Most water leaks do not announce themselves with a puddle. They hide inside walls, under slabs, and beneath yards — quietly raising your water bill and feeding damage for weeks or months. In Summerville's humid Lowcountry climate, moisture hides especially well: average humidity around 72% means a slow leak feeds mold long before it ever shows standing water. Here are the 7 signs to watch for.
1. Your water bill climbs for no reason
The most common first sign. If usage hasn't changed and the bill keeps rising across billing periods, water is going somewhere unseen. Summerville CPW customers: compare usage in gallons, not just dollars, before assuming a rate issue. And rule out a running toilet first — drop food coloring in the tank; color in the bowl without flushing means the flapper leaks silently.
2. The water meter moves when nothing is running
Turn off every fixture, ice maker, and irrigation zone, note the meter reading, wait two hours without using water, then read it again. Any movement means a leak — the same first test professionals run before any locating begins.
3. You hear water when everything is off
A faint hiss or running-water sound in walls or floors with all fixtures off is a classic pressurized-line leak signature. Note where it sounds loudest — that detail helps the technician narrow the search.
4. Warm spots on the floor
A hot-water line leaking under a slab warms the concrete above it — one of the signature slab-leak signs. One patch of tile feeling warmer than its surroundings deserves attention, especially in slab-built Lowcountry homes.
5. Damp, musty, or discolored areas
Peeling paint, warped baseboards, mildew smells, or stains that return after repainting point to moisture behind the surface. Water travels along pipes and joists before surfacing — the stain is rarely directly below the leak, which is why wall and ceiling investigation matters.
6. Low water pressure
A leak diverts pressure. Gradual pressure loss across the house makes a supply-line leak a prime suspect; compare with neighbors to rule out a supply-side issue before calling.
7. Lush patches in the yard
One section of lawn growing faster than the rest, or soil staying soggy, often marks an underground service-line leak. Check that a sprinkler head isn't stuck on first — then run the meter test with irrigation isolated.
What to do next
If two or more sound familiar, run the meter test today. If the meter moves, professional leak detection can pinpoint the source without opening a wall. Call +1 843-936-8115 — open 24 hours.