Main Water Line Installation Experts in the Bay Area

Copper Installs. Code-Compliant Permitting. Done Right the First Time. Licensed & Local.

Get a Free Estimate + 10% OFF Repipe Services.

15-Year Warranty on Whole-House Copper Repiping
If anything leaks - we come back, we repair it, we pay for it. No service call, no invoice, no questions.
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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

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.

Call JetPipe Plumbing: (650) 495-4570

Main Water Line Install Options to Fit Your Home's Needs

We install high-quality, long-lasting water lines that deliver strong, consistent pressure and clean, reliable water flow throughout your entire house.

Whole House Water Repiping

Complete replacement of all water supply pipes throughout your home, from the main line connection to every faucet, shower, and appliance.

Main Water Line Installation

New water line installation from the municipal connection to your home — for new construction, ADUs, or properties without an existing service line.

Partial Water Line Repiping

Selective replacement of damaged or corroded sections, targeting specific problem areas like a single bathroom, kitchen, or leaking branch line.

What We Do

Planning a New Build or Adding an ADU? Start With the Right Water Line

Installing a new main water line is one of the most consequential decisions in a construction or ADU project. The line you put in determines water pressure, flow capacity, and long-term reliability for everything connected to it. We install copper as our default material: it’s proven to last 50+ years, holds up against Bay Area water chemistry, and meets all local code requirements without exception. For specific site conditions, we also work with PEX and HDPE. Our licensed plumbers handle everything from underground routing and permit procurement to final inspection and site restoration with no subcontracting on core work.

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Main Water Line Installation

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Pressure & Flow Assessment

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Trench & Trenchless Install Options

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Hot & Cold Line Tie-Ins

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Full Permit & Inspection Handling

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Connection to Municipal Supply

Financing Options Available
Flexible payments

Financing Options Available

With Promotional Financing From Most Valuable Plumber, Major Purchases Don’t Have To Wait. * Get What You Want Now And Pay Over Time.

About Us

Your Local Water Line Installation Team — Based in Sunnyvale

We’re a locally owned plumbing company serving Sunnyvale, Mountain View, San Jose, and surrounding communities. We’ve installed main water lines across Bay Area soil types — clay, fill, and rocky terrain — and we know what local inspectors expect. From pulling permits to the final walkthrough, we manage the entire process so you don’t have to coordinate multiple contractors.

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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

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Licensed South Bay plumbers.
Honest pricing, no surprises.

Why Choose JetPipe Plumbing

New Installation vs. Replacement — What Do You Need?

Not every waterline project is the same. We’ll assess your site and recommend the right approach — new install, replacement, or repair.

Feature

New Installation

Full Replacement

Cost
Varies by line length and depth
Higher initial investment
Scope
New line from meter to structure
Replaces existing line in full
Best For
New construction, ADUs, no existing service
Corroded, undersized, or failing lines
Longevity
50+ year solution
50+ year solution
Disruption
Trenching or trenchless boring
Full trench or trenchless install
Timeline
1–3 days depending on access
1–3 days depending on access

Still unsure?
Request a Free Inspection & Personalized Quote — no pressure.

What Our Customers Say

Why Homeowners Trust JetPipe

Water Line Service Done Right — Guaranteed

We understand that water line problems can feel stressful and expensive. That’s why we focus on clear communication, quality work, and standing behind what we do.

Product & Labor Warranty

Licensed, Bonded & Insured (C-36 #1139033)

Background-Checked, In-House Technicians

100% Satisfaction Guarantee

Fast Callback Times

Free, No-Obligation Estimates

Service Areas

Serving the Entire South Bay Area

We proudly serve homeowners and businesses in:

Don’t see your city?
Call us at (650) 215-4545 or (650) 382-4219 — we probably cover it!

Need a New Main Water Line Installed?

From expert main water line installations and complete replacements to reliable repairs, we handle it all with quality workmanship and upfront pricing.

GALLERY

Recent Repipe Projects in the Bay Area

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

CONTACTS

Let’s Fix Your Plumbing — The Right Way

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Water Line Questions? We've Got Answers.