British Gas is one of the most recognisable names in UK home heating — and for many homeowners, it’s the first port of call when a boiler needs replacing.
As a national company with a trusted brand, millions of households turn to them every year. But brand recognition comes at a price, and it’s worth understanding exactly what you’re paying for before committing to your new gas boiler installation.
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British Gas installs boilers from several leading manufacturers including Worcester Bosch, Vaillant, Glow Worm, and Viessmann.
Their pricing varies depending on the boiler type, your property size, and whether you get an online estimate or a full home survey.
British Gas New Boiler Cost 2026
For a like-for-like combi swap — the most common job — British Gas quotes for a Worcester Bosch Greenstar combi typically come in at £2,578 via their online tool or £2,964 following a home survey.
That price gap between online and surveyed quotes is worth noting: the online figure is an estimate, and the surveyed figure is what most customers actually pay.
What’s Included in a British Gas Installation?
British Gas installations include a reasonably comprehensive package as standard, which partly accounts for the higher price point.
What British Gas Typically Includes
It’s worth reviewing your specific quote carefully. What appears in an online estimate and what is included on a surveyed quote can differ, and extras such as magnetic filters, TRV upgrades, or pipework replacement are often added following the home visit.
What Are British Gas’s Additional Charges?
Beyond the base installation, British Gas charges separately for work that goes beyond a straightforward swap. These are where costs can escalate quickly.
British Gas Additional Costs — 2026
A back boiler removal combined with a new combi installation is one of the most common complex jobs — and at British Gas rates, the combined bill can reach £5,000–£8,500, depending on pipework condition and location.
What Do British Gas Customers Say?
Trustpilot is one of the UK’s most widely used independent review platforms, giving customers the opportunity to rate their genuine experience. British Gas currently holds a Trustpilot rating of 3.6 out of 5 — reflecting a mixed customer experience at scale.
For a company of their size, negative reviews tend to centre on engineer availability, post-installation support, and price transparency rather than the quality of the installation itself.
Can You Finance a New Boiler with British Gas?
British Gas offers 0% APR finance for up to 3 years, which is a useful option for homeowners who prefer to spread the cost.
However, it is worth factoring in that the higher base price means monthly payments are still greater than boiler finance for the same boiler through a lower-cost installer, even at 0%.
British Gas Finance — Quick Overview
How Does British Gas Compare to a Local Independent?
British Gas is a legitimate, professional option — but detailed analysis by boiler comparison site New-Boiler-Cost.com consistently shows their prices can be up to 40% more expensive than independent specialists for an equivalent installation.
That premium is largely explained by national overheads: call centre operations, engineer dispatch logistics, marketing spend, and brand premium all feed into the final price.
Here at Clever Energy Boilers, we’ve been installing boilers across Yorkshire and the North of England since 2008, with over 5,000 satisfied customers and a Trustpilot rating of 4.1 out of 5.
Every one of our engineers is Gas Safe registered and a central heating specialist. We install the same leading brands — including Worcester Bosch and Ideal — and offer a 10-year warranty as standard, compared to the 5-year standard warranty offered by British Gas. Based on a like-for-like Worcester Bosch combi swap, our customers typically save around £844 compared to a British Gas online quote.
We also offer flexible finance options to help spread the cost — including 12 months Buy Now Pay Later and monthly payment plans — so there’s no need to compromise on quality to manage the upfront cost.
If you’re considering a new boiler, we’d always recommend getting at least two or three quotes. We’re confident ours will give you the best combination of price, warranty, and service. Get in touch today and one of our expert surveyors will visit your home, answer your questions, and give you a clear, honest quote with no surprises.
