Quick answer: A whole house repipe is the job of replacing all of the water supply lines that carry fresh water through your home. These are the pipes feeding your sinks, showers, tubs, toilets, and appliances. A whole house repipe is usually done when old pipes corrode, leak often, or lower your water pressure, and it is different from sewer or drain pipe repair.
If your faucets give you rusty water or weak flow, the pipes inside your walls may be wearing out. This guide explains what a repipe is, the warning signs, how the work is done, what it costs, and how it compares to epoxy pipe restoration.
Key Takeaways
- A whole house repipe replaces your home’s water supply lines, not your sewer or drain lines.
- Common warning signs include rusty water, low water pressure, frequent leaks, and old galvanized pipes.
- Most homes use PEX or copper pipe for the new system, each with its own strengths.
- A repipe in an average home often takes a few days, depending on the size and layout.
- For some pipes, epoxy restoration (relining) can be an alternative to full replacement.
What is a whole house repipe?
A whole house repipe replaces the water supply pipes throughout your entire home with new pipe. Supply lines are the pipes that bring clean, pressurized water to every fixture and appliance you use.
Over time, pipes corrode, build up rust and scale, and start to leak. When the problem is spread across the whole system instead of one spot, replacing everything at once is often smarter than fixing leak after leak.
This is a water-line job. If your concern is a clogged, cracked, or collapsing sewer or drain pipe instead, that is a different repair. You can compare those options in our guide to relining vs. replacing drain and sewer pipes.
What are the signs you need a whole house repipe?
The clearest signs you may need a whole house repipe are rusty water, low pressure, and repeated leaks. One of these can point to a small problem, but several together usually mean the whole system is aging out.
Watch for these warning signs:
- Rusty, brown, or discolored water, especially when you first turn on a tap.
- Low water pressure that shows up at more than one fixture.
- Frequent leaks or pinhole leaks in the same pipe runs.
- Old galvanized steel pipes, common in many older Arizona homes.
- Visible corrosion or rust stains on exposed pipe and fittings.
- A metallic taste or odd smell in your tap water.
If you suspect a hidden leak inside a wall or under a slab, professional leak detection services in Phoenix can pinpoint the problem before any pipe is opened up.
Why are older Phoenix homes more at risk?
Older Phoenix homes are more at risk because many were built with galvanized steel pipe, which corrodes from the inside as it ages. Galvanized pipe can last for decades, often around 40 to 50 years, but it eventually rusts and narrows, which chokes your water flow.
Phoenix also has very hard water. The City of Phoenix reports high levels of dissolved minerals like calcium and magnesium in its drinking water. (phoenix.gov water quality report) Hard water leaves scale inside pipes over the years, which can speed up buildup and add stress to an older system.
How does the whole house repipe process work?
The whole house repipe process follows a clear set of steps, and a skilled crew keeps the disruption low. Here is what usually happens, in order:
- Inspection and quote. A technician checks your pipes, water pressure, and layout, then gives you a written estimate.
- Planning and prep. The crew maps the pipe routes and protects your floors, walls, and belongings.
- Small, careful access points. Workers open only the spots they need to reach the pipes, not whole walls.
- New pipe installation. Fresh PEX or copper lines are run to every fixture and connected.
- Testing. The new system is pressure-tested to confirm there are no leaks.
- Cleanup and patching. Access points are closed up and the work area is cleaned.
Many crews work one section at a time so your water is only off for short periods, not for days on end.
How long does a whole house repipe take?
A whole house repipe usually takes a few days for an average single-family home. The exact time depends on the size of the house, the number of bathrooms, the pipe material, and how easy the pipes are to reach.
A small home with simple plumbing may be done faster, while a large or multi-story home takes longer. Your technician can give you a clearer timeline after the inspection.
What affects the cost of a whole house repipe?
The cost of a whole house repipe depends mainly on the size of your home and the pipe material you choose. No two homes are exactly alike, so a written estimate after an inspection is the only accurate way to know your price.
Main factors that affect cost:
- Home size and number of fixtures, since more bathrooms and appliances mean more pipe.
- Pipe material, since copper and PEX have different costs.
- Number of floors and the layout, since harder-to-reach pipes take more labor.
- Access, such as pipes in slab foundations or tight crawl spaces.
- Wall and finish repair needed after the work.
For a price you can trust, start with a free inspection from Pipeliners USA.
PEX vs. copper: which pipe is right for a repipe?
PEX and copper are the two most common materials for a whole house repipe, and both make reliable water lines. PEX is a flexible plastic tubing, while copper is a rigid metal pipe with a long track record.
| Feature | PEX | Copper |
|---|---|---|
| Material | Flexible plastic tubing | Rigid metal pipe |
| Installation | Faster, fewer connections | More labor, soldered joints |
| Cost | Usually lower | Usually higher |
| Freeze resistance | More flexible under pressure | Can crack if frozen |
| Corrosion | Does not rust | Can corrode over time |
| Best for | Most homes wanting value | Owners who prefer metal pipe |
Your technician can recommend the right choice for your home, budget, and local water.
Whole house repipe vs. epoxy pipe restoration
A whole house repipe replaces your old pipes with new ones, while epoxy pipe restoration coats the inside of your existing pipes to seal and protect them. Both improve water quality and stop leaks, but they work very differently.
| Option | What it does | Good when |
|---|---|---|
| Whole house repipe | Removes old pipes and installs new PEX or copper | Pipes are badly corroded or failing throughout |
| Epoxy pipe restoration | Lines the inside of existing pipes with epoxy | Pipes can still be saved and you want less wall opening |
Epoxy restoration can mean less cutting into walls, since it works inside the pipes you already have. To see how the lining process works, visit our page on ePIPE epoxy pipe restoration. A technician can tell you which option fits your home after an inspection.
Frequently asked questions
What does a whole house repipe include?
A whole house repipe includes replacing all of the water supply lines in your home with new pipe and connecting them to every fixture and appliance. It does not cover your sewer or drain lines, which are a separate system.
How long does a whole house repipe last?
New repiped systems are built to last for decades when installed correctly. The exact lifespan depends on the pipe material, your water quality, and proper installation.
Is a whole house repipe worth it?
A whole house repipe is usually worth it when you have ongoing leaks, rusty water, or low pressure across the home. Replacing everything at once often costs less over time than paying for repeated single-leak repairs.
Can I stay in my home during a repipe?
Yes, most homeowners can stay in the home during a repipe. The crew turns the water off in stages, so you only lose water for short periods rather than the whole project.
Does a whole house repipe fix low water pressure?
Often, yes. If your low water pressure comes from old, corroded, or scaled-up supply pipes, replacing them with clean new lines can restore steady flow throughout the home.
Is epoxy pipe restoration better than a repipe?
Neither is always better. Epoxy restoration can save pipes that are still in fair shape with less wall opening, while a full repipe is the stronger choice when pipes are badly corroded. An inspection is the best way to decide.
Ready to find out if you need a whole house repipe?
If you are seeing rusty water, weak pressure, or repeat leaks, do not wait for the next burst pipe. Schedule a free inspection with Pipeliners USA and get clear answers about your home’s water lines.
