Signs of Hidden Water Damage

Brown or yellow rings on ceilings, especially under bathrooms and laundry rooms, are a classic sign. Stains that grow after each shower or wash point to a leak from that fixture.

A musty, earthy smell in a closet, basement or under a sink often means moisture and the start of mold.

Cupped hardwood, lifting laminate seams, loose tiles or soft spots near toilets, tubs and dishwashers suggest water underneath.

Bubbling or peeling paint, swollen baseboard and drywall that feels soft near the floor all point to water inside the wall.

Turn off all water use and check the meter. If it moves, water is going somewhere. Common culprits are toilets, irrigation valves and hidden supply leaks.

A bill that jumps without a reason is worth a closer look, especially in winter when irrigation is off.

Look at the caulk and grout around tubs and showers. Gaps let water behind tile every time you shower. Loose tiles, a soft floor near the toilet or a toilet that rocks are signs water has reached the subfloor.

Check under the sink with a flashlight for drips, warped cabinet bottoms or stains. Pull out the fridge once a year to check the ice maker line, and look at the floor around the dishwasher for swelling or stains.

Washer hoses wear out. Check them for bulges or cracks and replace rubber hoses with braided steel. Look for stains on the ceiling below an upstairs laundry.

Feel carpet along exterior walls, look for white chalky marks on concrete and check the base of the water heater and around the sump pit. A dehumidifier that fills much faster than usual can also point to a moisture problem.

After storms, look for stained roof sheathing, damp insulation and daylight around vents. Ice dams in winter can push water under shingles at the eaves.

A provider with moisture meters and a thermal camera can confirm a hidden leak without tearing open walls. Early drying prevents mold and keeps repairs small.

Look for soggy patches in the yard that do not dry, especially along the line from the meter to the house. A leak in the service line on your side can show up as a wet spot or a higher bill.

Check around the furnace, air conditioner coil and humidifier. Condensate lines can clog and overflow, and whole-house humidifiers can leak.

Stains below windows, swollen sills and peeling paint around door frames point to water getting in around the frame, often after storms.

Each season, take a quick walk with a flashlight and note anything new. Small changes are easier to catch when you look regularly.

Look at the garage ceiling under any bathroom or laundry above, and along walls where water lines run. Stains, sagging or peeling texture are signs of a leak. Garages are often where frozen pipes start, too.

Listen for running water, hissing or dripping when nothing is on, especially at night when the house is quiet. A toilet that refills by itself every so often is leaking at the flapper.

If any sign appears, start with the meter test and a look at nearby fixtures. If you find water or high readings, stop the source if you can and call for help. Small leaks found early are inexpensive to fix.

Pull out the refrigerator, washer and dishwasher once a year if you can. Look at the hoses, the floor and the wall behind them. Swollen flooring or stains there mean a slow leak has been running for a while.

Water above a ceiling often finds its way out through the hole for a light fixture or fan. Drips, stains or rust around a fixture point to water above it.

Small bubbles in paint, caulk pulling away at the bottom of trim and nail heads that rust are quiet signs that water has been reaching a wall. They are worth checking with a meter before they grow into stains.

A stain the size of a coin today can be a soaked subfloor next month. Checking with a moisture meter costs far less than opening a wall later, and catching a leak early is the surest way to avoid mold.

Find and stop the source if you can, then have the area checked with moisture meters. Early drying prevents mold; see mold remediation if growth is already there.

Questions about signs of hidden water damage? Call (720) 731-0398 to reach a local Castle Rock provider, 24 hours a day.