Most homeowners policies won't cover problems with your foundation unless something sudden and accidental has happened to it. It's designed to cover damage, not deterioration. It's pretty rare for something to happen that damages a foundation. Most property claims are caused by storms or fire, and neither of these will usually damage foundation. If the foundation is sagging, leaking, crumbling, or deteriorating in some way, it's the homeowner's responsibility to maintain it. If you live in a newer home that has serious foundation problems, you may have recourse against the builder.
Foundation problems can cause significant damage to your home and personal property. Your insurance company isn't going to repair or replace property damaged by a leaky or crumbling foundation.
Business Development Officer, T.D. McNeil Insurance Services, Fresno, California
A homeowner’s policy pays for damages cause by named perils. The perils most likely to affect a foundation would be earth movement or flood. The most common homeowner’s policy excludes coverage for those perils. You can get policies to cover each of those circumstances. If, however, the foundation was damaged as the result of a named peril, such as fire, the damages would be covered under the Homeowners policy.
Foundation problems can cause significant damage to your home and personal property. Your insurance company isn't going to repair or replace property damaged by a leaky or crumbling foundation.