Most homeowners looking up the cost of a new boiler are really trying to answer two questions:
“What’s a normal installed price?” and “What will it cost for my home?”
In our area, a typical installation often falls between £1,680 and £4,500 depending on boiler type, home size and the work required.
Use the tool below for an instant fixed-price quote from local Gas Safe engineers.
Fixed-price quotesLocal Gas Safe engineersNo subcontractorsClear scope upfront
What “new boiler cost” really includes
When people search for new boiler prices online, they often see a boiler unit price and assume that’s the full bill.
In reality, the installed cost typically includes the boiler, labour, flue components, controls (where required),
system protection (like a filter) and safe removal of the old appliance.
That’s why comparing quotes works best when you compare the installation scope as well as the price.
A “cheap” quote can quickly rise if key items are added later.
Installed price (what matters)
A fixed figure that includes supply + labour + the bits that make the installation compliant and reliable.
“From £X” pricing
Often a headline for the simplest scenario. Real homes usually need extra work that changes the final cost.
Replacement vs conversion
The biggest price difference is whether you’re doing a like-for-like boiler replacement or changing system type.
Conversions (for example, moving to a combi) can require additional pipework, changes to hot water arrangements, and more time on site.
Replacement (same type)
Usually the most cost-effective route when the system layout stays broadly the same.
Conversion (change type)
More involved work. Best when it solves a real problem (space, performance, or ongoing reliability).
For homes in Surrey and Hampshire, most installations land inside the £1,800–£4,500 range.
Below is a useful starting point — your exact figure depends on property size, hot water demand and the work required for your setup.
System boiler replacement
from £2,350
Often suits homes with a cylinder. Price rises with upgrades, flue changes or system work.
Heat-only boiler replacement
from £1,680
Common in older properties. Costs vary depending on controls and system condition.
Combi boiler replacement
from £2,150
Most popular choice. Size and hot water needs are the biggest price drivers.
Full conversion (e.g. regular → combi)
£3,000–£4,500+
More labour and pipework. Best priced by tool/engineer after a few quick questions.
What’s usually included: boiler supply, professional installation, flue components where required,
system protection (e.g. filter where applicable), removal of the old boiler and Gas Safe certification.
Your quote will show the scope clearly before you book.
What affects the final price
Two homes can choose the same boiler and still receive different prices — because installation complexity changes the work.
Here are the most common cost drivers we see day-to-day:
Boiler size & hot water demand
Larger homes and higher demand require higher-output models and sometimes additional system tweaks.
Flue route and location
A simple, short flue is faster. Relocations or more complex terminations add labour/materials.
System condition (sludge / corrosion)
Protection and cleaning recommendations vary based on system health and age.
Controls & efficiency upgrades
Modern controls can improve comfort and efficiency. The right setup depends on your home.
Pipework changes
Older installations sometimes need pipe upgrades or reroutes to meet modern standards.
Warranty level
Longer warranties can require specific filters/controls and accredited installation standards.
Why local pricing is more predictable
A big reason boiler quotes feel confusing is that national providers often start with a headline figure and then adjust as the job is scoped.
We prefer a clear, upfront approach: local engineers, local housing stock knowledge, and a fixed scope shown before booking.
Surrey & Hampshire housing patterns
We regularly work on a mix of older heating layouts and newer combi setups — and we price accordingly.
Aftercare from the same team
If you need support after installation, you’re dealing with the same local engineers who fitted the boiler.
Get your fixed-price quote in seconds
Answer a few quick questions and you’ll see your exact installed price instantly — matched to your property and requirements.
Tip: If your boiler has failed today, a one-off repair can be the fastest route to restore heating/hot water.
Cover and servicing are best added once the system is stable.
Most installed jobs in our area are commonly within £1,680–£4,500, depending on boiler type and complexity.
Is installation included in the price?
For a proper quote, yes — the installed price should include labour and the components needed for a compliant fit.
Are there hidden costs?
They usually appear when scope isn’t clear (extras added later). Fixed-price quotes reduce surprises.
How long does installation take?
Many replacements are completed in a day. Conversions or upgrades can take longer depending on the work required.
Can I spread the cost?
Finance options may be available on selected installations (subject to approval). Where available, it’s shown clearly.
What’s the best next step?
Use the instant quote tool for a fixed installed price, then book at a time that suits you.
Want an exact installed price?
If you’re comparing boiler installation costs, the quickest way to get certainty is a fixed quote matched to your property.
Start with the tool, then book when ready — with clear scope and local engineer support.
