Repiping 101: An Introduction
Do homeowners need to worry about repiping their household plumbing?
Repiping is not a regular, run-of-the-mill kind of plumbing issue. While occasional plumbing issues are a normal and expected part of homeownership, repiping isn’t. Indeed, many plumbing repairs are minor and some can even be performed by the homeowner. However, if you are having continual plumbing issues — including major loss of water pressure or water contamination — particularly if your home is older construction, it may be time to consider repiping.
Before deciding if this option is right for you, it’s important to first understand exactly what repiping entails. As you might imagine from the name, repiping means removing all the cold and hot water pipes throughout the entire home and replacing them with new pipes.
It is difficult to know when the cost and inconvenience of frequent plumbing issues become sufficient to warrant repiping your home. Only a trained plumbing professional can advise you on the best solution for your situation.
That said, in the spirit of an educated consumer being a wise consumer, there are a few things you need to know about when repiping is necessary and what the process entails. We’ve put together this Repiping 101 guide to walk you through the main points.
Let’s tap into our Repiping 101 lesson by looking at:
- Factors that lead to repiping
- How repiping works
- Who to call for a repiping project
Signs It’s Time to Consider Repiping Your Home
These are the five key signs it could be time to start thinking about repiping:
Your Home Is 50+ Years Old
Up through the mid-twentieth century, galvanized steel was the primary material used in plumbing. While galvanized steel is strong, it generally succumbs to corrosion after about 50 years and needs replacement. Even more modern pipes — such as polybutylene (poly) piping — don’t last forever, so keep an eye on plumbing systems that could be reaching the end of their lifespan.
Rust or Discolored Water from Your Taps
The two telltale signs of rust and mineral buildup are low water pressure and reddish-brown water coming out of the faucet. As rust or minerals accumulate over time, they slowly begin to constrict the flow of water, resulting in low water pressure. Red or brown water results when bits of rust break off from the pipes into your water supply, affecting your water quality. It takes a long time for this much buildup to occur, so by the time you notice red or brown water, it is past time to consider repiping to fix the problem.
Multiple or Recurring Pipe Leaks
A common analogy used to describe your plumbing system is to compare it to the circulatory system of the human body. Just as blood vessels are wound through the skeletal frame, so too are the various branches of cold and hot water pipes leading out from your home’s water intake and water heater. These pipes also remove waste from your house into a sewer or septic system.
While you can expect occasional isolated pipe leaks from time to time, frequent or recurring leaks are usually a sign that the entire system is deteriorating and requires replacement. You can keep replacing pipes as they burst, but if you are doing this frequently, there are likely problems occurring where you can’t see them — and which could cause further damage beyond low water pressure.
Slab Leaks
One such hidden problem is slab leaks. When homes are built on a slab — a layer of concrete poured over soil or gravel — the plumbing runs beneath the concrete. Should the plumbing beneath the house foundation leak, that’s a problem that requires quick attention.
In addition to age, slab leaks are caused by cracked pipes, a common occurrence in areas with clay soil that shifts and exerts pressure on the pipes. If pipes are installed close to hard surfaces, there’s also a risk of abrasion: pipes vibrate when water passes through them, causing them to knock against hard surfaces and eventually wear through the pipe material. Then there’s the usual issue of general corrosion over time.
Because slab leaks occur beneath the concrete foundation, the signs aren’t always obvious. The longer a slab leak runs unabated, the more likely it is to cause major structural damage.
Signs of a slab leak include:
- Cracks in the foundation
- Mold or mildew smell
- Unexplained water puddles
- Hot spots on the floor (indicating a hot water leak)
- Continual sound of running water when all taps are closed and no appliances are running
You’re Remodeling a Kitchen or Bathroom
If you’re remodeling your home, consider going the extra mile and repiping at the same time — particularly if the remodel involves a kitchen or bathroom. Even a partial repiping makes sense when walls and cabinetry are already being opened. It ensures your new look is protected and avoids costly repairs down the road.
How Does Repiping Work? (Step-by-Step)
Complete home repiping may seem like a daunting task, but it more than pays for itself by cutting down on repeat plumber calls and the high water bills associated with leaky pipes.
Before any work is performed, a thorough inspection of the home and surrounding property is completed to outline a project plan. Depending on the size of your house, repiping may take anywhere from a couple of days to a week. Typically, the bulk of the work that requires a complete water shut-off can be done while you’re out during the day, so you experience minimal disruption to your routine.
To begin, the plumbing team first covers any carpet and furniture to protect them from dust and debris. They then make small cuts in the wall and drywall to locate the pipes, remove them, and install the new ones — leaving as much of the original building material intact as possible.
What Types of Pipes Are Used in Repiping?
Repiping uses copper, PEX, PVC, and CPVC pipes — all extremely durable materials that save you money by preventing future issues and repairs. Installation is routed through existing holes in floors and walls wherever possible, and any excess spaces are tightly sealed.
If further renovations are desired alongside the repiping — such as installing a tankless water heater or expanding the water system for a remodel — those alterations are coordinated at the same time.
The repiped plumbing system is thoroughly tested for proper water pressure and flow before the team wraps up. Finally, the drywall and other materials are repaired, patched, and retextured — so it looks as though nothing ever happened.
Professional Repiping Services in the Bay Area
Understandably, many homeowners are reluctant to take on such a large plumbing project. But if the signs point to multiple issues with your home plumbing system, doing it all at once is often more convenient and cost-effective than repeatedly calling a plumber for band-aid fixes. Repiping cures a number of plumbing woes, including:
- Low water pressure
- Yellow, rusty, or brown water
- Odors from rust and other contaminants built up in pipes
- Unexpected bursts of scalding hot water after a sink or washing machine turns off, or a toilet is flushed
A skilled professional team can complete the project with minimal disruption to your daily routine.
At Benjamin Franklin Plumbing Bay Area, we are proud to meet the plumbing needs of homeowners throughout the Bay Area. Whether you need a few simple tune-ups, a reliable plumber on-call for sudden leaky pipes, or a complete overhaul of your home’s water delivery system, our team is here to help. From diagnostics and emergency repairs to maintenance and new system installation, our highly skilled professionals do it all.
We offer repiping services in Novato and repiping in San Jose — and throughout the greater Bay Area. Contact us today for a free repiping consultation.
Frequently Asked Questions About Repiping
How long does whole-house repiping take?
Most homes take 2–5 days depending on size and pipe layout. Our team works while you’re out during the day to minimize disruption to your routine.
What pipes are used when repiping a house?
We use copper, PEX, and CPVC pipes — all of which are highly durable and meet California building codes.
How long does repiped plumbing last?
Copper piping lasts 50+ years. PEX and CPVC are rated for 25–40+ years with proper installation.
How much does repiping cost in the Bay Area?
Cost varies by home size and pipe material. See our full repiping cost guide for Bay Area pricing ranges.