Pipe Replacement in Sunnyvale, CA

Much of the housing here went up during the aerospace and semiconductor years, and the supply lines that came with it were galvanized steel or early copper. Galvanized fails from the inside out. The zinc coating wears away, the steel underneath rusts, and the bore narrows until the upstairs shower drops to a trickle whenever someone runs a tap downstairs. By the time you see rust in the water, the pipe has usually been closing up for years. Copper fails differently. It stays open but develops pinhole leaks, small perforations that show up as a damp patch on a ceiling or a stain on a wall long before anyone hears water running. Neither material announces itself. What homeowners actually notice is low pressure, cloudy or discolored water first thing in the morning, or a third leak in two years in a different part of the house. That last pattern is the one worth paying attention to, because separate failures in separate rooms usually mean the system is aging out rather than that you've had bad luck three times.

Not every leak means repiping. A single failure on an otherwise sound copper system is a pipe repair, and we'll tell you that rather than quote you a house. Whole house repiping earns its place when failures have started repeating, when the pipe is galvanized and the bore has closed up, or when walls are already open for a remodel and doing it now costs a fraction of the disruption it will cost later. The honest test is the pattern, not the last leak. One failure at a fitting that took a knock is an event. Three failures in three years across different runs is a system telling you where it is in its life. We look at the material, the age, the pressure at several fixtures, and where previous repairs went in, then tell you which of the two you have. Sometimes the answer is a partial, replacing hot water runs that have failed repeatedly and leaving sound cold lines alone. That middle option gets skipped a lot, and for some houses it's the right one, provided the cold lines really are sound.

New supply pipe is usually copper or PEX, and both are approved under the California Plumbing Code. Copper is rigid, familiar, and tends to follow the route the old pipe took. PEX is flexible, which means fewer joints and more ways through a finished house, and fewer joints matters because joints are where supply systems leak. The right choice depends on your layout, your water, and how much of the house is already open. The part homeowners care about most is the walls. Repiping a finished home means opening access at chosen points rather than stripping rooms, and a plan that puts those points where they're easy to close again is most of the job. We map the runs before anything is cut, show you exactly where the access points will be, and leave the openings clean and ready for patching. On most single-family homes the water is back on the same day. The work is permitted with the City of Sunnyvale and inspected at the end, which is what you want on record if you ever come to sell the house.