The short answer
Not for soil movement, in most cases. The Texas Department of Insurance (TDI) lists earth movement in its column of damage most policies don’t cover, and its tip sheet on policy types says foundation repair is usually not covered even under all-risk policies. That rules out the usual Austin story: clay drying out in a drought, or swelling after rain.
The main exception is foundation damage caused by a plumbing leak, especially a sudden one. Some policies also carry a foundation endorsement. Whether your policy pays depends on its wording, so read it, then call your insurer.
Covered or not: the usual cases
| What happened | Usually covered? | Why |
|---|---|---|
| Clay shrank in a drought; a corner dropped | No | Earth movement and settling are excluded on most policies |
| Clay swelled after heavy rain; the middle heaved | No | Same exclusion |
| A tree’s roots dried the soil under one side | No | Still earth movement |
| A supply or drain line under the slab burst, and the slab moved | Often | Sudden and accidental water discharge is a covered peril on many policies |
| A drain line leaked slowly for months | Usually not | TDI says companies cover sudden and accidental discharge, not continuous or repeated seepage or leakage |
| A policy with a foundation endorsement | Up to its limit | Endorsements add foundation coverage, often capped |
National guidance points the same way: the Insurance Information Institute says most U.S. property policies treat damage related to movement of the earth as excluded.
The plumbing-leak exception
This is the part of Texas insurance law most homeowners haven’t heard of, and the part that matters most on a slab.
- The old standard policy. The 1991 Texas standard homeowners form, HO-B, named foundations in its exclusions; as quoted in a federal appeals opinion, exclusion 1.h ruled out loss caused by settling, cracking, bulging, shrinkage or expansion of foundations. But its accidental-discharge coverage included tearing out and replacing the part of the building needed to repair the plumbing, and switched the settling exclusion off for that peril.
- The regulator’s view. In a 1997 bulletin, TDI stated its position that under the HO-B, foundation settling or cracking caused by an accidental plumbing discharge is covered.
- The court’s ruling. In 1998, the Texas Supreme Court held in Balandran v. Safeco that the HO-B’s foundation exclusion doesn’t exclude damage from foundation movement caused by an underground plumbing leak.
Two cautions. First, many policies today aren’t the HO-B: TDI says Texas insurers began filing and using their own forms in 2003. Second, ISO’s widely used HO 00 03 form, as approved for Texas, leaves settling and foundation cracking not covered. The leak exception is real, but your own policy’s wording decides it.
Foundation endorsements
An endorsement is an add-on to a policy. TDI’s homeowners guide lists a foundation/slab endorsement among the common ones. One version TDI approved, the Foundation Coverage-Texas Endorsement, covers settling, cracking and movement of foundations caused by leaks from plumbing, heating, air conditioning or sprinkler systems, including tear-out to repair the system, and limits foundation coverage to 15% of the policy’s dwelling coverage.
If you’re shopping for a policy on an Austin house with a slab, ask whether a foundation or slab endorsement is available, what it covers, and what the cap is.
Insurance when you buy or sell
Insurance and a house sale meet in two places. A buyer’s insurer may ask about past foundation work, and a seller in Texas has to disclose known foundation problems and previous structural repairs on the state’s disclosure notice. Keep the plumber’s report, the contractor’s plan, any engineer’s letter, the permit and the warranty from a repair together; they answer both questions. The selling guide covers the disclosure form.
How to handle a possible claim
- Stop the water. If a leak is involved, shut it off and call a licensed plumber.
- Document it. Photograph cracks, wet spots and damaged finishes, with dates.
- Tell the insurer promptly. TDI says some policies have a deadline of one year.
- Don’t make permanent repairs first. TDI warns an insurer might deny the claim if it doesn’t see the damage first. Temporary steps to prevent more damage are different; keep receipts.
- Get the cause in writing. A plumber’s report on the leak, and a contractor’s or engineer’s report linking it to the movement, help the adjuster decide.
Questions for your insurer or agent
- Does my policy exclude earth movement and settling, and where?
- Is sudden and accidental discharge of water covered, including tear-out to reach the pipe?
- How does the policy treat a leak that went on for a while?
- Do I have, or can I add, a foundation or slab endorsement? What’s the limit?
- What’s the deadline to file, and what do you need from me?
If insurance doesn’t apply, the cost page explains how to read a repair quote and how to pay for it.
Want a contractor to look at it? Call to schedule an inspection.