FOS Home Insurance Complaints UK: Which Insurers Perform Worst

What the published home insurance data tells you

The Financial Ombudsman Service releases a complaints dataset twice a year that names every business reaching a reporting threshold. For each home insurer the data shows complaints received, complaints resolved and the share decided in the consumer's favour. The uphold rate is the headline figure most people look for, because it indicates how often the FOS disagreed with how the insurer handled the disputes that escalated to it.

The phrase "which insurers perform worst" needs care. A high uphold rate signals that, among the cases that reached the FOS, the insurer's own final responses were frequently overturned. It is not a measure of how many customers complain relative to the size of the book, nor of whether the policies themselves are good value. Some large insurers appear high in absolute complaint counts simply because they cover millions of homes.

Home insurance covers two distinct products under one umbrella: buildings cover for the structure and contents cover for possessions. The FOS data usually reports these within general insurance rather than splitting them out, so anyone focused specifically on, say, subsidence or escape-of-water disputes needs to read the underlying files and recognise that the figures blend several types of claim.

Why home cover produces stubborn disputes

Home insurance complaints cluster around a handful of recurring issues. Escape of water is one of the most common and most contested, because tracing a leak, drying out a property and agreeing the scope of repairs can run for months, and disagreements over cause and exclusions are frequent. Subsidence claims are slower still and often involve disputes about monitoring periods and whether underpinning is justified.

Storm and flood damage generate seasonal spikes. Insurers may decline storm claims where wind speeds did not meet the policy definition of a storm, which surprises many policyholders. Flood disputes are shaped by Flood Re, the joint government and industry scheme that reinsures flood risk for eligible homes built before 1 January 2009, helping keep cover available in high-risk areas.

Underinsurance is a quieter but serious source of complaints. Where a sum insured is set too low, an insurer may apply average and reduce a settlement proportionately. Disputes also arise over single-article limits on contents, accidental damage exclusions, and the treatment of gradual deterioration, which most policies exclude as wear and tear rather than an insured event.

How to look up a specific home insurer

To check a particular insurer, download the FOS dataset for the relevant half-year, find the business by name, and read the general insurance line. Many household brands are underwritten by, or report under, a parent group, so the name on the policy document may differ from the entity in the data. Checking the underwriter named in the policy schedule avoids confusion.

Read the uphold rate against the volume. An insurer with a large market share will naturally generate more complaints in absolute terms, so a high count does not automatically signal poor service. The uphold rate is the better gauge of handling quality, but even that should be read across several periods, since a single half-year can be skewed by an unusual weather event or a one-off operational issue.

For market context, the ABI publishes statistics on weather, subsidence and escape-of-water claims. When a particular type of dispute spikes across the industry, the ABI data often shows a matching surge in underlying claims, helping distinguish a firm-specific service failing from a sector-wide pressure that affected everyone.

The DISP rules that govern home complaints

The FCA's DISP rules set the process. The consumer must complain to the insurer first. The insurer then has up to eight weeks to send a final response. If the consumer disagrees with it, or eight weeks pass without one, the case becomes eligible for the FOS. This sequence applies whether the dispute is about a declined subsidence claim or a contents settlement the policyholder considers too low.

Time limits are strict. A complaint normally must reach the FOS within six months of the final-response letter, and within six years of the event or three years from awareness of the problem. For slow-developing claims such as subsidence, the awareness test matters, because the underlying damage may have existed long before the consumer recognised an insured cause.

The FOS decides on what is fair and reasonable, weighing the policy wording, relevant law, FCA rules and good industry practice. For home disputes that often means examining whether an exclusion was applied correctly, whether the insurer's loss adjuster reached a reasonable conclusion, and whether the scope and quality of any repair was acceptable.

What the FOS can order a home insurer to do

Where it upholds a complaint, the FOS can direct the insurer to pay a claim it wrongly declined, increase an inadequate settlement, complete or redo repairs to a proper standard, or reimburse costs the consumer incurred because of delay. It can also award compensation for distress and inconvenience, which is common where a family was left living in a damaged or partly repaired home for an extended period.

An ombudsman decision is binding on the insurer if the consumer accepts it, up to the FOS award limits. The consumer keeps the right to reject the decision and go to court instead. Because the process is free and enforceable, most consumers accept a favourable outcome rather than litigate.

Strong evidence improves the odds. Photographs of the damage, dated correspondence, the policy schedule and statement of fact, any independent surveyor or builder reports, and a clear timeline of events all help the FOS investigator assess whether the insurer acted fairly. For escape-of-water and subsidence claims in particular, independent technical evidence often proves decisive.

Frequently asked questions

Does the FOS name the worst home insurer outright?

No. The FOS publishes complaint volumes and uphold rates for named businesses but does not declare a worst insurer. Readers must interpret the figures themselves, reading uphold rate and volume together rather than relying on a single ranking.

Are buildings and contents complaints reported separately?

Usually they are reported together within the general insurance category rather than split out. The underlying dataset can be examined for more detail, but the headline figures blend buildings, contents and other home-related cover.

How long do I have to bring a home insurance complaint to the FOS?

Normally six months from the insurer's final response, and within six years of the event or three years from when you became aware of the problem. The awareness test can matter for slow issues such as subsidence.

Can the FOS make my insurer redo a poor repair?

Yes. If the FOS finds the repair was substandard, it can direct the insurer to complete or redo the work, or pay for the work to be done properly, and may add compensation for the inconvenience caused.

Does Flood Re affect my right to complain about a flood claim?

No. Flood Re is a reinsurance arrangement between insurers and the scheme; your contract remains with your insurer. You complain to the insurer and escalate to the FOS in the normal way, regardless of how the risk is reinsured.

Is the ombudsman service free for home insurance complaints?

Yes. Consumers pay nothing to bring or pursue a complaint to the FOS. Any case fee is paid by the insurer in defined circumstances, never by the policyholder.