What does your situation point to?
Tap the closest match for a general idea of next steps. This does not replace a licensed plumber's inspection.
Repipe Readiness Score
Answer six quick questions to see how likely it is that a plumber's inspection for repiping is worth scheduling. This is a screening aid, not a diagnosis. Only an on-site inspection can confirm what your pipes need.
Signs Your Home May Need Repiping
Your home may need repiping when leaks keep appearing in different places, the water runs brown or rusty, pressure drops at several fixtures, or the pipes are a material with a poor track record, such as galvanized steel or polybutylene. One sign alone rarely settles it. A pattern across several signs is what points toward replacing the whole supply system.
The most common warning signs
- Repeated leaks in new spots. A pinhole in a copper line here, a failed joint there. When fixing one leak is followed by another within months, the pipe walls are often thinning everywhere, not just at one spot.
- Brown, yellow or rusty water. Galvanized steel rusts from the inside. If the color shows up at several faucets and not only after the water sat unused, the pipes are a likely cause.
- Low pressure at multiple fixtures. Old galvanized pipe can close up with rust and mineral scale until little water gets through. Low pressure at only one faucet is usually a local clog or a worn cartridge, not a repipe.
- Green, blue or white crust on copper. This is corrosion or hard-water scale at joints and fittings, and it can mean a slow weep is already under way.
- Stains, bubbling paint or musty smells. Water inside walls or ceilings leaves marks long before you see a drip. An unexplained rise in your water bill points the same way.
- Banging or whistling pipes. Water hammer and noise can come from loose pipe, high pressure or failing valves. It is worth investigating, though noise alone does not mean repiping.
- Known polybutylene or galvanized pipe. If a past inspection report listed either one, the pipe is at or near the end of its expected life even if it has not leaked yet.
Not sure where your home falls? Use the Repipe Readiness Score above, or read the sections below on repairing versus repiping.
Causes of Recurring Pipe Leaks
Recurring leaks happen when something is wearing out the whole pipe system, not just one spot. The usual causes are water chemistry, high pressure, age, poor installation and, in some homes, the pipe material itself.
Water chemistry and corrosion
San Antonio water is very hard, meaning it carries a lot of dissolved calcium and magnesium. Hard water leaves scale inside pipes and water heaters. Scale narrows the pipe and can trap corrosion underneath it. In copper, certain water conditions combined with flow and heat can cause pitting, which shows up as tiny pinhole leaks, often in hot-water lines first. Galvanized steel corrodes from the inside out, so the pipe can look fine outside while the walls are thin within.
High water pressure
The San Antonio Water System (SAWS) says pressure in its service area can range from about 35 to 175 psi, and that 80 psi is the recommended maximum. A pressure-reducing valve (PRV) sits on the property owner's side of the meter. If it is missing, worn out or set too high, every pipe, joint and fixture in the house is under extra stress. Replacing pipes without fixing pressure can bring the problem back. See our page on pressure regulator replacement.
Age and material
Every pipe material has a typical lifespan, and the range depends heavily on water, pressure, installation quality and temperature. Galvanized steel from before the 1960s is often well past it. Polybutylene from the late 1970s through the mid-1990s has a documented history of failures. Copper can last for decades in good conditions but can fail early in aggressive water.
Installation and movement
- Soil movement. San Antonio's expansive clay and caliche soils swell and shrink with moisture, which flexes slab foundations and the lines in or under them.
- Poor joints or mixed metals. Dissimilar metals connected without proper fittings can corrode at the connection.
- Thermal expansion. In a closed system with a check valve or PRV, heated water has nowhere to go, which raises pressure and stresses fittings. An expansion tank handles this.
If you only have one leak and the rest of the system is healthy, a repair is usually the better value. For that, see plumbing repair in San Antonio. If a leak is under the slab, start with slab leak repair.
What to Do Right Now If You Suspect a Failing Pipe
If water is actively leaking, shut off the main water valve first, then turn off the water heater and call a licensed plumber. Most damage from a failing pipe comes from the hours water runs unnoticed, so fast action matters more than a perfect diagnosis.
- Shut off the main valve.Turn the main shutoff at the house clockwise (or the lever a quarter turn). If you cannot find it or it will not move, the meter shutoff is on the street side, and SAWS can help if you cannot close it.
- Open the lowest faucet or hose bib.This drains pressure out of the lines and slows the leak.
- Switch off the water heater.Turn the electric breaker off or set the gas control to pilot or off so the tank is never heated with no water flowing.
- Protect electrical areas.If water is near outlets, a panel or light fixtures, turn off power to that area at the breaker only if you can reach it safely and stay dry. Otherwise stay away and call for help.
- Move belongings and catch the water.Move furniture and rugs, put towels or buckets down, and take photos of damage for insurance before you clean up.
- Do not cut into walls or ceilings yourself.You may hit electrical wiring or make a bigger leak. Poke a small drain hole in a bulging ceiling only if it is about to collapse and no wiring is near.
- Call us.Call (210) 898-9754 for emergency help. Texting a photo of the damage and the pipe material helps us prepare.
For a burst line during a freeze, see burst pipe repair. If you cannot tell where the leak is, water leak detection can find it without tearing into walls.
Pipe Materials in San Antonio Homes, by Era
The age of your house is the best clue to what is inside its walls. San Antonio has housing from the 1800s to brand-new subdivisions, so you may find several materials in one home after past repairs. The table shows what plumbers commonly find, in general terms.
| Material | When commonly installed | Typical concerns |
|---|---|---|
| Galvanized steel | Common in homes built before about the 1960s | Rusts from inside, reduces flow, brown water, threaded joints leak |
| Copper (Type L and M) | Widely used from the 1950s onward; Type L is thicker than Type M | Pinhole leaks from pitting in some water, scale, joint failures; strong and fire-resistant |
| CPVC | Common from the 1980s onward | Can become brittle with age and heat; cracks at fittings |
| Polybutylene (gray, blue or black) | Roughly 1978 to the mid-1990s | Documented leaks and splits, especially at fittings; reaction to chlorinated water |
| PEX (A, B or C) | Increasingly used from the 1990s; standard in many new homes | Needs proper support and protection from sunlight; fittings must match the tubing type |
General industry information. Years vary by builder and region. Your inspection will confirm what you have.
Polybutylene (Quest) in 1978 to 1995 homes
Polybutylene is a gray plastic pipe, often sold under the name Quest, that was used in millions of US homes from about 1978 into the mid-1990s. Failures are linked to chlorine and other oxidants in public water supplies, which can degrade the pipe and its acetal fittings from the inside. A large class-action settlement over polybutylene plumbing, known as Cox v. Shell Oil, was reported at about $1 billion, and its claim period has long since ended. Insurers and buyers still tend to treat it as a known risk. Whether any one polybutylene system leaks is not certain, but many plumbers recommend replacement before a leak causes damage.
Galvanized steel in older homes
If your pipes are gray, threaded and magnet-attracting, they are probably galvanized steel. These are usually the strongest repipe candidates because rust slowly closes the pipe. Low pressure and brown water are the main symptoms.
Copper: strong, but not immune
Copper is a respected choice and is still widely installed. Problems tend to come from water chemistry, high flow velocity, heat and aggressive water rather than age alone. Type L is thicker than Type M, which is thinner and was more common in residential branch lines. See our PEX vs copper comparison if you are choosing a replacement.
CPVC
CPVC is cream or yellowish rigid plastic. It does not corrode, but it can turn brittle over decades, especially in hot attics, and can crack when stressed. A plumber can test how brittle yours has become.
PEX vs. Copper Repiping
PEX is a suitable and widely used choice for repiping, and copper is also an excellent one; the better pick depends on your home, water, budget and preferences. Both are accepted by plumbing codes when installed correctly. Here is how they compare in practical terms.
| Factor | PEX | Copper |
|---|---|---|
| Installation in finished walls | Flexible tubing can be fished through walls and attics with fewer openings | Rigid pipe needs more openings and soldered or fitted joints |
| Joints | Fewer, using crimp, clamp or expansion fittings | Many soldered or press-fit joints |
| Corrosion and pinholes | Does not corrode or pit; scale buildup is less of a concern | Can pit in some water; scale can form |
| Freeze tolerance | Expands more than rigid pipe, but can still split when frozen; insulation still matters | Rigid; usually splits when frozen |
| Sunlight | Must be protected from long UV exposure; not for outdoor runs unless rated and protected | Unaffected by sunlight |
| Lifespan | Often quoted as several decades; long record is shorter than copper's | Long record; decades in good conditions |
| Cost | Material is typically lower; labor is often lower | Material is typically higher; labor is often higher |
| Recyclability and theft | Not recyclable the way metal is | Valuable scrap; high material cost |
General comparison, not a quote or a promise about your project.
PEX types and fittings
PEX-A, PEX-B and PEX-C are made by different cross-linking methods and differ in flexibility and kink resistance. PEX-A is the most flexible and is commonly used with expansion fittings. PEX-B is stiffer and is commonly used with crimp or clamp rings on brass fittings. PEX-C sits in between. Brass fittings are common with PEX. Fittings, tubing and tools must be a compatible set. A plumber matches them to the system, and mixing them can cause leaks.
Common PEX safety and handling facts
- Freeze tolerance. PEX can expand when water freezes inside it and often survives a freeze better than copper, but it is not freeze-proof. Insulate lines in attics and exterior walls.
- UV exposure. Sunlight breaks down PEX. Manufacturers limit how long it can be left exposed, often a matter of months. Keep it covered until installed and out of the sun.
- Chemicals. Certain solvents, petroleum products and pest-control chemicals can attack PEX. Keep it away from them and avoid contact with some fuels and sealants.
- Chlorinated water. Modern PEX is tested for chlorine resistance. Follow manufacturer ratings for the water temperature and chlorine level in your area.
Concerned about your drinking water after repiping? Our whole-house water filtration page explains options. If hard water is the main issue, a water softener can help protect your new pipes and fixtures.
Repipe vs. Spot Repairs: A Decision Framework
Repairing a single leak fixes one failed spot, while repiping replaces the supply system that keeps failing. Repair is usually right for an isolated problem in otherwise sound pipe. Repiping usually makes sense when the pipe material or condition suggests more failures are coming.
Spot repair
- One or two leaks, with years between them
- Pipes in decent shape and a newer material
- Leak caused by a fixture, valve or a single bad joint
- Tight budget and no sign of widespread corrosion
Whole-house repipe
- Several leaks in a short time, in different places
- Galvanized steel or polybutylene supply pipes
- Rusty water and low pressure at many fixtures
- Past water damage costing more than the repipe
A simple way to weigh it
- Count the leaks. Three or more supply leaks in a few years is a strong signal.
- Check the material and age. Galvanized and polybutylene carry the highest risk.
- Add up water damage. Repairs, drywall, flooring, mold work and insurance deductibles add up fast.
- Look at water quality and pressure. Persistent discoloration or weak flow suggests a system problem.
- Consider your plans. If you are selling, remodeling or staying long term, the calculation changes.
Phased repiping
You do not always have to replace everything at once. A plumber may be able to replace the worst section first, such as the hot-water side, an attic run or one bathroom group, and plan the rest for later. Phasing spreads the cost but may cost more overall because of repeated setup and patching. Ask your plumber to list the phases, the order and what each phase costs in the written estimate.
A single failed pipe or fixture is handled under plumbing repair. If the buried line from the meter to the house is the problem, it is a separate job: water line repair and replacement.
☎ Call (210) 898-9754Replacing Old Supply Pipes: What Is and Is Not Included
A whole-house repipe replaces the supply (distribution) piping that carries pressurized hot and cold water from where the water enters the house to every fixture. It does not replace your drain, waste, vent or sewer lines, and it is a different job from replacing the underground line from the meter.
- Hot and cold supply lines to sinks, showers, tubs, toilets and appliances
- Main shutoff and fixture shutoff valves, when worn or incompatible
- Angle stops and supply stubs at fixtures, as needed
- Hose bibs (outdoor faucets) connections
- Connections at the water heater
- Pressure-reducing valve, if missing or worn, and an expansion tank where needed
- Manifold or trunk-and-branch layout, depending on the design
- Drain, waste and vent pipes
- Sewer lines (see sewer line repair)
- The underground water service line from the meter (see water line repair)
- Gas piping
- New fixtures, unless you add them to the estimate
- Drywall texture, paint, flooring and tile finishes, unless the estimate says so
Scope varies from house to house, so the written estimate should list exactly what is included. If you want new fixtures, a new water heater or a softener installed at the same time, say so up front so it is priced in one plan. Related work such as water heater installation or faucet repair can often be scheduled during the same visit.
How pipes are routed in San Antonio homes
Most San Antonio homes are built on concrete slabs, not over crawlspaces. That changes how repiping is done.
- Overhead (attic) routing. Plumbers run new lines through the attic and drop them down inside walls to fixtures. This is common for slab homes because it avoids breaking the slab. It means opening some drywall and attic work in summer heat.
- Under-slab lines. If supply lines run under the slab and have failed, the choices are to abandon them and re-route overhead, or to tunnel or break the slab to replace them. Re-routing is often less disruptive but depends on the home layout.
- Cut-and-patch drywall. Small access holes in walls, closets and ceilings let the plumber fish new pipe through. The holes then need patching. Who patches and paints should be spelled out in the estimate.
Our Whole-House Repiping Process, Step by Step
A well-run repipe follows a clear order: inspect, plan in writing, protect the home, install new pipe, test under pressure, then restore and flush. Here is the process we follow, in plain steps.
- Inspect and identify.We look at your existing pipe material, access points, water heater, pressure and any visible leaks. We may check pressure with a gauge and look in the attic.
- Explain your options.We discuss repair, a phased repipe or a full repipe, and compare PEX and copper for your home.
- Written estimate.You get the scope, materials, patching responsibilities and any permit work in writing before anything starts. Warranty terms are listed on your written estimate.
- Permit and scheduling.We confirm what the City of San Antonio requires and schedule water-off windows with you.
- Protect your home.Floors and furniture are covered, and the work area is set up to limit dust and mess.
- Shut off and rough in.We shut off water, cut out or disconnect old lines, and run the new lines using the routing we agreed to.
- Reconnect fixtures and valves.New shutoffs, connections at the water heater and fixtures, and the PRV and expansion tank where needed.
- Pressure test and inspect.The new system is tested under pressure before walls are closed, and the permit inspection is arranged where required.
- Flush and restore.We flush the lines, clean aerators and make access openings ready for patching, in line with the written scope.
- Walkthrough.We show you shutoffs, answer questions and review next steps.
Disinfecting and flushing
New plumbing is flushed to clear debris, flux, shavings and air. Where required or requested, the system may also be disinfected. Run each tap for a few minutes after the work, and clean the small screens in faucet aerators because they catch the first particles.
After the repipe: noise and pressure
Water hammer, a banging sound when a valve closes, can still occur on new pipe if it is not secured or if pressure is high. Ask about water hammer arrestors, secure pipe supports and a pressure test of the PRV. The final pressure should be at or below the 80 psi recommended maximum SAWS cites. Related: water pressure repair.
How Long Repiping Takes and How to Prepare
Whole-house repiping typically takes from a day or two for a small home to several days for a large or complex one. That is a general industry range, not a Stark commitment. The real timeline depends on home size, number of bathrooms, access, pipe material, whether lines are under the slab and permit inspection timing.
| Factor | How it affects time |
|---|---|
| Home size and number of fixtures | More fixtures and bathrooms means more pipe and more connections |
| Attic access | Easy attic access speeds overhead routing; tight spaces slow it |
| Finished walls and tile | More openings and careful cutting takes longer |
| Under-slab lines | Re-routing or tunneling adds time |
| Inspection scheduling | The inspection must pass before walls are closed |
Can you stay in the house?
Many families stay home during a repipe, but there will be times with no water. Because water is off during the day for stretches, some people arrange a morning out, a stay with family or a short hotel night for kids, pets or work-from-home needs. Plan on limited use of bathrooms during shutoff windows. Ask your plumber for the schedule.
Drywall, paint and patching
Fishing pipe through walls usually means small openings. Whether those are patched and painted by the plumber, a drywall crew you hire or you is something to settle in writing. Please discuss scope in the written estimate so there are no surprises.
Prepare your home
· Tip: screenshot this list.
What Affects Whole-House Repiping Cost
Repiping cost depends mostly on home size, pipe material, how many fixtures and bathrooms there are, how hard the walls and attic are to access, and how much patching is included. Nationwide, whole-house repiping is a large project, and prices run from several thousand dollars for small homes to well into five figures for larger or more complex ones.
| Cost driver | Why it matters | General effect |
|---|---|---|
| Home size and bathroom count | More pipe, fixtures and connections | Biggest driver |
| Material (PEX vs copper) | Copper material and labor typically cost more | Copper usually higher |
| Access | Attic space, finished walls, tile and tubs | Hard access raises labor |
| Under-slab lines | Re-routing or slab work | Can add significantly |
| Permits and inspection | City fees and scheduling | Small to moderate |
| Drywall, paint, flooring repair | Included or handled separately | Varies; confirm in writing |
| Extras | New shutoffs, PRV, expansion tank, water heater work, fixtures | Add-ons if requested |
| Phased work | Spreads cost but repeats setup | May cost more overall |
Avoiding surprise add-ons
Many homeowners worry about hidden charges and big quotes. The best protection is a detailed written estimate. Ask what happens if the plumber finds rotted wood, a corroded valve or a hidden second material once walls are open. We stop and talk with you before any change to scope or price, and we do not proceed on extras without your approval. Compare estimates line by line, not just by the total.
Insurance may cover water damage that a sudden leak causes, but typically not the cost of replacing worn-out pipe itself. Ask your insurer how they treat your pipe material. Some insurers ask about polybutylene or galvanized pipe at application or renewal, so it can also affect your coverage options.
Repiping During a Remodel
The least disruptive and often most economical time to repipe is when the walls are already open for a remodel. If a bathroom or kitchen is being gutted, new supply lines can be installed before drywall goes back up, and you avoid cutting into finished walls later.
Why coordinate
- Fewer openings. You pay for drywall and tile only once.
- Better layout. You can move fixtures, add a second shower or upgrade valves with the walls open.
- One schedule. The plumber, electrician, drywall and tile crews can work in sequence.
- Single inspection path. Rough-in plumbing is inspected before walls close.
Questions for your remodel plan
- Are the pipes behind this wall galvanized, polybutylene or old copper? If so, replace them now rather than seal in old pipe.
- Do the supply lines on the other side of the wall need replacing too?
- Can new shutoffs be added so one bathroom can be isolated in future?
- Is pressure within the recommended limit before new fixtures go in?
Our bathroom remodel plumbing and kitchen remodel plumbing pages cover the fixture side. For a new addition or rough-in work, see plumbing rough-in. If you are only remodeling one room, a partial repipe of that area may be all you need.
Repiping in San Antonio: Local Conditions
San Antonio's very hard water, variable water pressure, expansive clay and caliche soils, slab foundations and older neighborhoods all shape how repiping is planned here.
Pressure and the pressure regulator
SAWS says pressure in its service area can range from 35 to 175 psi and recommends keeping house pressure at or below 80 psi. The PRV is on the homeowner's side of the meter. If yours is missing or worn, a repipe is a good time to replace it. See water pressure regulator replacement.
Soil, slabs and foundation movement
Expansive clay and caliche mean the ground moves with moisture. Slab foundations flex, and pipes in or under the slab can be stressed. That is one reason overhead routing is popular in San Antonio. If you have a leak under the slab, see slab leak repair.
Housing stock
- Older core neighborhoods such as King William, Southtown and Alamo Heights have many pre-1960 homes where galvanized steel may still be found.
- 1978 to 1995 subdivisions on the north and west sides may have polybutylene.
- Newer areas such as Stone Oak, Alamo Ranch and the Dominion more often have copper or PEX.
Utilities
SAWS provides water and CPS Energy provides electricity and natural gas. Neither is part of our company. SAWS handles the line up to the meter. The service line from the meter to the home is the homeowner's side. See water line repair for that part.
Best Time of Year to Repipe in San Antonio
The best times to schedule a repipe in San Antonio are usually spring and fall, when attic temperatures are bearable and the water does not need to be shut off in extreme weather. Winter and summer each bring their own concerns.
Winter
The February 2021 winter storm showed many San Antonio homeowners how vulnerable pipes in attics and exterior walls can be. Repiping is a chance to insulate lines, route them in conditioned space and add shutoffs. Freeze events can also make plumbers busy.
Summer
Hot attics make overhead work slower and harder. Heat and drought dry out clay soil, which shrinks and moves foundations, and that can stress pipes. Pressure and demand can be high from irrigation.
Spring
Mild weather makes spring a good time to schedule. Book before summer heat and before lawn watering raises demand.
Fall
Fall is a good window to repipe before winter. Use the time to add freeze protection and shutoffs ahead of cold snaps.
Do not wait for a season if you have an active leak. Emergency repairs come first. See frozen pipe repair if a freeze hits before your project, and burst pipe repair for a split line.
Seasonal prep
- Before winter: insulate exposed pipes, know your main shutoff and cover hose bibs.
- Before summer: check pressure with a gauge, look for new stains and test shutoffs.
- Year-round: watch your water bill. A sudden rise can signal a hidden leak.
Permits, Codes, Licensing and Inspection
In the City of San Antonio, repiping typically requires a plumbing permit and inspection, and the work must be done by or under a licensed plumber. We confirm what applies to your address before the work starts.
- Permit. Whole-house repiping is a significant change to your plumbing system, and cities typically require a permit. Rules vary by jurisdiction, such as the City of San Antonio versus nearby municipalities. We confirm permit needs for your property.
- Inspection and pressure test. The city inspector typically checks the new supply piping under test pressure before the walls are closed.
- Licensing. In Texas, plumbers are licensed by the Texas State Board of Plumbing Examiners (TSBPE). Ask any plumber for their license number and verify it at tsbpe.texas.gov.
- Code. Materials must be approved for potable water, and fittings must match the pipe type. Pressure should be controlled within recommended limits.
- Insurance and resale. Permitted, inspected work is easier to document for insurers and buyers. Keep copies of your permit, estimate and warranty paperwork.
Why You Should Not DIY a Whole-House Repipe
Repiping a house is not a weekend project, and mistakes can flood the home, damage walls and slabs, and cause expensive problems you may not see for months.
- Flooding. One failed joint inside a wall can release water for hours before anyone notices.
- Hidden damage. Drilling or cutting can hit wiring, gas lines and other pipes. In a slab home, mistakes under or through the slab are costly.
- Permits and code. Unpermitted work can cause trouble with the city, your insurer and a future sale.
- Wrong fittings and failed pressure tests. PEX tubing, rings, tools and fittings must match. A poor crimp or expansion joint may hold for a while and fail later.
- Mixing metals. Connecting copper to galvanized steel without the right fitting can cause galvanic corrosion at the joint.
- Insurance and resale. A buyer's inspector or insurer may question unlicensed work.
- Safety. Attic heat, electrical hazards and water heater connections are real risks.
A homeowner may repair a simple fixture or replace a faucet. Replacing the supply system of a home is a job for a licensed plumber with the right tools, permits and testing. Call us at (210) 898-9754 for an on-site look and a written estimate.
Questions to Ask Any Plumber Before Hiring, and How Our Estimates Work
Before hiring anyone for a repipe, ask for their license number, a written estimate with the scope spelled out, and who handles permits, patching and cleanup. Use this checklist when you compare plumbers.
· Tip: screenshot this list.
Plumber or specialty repipe company?
Some companies advertise only repiping and some plumbers do it as part of a full service. Compare them on license, written scope, permit handling, patching and warranty terms rather than on name or advertising. A full-service plumber can also address pressure regulators, water heaters and leaks in the same plan.
How our estimate process works
- Look and listen.We inspect the pipes and ask about your leaks, history and plans. Photos by text are welcome.
- Written estimate first.You see the scope, materials and any permit work in writing before work begins.
- Your approval to start.Work begins only after you approve.
- We stop and talk if scope changes.If we find something unexpected, we explain and get your approval before going further.
Warranty terms are listed on your written estimate. We do not make promises about timelines or prices on this page. Call (210) 898-9754 to start.
Repiping Myths vs. Facts
"Repiping means tearing out all my walls."
Fact: Most repipes in slab homes use attic routing and small access openings, not full demolition. Scope depends on your home.
"PEX is cheap plastic and will not last."
Fact: PEX is code-approved and widely used in new homes. Like any material it must be installed correctly and protected from sun and chemicals.
"Copper never fails."
Fact: Copper is durable but can develop pinhole leaks in some water conditions and fail at joints.
"If it is not leaking, the pipes are fine."
Fact: Galvanized steel and polybutylene can fail with little warning. Pressure, color and age tell you more than leaks alone.
"Homeowners insurance pays for old pipes."
Fact: Policies typically cover sudden water damage, not the cost of replacing worn pipe. Check your policy.
"A repipe fixes every plumbing problem."
Fact: It replaces supply lines only. Drains, sewer lines, water heaters and the line from the meter are separate.
Have a question we did not cover? Call (210) 898-9754 or text a photo.
Whole-House Repiping FAQs
How do I know if my house needs repiping?
Your house may need repiping if you have repeated leaks in different spots, rusty or brown water at several faucets, low pressure at multiple fixtures, or galvanized steel or polybutylene supply pipes. Two or more of these signs together matter more than one alone. A licensed plumber can inspect the pipes, check pressure and tell you whether repairs, a phased repipe or a full repipe fits your home.
Is PEX suitable for repiping?
Yes, PEX is widely used for residential repiping and is accepted by plumbing codes when installed with compatible fittings. It is flexible, resists corrosion and pitting, and can be fished through finished walls with fewer openings. It must be protected from long sun exposure and certain chemicals, and lines in attics and exterior walls should be insulated against freezing.
What is the difference between repiping and repairing individual leaks?
Repairing fixes one failed spot, such as a leaking joint or pinhole, and leaves the rest of the pipes in place. Repiping replaces the supply piping throughout the house. Repair suits isolated problems in sound pipe. Repiping makes sense when leaks keep recurring, when the material is galvanized or polybutylene, or when water damage costs are adding up.
How long does a whole-house repipe take?
Generally, a whole-house repipe takes from about a day or two for a small home to several days for a large or complex one. This is a general industry range, not a Stark commitment. Time depends on home size, number of bathrooms, attic and wall access, any under-slab lines and permit inspection timing. Your written estimate and schedule will give specifics.
Can I stay in my house during repiping?
Many homeowners stay in the home, but water will be off for stretches while old lines are removed and new ones connected, and there will be some noise and dust. Plan for limited bathroom and kitchen use during those windows. Some families arrange a day away or a short stay elsewhere. Ask your plumber for a daily shutoff schedule.
What is polybutylene pipe and should it be replaced?
Polybutylene is a gray, blue or black plastic pipe used in many US homes from roughly 1978 into the mid-1990s. It has a documented history of leaks linked to chlorinated water, and a large class-action settlement followed. Many plumbers recommend replacing it, even if it has not leaked, and insurers or buyers may ask about it. A plumber can confirm what you have.
Does repiping include sewer or drain lines?
No. A whole-house repipe replaces the pressurized supply lines that bring hot and cold water to your fixtures. It does not include drain, waste and vent lines, sewer lines, or the underground water line from the meter to the house, which are separate jobs. Ask for the written estimate to list exactly what is included.
Do I need a permit to repipe my house in San Antonio?
The City of San Antonio typically requires a plumbing permit and inspection for repiping, and the work should be done by a licensed plumber. We confirm the requirements for your address before work begins. You can verify any plumber's license at tsbpe.texas.gov, and you should keep a copy of the permit with your home records.
Will repiping fix low water pressure?
It can, if the low pressure comes from corroded or scaled-up supply pipes, which is common in old galvanized steel. It will not help if the cause is a failing pressure regulator, a partly closed valve or a problem at the street. A plumber should test pressure first. SAWS recommends household pressure stay at or below 80 psi.
What does whole-house repiping cost in San Antonio?
Costs vary widely with home size, pipe material, access, bathroom count, permits and patching. Nationally, general ranges run from several thousand dollars for smaller homes to well into five figures for large or complex ones. That is not a Stark quote. We give a written estimate after an on-site inspection, and we do not proceed on extras without your approval.
Is copper or PEX better for repiping a San Antonio home?
Neither is universally better. PEX usually costs less, needs fewer wall openings and does not pit or corrode, while copper has the longest track record and handles sunlight and heat well. San Antonio's very hard water affects both in different ways, so a softener may help. A plumber can recommend based on your home, water and budget.
Does homeowners insurance cover repiping?
Typically, homeowners insurance covers sudden and accidental water damage but not the cost of replacing worn-out pipes. Some insurers ask about polybutylene or galvanized plumbing and may limit coverage or ask for replacement. Policies differ, so check yours and ask your agent. Keep photos, permits and written estimates for any claim.
Will repiping add value when selling my home?
It can help. Galvanized and polybutylene pipes often show up in buyer inspections and can lead to price negotiations or insurance trouble. New permitted pipe with a written warranty is easier to document and may reassure buyers. It does not guarantee a higher price. Ask your real estate agent, and keep permit and warranty paperwork.
Who patches and paints the drywall after a repipe?
That depends on the scope in your written estimate, so we do not assume. Repiping often requires small access openings in walls and ceilings. Some plumbers include basic patching, some leave openings ready for a drywall crew, and some leave it to the homeowner. Discuss scope in the written estimate before approving work.
About This Page and Our Sources
Sources and further reading:
- Texas State Board of Plumbing Examiners — verify a plumber's license
- San Antonio Water System: High Pressure — 35 to 175 psi range and 80 psi recommended maximum
- Polybutylene (Wikipedia) — history of polybutylene plumbing and related litigation
- U.S. Consumer Product Safety Commission — product safety information
- U.S. EPA: Drinking Water — drinking water and plumbing materials
- Plastics Pipe Institute — industry information on plastic piping
- City of San Antonio Development Services — permit information
Costs, timelines and code requirements vary by home, equipment and the City of San Antonio permit rules in effect at the time of the work. Nothing on this page replaces an on-site inspection by a licensed plumber. Stark Plumbing Solutions is not affiliated with SAWS, CPS Energy or any manufacturer named on this page.
