Water damage problems

Water damage is one of the biggest categories of home insurance loss. The Insurance Information Institute reports that water damage and freezing claims averaged $13,954 each over 2018–2022, occurred at 1.61 claims per 100 house-years — roughly one in 60 insured homes each year — and made up 27.6% of homeowners claims in 2022, up from 19.6% in 2020.

The slow leak is the expensive one, for two reasons. It has time to grow mold, and it is the type of loss most likely to be excluded. The Insurance Information Institute is clear that homeowners bear responsibility for maintenance and that policies exclude damage due to lack of maintenance — a leak you could have found and didn't tends to fall on you.

Signs of a hidden leak: an unexplained jump in the water bill, a musty smell that doesn't clear, warm or damp spots on a floor, bubbling or discolored paint, and warping baseboards. Any of them justifies looking behind the finish rather than repainting.

Sewer backup deserves its own mention. It is the most hazardous water type, and standard homeowners policies typically do not cover it — the Insurance Information Institute notes that it requires a separate endorsement or standalone product, usually at modest cost. If your home has a basement, that is worth asking your insurer about before you need it.

How to choose

Know the sudden-versus-gradual line

Sudden, accidental discharge from plumbing or appliances is the classic covered scenario; slow leaks and maintenance failures generally are not. Your policy is the authority.

Watch the water bill

An unexplained increase is often the first sign of a hidden leak, weeks before any visible damage.

Replace appliance supply hoses

Washing machine and ice-maker hoses are a common failure point and are cheap to replace. Braided stainless is the usual upgrade.

Ask about a sewer backup endorsement

The Insurance Information Institute notes that backups are not covered by typical policies and need a separate endorsement, usually at minimal cost.

Don't paint over a stain

A ceiling or wall stain is a symptom. Find the source before you cover it, or you will do it twice with rot in between.