alone according to Checkatrade
- You need to select the right boiler based on your home's size, heating requirements and hot water demand
- Checkatrade says installation costs can range from £3,000 to £15,000, depending on the type of boiler and installation complexity
- You should perform regular maintenance to keep your boiler running efficiently and prolong its lifespan
Which type of boiler is best for my home?
The type of boiler for your home depends on factors like the size of your home, the number of people living there and your budget.
You can choose from several different types of boilers:
Combi-boilers
Heat the water as you need it and don't have a storage tank. Some combi boilers don't work with smart thermostats like Nest and Hive
Heat only or conventional boilers
Have a hot water tank or cylinder that stores hot water for use when you need it
System boilers
Work like a heat-only boiler and take up less space than conventional boiler water tanks
Electric boilers
Designed to replace gas boilers and provide heating and hot water. You can purchase system, combi and heat-only electric boilers
Heat pump boilers
Extract heat from the air or ground to produce hot water. They heat water more slowly, requiring longer operation and perform best in well-insulated homes
All new boilers are energy efficient and come with an energy-rated label, like fridges and other kitchen white goods.
Consider doing a boiler comparison to evaluate the best option for your needs.
Why get a new boiler?
Consider getting a new boiler if yours is reaching the end of its lifespan, if you have continuing problems with it or if you're moving house soon.
A new boiler can be expensive, though it might save you money in the long run by reducing maintenance costs and improving energy efficiency. It can also make your house more appealing if you're looking to sell.
When should I replace my boiler?
Boilers should last between 10-15 years with proper maintenance. If yours is approaching 10 years, you might want to think about getting a new one.
You should also consider boiler insurance for peace of mind.
What factors should I look for in a new boiler?
You need to consider a few things when shopping around for a new boiler. Using a boiler comparison tool can help you evaluate options.
| Factor | Description |
|---|---|
| Boiler type | Combi, heat-only, system, electric or heat pump boilers |
| Boiler size | Consider the size of your home and heating needs |
| Boiler reliability | Evaluate different brands and their reputation for reliability |
| Boiler efficiency | Look for high efficiency ratings to reduce energy bills |
| Budget | Consider upfront costs and long-term savings from energy efficiency |
These relate to your energy needs, so think about the size of your home and how many people live there.
Discover more about which boiler you might need with our handy boiler replacement guide.
What is boiler efficiency and why does it matter?
Boiler efficiency refers to how much fuel the boiler can turn into usable energy and how much fuel is wasted.
A modern, efficient boiler with a 94% efficiency rating wastes only 6% of fuel, which escapes as gases through the flue pipe. For every £1 you spend on heating your home with a 94% efficient boiler, you waste 6p.
An efficient boiler provides more energy for your money compared to an older, inefficient model. As a result, you'll enjoy lower energy bills.
How much is a new boiler?
This depends on which type of boiler you're installing.
According to Checkatrade, the average cost of conventional boilers is around £1,500.
| Boiler type | Average cost (supply only) |
|---|---|
| Gas system | £1,500 |
| Oil system | £2,000 |
| Electric system | £2,100 |
| Biomass | £10,000 |
| Condensing | £1,500 |
What to consider when you compare boiler quotes
Getting boiler comparison quotes can help you decide on the right model and installation. You need to provide some details about yourself and your home, including:
- Your address
- Your job
- The size of your house
- When you'd like the job to start
How much does boiler installation cost?
This depends on a few factors, like the type of boiler you're having fitted and how complicated the removal of your old boiler is.
According to Checkatrade, on average, including labour costs, you can expect to pay anywhere between £3,000 and £15,000. New boiler installation is an investment and will save you money in the long run. Gas boiler supply and installation costs range from £3,000.
- Replacing a combi boiler with another combi boiler costs £2,500-£4,000
- Converting a back boiler to a combi boiler costs £4,000
- Moving your boiler to a new location costs £1,000
Use a boiler comparison tool to get a better idea of pricing.
Our expert says...
"Upgrading your boiler to a newer, more efficient model is a great investment for your home; not only could it increase the value of your property, but it could also save you money on your energy bills."
Frequently asked questions
Which boilers are the cheapest to run?
Checkatrade reports that gas boiler running costs start at around £90 per month. Gas generally costs less to run than electricity, so the running costs of a gas boiler are likely lower than those of a combi.
What is the most reliable boiler in the UK?
GreenMatch considers Worcester Bosch, Viessmann, Vaillant, Ideal and Alpha to be some of the best and most reliable boiler brands in the UK.
You can extend your boiler's lifespan by keeping up with your boiler maintenance. Check out our guide for top tips.
What happens when a new boiler is fitted?
When you get a new boiler, the installer removes the old one and installs the new boiler, attaching it to your pipes. The installer places the new boiler in the same location as the old one or somewhere new. If the boiler goes in a new spot, the installer drills a new flue hole through the wall, and they might need to lift your floors to run some pipes.
How long does it take to install a replacement boiler?
The installation of your new boiler can take anywhere from six hours to four days, depending on your house, where the boiler is located and the fitter.
Do boilers come with a warranty?
Most new boilers come with a warranty as standard and usually last between one and five years. The warranty covers you and the boiler manufacturer for repairs or replacement when you install a new boiler. It protects you if something goes wrong.
How long does a boiler last?
Most boilers last between 10-15 years. Make sure you keep up with regular servicing to maintain it properly.
Will a new boiler save me money?
New boilers are more energy-efficient, so they can save you money on your gas bill. Modern boilers use less gas to produce the same amount of heat as older models.
How much value does a boiler add to a house?
More than a third of people looking to buy a new home want a new boiler or central heating system installed. You might feel strange updating your home before moving. Installing a new boiler can increase the value of your home, usually by more than it costs to install - so it might be worth looking into.
Are new boilers more efficient?
All modern boilers are condensing boilers, as technology has developed so that they waste less energy while keeping costs to a minimum. They're also much smaller than older boilers and take up less space in your home.
All boilers now come with an energy-efficiency rating, so you can see which types are the most efficient. Generally, modern boilers are more efficient than older, traditional styles.