Whole-Home Repipe

PEX-A or copper repipe that eliminates leaks, low pressure, and rusty water for 50+ years.

Typical timeline: 1–2 weeks
Whole-Home Repipe
Galvanized steel and polybutylene pipes fail. Not maybe — will. If your house has original galvanized (pre-1970s) or polybutylene (1980s–90s), you're on borrowed time. A repipe replaces every water line with PEX-A or Type L copper, restores pressure at every fixture, and stops the slow-leak damage that shows up as "mystery" high water bills and warm spots on your slab. We repipe in 3–5 days for most homes. We open drywall only where necessary, and we patch and paint back before we leave.

Materials

What we install vs. what corner-cutters use.

Pipe

What we install

PEX-A with expansion fittings (Uponor/Rehau) or Type L copper.

Common shortcut

PEX-B with crimp rings or push-to-connect fittings.

Why it matters: PEX-A is more flexible and freeze-resistant; expansion fittings can't pop off.

Routing

What we install

Attic-routed with drops to fixtures.

Common shortcut

Re-run through the slab.

Why it matters: Attic routing means future repairs are accessible.

Testing

What we install

Pressurize to 100 PSI, hold for 24 hours.

Common shortcut

Turn on and hope.

Why it matters: Pressure test finds every joint issue before drywall goes back.

Process

A predictable path — with real durations.

1

Layout & permit

1 day

Map new lines, pull plumbing permit.

2

Rough-in

2–3 days

Run new PEX-A or copper through attic and walls, connect at every fixture.

3

Pressure test & inspection

1 day

Pressurize to 100 PSI, city plumbing inspection.

4

Old pipe abandon & drywall patch

1 day

Cap and abandon old pipe, patch and texture drywall.

5

Paint prime & walkthrough

1 day

Prime patches, walkthrough with you.

Why us

Why homeowners pick Modern Builders for whole-home repipe.

We use PEX-A (Uponor or Rehau) with expansion fittings, not push-to-connect fittings that can pop off. Every joint is expansion-tooled and pressure-tested to 100 PSI before we close the walls. We re-route lines out of your slab wherever possible, running them through the attic instead. A slab leak on new pipe is still a slab leak — running through the attic means any future issue is 30 minutes with a saw instead of a jackhammer through your living room. We patch drywall, texture-match, and prime paint every opening. You provide the finish paint color; we spray it on.

FAQs

Answers before you ask.

PEX-A vs copper?+

PEX-A is more freeze-resistant, doesn't corrode, and installs faster. Copper is proven for 100+ years but more involved to install and vulnerable to slab leaks. We recommend PEX-A for most repipes.

Will I lose water service?+

Only during the switchover — usually 4–6 hours on one day. We coordinate so you know when.

How much drywall damage?+

Minimal — we open ceilings in the attic path and small squares at each drop. Every opening is patched, textured, and primed.

Will this fix my low water pressure?+

Almost always. Galvanized pipe corrodes internally and chokes flow. New pipe restores full flow.

Get a quote — we do it right.

Fixed-price proposals, real timelines, no corners cut. Tell us about your whole-home repipe project.

Request your quote