Whole-House Repiping San Jose — Copper & PEX
Need whole-house repiping San Jose homeowners can trust? We replace failing galvanized and copper pipes with new PEX or copper systems at fixed prices.
When Your Pipes Are Failing
Most San Jose homes built before 1970 still have their original galvanized steel pipes. Those pipes are now 55+ years old. They've been rusting from the inside since day one. Many Campbell residents with 1950s homes face this exact problem.
The signs show up slowly. Brown water in the morning. Weak pressure at the kitchen sink. Pinhole leaks that come out of nowhere. By the time you see them, your pipes are at the end of their life.
A whole-house repipe replaces every supply line in your home. New copper or PEX pipes run through walls, ceilings, and crawlspaces. The old galvanized lines get capped off. Most repipes finish in two to four days. Your home walks out with another 50 to 100 years of clean water.
Call for Estimate
Signs Your Home Needs a Repipe
A few clear signs point to pipes that have run their course. If you see two or more, it's time for an inspection.
Rusty or Discolored Water
Brown or yellow water in the morning is the most common sign. The rust comes from inside your old galvanized pipes. It settles overnight. It flushes out when you turn on the tap. By afternoon, the water looks clear again.
Weak Pressure From Old Pipes
Galvanized pipes corrode from the inside out. The opening narrows over decades. A pipe that started at 3/4 inch may have only 1/4 inch left. The result is weak pressure at every fixture.
Recurring Pinhole Leaks
Pinhole leaks happen when corrosion eats through the pipe wall. The first one shows up in a wall or ceiling. You patch it. Six months later, another shows up somewhere else. That pattern means the whole system is failing. Our pinpoint water leak service can confirm whether the problem is isolated or widespread.
Visible Pipe Corrosion
Got exposed pipes in a basement, garage, or crawlspace? Look for green or white buildup on copper lines. Look for rust or scale on galvanized ones. Visible corrosion outside means worse corrosion inside. The pipe wall thins from the inside long before it shows from the outside.
Home Built Before 1970
Galvanized steel was the standard until 1960. Copper took over in the 1960s and 70s. Homes built before 1970 are the most likely to need a repipe today. Homes built between 1970 and 1990 with copper may also need work if hard water has caused leaks.
Pipe Materials We Use for Repiping
There are two main choices. Each has its place.
Copper Repiping
Copper has been the standard for decades. It's strong. It's fire-resistant. It lasts 50 to 70 years. Most homeowners trust it because they know how it works.
The downside is cost. Copper prices have climbed. Labor takes longer because of soldered joints. A copper repipe runs about 30 to 40 percent more than PEX.
Copper still works well for homes with exposed pipes, like in a finished basement. It also fits homeowners who want the proven track record.
PEX Repiping
PEX is a flexible plastic pipe. It's now the most common repipe material in the US. It's faster to install. It costs less. It handles hard water better than copper. It also doesn't corrode, so no future pinhole leaks.
PEX runs through walls and ceilings with fewer joints. Fewer joints means fewer failure points. The material has been used in homes since the 1980s and now has decades of proven use.
For most San Jose homes, PEX is the better value. We install both and explain the tradeoffs during the on-site visit. Repiping also permanently ends recurring slab leak problems by moving new lines out from under the foundation entirely.
Why So Many San Jose Homes Need Repiping
Whole-house repiping is one of our most common calls in older San Jose neighborhoods. Most pre-1970 homes still have their original galvanized supply lines. Those pipes are 55+ years old now. Three factors push San Jose homes toward whole-house repiping fast.
The first is the age of the housing stock. A huge share of San Jose homes were built between 1945 and 1970. That's the era when galvanized steel was standard. Neighborhoods like Willow Glen's historic homes, Cambrian Park, Rose Garden, and Naglee Park are full of original-pipe homes.
The second is hard water. San Jose Water Company delivers some of the harder water in California. Hardness runs from 7 to 26 grains per gallon by neighborhood. The minerals corrode galvanized fast. They also eat copper from the inside.
The third is seismic activity. Earthquakes shift slabs and stress old pipe joints. Even small quakes add up over decades.
Our Repiping Process
Every whole-house repiping San Jose job follows the same simple steps. No guesswork, no surprises.
Initial Inspection and Estimate
A tech comes out to look at your home. He checks the pipes, the layout, the fixture count, and the access points. You get a fixed price in writing within 24 hours. The estimate covers materials, labor, permits, drywall patching, and cleanup.
Permits and Preparation
We pull all required City of San Jose permits before work starts. We schedule the inspections too. You don't deal with city paperwork.
We protect your floors, furniture, and items with drop cloths and plastic sheeting. Work areas get sealed off to keep dust out of the rest of the house.
Pipe Replacement
The crew runs new lines through walls, ceilings, attics, or crawlspaces. We make small access holes in drywall where needed. New pipes get connected to your fixtures one at a time.
You usually have water for most of the job. Each section gets switched over fast. You only lose service for a few hours at a time.
Drywall Repair and Cleanup
Once the new system passes inspection, we patch every drywall opening. We prime and texture-match to your existing walls. Painting is usually quoted separately. We sweep, vacuum, and haul away all old materials.
Repiping Cost in San Jose
Pricing depends on home size, pipe material, and layout. Here are typical ranges:
| Service | Typical Price Range | Notes |
|---|---|---|
| 1-Bath PEX Repipe | $4,500–$7,500 | Smaller homes, 1–2 days |
| 2-Bath PEX Repipe | $6,500–$10,500 | Most common San Jose home |
| 3-Bath PEX Repipe | $8,500–$13,500 | Larger homes, 3–4 days |
| Copper Repipe | Add 30–40% | Over PEX pricing above |
| Drywall Patching | Included | Prime & texture-match |
| Permits | Included | We handle city paperwork |
These prices include materials, labor, permits, drywall patching, and cleanup. You see the full price before any work starts.
How Long Does Repiping Take?
Most repipes finish in 2 to 4 days. A small 1-bath home can be done in 1 to 2 days. A larger 3-bath home with multiple stories takes 3 to 4 days. Drywall patching adds 1 more day.
You can stay in the home during the work. Water shuts off only at specific connection points. Each shut-off lasts 2 to 4 hours.
Frequently Asked Questions
How much does whole-house repiping San Jose cost?
Costs typically run $7,500 to $15,000 depending on home size, pipe material, and access. PEX runs lower than copper. Single-story homes on raised foundations cost less than two-story slab homes.
How long does a whole-house repipe take?
Most repipes finish in 2 to 4 days. Day one is rough-in of new lines. Day two is connections and testing. Days three and four cover any drywall patching and final inspection. You'll have water turned off for a few hours each day.
PEX or copper — which is better for repiping?
PEX is more flexible, faster to install, resists freezing, and costs less. Copper lasts longer in some conditions and has higher resale appeal. For most San Jose homes, PEX is the practical choice. Copper makes sense for specific situations.
Will repiping damage my walls?
We open small access points at strategic spots, not entire walls. Most repipes need 4-8 small openings, each about a hand-width across. Drywall patching and painting are part of the job.
Do I need a permit for whole-house repiping?
Yes. The City of San Jose requires permits for repipe work. We pull the permit, schedule inspection, and meet the inspector on-site. Permit cost is included in our quote.