Whether you're installing a gas, oil or electric boiler, you'll need to hire a professional boiler engineer to install your model safely and efficiently. Find out how much it costs to install your new boiler and whether you're eligible for a grant here.
How much does a Boiler Installation cost?
Average cost in UK: £800
Get local prices
£600
LOW COST
£1000
HIGH COST
£800
AVG COST
Next Step: Find out exactly how much your project will cost.
How much does a Boiler Installation cost?
Average cost in UK: £800
Get local prices
£600
LOW COST
£1000
HIGH COST
£800
AVG COST
Installing a new boiler can save you money on your fuel bills, keep your home warm and help the environment – so find out here how much it’ll cost you to install a new boiler. This guide will cover the prices and costs involved when installing various types of boilers, including combination, gas, oil and electric boilers. We’ll also guide you with tips for hiring a boiler engineer and provide information on related installation grants.
Combi boiler installation prices
A combi boiler is ideal for those who live in a small property as they are compact and fit into small spaces. Unlike traditional boilers, combis don’t need a tank to store hot water, instead they heat on demand and come in gas, electric and oil fired models. The price of a new combi boiler will vary depending on where you buy it from and how big your system needs to be; for example:
- A Vaillant combi boiler purchased straight from the manufacturer costs between £725 and £910
- According to Which? it costs around £600 to replace an old boiler with a new one
Get more information about combi boiler installation costs.
Gas is the cheapest, most efficient type of heating fuel you can use, costing around £490 a year, says Which? These factors make gas boilers the most popular kind – with 69% of people installing them in the UK.
- A new gas boiler will cost between £600 and £1,000 from Baxi, plus around a £600installation fee
- The average cost of running a gas boiler (in a three-bed semi-detached and well-insulated home) is around £720 per year, reports Which?
Get more information on gas boiler installation prices.
Oil boiler installation costs
If you live off the gas and electric mains, for instance in a rural area, you may need to heat your home with an oil boiler, which costs more to install and run, for example:
- A Grant Vortex Pro External combi oil boiler costs £2,310 plus between £600 and £1,000 to fit
- According to Which? it costs on average £1,100 to run an oil boiler per year
Electric boiler installation costs
Electric boilers are a popular alternative to gas and are cheaper to install, making them especially good for newly converted properties.
- An electric boiler costs between £500 and £1,300 plus around £600 for installation
- Which? says that an electric boiler costs around £1,600 per year to run
Hiring a boiler engineer
It’s essential that you hire a qualified boiler engineer to install your new boiler; whichever type you choose:
- Hire a Gas Safe engineer for gas boiler installation
- A qualified electrician will be able to install your electric boiler to British Standards 7671: 2008 Requirements for Electrical Installation
- An OFTEC registered engineer can safely install, repair or service your oil boiler
- Hire a HETAS registered engineer to install a solid-fuel burning boiler
Boiler installation grants
You may be able to get a grant towards the cost of installing your new boiler, look out for:
- The Warm Front Scheme in England
- The Warm Homes Scheme in Northern Ireland
- The Fuel Poverty Scheme in Wales
- Energy Supplier Grants
- The Scottish boiler scrappage scheme
- Local government grants
