There is no doubt that the electric boilers are becoming more popular throughout the United Kingdom because of their clean, easy-to-maintain nature compared to gas-based boilers. As people face increasing expenses due to new environmental restrictions and the UK government’s plan to achieve zero emissions by 2050, one question arises for many people:
How much does an electric boiler cost in the UK in 2026?
It will depend on a variety of aspects: boiler capacity, the type of building you live in, the installation costs and the further operation costs. In some cases, businesses and homeowners also consider electric boiler hire as a flexible and cost-effective solution for temporary or emergency heating needs.
An electric boiler operates by heating water through electrical resistances instead of burning any fuel. It therefore does not require a gas supply or a flue pipe and there is no danger of carbon monoxide poisoning. The electric boiler fits directly into the existing wet system, so you can keep your radiators, your boiler and even your thermostat while changing only your heat source.
While storage heaters store heat at night when electricity is cheap to heat up during the day, an electric boiler can give you immediate heat as per your requirements.
The cost of the boiler unit itself varies significantly based on output (measured in kilowatts) and brand quality.
Property Type | Boiler + Install Cost | Est. Annual Running Cost |
Studio / Flat | £2,000 – £3,500 | Under £1,000 |
2–3 Bed House | £3,000 – £5,000 | £1,200 – £2,500 |
4+ Bed House | £4,500 – £6,000+ | £2,500 – £3,000+ |
Commercial Property | £6,000 – £15,000+ | Varies by use |
A large number of homeowners in the UK will be able to find a suitable system within the price bracket of £1,500 – £3,500, just for the boiler. More advanced and commercial systems can easily cost more than £10,000.
Installation makes up a significant part of the overall cost. Although electric boilers may not be as difficult to install as gas boilers (no flue, no gas pipes), costs may go up depending on the infrastructure of your home.
Some factors that will cause installation costs to increase are:
Always get at least three quotations from certified electricians/heating engineers. Make sure your installation team is NICEIC or NAPIT certified for electrical work.
This is the key aspect that most purchasers ignore. An electric boiler converts almost all of the electrical energy into thermal energy. Hence, it is the most efficient boiler on paper. Nevertheless, electricity is far more expensive than gas in the United Kingdom.
Money Saving Tip: You may want to consider getting a boiler with Economy 7 or Economy 10 meters that offer discounted rates during nighttime periods to save money on the cost of power. Solar panel installation can further lower operating costs.
Smart thermostats, like the Hive and Nest models, can help save up to 10–15 percent per year through energy savings.
Type | Installation Cost | Running Cost | Efficiency |
Electric | £500 – £3,000+ | £1,000 – £3,000 | ~100% |
Gas | £800 – £2,000 | £600 – £1,200 | 90–95% |
Oil | £1,500 – £3,500 | £900 – £1,800 | 85–90% |
Heat Pump | £7,000 – £15,000 | £800 – £2,000 | 200–400% COP |
Although gas boilers are more economical to operate, electric boilers cost less to install, emit nothing directly and have efficiencies close to 100%. The heat pump boasts the highest efficiency of operation, but its installation costs are much higher.
The electric boiler is obviously the better choice for areas without access to gas, as well as apartments.
Choosing the right type is important for matching your property’s needs:
Provide heating and instant hot water without a storage tank. Ideal for smaller properties with lower simultaneous hot water demand. Cost range: £800 – £2,500.
Work with a separate hot water cylinder. Better suited for larger homes with multiple bathrooms. Cost range: £1,500 – £3,500.
Store a large volume of heated water for high-demand properties. Often used in commercial settings. Cost range: £2,000 – £5,000+.
For businesses and temporary heating needs, hiring an electric boiler is often more practical and cost-effective than buying. Electric boiler hire avoids the upfront capital cost and provides flexibility.
The main benefit of electric boilers is that they have low-maintenance requirements. The absence of combustion, no need for a flue and a reduced number of moving parts compared to gas boilers make servicing easy and infrequent.
Since there is no gas used, a Gas Safe engineer is not needed – you can get an electrician instead.
The cost of purchasing and installing an electric boiler in the UK in 2026 is estimated to be between £2,000 and £6,000 or more, with operating costs being in the range of £1,000-£3,000 per annum. Even though the operating costs are relatively high compared to a gas-powered boiler, its easy installation process, nearly perfect energy efficiency and no carbon emission during operation make it a very interesting option.
Electric boilers can prove to be the best option for properties not connected to the national gas network. In addition, renting an electric boiler offers much greater flexibility compared to owning one.
For more details, see the benefits of electric boiler hire.
Rapid Boiler Hire offers electric boiler installation and rental in the UK. If you require heating immediately or are looking for a temporary heating solution, we have all the answers.
Call us now for a prompt and free quotation.
Electric boiler units typically cost between £500 and £3,500. With installation included, the total cost usually falls between £2,000 and £6,000+, depending on property size and installation complexity.
Electric boilers are more expensive to run than gas boilers due to higher electricity unit prices. However, they are nearly 100% efficient and running costs can be reduced with smart controls, Economy 7 tariffs, or solar panels.
Electric boilers usually have a lifespan of 10 to 15 years if serviced properly. They last about the same time as gas boilers; however, their maintenance needs are less.
Servicing is advised annually but is not mandatory, unlike the gas boiler (which is legally required). An electrician can conduct servicing for connections, pressure and safety valves. Servicing usually costs between £80 and £150.
Yes — particularly useful in cases of sudden breakages, construction works, hospital operations, and business premises where instant heat is required without investing in equipment. Daily rental rates begin at £50.
For a small flat, a 6–9kW unit is typically sufficient. A medium-sized 3-bed home may need 9–12kW. Larger homes may require 12–15kW+. A heating engineer can carry out a heat loss calculation for an accurate recommendation.
Yes. Electric boilers can be installed to replace gas boilers and use the same radiators and pipework. There is just a need to disconnect the gas supply and the flue from the system.