Complete Whole-House Water Line Replacement in Sunnyvale, CA

Aging galvanized and CPVC supply lines replaced with copper across Sunnyvale and the South Bay, in 1 to 3 days.

Up to 25-Year Warranty on Repiping
See Offer details

What the warranty covers:

  • All joints, fittings, and connections installed by JetPipe
  • Any leak or failure at the repipe installation points
  • Full repair or re-do at no charge, parts and labor included

Applies to whole-house repiping completed by JetPipe Plumbing. Does not cover damage caused by freezing, physical impact, third-party modifications, seismic events, or conditions unrelated to the original installation.

The warranty transfers to the new owner if the house is sold, as long as JetPipe services the plumbing.

Call JetPipe Plumbing: (650) 495-4570

Experienced & Certified Team
Licensed C-36 contractors, not subcontractors
Same-Day Service
Open daily, 7 AM to 10 PM
Upfront Written Pricing
You approve the price before we start
400+ Reviews
Across Google, Yelp, and Thumbtack

JetPipe Plumbing provides whole-house water line replacement in Sunnyvale, CA, serving homeowners throughout Menlo Park, Santa Clara, and the South Bay. This service replaces every hot and cold supply line in the home, from the main shutoff to each individual fixture, in a single coordinated project.

The Fix for Aging Galvanized or CPVC Pipe

Older homes often still have galvanized steel supply lines, which corrode from the inside and gradually restrict water flow while raising the risk of a sudden leak. Some newer homes have CPVC pipe that becomes brittle over time. Whole-house water line replacement addresses both by replacing every line at once.

Whole House Water Line Replacement

Complete replacement of all hot and cold supply lines throughout your home, from the main shutoff to every faucet, shower, toilet, and appliance connection.

Full replacement of the primary line bringing water from the municipal supply into your home. It can be replaced on its own or together with the interior lines.

Targeted replacement of specific corroded or failing sections, such as a bathroom wing or a kitchen branch, where the problem is localized and the rest of the system is intact.

Free Pipe Check

Do Your Pipes Need Replacing?

Four quick questions and a simple magnet test. See what your pipes are likely made of and whether a repipe makes sense.

  • About 1 minute
  • No email needed
  • Instant result

When was your home built?

A best guess is fine.

Which city is your home in?

Permit requirements depend on the city.

Try the magnet test

Grab any fridge magnet. It takes 30 seconds.

  1. Find an exposed water pipe: under the kitchen sink, next to the water heater, or where the main line enters the house.
  2. Wipe off any paint or grime.
  3. Hold the magnet to the pipe itself. Skip the shutoff valve: valves are usually brass and won't hold a magnet either way.

Have you noticed any of these?

Select all that apply.

Broader Scope Than a Single Line

Whole-house water line replacement covers the entire supply system inside the house, a broader scope than a main water line replacement, which covers only the underground line coming in, or a single pipe repair. It is the right fit when multiple sections of old piping are failing or nearing the end of their service life together.

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Galvanized Pipe Replacement
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CPVC Line Replacement
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Copper Repipe
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PEX Repipe
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City Permit & Inspections
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Drywall Patching & Cleanup
Financing Options Available
$0 Down · 0% Interest
Financing Options Available

Financing through Synchrony with $0 down and 0% interest when you pay the full balance within 6, 9, 12, or 18 months. You pay exactly the amount on our invoice. Subject to credit approval.

Signs You May Need Whole-House Replacement

Low water pressure throughout the house, discolored or rusty water, recurring pinhole leaks in different locations, and visible corrosion on exposed pipes are all signs that a home’s supply lines may need replacing house-wide rather than one section at a time.

1 to 3 Day Turnaround

Most whole-house water line replacement projects are completed in one to three days, depending on the project. Drywall patching is included.

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Locally Owned & Operated in Sunnyvale

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Specialists in Water Line Installation & Repair

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Honest Estimates & Detailed Project Walkthroughs

water line replacement

Instant Quote

See What Your Repipe Will Cost

Answer a few questions about your home and get a personalized estimate online.

Copper Piping and Up to 25-Year Warranty

Nearly every whole-house water line replacement we do is copper. The work is covered by a warranty of up to 25 years that transfers to the new owner if the house is sold, as long as JetPipe services the plumbing.

Feature
Repair
Full Replacement
Cost
Lower upfront
Higher initial investment
Scope
Fixes one section at a time
Replaces every supply line at once
Best For
Isolated damage, newer pipes
Galvanized, CPVC, or aging systems with recurring leaks
Longevity
Temporary to mid-term fix
50+ year solution
Disruption (Full Replacement)
Minimal
Managed, typically 1 to 3 days with drywall patching included
Timeline (Full Replacement)
Often same-day
1 to 3 days for most homes

Still unsure what your home needs?

Request a Free Inspection & Personalized Quote, no pressure.

Project Timeline

What to Expect From Estimate to Sign-Off

Replacing every supply line starts with a free visit. A technician looks at the pipe material and how the lines run through the house, then you get a written price. Financing is available if you would rather pay over time.

Replacing the interior water lines requires a city permit. When the job also includes the main water line, we draw the plan and get the permit from the city. We schedule the work on a date that suits you, and the replacement itself takes 1 to 3 days, depending on the house. When the copper is in, the openings stay secured and uncovered until the city inspector checks the new lines for pressure, pipe type, and diameter, as the project requires. In San Jose, the grounding rod must be bonded to the water line before the job can pass.

With the first inspection approved, we patch the drywall. A second inspection follows once everything is closed, and it is usually a formality.

What Our Customers Say

Free On-Site Assessment

Before recommending a full replacement, we assess the condition and age of your existing piping to confirm whether a whole-house approach is actually necessary, or whether targeted repairs would address the issue just as well.

Product & Labor Warranty
Licensed, Bonded & Insured (C-36 #1139033)
Background-Checked, In-House Technicians
100% Satisfaction Guarantee
Fast Callback Times
Free, No-Obligation Estimates

Financing Available

Given the scope of a whole-house project, financing through Synchrony is available with $0 down and 0% interest when you pay the full balance within 6, 9, 12, or 18 months. You pay exactly the amount on our invoice. Subject to credit approval. See financing options.

What Happens to Walls and Flooring

Replacing every supply line in a home does require some access to walls and flooring, and we’re upfront about what that involves before the project starts. Our crews cut small, targeted openings in drywall to reach existing lines rather than removing entire walls, and in most homes the majority of the work happens in accessible areas like closets, crawl spaces, and attics rather than finished living space. Any drywall we open is patched as part of the project, though painting and texture matching are typically handled separately since paint color and wall texture vary from home to home.

Serving Sunnyvale and the South Bay

We provide whole-house water line replacement throughout Sunnyvale and nearby Menlo Park, Santa Clara, San Jose, and San Carlos. Contact us to schedule a free assessment of your home’s supply lines.

GALLERY

Recent Repipe Projects in the Bay Area

See how we’ve helped Bay Area homeowners upgrade their plumbing systems.

Frequently Asked Questions

How long does a whole-house water line replacement take?

The replacement itself takes 1 to 3 days, depending on the house. It starts with a free visit and a written price, and we schedule the work on a date that suits you.

Some access is needed, and we explain exactly what before the project starts. We cut small, targeted openings in drywall instead of removing whole walls, and most of the work happens in closets, crawl spaces, and attics. We patch the drywall we open. Painting and texture matching are usually handled separately.

Yes. Replacing the interior water lines requires a city permit, and the city inspector checks the new lines before the openings are closed. When the job includes the main water line, we draw the plan and get the permit for you.

Whole-house repiping is covered by a warranty of up to 25 years on all joints, fittings, and connections we install. The warranty transfers to the new owner if the house is sold, as long as JetPipe services the plumbing.

Yes. We offer financing through Synchrony with $0 down and 0% interest when you pay the full balance within 6, 9, 12, or 18 months, so you pay exactly the amount on our invoice. You get the written price for the full replacement first, then decide how to pay. Subject to credit approval. See financing options.

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