By 
£5 to £30
Typical UK monthly cover premium
£50 to £99
Typical excess per claim
14 to 30 days
Initial no-claims period
~£300
Average out-of-pocket repair if uninsured
Indicative UK market ranges, May 2026. Always read the policy schedule before signing.
The standard UK pitch for boiler cover is simple: pay £5 to £10 a month, sleep easier in winter. The standard pitch is also incomplete. It hides two things that matter.
First, cover is not a free option, it is a bet. You are paying a premium today against an uncertain future repair. The bet pays off if your boiler breaks at least once every couple of years, and the repair would have cost more than your annual premium. Otherwise, you are subsidising someone else's breakdown.
Second, the exclusions list is doing most of the work. "Sludge damage", "pre-existing faults" and "no service record" are the three reasons claims get refused most often in the UK. They appear in every policy. They are also exactly the reasons older boilers actually break down. Read this guide, run the calculator, and decide on numbers, not on the brochure.
Is boiler cover worth it for your boiler?
Move the sliders. We work out how often the boiler has to break down before cover pays for itself.
Break-even point
Maths verified May 2026. The model assumes a Gas Safe engineer repair with parts. Excludes any new-boiler payout (cover almost never pays for replacement).
Where standard advice fails
Why most boiler-cover articles miss the point
Most UK guides compare brand A's policy with brand B's, list features, and stop there. That is product reviewing, not advice. It tells you which provider is cheapest given that you have already decided to buy cover. It does not tell you whether you should buy any cover at all.
The decision that actually matters is the bet, not the brand. A £10/month policy costs you £120 a year. The typical Gas Safe repair you might claim against is around £300. So the policy is worth it if you would otherwise be paying for a repair more often than once every two-and-a-half years, and if the policy will actually pay out when you claim.
That second condition is the trap. UK boiler cover is famous for refusing claims on three grounds: sludge damage, pre-existing faults and no proof of service. Those are not edge cases, they are the most common ways an older UK boiler actually fails. The marketing rarely shows them.
So the real question is not "which provider is cheapest?". It is "given my boiler's age, my service record and my excess, does the bet pay off?". The calculator above answers that. The next sections show you what the bet is actually for.
The four tiers, decoded
What each tier of UK boiler cover actually buys you
Every UK provider sells roughly the same four shapes of cover. The price changes. The exclusions barely do.
Boiler only
£5 to £10 / month
Covers: Parts + labour on the boiler only.
Watch out: Excludes heating system, radiators and controls. Cheap until the fault is anywhere else.
Boiler + central heating
£10 to £18 / month
Covers: Boiler + radiators + pipework + hot water cylinder if you have one.
Watch out: Often excludes "sludge damage", the most common cause of pump failure in older UK systems.
Home emergency
£15 to £25 / month
Covers: Boiler + heating + plumbing + electrics + sometimes pest control.
Watch out: Looks comprehensive. Read the per-claim cap, sometimes £1,000 total for the year.
No-excess premium plan
£20 to £30 / month
Covers: Same as above but no £50 to £99 excess on each claim.
Watch out: Only worth it if you expect more than one claim a year and the per-claim cap is realistic.
Insider insight
The six exclusions that quietly do most of the work
Every UK boiler-cover policy carries the same shortlist of exclusions. Read them before you sign, they are the difference between cover that pays out and cover that does not.
Pre-existing faults
Anything wrong with the boiler before you took the policy out, even if you did not know about it.
Sludge and limescale damage
The single most common reason a UK boiler claim is denied. Older systems are full of sludge.
Boilers over 7 to 10 years old
Some providers refuse to insure them at all. Others insure them but cap the payout.
No proof of annual service
Missed a year? The claim can be voided. Same paperwork as the manufacturer warranty.
Initial no-claims period
Usually 14 to 30 days. You cannot take cover out the day the boiler dies and claim straight away.
Per-claim and per-year caps
Often £1,000 to £2,000 per year. A new boiler is not covered, only repairs.
Who actually needs it
Homeowners, tenants and landlords: who actually pays?
Homeowners
You own the boiler so you own the bill. Run the calculator first. Newer boilers + recent service record = self-insure is usually cheaper. Older boilers + hard-water area = cover usually wins.
Tenants
You do not need boiler cover. Under the Gas Safety (Installation and Use) Regulations 1998, the landlord is legally responsible for keeping the boiler safe and working. Ask for a copy of the CP12 if you have not received one.
Landlords
A landlord-specific plan that includes the annual CP12 is usually cheaper than buying the safety check and a homeowner cover policy separately. See the landlord cover guide for the legal duties.
Decide on the maths, not the marketing
How to actually pick (or skip) boiler cover
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1
Run the calculator first.
Plug in your boiler age, a realistic premium and an honest repair cost. If the break-even is more than three years apart, you almost certainly do not need cover.
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2
Match the tier to the failure mode.
Combi boiler in a flat? Boiler-only is enough. Old radiators in a hard-water area? Tier 2 (boiler + heating) catches the more common faults.
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3
Read the exclusions before the features.
Look up "sludge", "pre-existing", "service record", "boiler age". Those four lines decide whether the cover ever pays out.
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4
Check the per-claim and per-year caps.
A £1,000-per-year cap is fine for one repair, useless for a year with three breakdowns. Premium plans give £2,500+.
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5
Confirm the provider is FCA-authorised.
Insurance contracts are FCA-regulated; "service plans" are not. The FCA register is at register.fca.org.uk.
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6
Keep your service record up to date.
A missed annual service is the single most common reason a claim is refused. Book one, see the boiler service guide.
Boiler cover FAQ
Boiler cover questions UK households actually ask
In the UK, the two terms are used interchangeably. Both pay for a Gas Safe engineer, parts and labour when the boiler breaks down. The technical difference is regulatory, "insurance" is FCA-regulated, "service plans" are not, but the experience for the customer is the same. Always check whether the provider is FCA-authorised.
For boiler-only cover with a £50 excess, expect £5 to £10 a month. Boiler + central heating runs £10 to £18. Premium home-emergency plans go to £25 a month. Above that you are paying for a brand name. The calculator further up the page tells you whether the premium pays back in your specific case.
Usually not. Most UK home insurance policies treat the boiler as part of the building, so they cover accidental damage (a tree falling on the flue) but not breakdown (a worn-out pump). Read the "exclusions" section before you double-buy.
No. Under the Gas Safety (Installation and Use) Regulations 1998 the landlord is responsible for the safety and maintenance of the boiler, see the landlord cover guide. Tenants only need contents insurance for their own belongings.
Almost never. Standard cover pays for repairs, not replacement. A few premium tiers offer a contribution towards a new boiler after a certain age, read the wording. If your boiler is over 12 years old, the Energy Company Obligation (ECO) scheme is a more realistic route to a free or subsidised replacement.
It is the 14 to 30 day window after you sign up during which you cannot claim. It exists to stop people taking out cover the day the boiler dies. Plan for it: take cover out before you need it, ideally as soon as the previous policy ends or just after a clean service.