Insurance coverage consultants warn that widespread DIY errors with electrical work, roofing, gutters, decking and plumbing might result in rejected claims price hundreds of kilos

Gutters must be sorted (Picture: Robin Gentry through Getty Photographs)
Spring has arrived – at the least nominally – and plenty of could also be considering duties they should undertake across the residence. Nonetheless, warning is suggested as sure oversights might end in your property not being coated if one thing goes awry, and in case your insurer declines to pay out, it could actually show extraordinarily pricey.
House insurance coverage specialist Matthew Harwood from Confused.com has recognized 5 DIY duties that he warns might invalidate your insurance coverage and doubtlessly price you hundreds.
Matthew highlighted that water escape is probably the most frequent residence insurance coverage declare within the UK; between 2021 and 2024, there have been 24,102 water escape claims, with a median declare price of £6,786 and complete payouts amounting to £163.6 million.
This situation is usually triggered by broken pipework or deteriorated sealant and if the sealant is not reapplied correctly, it could actually enable water to infiltrate partitions, flooring, and ceilings, leading to leaks and hid structural harm.
Potential prices you may incur in case your insurer refuses to pay:
Usually inspecting home equipment for leaks, sustaining the sealant round baths and showers in good situation and insulating uncovered pipes forward of the colder months can all assist avert issues earlier than they come up.
Gutters
In case your gutters are blocked or have been inadequately repaired following harm, it could actually result in rainwater overflowing. The water cascading down exterior partitions may end up in penetrating damp, ruined insulation and mildew development inside the home.
Most insurance coverage firms state that sustaining guttering is the house owner’s duty, so claims associated to poorly maintained gutters can usually be rejected – but when damp seeps deep into the constructing construction, prices might collectively attain as a lot as £10,000.
Potential prices you may encounter in case your insurer refuses to pay:
- Damp proof remedy: £500 to £2,000+
- Changing broken insulation: £500 to £1,500
- Replastering damp partitions: £300 to £1,200 per room
- Brickwork repairs and repointing: £1,500 to £4,000 for complete home
Easy measures like clearing gutters when dangerous climate is predicted can assist safeguard properties from costly harm.
Decking
When you’re envisioning new decking for a spring backyard makeover, it is advisable to hunt knowledgeable recommendation. When put in incorrectly, decking can lure water in opposition to the home or stop it from draining away, inflicting long-term harm.
You can even create points by strain washing present decking; it could actually exacerbate water harm, and even hurt brickwork and masonry with the power of the water.
Potential prices you may encounter in case your insurer refuses to pay:
- Eradicating unsafe decking: £500 – £2,000
- Fixing damp brought on by trapped moisture: £2,000 – £8,000 relying on the dimensions of the issue
- Extreme damp penetration resulting in basis points: as a lot as £10,000 – £15,000
- Repairing broken brickwork after strain washing issues: £1,500 – £4,000
Electrical
Electrical issues could be a number of the costliest DIY blunders a home-owner could make. When you’re uncertain of what you are doing, incorrect wiring – whether or not that is repairing a plug socket or putting in lights within the backyard – might result in electrical faults which may end up in overheating and even fires.
Confused.com said its knowledge revealed that fireplace was one of the crucial costly residence insurance coverage claims, with a median payout of £22,046, so it may be pricey in case your insurer rejects your declare because of defective DIY wiring.
Potential prices you may encounter in case your insurer refuses to pay:
- Changing electrical system: £2,000 – £6,000
- Changing broken belongings and furnishings: £5,000+
- Hearth and smoke harm restore: might exceed £40,000, relying on the extent of the harm and what number of rooms are affected
Roofing
Winter situations can take their toll in your roof, with storms displacing roof tiles that had been already barely unfastened, prompting many to contemplate tackling repairs themselves as soon as spring arrives. Nonetheless, these repairs can create extra critical issues if they don’t seem to be carried out correctly.
From inflicting harm to adjoining tiles while accessing the roof, to compromising the waterproof membrane, or inadvertently obstructing air flow, errors that seem trivial can enable water penetration and end in leaks and damp.
Potential prices you may encounter in case your insurer refuses to pay:
- Repairing roof construction: £2,000 – £6,000
- Changing ceiling plasterboard and insulation: £1,500 – £4,000
- Damp and mildew remedy: £1,000 – £3,500
- Repairing water-damaged electrics: £1,000 – £3,000
Matthew stated: “Confused.com’s knowledge reveals that the common price of residence insurance coverage claims has risen considerably over the previous three years. Rising UK inflation, together with extra frequent extreme climate linked to local weather change, has pushed the rise in declare payouts.”
Resulting from these growing claims, insurers are scrutinising claims extra rigorously, and claims for harm ensuing from poor DIY, insufficient upkeep, or missed warning indicators of issues are ceaselessly rejected, he defined.
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Matthew added: “We all know many residents are hesitant to make a declare because of considerations about rising prices, which is why prevention and preparation are so essential. It is also important to ensure you’re coated for the correct amount, so you are not ignored of pocket in case you do want to assert.
“Our contents insurance coverage calculator can rapidly estimate how a lot cowl you want primarily based in your belongings, so you possibly can ensure you’re correctly protected and never overpaying. And in case you ever do want to assert, our information on methods to make a house insurance coverage declare explains every step, serving to you’re feeling assured about what to do subsequent.”














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