Shower Pan Leak Detection & Repair in Georgetown, TX

The waterproof layer you never see

Under the tile floor of a tiled shower sits a waterproof pan, a membrane and a mortar bed built to catch every drop that gets past the grout and send it to the drain. The tile is not what keeps water in. The pan is. So when a shower leaks from its base rather than its valve, the pan or its membrane has failed, and the tile above can still look flawless while water escapes underneath.

That is what makes a pan leak so deceptive. The visible floor of the shower looks fine, but the structure beneath it has stopped being watertight.

How a pan fails

Pans fail in a few predictable ways. The waterproof membrane cracks or tears with age and settling. The seal at the drain, where the membrane clamps to the drain assembly, loosens or was never set right. The mortar bed cracks and lets water find a path the membrane no longer covers. On curbless and low-threshold designs, common in Sun City and other accessibility-minded homes, there is even less margin, because water has an easy route out of the base.

However it fails, the result is the same: water leaves the shower at floor level and goes into the subfloor and the room around it instead of down the drain.

The flood test that proves it

The honest way to confirm a pan leak is a flood test. We seal the drain, fill the shower base with water to a measured level, and leave it to stand. A sound pan holds that level for hours. A failed pan loses it, and we watch the water move into the surrounding floor, the wall base, or the ceiling below. A measured drop over a set time is direct proof the pan is the problem rather than the valve or the grout.

Alongside the flood test, moisture mapping and thermal imaging show where the escaped water has traveled, which tells us how far the damage has spread under the tile.

Rebuilding a watertight base

A pan that has failed cannot be patched into reliability, and we will not pretend otherwise. The repair means rebuilding the waterproof base: removing the failed membrane and mortar, setting a new pan with a properly clamped drain, and restoring the tile over it. It is a real job, and being straight about that up front is part of doing it right, because a quick surface fix over a failed pan simply leaks again in a few months.

Where the failure is at the drain seal rather than the whole membrane, the repair can be more contained, and the flood test is what tells us which situation you have.

Built for Georgetown's walk-in showers

Walk-in and curbless showers are everywhere in Sun City and the newer accessibility-minded homes in Rancho Sienna and Saddlecreek, and they put the most demand on a pan because the water has the least to stop it at the edges. Those showers are wonderful to live with and unforgiving when the membrane gives way.

If the floor just outside the shower has gone soft, tiles at the base have loosened, or a ceiling below the shower has stained, the pan is the first thing to test.