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A new boiler installation can be a great way to reduce heating costs and improve your central heating system's performance. The cost of investing in a new boiler can be quite high, ranging anywhere from £1,600 - £6,000. However, it can pay off in the long run, as you’ll be able to notice savings of up to £490 on your yearly heating bills.
Identifying the best boilers in Leeds and finding the one that meets all your requirements involves a multitude of factors that can't be determined without the proper guidance. This underscores the importance of having a skilled heating expert who can evaluate your home.
This is why it’s crucial to find an installer you can trust. Ordinarily, this can take days of strenuous searching and comparing prices all on your own, but our service can be a great way to avoid all the hassle and make sure that you’ll receive the right person for the job.
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The cost of a new boiler replacement ranges anywhere from £1,600 - £6,000. Whether your boiler replacement will be at the lower or higher end of this price range depends on the boiler you choose and the kind of boiler swap you need.
| Type of boiler | Cost excluding installation | Cost including installation | Average, inc. installation |
|---|---|---|---|
| Combi* | £600 - £4,000 | £1,600 - £6,000 | £3,800 |
| System* | £600 - £3,000 | £1,600 - £5,000 | £3,300 |
| Conventional* | £600 - £3,500 | £1,600 - £5,500 | £3,550 |
| Electric | £500 - £3,000 | £1,500 - £5,000 | £3,250 |
| Biomass** | £6,000 - £12,000 | £9,000 - £20,000 | £14,500 |
Replacing an old combi boiler with a new one costs around £1,600 - £6,000, including installation. Switching a combi with a system boiler is a bit more expensive, costing about £1,600 - £6,500. Finally, replacing a conventional boiler with a system boiler will cost you somewhere between £2,525 - £7,425. Be sure to keep these estimates in mind when deciding on your new boiler replacement.
The exact boiler you need can also depend on its output size, which determines whether it is appropriate for your home's size and the number of radiators and bathrooms you have.
| Number of rooms and radiators | Boiler size (kW) | ||||
|---|---|---|---|---|---|
| Bedrooms | Radiators | Bathrooms | Combi | System | Conventional |
| 1-2 | 0-10 | 1 | 18-27kW | 9-18kW | 9-18kW |
| 3-4 | 10-15 | 2-3 | 28-34kW | 18-26kW | 18-26kW |
| 5+ | 15-20 | 4+ | 35-43kW | 26-40kW | 26-40kW |
Generally, any new boiler cost will be higher for models with a higher output across all types.

Combi boilers are the most energy-efficient type of boiler. These boilers supply heating and hot water on demand and are ideal for single-bathroom houses with lower hot water consumption. Combi boiler installations in Leeds are generally electric and gas for on-grid homes, although newer fully electric models are getting popular. Oil boilers are also available for those off the regular grid. However, switching boilers to a combi may not always be the ideal solution.
If you have a higher water demand, a combi will not be the most viable solution. Similarly, while electric combis have very high efficiencies, this may not necessarily mean lower costs, as electricity per kilowatt-hour (kWh) can be more expensive than gas in Leeds.
The best combi boilers in the UK can cut costs significantly for smaller homes. This is because, by generating water on demand, they have less need to constantly reheat a larger water storage. Combi boiler prices are also more favourable when factoring in installation costs since they have fewer components to add.

A system boiler is more suitable for homes or facilities with higher hot water demands, as they can store water for later use and provide better hot water flow rates. They are ideal for running multiple radiators, hot water taps, and showers. System boilers, along with conventional boilers, take up more space than combi boilers and have additional external components.
This is due to the need for storage vessels, since they do not provide on-demand hot water. System boilers can be powered by various fuel sources, but the most common choice is natural gas. They can also use LPG (liquefied petroleum gas), oil, or electricity as the energy source.

Conventional boilers consist of a boiler unit, an open-vented hot water cylinder, and cold water feed and expansion tanks (usually located in the loft). The system operates by heating water in the boiler and then storing it in the hot water cylinder. Conventional boilers can run on various fuel sources, including natural gas, oil, or electricity.
When it comes to boiler replacements, swapping a conventional for other types is easier than installing a new one (due to the need for the extra elements and pipework they require). These boilers require additional loft space as well, which makes them less viable for smaller homes, but can be the best boilers for large properties (5+ bedrooms) with high hot water consumption.
Regardless of what type of boiler you want, it’s important to find an engineer who can install it adequately for a good price. This can be difficult to do on your own, requiring hours of research. If you, like most people, don’t have time for that, our service is a great alternative. Fill out a single 30-second form, and we’ll get you up to 3 free, non-binding quotes from reliable installers near you.
Click the button below to receive the best prices from the best installers in your area.
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The cost of a new boiler replacement ranges anywhere from £1,100 to £5,000. Whether your boiler replacement will be at the lower or higher end of this price range depends on the boiler you choose and the kind of boiler swap you need.
Replacing an old combi boiler with a new one costs around £1,500 - £4,500. Switching a combi with a system boiler is a bit more expensive, costing about £1,580 - £5,000. Finally, replacing a combi with a conventional boiler will cost you somewhere between £1,100 - £5,000. Be sure to keep these estimates in mind when deciding on your new boiler replacement.
However, since the cost of boiler installation depends on numerous factors, you will have to consult multiple Gas Safe registered engineers. This can be a laborious process, taking days of research to find a trustworthy installer with the right price for you. Luckily, we can speed up the process using our service.
All you have to do is fill out a 30-second form and we’ll do the rest by reaching out to thoroughly vetted installers in Leeds. We will then connect you with them, so that you can find the best boiler deal that meets all your requirements. Click the button below to get started and you’ll receive up to 3 free, non-binding boiler quotes.
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There are numerous installers with glowing reviews in Leeds. With so many to choose from, here are some of the most well-regarded ones we could find.
| Company | Response time | Trustpilot score |
|---|---|---|
| Clever Energy | Next day | 4.6/5 (1,000 reviews) |
| Direct Heating Installations | 1 to 2 days (according to customers) | 4.9/5 (134 reviews) |
| Aquaheat Group | Next day | 4.3/5 (226 reviews) |
| Dyno-Rod Plumbing Yorkshire | Next day | 4.6/5 (241 reviews) |
| N M Plumbing | Same day (in Leeds) | 4.4/5 (11 reviews) |
Before choosing an installer, you should do the following:
To ensure that you are getting a safe and high-quality boiler replacement and installation, you will, naturally, want to find the best installers in your area. However, looking up installers and comparing their services and costs on your own can stretch on for hours or even days. That’s why we offer a better way:

Instead of wasting your precious free time, let us help you get started in just 30 seconds. All you have to do is fill in our short form, and we’ll connect you with up to 3 of the best boiler installers in your area. They will offer you quotes for a new boiler installation, so you can find the installer you want to work with and secure the best deal for your home at the same time.
Simply click below to request free, non-binding quotes now!
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Find installers in the largest cities in the UK:
Installing a boiler in Leeds can cost between £1,600 - £6,000, including both purchase and installation costs. The price can vary based on the boiler type, its output, and what installers in Leeds will charge.
Clever Energy, Direct Heating Installations, Aquaheat Group, Dyno-Rod Plumbing Yorkshire, and N M Plumbing all install boilers in Leeds, among many other highly-rated companies.
A boiler service can cost between £65 and £300. Servicing is recommended annually as paying for this can be far lower than the cost of replacing parts or the whole boiler.

Rawal Ahmed is a writer at GreenMatch with an interest in sustainability and a background in tech journalism and digital marketing.
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