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myBoiler Installation Cost Calculator
Households in the UK rely on having a working boiler, especially during the winter months when temperatures can reach below freezing. Estimating the cost of a new boiler can be confusing. From identifying the best boiler for your house to factoring in labour time and fees, if only there were a simple tool to use.
With the help of our boiler installation cost calculator, which is a free-to-use tool, you can get an idea of what to expect.
Table of Contents
Boiler Installation Cost Calculator
Using Our Boiler Installation Cost Calculator
Our boiler installation cost calculator will help you by providing a clear starting point.
Simply put in some basic details, such as the type of boiler you need, how large your home is, and any additional things you may need, and the calculator will estimate the cost. This provides an approximate amount that you can budget for before requesting professional installers to give you more exact quotations.
Boiler fitting is not all a question of selecting the right model; efficiency, system type, installation complexity, and add-ons like pipework or thermostats have to be taken into account, too.
Our boiler calculator helps you compare choices and set a realistic budget from the start.
Try our free boiler cost calculator now and take the guesswork out of heating system budgeting.
Average Boiler Installation Costs in the UK
The boiler installation cost may vary depending on the type of boiler you choose to employ and the size of your property. The following is a rough guide to the costs you are likely to pay:
Standard 1 Bedroom Flat
| Boiler Type | Cost |
|---|---|
| Combi boiler | £1,800 – £2,500 |
| System boiler | £2,100 – £2,900 |
| Traditional boiler | £2,600 – £4,000 |
| Biomass boiler | £6,000 – £8,500 |
Small House (1–2 bed)
| Boiler Type | Cost |
|---|---|
| Combi boiler | £2,000 – £3,000 |
| System boiler | £2,500 – £3,500 |
| Traditional boiler | £3,000 – £4,500 |
| Biomass boiler | £7,000 – £9,000 |
Medium House (3–4 bed)
| Boiler Type | Cost |
|---|---|
| Combi boiler | £2,500 – £4,000 |
| System boiler | £3,000 – £4,500 |
| Traditional boiler | £3,500 – £5,500 |
| Biomass boiler | £9,000 – £12,000 |
Large House (5+ bed)
| Boiler Type | Cost |
|---|---|
| Combi boiler | £3,000 – £5,000 |
| System boiler | £3,500 – £5,500 |
| Traditional boiler | £4,000 – £6,500 |
| Biomass boiler | £12,000 – £15,000 |
Boiler Installation Cost Breakdown
To provide a clearer indication of how much a boiler installation might cost, let's take the case of a typical scenario. Here we review Installing a new combi boiler costs for a model that's energy efficient and being used as a replacement for an old existing combi boiler in a three-bedroom semi-detached property.
For the boiler by itself, this would cost between £1,800 and £2,500. When labour and installation are added, you can expect to pay a further £600 to £1,200.
Often, pipework adjustments are needed as well, which will usually cost between £300 and £600. Taking out the existing boiler is an expense to include as well, normally in the £100 to £300 range.
Optional extras are also worth considering, such as smart thermostats. These can cost between £200 and £400, for example, and a magnetic filter or a system flush could be a further £150 to £350.
In general, this type of replacement would usually be between £2,800 and £5,400, depending on the chosen boiler brand, installation difficulty, and extras. Simple replacements like these will be at the lower end of the scale, though relocation jobs, large amounts of pipework, or complete system upgrades will cost more.
Boiler Types Explained
Below we take a look at the four main types of boilers as highlighted within the earlier cost table:
Combi Boilers
Combi boilers are small units that provide warm water and provide hot water immediately from the boiler, without the requirement of an independent cylinder or tank. They are highly efficient and save space, making them ideal for apartments or houses with confined areas.
System Boilers
Used alongside a hot water cylinder to store warm water, system boilers can handle more substantial hot water demands. They're perfect for medium and larger houses where two or more taps, showers, or baths can be used at the same time.
Heat-Only Boilers
Traditional or heat-only boilers use both a hot water cylinder and an unvented cold water storage tank, often found in the loft. They are most common in old houses that contain traditional heating setups, but can be a good option if you have correctly positioned pipework and tanks already present.
Biomass Boilers
By burning organic materials such as wood pellets, chips, or logs, biomass boilers are often considered a more environmentally friendly option compared to fossil fuel boilers. This is due to using renewable energy sources and can significantly reduce carbon emissions. However, they typically require more storage space and need regular maintenance, and as such are better-suited to larger properties with sufficient outdoor space.
When Should You Replace Your Boiler?
Knowing when to replace your boiler will ultimately save you money and hassle in the long run. Boiler repairs can quickly add up, and often, when a boiler begins to be problematic, it gets worse.
Signs that your boiler should be replaced include:
- Frequent breakdowns
- Higher energy bills
- Leaks or poor heating
- Loud or unusual noises
- Unavailable replacement parts
Spending money on a new boiler has several benefits. New boilers are designed to be far more energy-efficient, so this will cut your monthly heating bill as well as provide more effective performance.
New boilers emit less, and this leaves you with a lower carbon footprint and a greener home. You'll be saving money as well as enhancing comfort and dependability for the future with the right boiler for your house.
Ways to Save on the Cost of a Boiler Installation
Boiler fitting is a costly expenditure, but it is possible to save money on it. One of the simplest steps is to have quotes from local fitters compared. Having quotations from various installers and comparing prices ensures you get a competitive price and also have an idea of what the service is about.
Choosing the right type of boiler for your house is very important. If you install an unsuitable boiler, you could end up paying more upfront and finding it less efficient to run. On the other hand, if a boiler you install isn’t powerful enough, it may struggle to heat your water or central heating system.
It’s worth checking your eligibility for the Boiler Upgrade Scheme (BUS), a government-funded scheme to help homeowners and businesses pay for low-carbon heating systems. If eligible, you could receive up to £7,500 off the cost of your new boiler.
Is It Cheaper To Install a Boiler in Summer?
Generally, yes. Boiler installation demand tends to be weaker during the summer months, which can lead to quicker bookings when finding a local heating engineer and sometimes more favourable pricing compared to the middle of winter.
The overall costs for a new boiler installation can vary depending on the size of your property, boiler type, boiler brand and where in the UK you are located. Whether or not the process is likely to be relatively straightforward or not can also influence the total price.
By being aware of the differences between combi, system, and conventional boilers. Understanding how much they can influence your new central heating cost can help you make an educated decision on which to choose and how much you should expect to spend.
Our boiler installation cost calculator, helps you receive an accurate estimate based on your individual needs. With factors such as the type of boiler you require for your central heating system taken into consideration, you can budget for the project and compare quotes with ease.
Knowing the costs ahead of receiving quotes from vetted local installers means you can be certain you're paying a decent price and receiving a quality service at the same time.
