15/05/2026
Why homeowners should worry about under-insurance..
Under‑insurance is now one of the biggest risks facing UK homeowners — and most don’t realise they’re affected until they make a claim.
With rebuild costs rising sharply, many homes are no longer insured for what it would actually cost to repair or rebuild them. And when that happens, insurers apply the average clause, resulting in reducing payouts in line with how under‑insured the property is.
What this means in real terms:
• A 25% shortfall in cover = a 25% reduction in any claim
• Renovations and extensions often push rebuild costs higher
• Market value and rebuild value are not the same
• Storm, flood and escape‑of‑water claims are increasing
• Mortgage lenders expect accurate sums insured
Even small claims can be significantly reduced if the property is under‑insured.
At Fairweather Insurance, we help homeowners check their rebuild value, avoid gaps in cover, and stay fully protected.
👉 If you haven’t reviewed your home insurance recently, now is the time