Does Homeowners Insurance Cover Foundation Repair? Cracks, Leaks, and Settling

Usually not. Standard homeowners policies exclude foundation damage from settling, shrinking, bulging or expansion, “including resultant cracking”, and they exclude earth movement as well (PropertyCasualty360, ISO form HO 00 03). Foundation repair can be covered when something the policy does cover caused the damage, such as a sudden plumbing leak, a fire, a vehicle hitting the house, or an actual collapse. The cause is the whole question, so the claim is won or lost on what an engineer or plumber can prove.

The short version:

• Ordinary foundation cracks from settling, soil movement or age are excluded by the standard ISO homeowners form.
• Earthquake, sinkhole and other earth movement need separate coverage; California insurers must offer earthquake coverage to homeowners (California Department of Insurance).
• A sudden plumbing leak under the slab is the main gray area. Texas’s top court once found coverage for that kind of damage under the old Texas HO-B form (Texas Department of Insurance).
• Some policies, such as one Texas FAIR Plan endorsement, exclude leaks from pipes “within or below the slab or foundation” outright (Texas FAIR Plan).
• Get the cause in writing from a structural engineer or plumber before you file.

This is general information, not insurance or legal advice. Policy wording varies by insurer and state, and your own policy decides the claim.

What the policy says about foundations

Most US homeowners policies are built on forms written by ISO, an organization that drafts standard policy language. In the current HO 00 03 form, the dwelling is covered against any risk of direct physical loss unless the policy excludes it. The list of exclusions includes wear and tear, “Mechanical breakdown, latent defect”, rust, and “Settling, shrinking, bulging or expansion, including resultant cracking, of bulkheads, pavements, patios, footings, foundations, walls, floors, roofs or ceilings” (PropertyCasualty360).

A second, broader exclusion covers earth movement. A New York policy quoted in a 2007 appeals decision defined it as “earthquake; landslide; mine subsidence; mudflow; earth sinking, rising or shifting” and applied it “regardless of any other cause or event contributing concurrently or in any sequence to the loss” (Cali v. Merrimack Mutual Fire Insurance Co.). That last phrase matters. It means the insurer does not have to show that soil movement was the only cause, only that it was part of the chain.

Insurers treat a slowly cracking slab as a maintenance and construction problem, not a sudden accident. That is why the honest answer for most cracks is no.

When foundation damage can be covered

The same form adds coverage back in a few situations.

A sudden discharge of water. The ISO form says that, despite the exclusions above, “we cover loss to property covered under Coverage A or B resulting from an accidental discharge or overflow of water or steam” from a plumbing, heating or air conditioning system. It also covers “the cost to tear out and replace any part of a building” when that is needed to reach and repair the system (PropertyCasualty360). If a supply line bursts under your slab, the cost of breaking out concrete to reach it may be paid even when the pipe itself is not.

A covered peril hits the foundation. Fire, explosion, a car driving into the house, or a tree blown onto a basement wall are direct physical losses. The settling exclusion is about gradual movement, not impact.

Collapse. Homeowners policies include limited collapse coverage, defined in standard policies as “an abrupt falling down or caving in of a building or any part of a building” (Connecticut Office of Legislative Research), and only when it comes from a listed cause such as hidden decay or hidden insect damage. Bowing, cracking or sagging is not enough under that wording. Our guide to termite damage explains how courts have read it.

Separate earth movement coverage. Earthquake policies and endorsements fill the earth movement gap. In California, a homeowners insurer “must offer to sell you earthquake insurance”, and the California Earthquake Authority offers deductibles of 5% to 25% of the dwelling limit (California Department of Insurance). Those deductibles are large, so read them before you count on the coverage.

The plumbing leak cases

Slab leaks are where most of the real fights happen, and the results depend heavily on wording.

Texas found coverage under its old form. In Balandran v. Safeco Insurance Co. of America (Tex. 1998), water from an underground plumbing leak caused the foundation to move and the house to crack. Safeco relied on the foundation exclusion. The Texas Supreme Court read the policy’s “exclusion repeal” language for accidental discharge as ambiguous and resolved it for the homeowners (Insurance Journal). The Texas Department of Insurance then told insurers the 1991 HO-B form “covers damage to the foundation of the insured’s dwelling from foundation movement caused by an underground plumbing leak” and asked them to report claims they had denied (TDI Bulletin B-0062-98). A year earlier, the department had written that when accidental discharge “causes settling, cracking, bulging, shrinkage, or expansion of the foundation”, the “damage to the foundation is a covered loss” under that form (TDI Bulletin B-0032-97).

That ruling concerned a specific Texas form. Many policies written since then say something different.

Some forms now exclude slab leaks. A Texas FAIR Plan endorsement covering sudden water discharge applies only to plumbing “above the surface of the ground and above and outside the slab or foundation.” It excludes leaks from pipes “within or below the slab or foundation”, excludes tearing out “a slab, foundation or foundation fill material”, and caps the whole peril at $5,000 per policy period (Texas FAIR Plan, HO-400).

You may have to show the damage, not just the break. In a Florida case, Homeowners Choice v. Maspons (Fla. 3d DCA 2017), a cast iron drain line under a 1957 slab had failed. The owners had not claimed any water damage inside the house, and the slab had not been opened. The appeals court reversed an order requiring the insurer to pay for tearing out the slab, because there was no evidence yet that water had damaged anything around the pipe. It left the owners free to claim again if damage surfaced (Rough Notes).

A covered cause does not always beat the exclusion. In Cali, the owner argued her slab sank because buried wood had decayed and left a void, and decay was a covered peril. The New York court still applied the earth movement and settling exclusions and ruled for the insurer (Cali).

What is and isn’t covered

Sources: ISO HO 00 03 via PropertyCasualty360; Texas FAIR Plan; California Department of Insurance.

A state quirk: Connecticut’s crumbling foundations

In Connecticut, many concrete foundations poured with aggregate containing the mineral pyrrhotite have been slowly deteriorating. The state’s legislative research office reported that insurers denied many of these claims under exclusions for settling and for defective materials, and that the “collapse” question went to the Connecticut Supreme Court (Connecticut Office of Legislative Research, 2018). The legislature created a nonprofit captive insurer, the Connecticut Foundation Solutions Indemnity Company, to give repair grants “up to a maximum of $175,000”, against an average homeowner cost of about $189,000 to replace a foundation (Connecticut Office of Legislative Research, 2020).

The wider lesson applies everywhere. When a foundation problem affects a whole region, look for a state program, not just your policy.

What to do if you find foundation damage

1. Find out whether water is involved. Unexplained warm spots on the floor, a jump in your water bill, or the sound of running water point to a leak. Shut off the main if you suspect one.
2. Get the cause in writing. Hire a licensed plumber for leak detection and, for structural movement, an independent structural engineer. The report should say what caused the movement and when it likely started. That opinion usually decides the claim.
3. Photograph and measure the cracks over time. Date-stamped photos with a tape measure in frame show whether damage appeared suddenly or grew for years.
4. Read the exact exclusions and any slab language. Look for the words “slab”, “foundation” and “below the surface of the ground” in the water and tear-out sections.
5. Report promptly if a covered cause is plausible. Hidden leaks keep doing damage, and late notice gives the insurer another argument. Ask for any denial in writing with the policy language it relies on. If the insurer investigates while keeping its options open, you may get a reservation of rights letter.
6. Do not let a repair contractor demolish the evidence. Keep the failed pipe section and let the adjuster inspect before anything is removed.

Frequently asked questions

Does homeowners insurance cover foundation issues?

Only when a covered peril caused them. Gradual settling, soil shrinkage and age-related cracking are excluded. A sudden plumbing leak, fire, impact or real collapse can be covered, depending on your form.

Does homeowners insurance cover foundation cracks?

Not cracks from settling or shrinking; the standard form excludes “resultant cracking” of foundations. Cracks caused by a covered event, such as a vehicle impact, are a different story.

Does insurance cover foundation problems caused by a plumbing leak?

Sometimes. Water damage from a sudden leak is usually covered and tear-out costs often are too, but many policies exclude slab or foundation leaks, and insurers often argue the earth movement exclusion. Texas found coverage under its old HO-B form in Balandran.

Does homeowners insurance cover foundation damage from tree roots?

Generally no. Root pressure is gradual and falls under the settling and earth movement exclusions. A tree that falls onto a foundation wall in a windstorm is different, because that is sudden impact from a covered peril.

Is foundation damage from an earthquake covered?

Not by a standard homeowners policy. You need earthquake coverage. California regulators note that standard homeowners insurance “does not cover earthquake damage” except for fire that follows it.

Where to go from here

Find the exclusions, the water damage section and any slab language in your policy, and keep a written cause-of-loss report if you ever file. If water is the culprit, see how insurers treat burst frozen pipes and water damage more broadly. Arhox is an independent publication, not an insurer, broker, or law firm; our editorial policy and disclaimer explain how these guides are prepared.