What to expect when repiping your Orange County home: timeline, prep, and what is included.

The short version: pipe in a day, water off during work hours, walls patched.

On most homes, all the new piping goes in on day one, single-story or two. The water is off while the crew is working and back on before they leave, pressure tested. Day two is usually the city inspection, sometimes with a day in between for the permit office. Day three the crew is back to patch and texture the walls and clean up. Large homes with a lot of bathrooms sometimes need an extra day of pipe work and an extra day of drywall, and we know that before anything starts, so you'll hear it from us up front. Copper takes longer, because every turn is a soldered joint. Paint is the one finish step we quote separately.

Houses have patterns. Once you've seen enough of them, you start to recognize the signs.

Most people don't plan a repipe months ahead. In the last three years, more than half of the homes we've repiped started with a leak-detection or slab-leak visit, and most of those homeowners decided within about a week. If the leak is under the floor, slab leaks in Orange County covers how we find it and what the choices are.

Before you book: how to compare three quotes.

Get three quotes, and make sure they cover the same job. A low quote with the walls left open is not the same job as a full quote with the walls textured.

Ask every company the same list, in writing:

• What pipe, exactly? Brand and type, not just "PEX."
• Are the permit, the inspection, and the patch and texture included? Is paint?
• New shutoff valves, hose bibs, water heater connections, main shutoff: which are in the price?
• What does the warranty cover, and for how long, on the pipe and on the labor?
• Did anyone walk the house? Phone quotes scatter; walkthrough quotes land close together.

What is included, and what is not.

The week before: how to get the house ready.

There's less to do than people expect. The crew protects floors and covers work areas. Your job is access and a little planning.

• Clear under every sink. Everything out of the cabinets.
• Clear a path to the water heater, the main, and the attic hatch.
• Take pictures off the walls near the bathrooms and the kitchen.
• Find your main shutoff and try it. If it's stiff, tell us; a new one is part of the job.
• Plan for pets, and for anyone home during the day who needs quiet.
• Don't book the painter yet. Paint comes after the inspection and the patch visit, and those dates move.

Expert Tip

The night-before list. Fill a few jugs for drinking and coffee, and a bucket for flushing. Run the dishwasher and a load of laundry. Put the toothbrushes and the coffee maker where the crew won't be.

Day by day: what the crew does.

Two homes we see all the time: a 1976 single-story slab home in Mission Viejo, three bedrooms, two baths, and a 1989 two-story in Rancho Santa Margarita, four bedrooms, three baths. Both getting PEX.

The surprise is how alike the two jobs are. The difference between them isn't the second story. It's the year the house was built.

From the Field

Jason is a planner. Detail-oriented, organized, not an ounce of procrastination in him. He knew his house needed a repipe, because his neighborhood had the same plumbing history and he'd had his own scares. What unsettled him was the part he couldn't control: when does it start, when is it done, what happens in between. That's how most people feel. Plumbing isn't their specialty, and they've heard the stories.

Having done this for almost twenty years, I could look Jason in the eye and tell him: here's where we start, here's what happens, here's when it's finished. He left for work a few minutes after the crew arrived. At 4:38 that afternoon I called him. "Is everything okay?" Everything's fine, Jason. I'm sitting next to your pool, petting your dog. I let that hang for a second before I told him we were done. All the new pipe was in before he got home. It was a single-story, so the pipe went in a little faster than most, but that's the shape of the day we aim for. Over the next couple of days we set up the city inspection and came back for the drywall. Jason and I still see each other at Rams games now and then. He roots for the Rams. I'm a 49ers guy. We manage.

Monica wrote in July 2026 that the crew arrived early on a Tuesday, ran all the new pipe, and cleaned up by five; the next day they were back to patch. That's the shape we aim for. It is not a promise.

When it takes longer than a day.

A very large home with a lot of square footage and a lot of plumbing, where the pipe work itself needs a second day. Copper, where every turn is a soldered joint. An asbestos result that brings in an abatement company first. Smooth-coat drywall, which takes real time to patch invisibly. An inspection that lands on Monday because the pipe work finished Friday. When a job runs long, it's usually the drywall side, not the pipe.

Most of our recent jobs wrapped in one to three working days, and about one in five ran a week or longer on the calendar, counting the inspection and the patch visit. The longest, a large custom home in Irvine, took sixteen days. Size does that. A typical tract home does not.

Can you stay in the house?

Yes, most families stay. The crew shuts the water off in the morning, so for the work day the kitchen and the showers are out. Toilets get one flush each, because the tank is still full when the water goes off, and the crew keeps a couple of five-gallon buckets on hand to refill them. Work areas are covered and taped off. There's dust, and noise from the cutting and the attic. By late afternoon the water is back on and the house is yours again.

If you work from home, pick a room away from the bathrooms for your calls, or plan to take them elsewhere for the day. If you have pets, we'll ask about them first thing. We'd rather Garfield not slip out behind a plumber, so we suggest one closed room, and the crew hangs a sign on that door so nobody opens it. And plenty of people stay just to watch. We love it when they do. We're proud of this work, and it's a good day to show it off.

When we suggest a night or two somewhere else:

• A very large home where the pipe work itself runs two days.
• A single-bathroom home, because the only bathroom is a work area for a day.
• Anyone sensitive to dust or who needs quiet: a newborn, someone on oxygen.
• Abatement days, when the abatement company seals and clears the work areas before we start.
• A slab leak that already soaked things. With dehumidifiers running and flooring up, some families take a hotel.

If you'd rather be out, tell us. An empty house lets the crew work every room at once, and the day goes faster.

Same street, same era: what we see in your neighborhood.

A lot of the homes around here were built in the same era. Whole streets went up in a year or two, from the same plans, with the same pipe, and they've been drinking the same water since.

Nearly one in five homes we repipe is on a street where we had already repiped another home. When a second home follows the first, about six times out of ten it happens within 18 months.

Laguna Hills sits at 1977, Laguna Niguel at 1984, and Irvine's older villages at 1979; the Great Park side of Irvine was built with PEX from the start.

That's why we can usually say what's behind the walls before we open them.

From the Field

I remember one like it was yesterday. Water coming through a ceiling onto the dining room table. I opened the ceiling, found the leak, fixed it. Quick one. Then I put my flashlight into the hole I'd just made and saw green marks up and down the copper, and one spot that looked like it was sweating. I showed the customer the photos and recommended a repipe, or at least the other spots. He passed. The next day he called, sure my repair was leaking. It wasn't. The sweating spot had started spraying a fine mist. I fixed that one too, replaced a longer run at no charge, and left hoping that was the end of it. About a month later, the kitchen. Water up through the floor, the wood buckling, the cabinets wet. He felt terrible, because we'd talked about the age of the house, the water test, the corrosion in three places. Now it was a kitchen remodel and an insurance claim on top of the repipe. Almost twenty years of that story, over and over, is why I tell people to get ahead of the leaks instead of waiting for the next one.

Slab homes: why the new pipes go through the attic.

Yes, you can repipe a house on a slab, and in south Orange County that's most of them. The tract builders poured a concrete slab and ran the water lines under it. When one leaks, nobody jackhammers the floor. We cap the old lines where they come up out of the concrete and run a new system overhead.

The new lines go up into the attic, across the house, and drop inside the walls to each fixture. On a two-story, the downstairs drops run through interior walls and closets. Hot lines get insulated. The old pipe stays under the floor, dry and empty. Not one hole in the floor.

The era sets the pipe: galvanized in the pre-1970 homes, copper through the 1970s, 80s, and 90s tracts, PEX in the newest neighborhoods. Which pipes your home likely has by year built has the city-by-city table, and why copper pinhole leaks happen here first tells the water side of the story. Copper or PEX for the new system is a separate decision, laid out in copper or PEX for your repipe.

What happens to your walls.

Openings, yes. Holes everywhere, no. On a typical single-story, expect roughly 20 to 30 openings: one behind each shower and tub valve, one at any sink or toilet the crew can't reach through the cabinet, one at the water heater, one at the main, and small ones where a line drops out of the attic. That sounds like a lot until you see them. They're cut square so the patch goes back flat, and our plumbers are multi-trade, so they know framing and cut fewer openings than most repipe crews.

The patch waits for the inspector, on purpose. The city needs to see the new pipe, the fittings, and the strapping with the walls open. After sign-off, a patch crew closes every opening and textures it to match.

Where a line can't fit inside an existing wall, the crew builds a small box, a bump-out, and we flag those at the walkthrough. On homes built before 1978, the joint compound in the drywall can contain asbestos, so a third-party environmental company takes samples and tests for lead and asbestos before anything is cut. About one in eight of those homes comes back positive. When that happens, we don't cut the drywall. We mark and number exactly where every opening needs to be, and an abatement company makes the cuts in one visit. Marking those walls precisely is a skill in itself: guess wrong, and the abatement crew has to come back and start over. Testing and abatement are billed separately from the repipe, and when a leak has opened an insurance claim, they're usually covered by it.

Hot lines in the attic get insulated. The old copper comes out wherever we can reach it and goes to recycling; the runs under the slab stay put, capped and dry. The water heater almost never has to move. If you've been wanting it out of the hallway closet and into the garage, a repipe is the cheapest time to do it, because we're already running new pipe.

Permits and the city inspection, city by city.

Every Orange County city requires a plumbing permit for a whole-house repipe and sends an inspector before the walls close. We pull the permit and meet the inspector. The surprise: in most of south county, the inspector isn't a city employee. Mission Viejo, Laguna Hills, Rancho Santa Margarita, and Laguna Niguel contract their building departments to Charles Abbott Associates, a Mission Viejo consulting firm. Lake Forest contracts with InterWest Consulting Group. Irvine runs its own.

Every building department is a little different. Some take the request online, some want us in person, some ask for a site plan and some don't. Fees vary too, roughly $380 to $900 for a repipe on its own, and higher when a water heater or a filtration system rides on the same permit. Ours is written into the quote. The inspector checks that the pipe is strapped and protected, that the hot lines are insulated, that nail plates guard every stud the pipe passes through, and that no PEX is left exposed to sunlight.

HOA and CC&Rs.

The first question we ask is: do you pay your own water bill? If you do, the pipes are yours, not shared with the community, and the repipe is a building-department matter, not an HOA matter. As long as the work doesn't touch a common area or change the outside of the home, most homeowners go ahead without involving the association at all. Because the neighbors are close, it's still a courtesy to let them know the crew is coming. In all our years here, we haven't had an association push back on pipe material; if anything they prefer PEX.

Attached homes and condos are different. Even when the pipes are yours, in some rare cases the main line passes through a neighbor's garage or wall. We know that before we start, and we'll tell you so you can plan. When it applies, a good plumber gets on the phone with the property management company and shares the plumbing plans before touching anything.

After the job: warranty, noise, and the old copper.

Before the crew leaves for the last time, walk the house with them, run every fixture hot and cold, and flush every toilet. Then ask for two things in writing: the manufacturer's warranty on the pipe and fittings, and our warranty on the workmanship.

Noise: lines in an attic can be heard when someone showers upstairs. Insulating the hot lines helps with heat and with sound; Henry wrote in April 2025 that the crew insulated the hot water lines and the flow was great.

The old copper under the slab stays put, capped and dry. The sections removed from the walls leave with the crew for recycling unless you'd like to keep them. And a smart leak detector with an automatic shutoff on the main is cheap insurance, new pipe or old.

The bottom line.

Done right, it's a short job: one to three days of pipe work on most single-story homes, water off only during work hours, a city inspection, then patch and texture, then your painter. Most families stay home, and the permit, the inspection, and the walls are part of the job with us.

One more thing, from someone who has been in a lot of homes. Even with a solid plan and a crew you trust, having plumbers in your house is an inconvenience. The easy day is the one where you're on the couch not thinking about plumbing at all. But there are two kinds of plumber visits: the one you planned, and the one at two in the morning because you didn't. If you're reading this, you're choosing the first kind. That's not really about plumbing. It's about protecting your home and your family from the kind of damage water does when nobody's watching. Inconvenient for a couple of days, and a good decision.

If you're mid-leak, or just tired of watching for the next one, call (949) 328-6002 or schedule a visit. We'll walk the house, count the fixtures, and give you the straight version for your street.