Whole-House Repiping in the Tri-Valley
Trusted by 900+ Homeowners Across Pleasanton, Livermore, and Dublin
Low water pressure, rusty water, or pinhole leaks showing up in multiple spots are signs your home’s pipes have reached the end of their life. Repiping replaces the old, failing lines with materials built to last decades.
Barnett Plumbing handles both supply repiping and drain repiping for homes throughout the Tri-Valley. Fixed-rate pricing, 3-hour arrival windows with a courtesy call, and a team that has been doing this for over 20 years.
Supply Line Repiping
Galvanized steel, polybutylene, and aging copper supply lines corrode from the inside out. You might notice discolored water when you first turn on a faucet, pressure that drops when two fixtures run at once, or small leaks at joints and fittings. These problems only get worse.
We replace outdated supply piping with copper, the most reliable material for residential water supply. Copper resists corrosion, handles temperature changes well, and typically lasts 50 years or more. A full supply repipe runs between $20,000 and $30,000 depending on the size of your home and the number of fixtures.
When Should You Consider a Supply Repipe?
If your home was built before 1990 and still has the original plumbing, it is worth having the pipes inspected. Homes with galvanized steel or polybutylene pipes should be evaluated sooner rather than later. Both materials are known for premature failure. Polybutylene, in particular, becomes brittle over time and can split without warning.
Drain Line Repiping
Drain and waste lines run under floors, through walls, and beneath your home’s foundation. When they crack, separate at joints, or develop root intrusion, you may notice slow drains throughout the house, sewage odors, or water staining on lower-level walls and ceilings.
We replace failing drain lines with ABS pipe, the standard for modern residential drain systems. ABS is lightweight, resistant to chemicals found in household waste, and holds up well in the soil conditions common across the Tri-Valley. Drain repiping typically runs between $15,000 and $25,000.
Cast Iron and Orangeburg Pipes
Many older Tri-Valley homes still have cast iron drain lines. Cast iron corrodes from the inside, building up scale that narrows the pipe diameter and causes recurring clogs. Orangeburg pipe (a fiber-based material used in post-war construction) collapses under soil pressure over time. Both should be replaced when found during inspection.
Concerned About Your Home's Pipes?
What to Expect During a Repipe
A typical whole-house repipe takes two to four days depending on the scope. Our crew protects flooring and furniture, patches drywall where access points are needed, and cleans up at the end of each workday. We walk you through the process before starting so there are no surprises.
All work is permitted and inspected per local building codes. We pull the permits, schedule the inspections, and handle the paperwork. CSLB License #910529.
Why Homeowners Choose Barnett for Repiping
Repiping is one of the larger plumbing investments you can make in your home. You want a contractor who has done hundreds of them and backs the work with a real reputation. Barnett Plumbing has earned over 900 five-star reviews across Google, Yelp, and HomeAdvisor over 20-plus years in the Tri-Valley.
We provide fixed-rate pricing before work begins. No hourly billing, no change orders mid-project. The number we quote is the number you pay.
Frequently Asked Questions About Repiping
How do I know if my house needs repiping?
Common signs include rusty or discolored water, recurring leaks in different locations, low water pressure that has gotten worse over time, and visible corrosion on exposed pipes. If your home has galvanized steel or polybutylene piping, a professional inspection is a good starting point.
How long does a whole-house repipe take?
Most residential repipes take two to four days. Larger homes or projects that include both supply and drain lines may take slightly longer. We provide a clear timeline before work begins.
Will I have water during the repipe?
Water is typically shut off during active work hours and restored at the end of each day. We coordinate with you to minimize disruption, and we let you know in advance when shutoffs are needed.
Why copper instead of PEX for supply lines?
Copper has a proven track record spanning decades. It resists corrosion, handles high temperatures well, and does not degrade from UV exposure. It is the material we trust most for long-term reliability in residential supply systems.
Do you handle the permits and inspections?
Yes. We pull all required permits, schedule city inspections, and handle the documentation. Repiping work in the Tri-Valley requires permits under local building codes, and we take care of the entire process.