A leak under the kitchen or bathroom sink soaks cabinets, flooring, and walls out of sight. We find the moisture, remove the water, dry the structure, and repair the damage. Call 24/7.
Sink leaks rarely start with a flood. They start with a drip you cannot see, a slightly damp cabinet floor, or a smell you cannot place. Because the plumbing sits inside a closed cabinet, the water has plenty of time to soak the base, spread under the flooring, and move into the wall behind. This page shows how to stop the water, how to find the source, and what cleanup should cover after the plumber is done.
Once the water is stopped, drying matters as much as the repair. Use our first 24 hours after water damage guide for the next steps.
Wipe every pipe and fitting dry, lay dry paper towels or tissue under them, then run the water for a minute. Watch which spot wets the paper first. Run the disposal and, if you have one, the dishwasher, then repeat.
| Where it is wet | Likely cause |
|---|---|
| At the shut-off valve or supply line | Loose compression nut or a worn braided line |
| Below the drain basket or P-trap | Loose slip nut or a cracked trap |
| Under the garbage disposal | Worn seal or a cracked housing |
| Under the faucet | Failing faucet base seal or supply hose |
| Only when the dishwasher runs | Dishwasher drain or supply connection |
| Top of the cabinet or countertop edge | Failed seal around the sink rim |
A kitchen leak may also be coming from the dishwasher or another appliance. See appliance water damage in Frisco. For a sink that has overflowed rather than leaked, read overflowing sink and tub.
More patterns are listed in our guide to hidden water damage signs.
Most cabinet bases are made of particleboard, which swells and weakens when wet. Even after the leak is fixed, a damp base can keep growing mold and smell.
Water follows the cabinet base into flooring. Hardwood and laminate lift or cup at the seams. See how to dry hardwood floors after water damage and can water-damaged laminate be saved.
Water can run into the drywall behind the cabinet. When the sink is on an upper floor, it also reaches the ceiling below. If you notice stains there, see ceiling leak repair in Frisco.
If it was a supply-line burst rather than a drip, our burst pipe water damage page covers the larger-scale response.
Wet material can start growing mold within a day or two. Read mold after water damage in Frisco. Our water damage categories page explains how drain-line water differs from supply water.
Call now. We will find where the water went and dry it before it damages more.
A supply line that bursts or a trap that suddenly separates is commonly handled as sudden and accidental damage. A drip that went on for months is more likely to be treated as wear and tear and may be excluded. The plumbing repair itself is usually not covered, while damaged cabinets, flooring, and walls may be. Photograph the area before cleanup, keep the plumber's invoice, and report the claim promptly. Our Texas water damage insurance claim guide and restoration cost guide for Frisco explain what to expect.
We serve Frisco neighborhoods and the nearby cities of Plano, Allen, McKinney, and Prosper.
Common sources are loose or worn supply lines, a leaking P-trap connection, a failing garbage disposal seal, a dripping faucet base, and a dishwasher connection. A dry-paper-towel test while running water helps locate the exact spot.
Close the small shut-off valves under the sink by turning them clockwise. If they do not close, shut off the main water supply. Then place a bucket under the leak and empty the cabinet.
Yes. Slow leaks soak the cabinet base and subfloor and can lead to swelling, odor, and mold long before a puddle appears.
Sudden and accidental leaks are often covered for the resulting damage, while gradual leaks from wear are commonly excluded. The plumbing repair itself is typically not covered. Confirm with your insurer.
A plumber fixes the leak itself. A water damage company removes the water and dries the cabinet, wall, and subfloor so damage does not continue after the repair.
