Boiler guides
Everything worth knowing before you buy a boiler
Real prices from our own catalogue, real warranty terms from our manufacturer research, and honest sizing advice — written by the people who fit them.
Costs & prices
5 min read
How much does a new boiler cost in 2026?
Real fitted prices from our own catalogue, what changes the figure, and what a supply-only boiler pack costs if you have your own installer.
4 min read
What a boiler service costs — and why it protects your warranty
What a proper annual service includes, what it typically costs, and why skipping it can void the manufacturer warranty you paid for.
5 min read
Boiler replacement cost: like-for-like vs converting
What a straight swap costs versus converting system to combi, and the signs that replacement beats another repair.
5 min read
Combi boiler prices in the UK: supply-only and fitted
What combi boilers actually cost — hardware-only pack prices, fitted prices, and why the cheapest boiler is not always the cheapest job.
4 min read
Boiler installation cost: what the labour actually covers
The difference between the boiler price and the installed price, what a proper installation includes, and what a combi installation costs.
4 min read
Boiler finance and paying for a new boiler
The honest options for spreading the cost of a new boiler, what cheap installation offers really mean, and how our deposit works.
Choosing a boiler
4 min read
How long does a boiler last?
The realistic lifespan of a modern condensing boiler, what shortens it, and how servicing and warranty length tell you what the manufacturer really expects.
5 min read
30kW combi boilers: who they suit and what they cost
The 30kW band is the UK's most popular combi size. Which homes it suits, the models worth shortlisting, and fitted prices.
5 min read
Combi vs system vs heat-only boilers, explained plainly
The three boiler types, what a conventional (heat-only) boiler actually is, and which one your home probably needs.
5 min read
The best boiler brands in the UK — and how to judge them
How the ten brands we stock actually compare on warranty, parts and reliability — and what 'brands to avoid' lists get wrong.
4 min read
LPG combi boilers: options for homes off the gas grid
What changes when your home runs on bottled or tanked LPG instead of mains gas — models, costs and the conversion question.
4 min read
Back boiler replacement: your options explained
Still got a back boiler behind the fire? What replacing one involves, what it converts to, and what it costs.
5 min read
The best combi boilers of 2026: an installer's shortlist
Our shortlist across the ten brands we stock — judged on warranty, value and parts support, not marketing.
4 min read
Worcester Bosch vs Vaillant: the honest comparison
The two premium German-engineered brands compared on warranty, price and range — from someone who fits both.
4 min read
What size boiler do I need? A plain-English sizing guide
Boiler sizing by bedrooms, bathrooms and radiators — for 2-bed flats, 3-bed semis and 4-bed houses, without the jargon.
Warranties
4 min read
Ideal boiler warranty: what each range actually covers
Ideal's warranty terms by range — Logic Max 10 years, Vogue Max up to 12, Logic+ 7 — and the conditions that keep them valid.
4 min read
Vaillant warranty explained — including Glow-worm
Vaillant's warranty terms by range — ecoTEC plus up to 10 years, ecoFIT pure up to 10, ecoTEC pro up to 7 — plus Glow-worm, its sister brand.
4 min read
Worcester Bosch warranty: what each Greenstar range covers
Greenstar warranty terms by range — from the 1000's 5 years to the 8000+'s 12 — and the filter, registration and servicing conditions attached.
4 min read
Baxi boiler warranty: the 400, 600 and 800 compared
Baxi's warranty ladder — 400 series to 5 years, 600 to 7, 800 to 10 — and why registration matters more with Baxi than most.
5 min read
Boiler warranties explained: standard, extended and the small print
What a boiler warranty actually is, how 10-year cover really works, and the three conditions that decide whether yours pays out.