Here’s the thing most people get wrong about repiping: it’s not really about how old your house is. We’ve repiped homes that were 5 and 10 years old, and we’ve left plenty of older homes alone. What actually matters is what your pipes are made of and what water is running through them. We’re Plumbing Express, a dedicated repipe specialist serving Metro Atlanta since 1989, and we’ve done 180-plus whole-house repipes in and around Cobb County just this past year. Most of them started with a homeowner who noticed one thing, then noticed it again a few months later.
Below is the honest version of when a repipe actually makes sense — and, just as important, when it doesn’t. Because some of the things people panic about aren’t repipe problems at all.
What a whole-house repipe actually is
A common misconception is that we come in, rip out your old pipes, and drop new ones into the exact same spots. That’s not really how it works. A whole-house repipe means we install a brand-new water supply system for your home — new pipe, new valves, new fittings, with fresh hot and cold lines run to every fixture as one connected system, then tested before we call it done. We often follow a similar path to the old lines and remove pipe where we need the room, but much of the original piping is simply abandoned in place rather than pulled out. The point isn’t to chase the old system around your walls — it’s to give you a clean, new one. It’s a full reset, not a bandage.
The materials behind most of the calls we get are polybutylene, aging copper, and certain defective runs of PEX. If you’re not sure what’s behind your walls, that’s exactly the question to ask before a leak forces the answer. Not sure how to spot the gray plastic stuff? Here’s how to identify polybutylene in your own home.
The clearest sign: a pipe that’s known to fail, showing corrosion
If you already know what material your pipes are — and it’s one of the problem ones — that’s the strongest signal of all. Three materials drive nearly every repipe we do:
- Polybutylene. This one corrodes from the inside out. It can look exactly the same on the outside as the day it was installed while it’s been quietly eating away on the inside for 40 years. There’s no “wait and see” with polybutylene — if you have it, it should be replaced, whether it looks bad or not.
- Certain PEX (roughly 1995–2010). Some production runs and designs of PEX are known to be defective and are subject to class-action lawsuits — sometimes a bad manufacturing lot, sometimes a flaw in the material itself. You can usually identify your PEX by the code printed on the outside of the pipe and cross-reference it against the list of pipes named in those lawsuits. If you have one, you may start to see yellowing or fine cracking — and leaks won’t be far behind.
- Copper with pitting. Little pit marks forming on the outside of a copper line are the beginning of a pinhole leak. From there it follows a predictable path: a slow weep, then a drip, then a fine spray, then a steady stream. You’ll usually spot the first signs on horizontal pipes on the lowest level of the home — the basement or crawl space — though they show up in ceilings and walls too.
The strongest sign nobody tells you about: your neighbors are getting repiped
This is the one we push hardest, because it’s reliable and almost no one thinks of it. You’ll hear about it from a neighbor, from someone in the HOA a few blocks over, or on your neighborhood Facebook group — people start talking about repipes and leaks. And if your neighbors are getting repiped and you’re in a planned subdivision, the odds are your houses went up around the same time, often built by the same plumber, with the same pipe (with copper, it’s really the shared water doing the damage, not the plumber). What’s failing next door is very likely sitting inside your walls too.
Whole subdivisions in Marietta, Smyrna, Austell, and Powder Springs went up in the same building window with the same supply lines — and when it’s a bad batch of PEX, the failures cluster tightly on a single street. So if you’ve seen a repipe crew parked two doors down, that’s not a coincidence to shrug off. That’s a preview.
Repeated leaks in different parts of the house
One leak is a repair. But repeated leaks in different parts of the house are the most obvious, definitive signal that now is the time — because once the leaks start, the pipe has reached the point of failure everywhere, not just where it gave out first. There are multiple weak points all near failing at once.
Here’s the part homeowners don’t expect: fixing one leak can actually trigger the next one. Shutting the water off and back on and repairing a section changes the pressure in the system — the static pressure rises a bit afterward — and that often cascades into another leak somewhere else. You fix one today, and the next day (sometimes the same day) another shows up down the line. At that point, each repair is a Band-Aid — good money after bad — instead of solving the underlying problem for good.
Visible corrosion, water spots, and slab leaks
Look at the copper you can actually see — in the basement, under sinks, in the garage. Green or blue discoloration is corrosion working from the inside out. Then watch for the hidden stuff: water spots on ceilings and walls that start showing up with any regularity, bubbled paint, or a stain where a hidden line runs.
Slab leaks have their own tells. A hot-water line leaking below the slab can make a spot on your floor feel warm, and you may notice water pooling outside your foundation, where a slab leak has followed the path of least resistance out of the house. And a musty smell you can’t quite place often traces back to mold — moisture building up in the walls during the early, slow-weeping phase of a pinhole leak. None of these are a guarantee on their own, but stacked together they build a clear picture.
The Cobb County water angle
There’s a real regional pattern here, and it comes down to water chemistry. Copper pipe has a thin protective layer — a patina — on the inside. The water chemistry many homes on the Cobb County system see tends to strip that protective layer away over time, leaving the bare copper exposed and letting it corrode. That’s why the damage can be acute — it isn’t slow, decades-long wear so much as an ongoing chemical attack on the pipe. It’s why we see copper pitting show up in Marietta, Smyrna, Austell, and Powder Springs, and why even a relatively young home can end up needing a repipe.
It’s a pattern, not a curse. But if you’ve got copper lines on Cobb County water, it’s a reason to look sooner rather than later.
What we hear that is NOT a repipe sign
We’ll be straight with you, because it saves you money. The two things people call most worried about — rust-colored water and low water pressure — usually point somewhere else entirely.
Rusty or discolored water and low pressure can be a symptom of old galvanized pipe, but there’s very little galvanized left in Atlanta homes, and the pipe materials that actually fail and lead to a repipe don’t share those symptoms. More often, discolored water is just the aftermath of a water-main repair — new water flowing through the system — and it usually lines up with a boil-water advisory from your municipality. Weak flow is frequently one aerator, one valve, or a pressure regulator, not your whole system. If you want to rule those out first, understanding normal house water pressure is a good starting point. Repiping a house over a single clogged aerator would be an expensive mistake, and we’re not going to sell you that.
What repiping actually involves
The dread is almost always the same: the walls being opened up. Here’s how it really goes. We start by protecting your home — plenty of plastic sheeting over walls and furniture for dust control, and floor coverings to protect wood floors. Then we make strategic access cuts in the walls and ceilings only where the new lines need to run, and we set the drywall aside as it comes down. We run all the new pipe, connect fresh hot and cold lines to every fixture and shower valve, test the whole system, and turn the water back on — that’s the end of the plumbing phase. Along the way we install all-new emergency shutoffs and hose bibs, repipe the water heater, and add a new thermal expansion tank.
A typical Metro Atlanta home takes 2 to 5 working days, and you don’t move out — water is restored every single evening, so your home is never without it overnight. Because our drywall and paint restoration is done in-house by our own team, there’s no waiting weeks for a second contractor to schedule the finish work — which is where a lot of repipe timelines stretch out elsewhere. As one of our customers, Cindy A., put it in a verified Yelp review: “Each sheetrock cut-out was numbered and neatly stacked for the next day. All pipes were replaced and water was back on by dinnertime that first day.”
We use premium expansion and press-style fittings, not flow-restricting crimp connections, so you keep the pipe’s full inner diameter at every joint (you notice that at fixtures on longer runs like a master bath). We install premium PEX-A, PEX-B, and FlowGuard Gold CPVC.
A pattern we see all the time
Here’s a composite based on a pattern we see often, not one specific customer. A homeowner in a Marietta house put off calling for months — loved the home, dreaded the walls being opened. They’d already paid for two separate pinhole leak repairs in one year, one in a bathroom wall and one in the basement ceiling, and a musty smell had crept in. On the free in-home visit, we found early pitting corrosion in several other exposed sections, right in line with Cobb County water chemistry. They chose the whole-house repipe over another one-off patch. A few days later, drywall restored, water back every evening, they told us they couldn’t find where the work was done. The people who dread it most are usually the ones most surprised by how it goes.
Frequently asked questions
How do I know if my house needs repiping?
The clearest signals are knowing you have a problem pipe (polybutylene, defective-run PEX, or pitting copper), repeated leaks in different parts of the house, visible corrosion or water spots, and neighbors in your same-era subdivision getting repiped. It’s less about the age of the home than the material of the pipe and the water it’s on — copper on Cobb County water is the classic candidate, and even newer homes can qualify. A free in-home visit is how we confirm it, and we inspect your water service line too.
How much does it cost to repipe a house?
For most suburban Metro Atlanta homes, the middle 50% of our repipes — pipe, sheetrock, and paint matching included — land between $10,800 and $14,100. Some come in a bit under that, and larger or more complex homes can run quite a bit more (we’ve repiped homes up to 10,000 square feet). Price moves with home size and fixture count, number of stories, what’s being removed, access (slab, crawlspace, or finished basement), and paint-matching scope. The only way to get an exact number is a free in-home visit — and the number on the estimate is the number on the invoice.
How disruptive is a repipe, really?
It’s a real construction project, and our crew will be working throughout your home across both phases — so it’s not nothing. But it’s far more managed than most people picture. We open only the drywall we need to reach the lines, number each cut-out, and store the pieces by room. Water comes back on every evening, so you stay in your home the whole time, and our in-house crew restores the drywall and paint at the end. Most jobs finish in 2 to 5 working days with a full walkthrough.
What’s covered afterward
We back our work with a 10-year workmanship warranty on the pipe itself. It’s worth being clear here, because some homeowners assume “10-year warranty” covers everything in the wall, and it doesn’t: fittings, valves, and fixture supply lines carry a separate 1-year warranty. On top of our workmanship coverage, the manufacturers stand behind their materials too, with PEX-A at 25 years and FlowGuard Gold CPVC at 30 years.
Talk to an Atlanta repipe specialist
If you know you’ve got a problem pipe, you’ve patched more than one leak, or your neighbors are getting repiped, it’s worth a look before the next leak forces the decision. We offer same-day in-home estimates most days, a fixed-price quote, and no pressure to move forward until you’re ready. Call Plumbing Express at (404) 236-6535 or request a free plumbing quote and we’ll come out, inspect everything including your water service line, and give you a straight answer.
