Whole-House Repiping

What a Whole-House Repipe Actually Replaces

A repipe replaces the pressurized water supply lines in the building. That means the pipe that runs from the main shutoff to the water heater, and the hot and cold lines that feed every sink, tub, shower, toilet, washer and ice maker. In most jobs we also replace the stop valves under fixtures and the shutoff where the water enters the house.

It does not include the drains. Waste and vent piping is a separate system with its own problems, like root intrusion, cast iron scaling and bellies in the line. If your issue is slow drains or sewer backups, that’s covered on our sewer line repair and drain cleaning pages. The line from the meter to the house is also separate. If that pipe is failing, we can replace it as part of the same project, and you can read more on our water line repair page.

Signs Your Home Needs Repiping

One leak doesn’t mean you need a repipe. A pattern does. These are the things we look for:

• More than one pinhole leak in copper within a year or two
• Gray polybutylene pipe at the water heater or under sinks, often stamped PB2110
• Rusty or brown water when you first open a tap, especially with galvanized steel
• Pressure that has dropped over time at several fixtures, not just one
• White or yellowed CPVC that cracks when someone bumps it or tightens a valve
• Water stains on ceilings under attic lines, or damp spots along slab walls
• An insurer or home inspector flagging the plumbing type or age

If you’re not sure where water is going, start with leak detection. Finding the actual source tells us whether it’s one bad section or a system that’s giving out.

Pipe Materials in Southwest Florida Homes and How Each One Fails

Southwest Florida grew in waves, so the pipe in your walls usually tracks the decade the house was built. Remodels and past repairs can mix materials, so we always confirm what’s there before we quote anything.

Galvanized steel

Galvanized was common in older homes, roughly through the 1960s. The zinc coating wears off from the inside, and the steel rusts. Scale builds up until a half-inch pipe has a much smaller opening. You see low pressure, discolored water and leaks at threaded joints. There isn’t a real fix for corroded galvanized beyond replacing it.

Polybutylene

Polybutylene is the gray plastic pipe installed widely from about 1978 into the mid-1990s, and Florida got a lot of it. Research linked its failures to oxidants in treated water attacking the plastic and its fittings from the inside. Failures piled up enough that manufacturers faced a large national class action, settled in 1995, and the pipe was dropped from building codes. The claim deadlines under that settlement have long passed. Today many Florida insurers won’t write a policy on a home that still has polybutylene, or will only do it with conditions. In older neighborhoods around Cape Coral and Lehigh Acres, insurance is often what finally pushes an owner to repipe.

Copper

Copper is still good pipe, but it isn’t immune to trouble. The common failure is pinhole leaks. They start as small pits inside the pipe and work outward. Causes include water chemistry, disinfectants like chlorine and chloramine, high water velocity, poor grounding and flux left inside joints during the original install. Once a copper system starts pinholing in several places, the rest of the pipe usually has the same wear. Soldered joints in the attic also take years of heat cycling.

CPVC

CPVC was used a lot in Florida homes built in the 1990s and 2000s. It’s rated for hot water, but it tends to get brittle as it ages, especially where it runs hot or sits in a hot attic. Old CPVC can crack from very little stress: a plumber turning a valve, a stubbed fitting, a pipe that shifts when the water hammers. Certain chemicals, including some firestop products and caulks, can also damage it. Brittle CPVC is the reason a simple faucet swap sometimes turns into a flooded cabinet.

Repair or Repipe: How We Help You Decide

We’d rather fix a single leak than sell a job you don’t need. A spot repair makes sense when the failure has a clear local cause, like a nail through a line, a failed fitting or one section that got damaged. Those are routine plumbing repairs.

A repipe makes more sense when:

• The pipe material itself is the problem, as with polybutylene or corroded galvanized
• You’ve had repeated leaks in different parts of the house
• The pipe breaks or crumbles when we cut into it for a repair
• Your insurer requires replacement to write or renew the policy
• You’re already opening walls for a remodel

We’ll show you what we found, including photos of the pipe where we can get to it, and explain the tradeoff in plain terms. Sometimes the answer is a partial repipe, such as replacing just the attic runs or just the hot side.

Why We Usually Repipe With PEX

PEX is cross-linked polyethylene tubing. It’s flexible, so it can be pulled through attics and walls in long runs with far fewer fittings than rigid pipe. Fewer fittings means fewer places to leak. It doesn’t pit like copper or get brittle like old CPVC, and it handles expansion better when water hammer or pressure spikes hit the system.

Because it bends, we can often route it through smaller access openings, which means less wall damage and a faster job. It’s also approved for potable water under the plumbing code used in Florida.

Where PEX has limits

PEX isn’t right for every spot. It breaks down in sunlight, so it can’t be left exposed outdoors, and manufacturers limit how long it can sit in UV before it’s covered. Exterior runs need to be protected or done in another material. Code and manufacturer rules also limit how close PEX can run to a water heater, so the connections right at the heater are usually metal. It can be chewed by rodents in attics, and it has to be supported properly so it doesn’t sag. Some owners still prefer copper, and we can talk through that option too.

PEX-A vs PEX-B

Both types are cross-linked polyethylene. The difference is how the cross-linking is done in manufacturing, and that changes how the pipe behaves and what fittings it takes.

PEX-A is the most flexible. It uses expansion fittings: the end of the pipe is stretched with a tool, a fitting is inserted, and the pipe shrinks back down tight around it. The inside diameter at the fitting stays close to the pipe’s own size, so there’s less flow restriction. PEX-A can also recover from kinks with heat in many cases.

PEX-B is stiffer and typically costs less. It uses crimp or clamp rings over an insert fitting. Those fittings sit inside the pipe, so they narrow the opening a bit at every joint. Done right, it’s a durable, code-approved system.

The fittings have to match the pipe and its standard. We don’t mix systems in ways the manufacturer doesn’t allow. On your quote, we’ll tell you which type we plan to use and why.

Routing New Lines in Slab Homes

Most homes here are built on a concrete slab. In many of them, the original supply lines were run under or through the slab. When those lines leak, you get slab leaks, and going back under the concrete means jackhammering floors.

In a repipe we usually abandon the old lines in place and run the new ones overhead through the attic, then drop them down inside interior walls to each fixture. That keeps the new pipe accessible and out of the slab. Attic runs in Florida get hot, so we plan routes to keep lines well supported and insulated where it makes sense, and away from spots where people walk or store boxes.

Manifold systems

Some repipes use a manifold. That’s a central header, usually near the water heater or in a utility space, with a dedicated line running out to each fixture or group of fixtures. Each line gets its own shutoff, so you can isolate a single bathroom without turning off the whole house. A manifold also balances pressure better when two fixtures run at once. The other approach is a trunk-and-branch layout, which uses less pipe. We’ll pick the layout based on the house, not a formula.

What the Job Looks Like, Step by Step

Every house is different, but most repipes follow the same path. A typical single-family repipe often takes a few days, depending on size, access and inspections. We’ll give you a realistic schedule for your house before we start.

Prep and permit

Repipes need a plumbing permit from the local building department in the areas we serve. We pull it before work starts. On day one we protect floors and furniture along our work path and plan where access openings will go.

Shutoffs and access openings

We shut off the water at the main and cut small, planned openings in drywall where lines drop to fixtures. Where we can work from the attic or a closet, we do. Patching those access openings is part of planning the job, and we’ll go over who handles patching and paint before we start.

Running lines and making connections

We run the new hot and cold lines, secure them, and connect them to new stop valves at each fixture and to the water heater. Old lines are capped and abandoned or removed where they’re accessible.

Pressure test and inspection

Before anything gets closed up, the new system is pressure tested to confirm it holds. The building inspector then checks the work. Once it passes, we restore water, flush the lines, check every fixture for leaks and flow, and walk you through the new shutoffs.

Living in Your Home During a Repipe

Most people stay home during a repipe. We plan the work so the water is off during working hours and back on in the evening whenever we can. There will be a stretch at the end, while we tie the new system in, where the water is off longer. We’ll tell you when that’s coming.

Expect noise, some dust near access openings and people in and out of the attic. It helps to clear the areas under sinks, move items away from walls where we’ll be working, and plan for pets. If someone in the house works from home, let us know and we’ll try to schedule around it.

Insurance, 4-Point Inspections and Home Sales

In Florida, older homes often need a 4-point inspection to get or renew homeowners insurance. The inspector looks at the roof, electrical, HVAC and plumbing. On the plumbing side, they note the type of supply pipe, its approximate age, any active leaks and the condition of the water heater. Polybutylene and galvanized are common red flags, and some insurers also look closely at older copper or other materials depending on age and condition.

If a 4-point turns up a problem pipe, we can inspect the system, give you a repipe proposal and provide the documentation you’ll need after the work is permitted and finaled. Buyers and sellers run into this too. A home with a documented, permitted repipe is simply easier to insure and sell. Check with your insurance agent on what they require, since rules differ by company.

Repiping During a Remodel

If you’re gutting a kitchen or a bathroom, the walls are already open. That’s the cheapest time to replace old supply lines, at least in that part of the house, and it’s often the right time to do the whole house. It’s frustrating to finish a new bathroom and then open the ceiling a year later for a leak in the old pipe.

We coordinate repiping with remodel plumbing, including bathroom and kitchen rough-ins, so the new fixture layout and the new pipe go in together.

Condos, Townhomes and Multi-Unit Buildings

Repiping a condo or townhome has extra steps. Many buildings share risers or have a main shutoff that affects other units, so the association usually needs to approve the work and the timing. There may be rules about work hours, elevator use, contractor paperwork and where pipe can run.

We’ll work with your association or property manager on those details. For owners of small apartment buildings or mixed-use properties, see our commercial plumbing page.

Water Heater and Main Shutoff Upgrades

A repipe is a good time to deal with the water heater. If it’s near the end of its life, replacing it while the water is off anyway saves a second shutdown. Some owners use the repipe to switch to a tankless water heater, which changes the piping at the heater. We can handle either at the same time as the repipe.

We also recommend replacing the main shutoff valve if it’s old or seized. A main valve you can actually turn by hand matters the next time anything leaks. Adding a pressure regulator or expansion tank, where needed, can also protect the new pipe and fixtures.

When to Call HomeFlow Plumbing

Call us if you’ve had repeated leaks, found polybutylene, got a 4-point report back with plumbing notes, or you’re planning a remodel in an older home. We repipe homes across Lee, Charlotte and Collier Counties, including Fort Myers, Cape Coral, Naples, Bonita Springs, Lehigh Acres, North Fort Myers, Estero, Sanibel, Alva, Punta Gorda, Port Charlotte, Golden Gate and Marco Island. See our full list of service areas.

Call (239) 518-4198 or send a request through our contact form. We’ll look at what’s in your walls and tell you honestly whether it needs a repair or a repipe.