Basement Leak Detection in Eagle Mountain

Leak detection is the diagnostic step of waterproofing a basement. Before anyone sells you a drainage system, the source of the water should be proven.

The Four Kinds of Basement Water

Sewer water is its own hazard; see basement sewage backup cleanup.

How We Find Leaks

1. Interview and timelineWhen does it get wet? After snowmelt, after the sprinklers run, or randomly? The pattern often points straight to the source.
2. Moisture mappingMeters trace the wet area to its highest reading — usually closest to the source.
3. Thermal imagingAn infrared camera shows cool, wet areas behind drywall without cutting.
4. Water meter testWith every fixture off, a moving water meter means a plumbing leak.
5. Controlled water testRunning a hose in a window well or near a wall section, one area at a time, to reproduce the leak.
6. Inspection openingsA small, patchable hole or borescope look confirms what is inside the wall.

Leaks that sat behind finished walls usually leave mold; the signs of hidden basement mold guide shows where to look.

Checks You Can Do Before You Call

1. Water meter testTurn off every fixture and appliance, note the meter, wait an hour without using water. If it moved, you have a plumbing leak.
2. Window well bucket testPour a bucket into each well. Standing water after a few minutes means a clogged drain.
3. Hose test, one area at a timeRun a garden hose against one wall section or window well for 15 to 20 minutes, then check inside. Move on only after you have checked.
4. Plastic testTape plastic to damp concrete for a day: moisture under it is seepage, moisture on top is condensation.
5. Paper towel trickTuck a dry paper towel at a window corner or crack before a snowmelt day; a wet towel tells you exactly where.

The window wells deserve their own look; our window well bucket test guide covers drains, gravel and covers.

Signs It Is Plumbing, Not Groundwater

• It gets wet in dry weather, in fall or in the middle of winter.
• The wet spot is near the water heater, softener, laundry or a bathroom.
• The water meter moves with every fixture off.
• The water bill went up for no reason.
• The wall is wet higher up than ground level outside.

One more clue: groundwater and snowmelt leaks show up low on the wall or at the floor joint and follow the weather. Plumbing leaks ignore the weather and often start higher up, near pipes and fixtures.

Slab and Under-Floor Leaks

Some leaks hide under the concrete. A warm spot on the floor, the sound of running water with everything off, or a water bill that jumped for no reason can point to a supply line under the slab. Those need a plumber with acoustic or pressure-testing equipment; tearing up floors to look is the last step, not the first.

Eagle Mountain's Most Common Leak Points

• Egress window wells with buried or clogged drains.
• Window bucks and frames where caulk has failed.
• Pipe and utility penetrations through the foundation.
• Shrinkage cracks in poured concrete walls of newer homes.
• Water heater, water softener and laundry supply lines.
• Basement bathroom shower pans and toilet seals.

What a Leak Inspection Costs and What You Get

A basement leak inspection usually runs $200 to $600 on its own, and is often free when it is part of a mold or water damage inspection. You should get a short written report: where the water enters, how it was confirmed, the moisture readings and photos, and the fix that matches the source.

Found mold while tracing a leak? Our basement mold removal after hidden leaks handles both in one visit.