Your Home Insurance Exclusions Explained — The Ones That Actually Matter

Most contents policies exclude more than homeowners realise. The schedules are long, the language is technical, and the sections that matter most are rarely in the summary box. We've gone through the policy documents of 12 major UK insurers — Aviva, AXA, Direct Line, Admiral, Churchill, More Than, LV=, Hastings, Zurich, NFU Mutual, Legal & General, and Saga — and mapped the six exclusion categories that most frequently appear in Financial Ombudsman Service (FOS) complaint decisions.

1. Gradual Deterioration and Wear & Tear

Every policy we reviewed excludes damage caused by gradual deterioration. The challenge is that "gradual" is defined by the insurer, not by any standard. A roof that leaks after 15 years of normal weathering is almost always excluded. But so is a boiler that fails, a washing machine drum that cracks, or a bathroom sealant that lets in water over 18 months.

The FOS consistently upholds insurer decisions on this exclusion because the principle is established: insurance covers sudden, unforeseen events, not the accumulated cost of time. The practical implication is that a flood caused by a burst pipe (sudden) is covered, but water ingress from a slow deterioration of the pipe joint (gradual) is not. Adjusters are trained to distinguish these two narratives when they visit.

What this means for you: if a claim involves something that could be argued to have developed over time — damp, roof damage, subsidence — photograph the area in its current state and gather any maintenance records that show the deterioration was not present until recently. Without that evidence, the deterioration narrative wins.

2. Unattended High-Value Items

Contents policies typically define "unattended" in the small print, and the definition is stricter than most people assume. Aviva's standard contents policy, for example, states that portable items are not covered if left "out of sight" in a vehicle for any period. Direct Line uses a "continuously attended" standard that some adjusters interpret as needing line-of-sight at all times.

This matters most for laptops, cameras, and jewellery. A laptop left in a locked car for 20 minutes while you collect children from school is excluded under almost all standard policies without an explicit away-from-home extension. A camera bag left at a table in a café while you use the toilet has been denied by multiple insurers and upheld by the FOS.

The fix is simple but requires knowing the exclusion exists: add the portable valuables extension to your contents policy, or check whether your home policy specifies a named-items endorsement. Rehuman's gap detection flags this automatically if your sum insured for contents exceeds £5,000 without an away-from-home extension.

3. Unoccupied Property Clauses

Standard UK home insurance policies include an unoccupancy provision that suspends certain coverages — typically theft, vandalism, escape of water, and sometimes storm damage — after the property has been empty for 30 consecutive days. The threshold varies: it's 30 days at LV=, 60 days at NFU Mutual, and 45 days at Zurich.

This exclusion catches people during extended holidays, hospital stays, work placements abroad, and when a property is between tenants. The 2020–2022 period produced a spike in complaints when homeowners who had evacuated during flooding were denied further damage claims because the property had been unoccupied for more than 30 days post-evacuation.

If you're leaving a property empty for more than four weeks, contact your insurer in advance. Most will offer an unoccupied property extension for an additional premium. Not knowing the threshold and assuming coverage continues is the most expensive mistake we see.

4. Business Use at Home

Standard home insurance does not cover business property, business liability, or business interruption — even if the business is run entirely from home. The Churchill standard home policy specifically states that contents cover excludes "property used in connection with a business, trade, or profession."

For the 5.5 million people in the UK who work from home either full-time or part-time, this exclusion has real consequences. A graphic designer whose external monitor is stolen has no claim under standard contents cover. A therapist who sees clients at home and has a slip-and-fall incident is not covered under standard liability. A tutor whose laptop is damaged by a student is excluded.

The required additional product is a home business insurance policy or a home insurance add-on that specifies business equipment and business liability. Premiums for the add-on typically run £80–£180 per year. The alternative — assuming it's covered and finding out during a claim — is considerably more expensive.

5. Accidental Damage Scope Limitations

Accidental damage cover sounds comprehensive. It is not. Most standard policies include accidental damage for buildings (the structure) but not for contents unless explicitly added. When contents accidental damage is included, it typically excludes damage caused by pets, sports equipment use, DIY work, and items over a specified age.

More Than's accidental damage extension, for example, excludes damage to items more than five years old unless they appear on a named valuables schedule. AXA's accidental damage clause for electronics excludes damage caused by "electrical or mechanical breakdown" — a phrase that adjusters use to classify a broad range of damage that customers describe as accidental.

When comparing policies, the word "accidental damage" in the summary box means very little. What matters is the accidental damage definition in the policy wording, the exclusion list in that section, and whether contents are included at the same level as buildings. Read the policy wording, not the cover summary.

6. Flood Zone and High-Risk Property Exclusions

Since 2016, the Flood Re scheme has made flood cover available to most UK residential properties built before 2009. But Flood Re is a reinsurance mechanism, not a universal guarantee. Properties built after 2009, properties in Council Tax Band H, and some leasehold flats may not be eligible, and insurers are not required to disclose Flood Re participation status at the point of sale.

If your property has flooded before, or is in an area that has flooded, check whether your policy is underwritten through Flood Re. If it is not, the flood exclusion in your standard policy may apply without a subsidy. The Association of British Insurers' Flood Re checker tool (floodre.co.uk) lets you verify postcode eligibility.

A related issue: some insurers apply a "previously flooded property" exclusion for properties that flooded before the current policyholder purchased them. This exclusion may not appear prominently. When reviewing a property for purchase, always check the property's flood history through the Environment Agency's long-term flood risk tool.

How to Audit Your Own Policy

The exclusions above are all findable in your policy documents. They are not hidden — they're just long, and most people don't read them. If you do want to read them yourself, start with the exclusions section of the policy wording (not the policy summary), search for the words "unoccupied," "business," "gradual," and "unattended," and read each clause in full.

Rehuman's AI assistant does this automatically when you upload a policy. Ask "What isn't covered?" and it will pull every exclusion category and explain each one in plain language. Ask "Am I covered if my laptop is stolen from my car?" and it will reference the specific clause and tell you yes or no. That's what policy analysis should look like.