PEX, Copper, or CPVC: Which Should You Repipe With?
Most guides hand you three materials and tell you to choose. In practice, your house has already narrowed it down before you have an opinion. What's in your walls, where the new pipe has to run, and what your water is like all get a vote first.
If a plumber recommended PEX, you may be wondering whether that's what's best or just what's fastest to install. That's a fair question, and it deserves a straight answer rather than a brochure.
Here's what actually decides the material, and where you genuinely get a say. You'll see the four things that narrow the choice, then the three materials side by side. After that, we'll cover what Frisco homes change about the answer, since slabs and attics matter more here than in most places. We're Frisco plumbers backed by five decades in North Texas.
PEX, Copper, or CPVC: Which Should I Repipe With?
Most residential repipes today use PEX, but the right answer depends on your house more than your preference.
- PEX: Flexible, so it routes through finished walls with fewer joints and less demolition. It handles freezing better than rigid pipe. It can't be used where it's exposed to sunlight.
- Copper: The longest track record and the longest life, commonly cited at 50 to 100 years. It takes longer to install and can develop pinhole leaks in aggressive water.
- CPVC: Handles hot water well, but it's rigid and becomes brittle with age.
In a slab home, where the new pipe has to run often decides this before anything else. Planning a repipe? Learn about our repiping in Frisco.
Four Things That Decide This Before You Do
Before preference enters, four things narrow the field. Most of the time they narrow it to one or two.
What's in your walls now. Old galvanized pipe is the classic full-repipe trigger, since it corrodes from the inside and chokes water flow. Copper with repeated pinhole leaks points somewhere different than aging CPVC does. What's failing shapes what replaces it.
Where the new pipe has to run. This one carries the most weight. Rigid pipe needs straight paths and fittings at every turn, which means cutting more access holes in finished walls. Flexible pipe threads through existing cavities with far fewer openings. Fire blocking between stud bays and at the floor line is what makes those openings necessary at all.
Your water. Aggressive or acidic water is hard on copper and can cause pinhole leaks over time. In those conditions, copper may not reach the lifespan it's known for.
How long you're staying. Copper's longer life matters more to someone planning twenty years in the house than five. It's a horizon question, and only you can answer it.
Where You Genuinely Get a Say
Once those four narrow things down, you're often choosing between two materials rather than three. Usually that's PEX and copper. Here's where your preference actually matters.
Exposed runs rule out PEX. Sunlight is PEX's main weakness. Anywhere the pipe would sit in daylight without a sleeve, it isn't the right material.
Visible runs can be an appearance choice. In a garage, utility room, or unfinished basement, you can see the pipe. Some people prefer how copper looks there. That's a legitimate reason to pick it.
Your tolerance for wall repair. If keeping drywall intact matters more to you than material preference, that pushes toward flexible pipe.
There's one question worth asking any plumber who quotes you. What would you put in your own house, and why? A plumber with a real answer will explain the reasoning behind it, not just name a material.
We're There When You Need Us!
877-746-6855 
The Three Materials, Side by Side
Here's how the three compare once your house has narrowed the field.
PEX. The most widely used repipe material in homes today. It's flexible, so it bends through wall cavities instead of needing a fitting at every corner. Fewer joints means fewer places a leak can start. It resists corrosion, handles freezing better than rigid pipe, and is commonly rated at 40 to 50 years. Its one real weakness is sunlight.
Copper. The longest track record of any residential pipe material, commonly cited at 50 to 100 years. Building codes accept it everywhere, and it resists bacterial growth. Installation takes longer, since every joint gets cut, fitted, and soldered. In acidic or aggressive water, it can develop pinhole leaks and fall short of its usual lifespan.
CPVC. Handles hot water well and is easier to work with than copper. It's rigid, so it needs fittings at corners and more access points in finished walls. Its joints are solvent-cemented, which is less forgiving than other connections. Over the years, it tends to grow brittle. CPVC still shows up in existing homes, though most repipes today use PEX or copper.
One caution on those lifespan numbers. They vary by source, and they depend heavily on your water conditions and the quality of the installation. Treat them as general ranges, not guarantees.
What a Repipe Actually Disturbs
The material question is really a disruption question underneath. Here's how that plays out in your house.
Rigid materials need more access points cut into your walls. Every corner takes a fitting, and every fitting takes room to work. That means more holes, and more drywall to patch afterward.
Flexible pipe threads through existing wall cavities. It can often follow a path that rigid pipe can't, with fewer openings cut along the way. Less demolition means less repair work behind it.
Questions to ask your plumber:
- How many access holes will this take?
- What wall repair is included, and who patches?
- Does anyone paint, or is that on me?
- How long will my water be shut off?
- Can we live in the house while this happens?
Those last two shape your week more than the material does. Get real answers before the work starts.
Frisco Homes: Slabs, Attics, and February
Frisco sits on slab foundations, and that changes how a repipe gets done here.
The pipe usually goes up, not down. Chasing supply lines under a concrete slab means breaking concrete. So repipes in slab homes are often rerouted overhead, running through the attic and dropping down inside walls to each fixture. That routing rewards flexible pipe, which is a large part of why PEX shows up on so many Texas repipe quotes.
Attics get hot here. Any pipe running through a North Texas attic spends summer in serious heat. Ask how the new lines will be insulated and protected up there. It's a fair question, and the answer tells you something about the crew.
February still matters. During Winter Storm Uri in 2021, DFW stayed at or below freezing for 139 hours straight. No pipe is freeze-proof. But PEX tolerates the expansion that splits rigid pipe, which is worth weighing for lines running through an attic.
A slab leak is usually what starts this. Most Frisco homes aren't old enough for aging galvanized pipe. What brings up repiping here is a slab leak, and the question of whether to chase the leak or reroute around it. Our slab leak repair is where that conversation usually begins.
Do You Even Need a Full Repipe?
Worth asking before you pick a material at all. Not every leak means the whole system is done.
One leak in an otherwise sound system is often a repair. A pipe that failed because something hit it, or because of one bad fitting, doesn't say much about the rest of the house.
The pattern that points to a repipe is different. Repeated leaks, in different places, over a stretch of time. That's a system telling you it's reaching the end, not a single unlucky spot.
Ask the plumber who recommended it one question: what did you see that led to this? A good answer describes the condition of the pipe, where the failures have been, and why they expect more. A vague answer is worth a second opinion.
Which Material Fits Your House
Thinking about a repipe and not sure which material fits? Our Frisco plumbers will look at what's failing first. Then you'll get a straight recommendation and the reasoning behind it, with transparent pricing before any work begins. Call (214) 216-1727 for repiping in Frisco.
We answer calls 24/7. Want to see what your Frisco neighbors say first? Read our Frisco Google reviews.
Business Address: 4645 Avon Ln Suite 260, Frisco, TX 75033
We're There When You Need Us!
877-746-6855
Frequently Asked Questions
A plumbing maintenance plan includes an annual inspection of your home's plumbing system. That covers your water heater, kitchen, bathrooms, toilets, faucets, exposed lines, drains, and washing machine connections. The Berkeys MVP membership also includes a water heater flush at no charge.
Have your plumbing inspected once a year. That timing catches wear before it becomes a failure, and it fits the pace at which most problems develop. Homes with older water heaters or added equipment benefit most from staying on schedule.
Yes, flushing your water heater is worth doing. Minerals settle at the bottom of the tank and make the heater work harder to do the same job. A flush clears that sediment out and is part of every annual inspection.
New homes need less plumbing maintenance, at least at first. Fixtures and the water heater are usually still under warranty, and there's little wear to find. Start paying closer attention once your water heater passes the halfway point of its life.
Yes, you can cancel a maintenance plan. Berkeys memberships run as a 12-month subscription that renews automatically, so check the terms for how notice works. Ask before you sign if the commitment length matters to you.