The Complete Guide to Repiping Your Home in California
Whole-home repiping sounds overwhelming — but living with failing pipes costs more in leaks, damage, and emergency calls. This guide walks LA homeowners through when repiping makes sense, what it costs, and how to get through the project with minimal disruption.
What Is Whole-Home Repiping?
Repiping replaces the supply lines that carry fresh water through your walls, ceilings, and foundation — not the sewer drains. In a full repipe, new pipe (usually PEX or copper) runs alongside or replaces aging galvanized steel, polybutylene, or failing copper.
It’s a major project, but it eliminates the pattern of recurring pinhole leaks, low pressure, and discolored water that old pipe materials cause in LA’s hard-water environment.
When Repiping Is Necessary
- Galvanized pipes over 50 years old with visible corrosion
- Polybutylene (gray plastic) — prone to sudden failure
- Recurring pinhole leaks in copper lines
- Rusty or brown water from multiple fixtures
- Chronically low pressure throughout the house
- Home inspection flagged pipe age before a sale
Pipe Material Options
PEX (cross-linked polyethylene) is the most common choice for LA repipes today. It’s flexible (fewer wall cuts), resistant to scale, and affordable. Proper installation uses brass fittings and avoids UV exposure.
Copper remains the premium option — durable and proven over decades. It costs more in material and labor but adds resale appeal and handles high temperatures well.
CPVC works in specific applications but is less common for whole-home repipes in California residential work.
What Repiping Costs in Los Angeles
Most LA whole-home repipes run $8,000–$18,000 depending on home size, pipe material, access, and whether lines run through slab or attic. Partial repipes — one section of failing galvanized — cost significantly less.
We provide written quotes after an in-home inspection. Be wary of phone quotes without seeing your pipe layout — every LA home is different.
The Repiping Process
Day one: technicians map existing lines and prep access points. Water is shut off in sections so you’re not without water all day. Drywall cuts happen at strategic points — we patch and leave paint-ready surfaces.
Permits and inspections are required in most LA jurisdictions. We handle permitting as part of the project. Typical timelines run 2–5 days for an average single-family home.
Living through a repipe: You’ll have water shut off in sections, some wall access cuts, and moderate noise. Most homeowners stay in the home during the work — we restore water each evening.
Repipe vs. Spot Repair
One leak in an otherwise sound copper system? Spot repair makes sense. Third leak in two years on galvanized pipe? Repiping is cheaper than repeated drywall demolition and emergency calls. We tell you which side of that line you’re on — honestly.
Getting Started
Schedule an inspection if your home was built before 1970, has galvanized supply lines, or shows any of the signs above. Our pipe repair team evaluates what’s in your walls and gives you options — full repipe, partial repipe, or targeted repair — with upfront pricing on each.
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Wondering If Your Home Needs Repiping?
We'll inspect your lines and give you an honest recommendation with written pricing.
