Repiping that ends the low pressure and rust-colored water for good

If your older home has weak pressure, brown water after a vacation, or a leak every year somewhere new, the supply pipe itself is the problem. A whole-home repipe replaces it all at once, typically in two to four days, and we patch the drywall behind us.

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Why older valley homes need repiping

The culprit in pre-1960s Boise, Nampa and Caldwell homes is galvanized steel. Over decades, the zinc coating wears away and the steel rusts, and the rust builds inward until a pipe that was three-quarters of an inch is passing water through an opening the size of a pencil. The symptoms arrive in order: pressure drops at the fixtures farthest from the meter, hot water gets weaker than cold because heat accelerates the corrosion, water runs rust-colored after sitting, and finally pinhole leaks start appearing at the threads. Hard water speeds all of it along.

Polybutylene is the other common reason. It was installed in some 1980s and early 1990s subdivisions, and it fails from the inside as chlorine in the water attacks the plastic. There’s no warning before a fitting lets go.

How a repipe goes

We start with a walk-through to map every fixture and plan the new runs, aiming for the fewest wall openings. On day one we shut the water down in the morning, run the new PEX or copper through the attic, crawl space and walls, and reconnect the fixtures with new shutoff valves, restoring water by evening. The next day or two finishes the remaining runs, the main shutoff and the water heater connections. The inspector signs off, and then our drywall finisher closes and textures every opening so it’s ready for paint.

Protecting the new pipe

A repipe is also the right time to fix the conditions that shortened the life of the old one. We check incoming pressure and replace a failing regulator, add a softener tie-in if you want one, and insulate runs in crawl spaces and exterior walls where Idaho winters have a habit of finding unprotected pipe.

What changes afterward

Full pressure at every fixture at once. Clear water first thing in the morning. A shutoff valve that works at every sink and toilet. And an end to the annual leak hunt. Repiping is one of the larger plumbing projects a home ever needs, which is why we quote it flat, offer financing, and warranty the work in writing.

Whole-Home Repiping questions we hear a lot

How do I know if my house needs repiping?

Galvanized steel pipe, which looks like dull gray threaded pipe, was standard in Treasure Valley homes into the 1960s and rusts shut from the inside. Polybutylene, a gray plastic used in some 1980s and early 1990s homes, becomes brittle and fails at fittings. If you have either, repiping is a matter of when, not if. Copper lasts longer, but we do see pinhole-prone copper in certain areas. A quick look at exposed pipe in the basement or crawl space usually answers the question.

PEX or copper?

PEX is flexible, handles freezing far better than rigid pipe, costs less and needs fewer wall openings. Copper is rigid, proven, and preferred by some owners for resale perception. For most Treasure Valley homes we recommend PEX with a central manifold, and we’re happy to quote copper alongside it.

How long will I be without water?

Usually only during working hours on the days we’re there, and we restore water every evening. A typical three-bathroom home takes two to three days of piping plus a day for the drywall patching, which is done after the inspection.