New supply lines through the whole house

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A repipe replaces the supply lines carrying water through the house. It's a big job, but it's the permanent fix for pipe materials that were never meant to last this long.

Which houses need it?

• Pre-1960s homes, galvanized steel lines corrode shut from the inside; weak pressure at every fixture is the tell
• Late-70s to mid-90s builds, some came with polybutylene supply pipe, which fails without warning; a lot of it is still in the ground and walls in the county's suburbs
• Pitted or pinhole-leaking copper, recurring pinhole leaks usually mean the line is done, not that one spot is bad

What does the job look like?

New PEX or copper runs get fished through walls and crawl spaces from a central manifold, most of the work is access holes, not demolition. Drywall patches where the lines were run, new shutoffs and supply tubes at each fixture, and the old line abandoned in place. A repipe is usually a one-to-three-day job depending on house size.

What should a quote include?

Which material and why, how the runs get routed, how many wall openings and who patches them, fixture-by-fixture scope, and permit handling. King County's cities each run their own permit offices, the pro who calls will know what yours requires.