My Water Pipe Is Leaking Under My House What Should I Do
Shut off the main water valve and call a plumber. Sudden bursts are usually covered, long-term leaks often aren't.
Free to compare
Turn off the water, get the leak stopped, then get a plumber to confirm when it started. A pipe that burst suddenly is the kind of damage your policy covers, along with the cost to tear out and replace flooring or drywall to reach it. A pipe that's been seeping for weeks tells a different story. If the plumber's report says this was gradual, or there's old staining and warped wood that predates the leak, the insurer can treat it as wear and tear, which isn't covered, and mold that grows from it usually isn't either.
What your policy actually pays for this
Coverage for the pipe, the water damage, and any mold can split across different rules depending on your policy's limits and how the leak started. Comparing policies now shows what's covered before the next leak decides it for you.
What happens with the repair bill and the access damage
Fixing the pipe itself usually isn't covered. Homeowners insurance pays for the sudden, accidental damage water causes, not the worn-out or broken part that caused it. So the plumber's bill to replace the section of pipe is typically on you, while the cost to cut open the wall or ceiling to get to it, and to patch and repaint afterward, is usually part of the claim. Check your declarations page for how your policy splits this, since the exact wording varies.
If the leak is under a slab foundation, this gets more expensive fast. Breaking through concrete to reach the pipe, repiping, and restoring the slab afterward can run well past what a wall repair costs. Many policies have a specific sublimit for this kind of damage, a cap that's lower than your overall dwelling coverage, so the payout might not stretch as far as you'd expect. That sublimit is worth finding before you're relying on it.
Water that touches your belongings, not just the house itself, falls under personal property coverage. Furniture, flooring materials you'd stored, boxes in a crawlspace, anything soaked or warped gets handled separately from the structural repair, usually up to your personal property limit. Take photos of everything affected before it's thrown out or dried. An adjuster working from pictures has more to go on than one working from a list alone.
Get the repair done through a licensed plumber and keep the invoice. Hold onto the report on when the leak likely started, and any drying or mold remediation receipts. An insurer reviewing a claim like this is asking two things. Was the damage sudden, and was it dealt with promptly once it was found. Documentation answering both is what moves a claim along instead of stalling it.
What to do in the first few hours
Shutting off the main valve stops the damage from getting worse, but a few other things matter just as much in those first hours. If the water is anywhere near outlets, switch panels, or a water heater, cut power to that area at the breaker before doing anything else. Standing water and electrical current don't mix, and that risk outranks any concern about the pipe or the floor.
Once the water is off and it's safe to move around, start pulling out anything that can be saved. Rugs, furniture legs sitting in water, boxes on a crawlspace floor, all of it needs to come out or get elevated fast. Mold can start within a day or two in warm, damp conditions, and insurers expect homeowners to take reasonable steps to prevent that spread. Leaving soaked items in place for a week because a claim hasn't been filed yet can work against you later, even if the original leak was clearly sudden.
Call a water mitigation company or restoration service if the damage is more than a small spot, separate from the plumber fixing the pipe. These are two different jobs. The plumber deals with the broken pipe. The mitigation crew deals with drying out the structure, pulling wet insulation, and running fans or dehumidifiers so the damage doesn't turn into mold or rot. Many insurers have a short list of companies they work with regularly, and calling one quickly is often exactly what the claim process expects.
Report the leak to the insurer as soon as the immediate danger is handled, not after repairs are finished. A claim reported the same day or the next day reads very differently than one reported two weeks later, even when the underlying damage is identical. While waiting to hear back, keep every receipt. Save the plumber's bill, the drying equipment rental, and any hotel cost if part of the house is unlivable. Some policies include additional living expense coverage for exactly that situation, and it's worth checking the declarations page to see if it's included and what it covers.
Before the next leak
Check your declarations page for your water damage sublimit, your personal property limit, and whether additional living expenses are included. Knowing those numbers now matters more than finding them out mid-claim.
