New Boiler Cost & Installation Prices
Understanding the cost of a new boiler is one of the first steps when planning a replacement.
Across Buckinghamshire, Berkshire and surrounding areas, a new boiler installation typically ranges from £2,000 to £4,500+, depending on property size, boiler type and installation requirements.
We provide clear, fixed quotations following a full home survey, so you know exactly what is included. There are no hidden extras!
Request a free boiler quote today
How Much Is a New Boiler?
For example, replacing a combi boiler in the same location is usually more straightforward than converting from a system boiler to a combi, which may involve alterations to pipework and removal of a cylinder. Larger homes with multiple bathrooms typically require higher output boilers, which also affects overall cost.
As a guide, most professionally installed boilers fall within the ranges outlined below.
Example New Boiler Costs by Property Size
Smaller Properties & Flats
(1-2 Bedrooms / Flats)
A combi boiler installation in a smaller property typically starts from around £2,200, with most installations falling between £2,200 and £3000.
These systems are well suited to flats and smaller terraced homes with one bathroom, where a compact boiler can provide heating and hot water directly from the mains without the need for a cylinder.
Medium Sized Homes
(3-4 Bedrooms)
For a typical three or four bedroom home, new boiler costs generally range from £2,500 to £3,500.
Depending on hot water demand and system layout, this may involve a larger combi boiler or a system boiler working alongside a hot water cylinder. Correct sizing is important to ensure efficient operation and long-term reliability.
Larger or High Demand Properties
In larger properties or homes with multiple bathrooms, installation costs commonly range from £3,500 to £4,500+.
These installations may require higher output boilers, upgraded controls, or modifications to existing pipework. In some cases, a regular or system boiler is more appropriate to ensure consistent hot water supply.
All figures above are guide prices. A fixed quotation is always provided following survey.
Combi Boiler Cost
A combi boiler is the most common type of replacement in the UK. For a straightforward like-for-like installation, a combi boiler cost typically falls between £2,200 and £3,500, depending on the brand, output size and warranty selected.
Combi boilers are popular because they are compact, energy efficient and eliminate the need for a separate hot water cylinder. However, they are not always the right solution for larger homes. This is why proper system assessment is essential before installation.
Boiler Replacement Cost
When replacing an existing boiler in the same position, installation is usually simpler and more cost effective. In these cases, a boiler replacement cost may start from around £2,200 for a standard combi swap.
Costs increase if the boiler is being relocated, if a conversion is required, or if the heating system needs updating to meet manufacturer requirements. We explain any recommended upgrades clearly so you understand both the reason and the benefit.
What Is Included in a New Boiler Installation?
When comparing the cost of a new boiler, it is important to understand what is included in the price. Our professional boiler installations typically include:
- A professional home survey and system assessment
- Correct boiler sizing and system design
- Boiler supply and installation
- Standard flue and fittings
- Commissioning and safety checks
- Warranty registration with the manufacturer
- Gas Safe certification
We focus on installing boilers correctly rather than simply installing them quickly. That difference matters when it comes to long-term performance and warranty protection.
Why Our Boiler Costs Reflect Long-Term Value
Heppelthwaite – The Red Van Plumbers offer competitive pricing backed by experience, accreditation and long-term support.
Customers choose us because they receive expert system design, honest advice and installation by Platinum accredited engineers for leading manufacturers. We provide access to extended product warranties, dedicated aftercare services and flexible boiler finance options.
As a company established in 1948, we are plumbing, heating and renewable energy specialists – not just boiler installers. That wider expertise ensures your heating system is designed properly from the start.
Is It Worth Replacing an Older Boiler?
Modern A-rated boilers are significantly more efficient than older systems. Replacing an ageing boiler can improve heating performance, increase reliability and potentially reduce energy waste. If your current boiler is over 10 to 15 years old or experiencing repeated faults, a replacement may prove more cost effective over time than ongoing repairs.
Request a free boiler quote today
0% BOILER FINANCE
Spread the Cost of a New Boiler
We offer 0% boiler finance with fixed monthly payments over 6 to 48 months, subject to status and approval. This allows you to upgrade your heating system without a large upfront payment.
Full details can be found on our Boiler Finance page.
New Boiler Cost FAQs
We provide professional boiler installation and heating services across Buckinghamshire, Berkshire, West London, Oxfordshire and surrounding counties. Here are some frequently asked questions about our boiler installation costs.
How much does a new boiler cost for homes across Bucks, Berks and London area?
Most new boiler installations range from £2,200 to £4,500+ depending on property size, boiler type and installation requirements.
What is the average cost of a combi boiler installation?
Why are some boiler quotes much cheaper?
Are you Gas Safe registered boiler installers?
Yes. All our engineers are Gas Safe registered and fully qualified to install gas boilers safely.
Do you offer finance for boiler installations?
Yes. Flexible finance options are available. Full details can be found on our Boiler Finance page.
Do you provide fixed quotations?
Yes. We carry out a survey and provide a clear, fixed quotation with no hidden charges.
A Trusted Family-Run Plumbing and Heating Company Since 1948
We are a family run plumbing and heating company established in 1948. Homeowners and businesses across Buckinghamshire, Berkshire and West London choose us for reliable workmanship, honest advice and a professional approach. >Learn more about our company and award winning team.
✔ Family run business established in 1948
✔ Gas Engineers who live and work locally
✔ Clear advice and costs before work begins
✔ Payment only once the job is complete
All contact with Red Van plumbers has been a pleasure everyone I have spoken to were extremely helpful and pleasant and the engineers all did a great job without any mess, thank you very much.
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We have been using the Red Van Plumbers for more years than either of us can remember. Always the same reliable service, prompt attention to detail and most courteous of operatives at a sensible price. Highly recommended yet again.
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Speak to Our Installation Team
If you would like an accurate quotation tailored to your property, speak to our experienced installation team today.
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The Red Van Plumbers are one of the most established plumbing and heating companies in South East England. Established 1948