Is Boiler Cover Worth It?
TLDR
For most homeowners, boiler cover does not appear to be the cheapest option over several years. Which? found paying for an annual service and repairs when needed usually costs less. Boiler cover still has value if you prefer predictable monthly payments, have little emergency savings or simply want one number to call when the heating dies.
Spoiler
If you are asking purely:
“Which option is likely to cost me less?”
Paying for servicing and repairs yourself usually wins.
If you are asking:
“Which option means I don’t have to worry about a surprise repair bill?”
Boiler cover starts making more sense.
The short answer
Which?’s September 2025 research concluded that boiler cover was rarely the cheapest approach. Its survey of 10,064 homeowners found average boiler cover cost £183 a year. A one off annual service averaged £79, and the average repair following a service was £156. Cover therefore works more like protection against unpredictable bills than a guaranteed way of saving money.
What you need to know
- Which? found pay as you go servicing and repairs usually worked out cheaper over time.
- Boiler cover often includes an annual service, but not every policy does.
- Many policies charge an excess for each new repair.
- Pre existing faults, sludge, scale and system upgrades are common areas to check in the exclusions.
- Your home insurance might already include, or offer cheaply, home emergency cover. Check before paying twice.
Fun fact
Using Which?’s 2025 averages, five years of boiler cover at £183 a year comes to £915.
Five annual services at £79 come to £395.
That leaves £520 for repairs before the pay as you go route reaches the same theoretical cost.
Obviously real life refuses to behave this neatly. Premiums rise, boilers break and some years nothing happens at all. But the comparison explains why Which? keeps reaching the same conclusion.
What does boiler cover actually do?
Boiler cover normally means paying a monthly or annual premium so a provider deals with certain repairs if your boiler breaks down.
Depending on the policy, you might get:
- Boiler repairs
- Parts and labour
- An annual boiler service
- Central heating repairs
- Radiator cover
- Controls
- Emergency attendance
- Replacement or a contribution towards replacement if the boiler is beyond repair
That last bit needs reading carefully.
“Boiler replacement included” sounds lovely.
The small print might have opinions about boiler age, installation costs, maximum claim values and eligibility.
HomeServe, for example, says its cover can provide a replacement boiler where the existing appliance is beyond repair, but installation costs are treated differently once the boiler reaches seven years old under certain policies.
Read the policy.
The headline sells the product.
The terms tell you what you bought.
Is boiler cover cheaper than paying for repairs yourself?
Usually, no.
That is the interesting part.
Which? surveyed more than 10,000 homeowners in June 2025 and concluded that paying for services and repairs when required was generally cheaper over several years than buying boiler cover.
Their figures were:
CostWhich? 2025 averageBoiler cover£183 per yearOne off annual service£79One off repair following a service£156
One year where your boiler develops an expensive fault might make the policy look brilliant.
Three years where the boiler behaves perfectly make the same monthly payment look less impressive.
Insurance works like insurance.
You are paying somebody else to carry some of the financial risk.
What about the excess?
This catches people.
Your monthly premium is not always the whole cost.
Some policies charge an excess for every new repair.
British Gas currently offers excess options including £0, £60 and £99. With a £60 excess, £60 is charged for each completed new repair. A fault found during the annual service may also trigger the repair excess.
So do not compare:
£15 monthly cover
against:
£200 repair bill.
Compare the entire cost:
Annual premium
plus excess
plus anything excluded from the policy.
That gives you the real number.
Why does the first year sometimes look so cheap?
Because companies would quite like you to sign up.
Shocking development.
Introductory pricing is common.
Which? warns specifically about cheap first year offers followed by substantially higher renewal prices. Its 2025 research found examples where year two pricing rose sharply after the introductory period.
When comparing plans, ask:
“What will this cost after the introductory deal finishes?”
A £7 monthly price written in enormous letters tells you considerably less than the renewal notice arriving twelve months later.
When does boiler cover make sense?
There are households where I completely understand buying it.
You do not have much emergency savings
An unexpected boiler repair might cause genuine financial stress.
A monthly payment gives you more predictable costs.
You might pay more over several years, but removing the possibility of one large surprise bill has value.
You value convenience
Boiler dies.
You call one number.
Provider sends somebody.
You do not spend Tuesday morning Googling heating engineers while wearing three jumpers.
That convenience is part of what you are paying for.
Your boiler is getting older
An older appliance has a greater chance of needing repairs.
This does not automatically make cover good value because policies often become more restrictive around older boilers.
Check:
- Age limits
- Parts availability rules
- Repair limits
- Replacement conditions
- Whether the provider will continue covering the boiler
Which? found some policies restrict new customers with boilers around 15 years old or impose limits on repair costs.
You simply hate financial surprises
Fair enough.
Not every financial decision has to achieve mathematical perfection.
Some people would rather knowingly spend £20 every month than suddenly spend several hundred pounds in January.
Peace of mind has value.
You decide how much.
When would I question paying for boiler cover?
Your boiler is new and already under manufacturer guarantee
This is the first thing I would check.
Worcester Bosch requires annual servicing to maintain its manufacturer guarantee. Vaillant has the same annual servicing requirement and says the boiler guarantee covers boiler component failures, subject to its terms.
If your new boiler already has a long manufacturer guarantee, paying for another policy covering many of the same boiler components deserves some thought.
You still need the annual service.
You might not need overlapping breakdown protection.
You already have home emergency cover
Check your home insurance.
MoneyHelper says home insurance policies often offer emergency repair protection, including boiler breakdown, as an optional extra.
Which? makes the same point and recommends checking whether you already have protection before buying standalone boiler cover.
Paying two companies to insure the same problem is an impressive level of preparedness.
Financially, less impressive.
You have a decent emergency fund
Suppose you are comfortable keeping money aside specifically for:
- Boiler servicing
- Plumbing repairs
- Heating repairs
- Eventually replacing the boiler
That gives you another option.
Instead of paying the insurer each month, pay yourself.
Which? explicitly suggests ringfencing monthly savings as an alternative to boiler cover.
The major difference?
If the boiler behaves itself, the money stays yours.
What normally catches people out in the small print?
This is where I would spend my time before buying cover.
Pre existing faults
British Gas excludes pre existing and design faults from its current HomeCare cover. It also has a 14 day no claim period for new policies.
So buying cover after the boiler starts leaking and immediately phoning them is unlikely to be the masterstroke it initially appears.
Sludge and scale
System contamination is a big one.
HomeServe terms exclude removing or cleaning sludge, scale, rust and other chemicals from heating system water on some policies.
Worcester Bosch’s manufacturer guarantee also excludes damage resulting from scale, sludge and blockages.
Dirty system water does not become somebody else’s problem simply because you own an insurance policy.
Boiler replacement conditions
Some policies advertise replacement cover.
Check:
- How old the boiler must be
- Whether installation is included
- Who decides the boiler is beyond economic repair
- Whether there is a cash alternative
- Whether upgrades are included
HomeServe’s policy documents, for example, treat installation costs differently once a boiler is seven years old.
Claim limits
Some policies have unlimited repairs.
Others cap the value.
Which? found policies ranging from limits around £1,500 a year to unlimited repair costs.
Annual servicing
Never assume the cheapest plan includes one.
And if your boiler remains under manufacturer guarantee, make sure servicing happens within the manufacturer requirements.
Worcester Bosch and Vaillant both require annual servicing to maintain their guarantees.
Boiler cover versus putting money aside
For many households, this is the comparison worth making.
Say you create a separate heating fund.
Every month you add money.
That pot pays for:
- Annual servicing
- Boiler repairs
- Radiator faults
- Controls
- Eventually replacement
If nothing goes wrong, you still have the money.
If something does go wrong, you have deliberately created the fund for exactly that reason.
The obvious downside is discipline.
A boiler fund containing £800 works brilliantly.
A boiler fund containing £14 because the rest somehow became a new television works less well.
Common mistakes
Buying cover without checking the manufacturer guarantee
New boiler?
Find your paperwork first.
You might already have years of manufacturer protection.
Looking only at the monthly price
Check the annual cost.
Then add the excess.
Then check year two.
Much more useful number.
Assuming “central heating cover” means everything heating related
Read what is included.
Cylinders, underfloor heating, sludge removal, pumps outside the boiler and other components might sit outside specific policies.
Forgetting home insurance
Check whether home emergency protection already exists.
Duplicate cover is still duplicate cover even if the second company has a nicer advert.
Thinking boiler cover replaces maintenance
No.
Annual servicing still matters.
System water condition still matters.
Ignoring a leaking radiator valve for eleven months because you have insurance is not a maintenance strategy.
What I would recommend
If you asked me standing in your kitchen whether boiler cover was worth buying, I would start with four questions.
How old is your boiler?
Is it still under guarantee?
What does your home insurance already cover?
Could you comfortably pay for a repair tomorrow?
If the boiler is newer, properly serviced, still under a strong manufacturer guarantee and you have money put aside, standalone boiler cover looks difficult to justify purely on cost.
If the boiler is older, you have no repair fund and a £400 surprise bill would create a serious problem, predictable monthly cover starts looking more useful.
Then read the exclusions.
All of them.
The question is not:
“Is boiler cover good?”
The better question is:
“What financial problem am I trying to solve?”
Prefer to service your boiler and pay for repairs when needed?
Kesselmann Heating & Plumbing provides boiler servicing and boiler repair across Weston super Mare and surrounding North Somerset.
If you prefer maintaining the boiler properly and dealing with faults individually rather than paying for a national cover plan, those services are available locally.
Kesselmann’s boiler repair service covers Weston super Mare, Worle, Clevedon, Portishead, Nailsea, Burnham on Sea and surrounding North Somerset.
Need a Gas Safe engineer in Weston-super-Mare?
Frequently asked questions
Is boiler cover a waste of money?
Not automatically. Which? found it usually costs more over several years than paying for servicing and repairs yourself. Some homeowners still value the predictable monthly cost, emergency access and convenience enough to pay the difference.
How much does boiler cover cost?
Which?'s 2025 homeowner survey found an average annual cost of £183, although actual premiums vary widely based on provider, level of protection and excess. Some current provider policies also use discounted first year pricing.
Does boiler cover include an annual service?
Often, but not always. British Gas HomeCare currently includes an annual service. Which? warns that cheaper policies do not always include servicing, so check before comparing prices.
Do I need boiler cover if my boiler is under warranty?
Possibly not for the boiler itself. Manufacturer guarantees from firms such as Worcester Bosch and Vaillant already cover qualifying component failures, subject to their terms. Annual servicing remains necessary to keep those guarantees valid.
Does home insurance cover boiler breakdowns?
Standard home insurance does not always cover mechanical boiler failure. Home emergency cover is often available as an optional extra and might already form part of your policy. Check before taking out another plan.
Is boiler cover better for an old boiler?
Possibly, because repair risk increases as equipment ages. Older boilers also face more policy restrictions around eligibility, replacement and parts availability. Read the terms before assuming an old appliance receives unlimited protection.
