Shower Repair · Highland, CA

A shower has more going on than folks realize. There's a mixing valve inside the wall, a diverter that sends water up to the head or down to the tub spout, a supply and drain running through the framing, and a waterproof pan under the tile keeping everything out of your subfloor. When one of those parts starts to fail in Highland, Redlands, or Yucaipa, it usually shows up as one of three symptoms: a drip that won't quit, a temperature swing every time the toilet flushes, or a water stain on the ceiling below the bathroom.

The drip is almost always a cartridge. Our hard water, running about 17 grains per gallon, chews through the rubber seals inside Moen, Delta, Kohler, and Pfister cartridges faster than the same valves would last in softer water. Most homeowners try to muscle the handle tighter, which just cracks the plastic stem. A $40 cartridge and 30 minutes usually solves it. If the valve body itself is scored, we swap the whole valve and update to a pressure-balance model while we're in there.

Temperature swings are a code issue in California. Older homes still have single-handle valves with no anti-scald protection. Somebody flushes upstairs, your cold line drops, and the shower goes from comfortable to painful in a second. We install pressure-balance and thermostatic mixing valves that hold your setpoint even when other fixtures pull water. Bonus: they feel like a stronger shower because the valve is properly sized.

The ceiling stain is the one to take seriously. Water finding its way down from a shower usually means either a bad drain gasket, a torn pan liner, or a supply line dripping inside the wall. We pressure-test the lines first, then check the drain, then the pan. That order matters. Tearing tile out to chase a leak that turns out to be a $20 gasket is a bad afternoon nobody needs.

If your shower is dripping, scalding, or leaving marks on the ceiling below, don't wait for it to turn into a rebuild. Grand Plumbing repairs showers across Highland and the Inland Empire the same day whenever we can, and we'll always try the small fix first.