New supply lines throughout
Full replacement of hot and cold supply lines from the main shutoff to every fixture, in PEX tubing or Type L copper. No splicing into old pipe, no partial runs, no reused fittings anywhere in the system.
Licensed
Licensed & Bonded
Fully Insured
Insured & Bonded
24/7 Emergency
Same-Day Response
Warranty Backed
10+ Years Trusted in Covina
What a full repipe covers
Every repipe we quote includes the pipe, fittings, valves, labor, permits, inspection, and drywall patch. We list exactly what is covered so you can compare quotes apples to apples instead of guessing what the other guy left out.
New shutoff valves
Ball valves at the main and at every fixture group, plus new angle stops under each sink and toilet. Old gate valves seize shut, which is exactly when you need them to work. We replace all of them.
Permits and inspection
We pull the repipe permit, schedule the rough and final inspections, and meet the inspector on site. You get the signed-off permit on file, which matters at resale and for your insurance carrier.
Drywall patch and texture
Access openings are cut clean, closed with new drywall, taped, textured to match, and left paint-ready. We do not leave holes for you to hire someone else to fix.
Pressure testing and flush
The new system is pressure-tested at 100 psi for at least an hour, then flushed and run at every fixture hot and cold. We check for weeping fittings and confirm flow before we call the job complete.
Old pipe haul-away
All removed copper, galvanized steel, and debris gets bagged and hauled off. Your yard, garage, and driveway are left the way we found them, minus the failing pipe.
What whole home repiping Covina CA actually involves
Whole home repiping Covina CA is the full replacement of your home's domestic water supply lines, from the main shutoff through the attic, walls, and slab, out to every fixture. We cut out the old copper, galvanized steel, or polybutylene and install new PEX tubing or Type L copper, with new fittings, shutoff valves, and stub-outs at each sink, toilet, tub, and water heater. Nothing gets patched. Nothing gets spliced into 60-year-old pipe.
Most Covina homes built between 1948 and 1975 were plumbed with galvanized steel that has long since rusted from the inside out. You cannot see the corrosion, but you feel it: low water pressure at the shower, a metallic taste, and pinhole leaks that show up behind drywall. If you have been searching whole home repiping Covina CA near me after your third slab leak, that is the pattern. Repiping resets the clock on the entire system in one project.
How our repiping process runs
A whole-home repipe is a scheduled project, not a mystery. Here is exactly what happens from the first walkthrough to the final pressure test, and how long each stage takes.
01
Schedule
Call or book online — a real human picks up and confirms a 2-hour arrival window.
02
Diagnose
Licensed tech inspects on-site, then walks you through the cause and your options.
03
Fix
The job is completed to code and done right the first time — no shortcuts, no surprises.
04
Guarantee
Every job backed by a written workmanship warranty — and we stand behind it.
Tools and methods we use
Tools & Equipment
PEX crimping tool
Crimps ASTM F1807 fittings onto PEX tubing to a calibrated tolerance so every joint is mechanically locked and pressure-tight without solder or flame.
Soldering torch
Used on copper repipes to sweat Type L copper and fittings to UPC standards, with soldering flux and lead-free solder on every joint.
Press tool
Crimps press-fit copper and PEX fittings in tight wall cavities where a torch would be a fire risk, which matters in older Covina framing.
Pipe camera inspection
Confirms the internal condition of existing copper or galvanized lines before we quote, so the repipe scope is based on what the pipe actually looks like inside.
Leak detection equipment
Acoustic and thermal tools that separate a supply-line leak from a drain or irrigation issue, which decides whether a repipe is even the right fix.
Pipe wrench
Breaks loose old galvanized and copper connections at the main and fixtures during removal, including fittings that have been seized for decades.
SharkBite and Uponor fittings
Used for specific tie-in points and repairs where a push-fit or expansion connection is the correct code-approved choice, always to manufacturer spec.
Methods & Standards
Uniform Plumbing Code (UPC) compliance
Every repipe is sized, supported, and tested to UPC standards, which is what the city inspector checks. Hangers, penetration protection, and shutoff placement all follow code, not habit.
100 psi pressure test
We cap the system and hold 100 psi for at least an hour before closing any wall. If a fitting weeps, we find it while the wall is still open instead of after the drywall is painted.
Attic and overhead rerouting
Where under-slab copper has failed, we reroute supply lines through the attic or wall cavities so future service is accessible. This avoids jackhammering finished floors and keeps the slab intact.
Lead-safe work practices
On pre-1978 Covina homes, we follow EPA Lead-Safe Certified procedures around access cuts, including containment and cleanup, because painted wall cavities can contain lead.
When a repipe makes sense
01
A 1955 Covina bungalow with original galvanized pipe and a third leak in two years.
What we do: We quote a full PEX repipe with new shutoffs, replace the water heater connectors, and pull the permit. Rough-in takes two days in a house this size, and we restore water every evening.
→ The leak cycle ends, pressure returns to normal, and the homeowner stops budgeting for emergency repairs every spring.
02
A 1972 Charter Oak home with copper that has developed four pinhole leaks in the attic runs.
What we do: We replace the attic and wall runs in PEX, insulate the new lines, and add a whole-house softener to stop the hard water attack that caused the pinholes.
→ No more ceiling stains, no more emergency calls, and the softener protects the new pipe for the next two decades.
03
A West Covina house with a confirmed slab leak and warped laminate flooring.
What we do: We locate the leak with acoustic detection, reroute the supply lines overhead during a full repipe, and coordinate with the flooring contractor on timing so the new floor goes down after patch work.
→ The slab stays intact, the flooring gets replaced once, and the water bill drops noticeably within the first billing cycle.
04
A Glendora home being prepped for sale with a buyer's inspection flagging polybutylene supply lines.
What we do: We repipe in copper to satisfy the buyer's lender, pull the permit, and provide the inspection sign-off and documentation the realtor needs for the file.
→ The objection is cleared before closing, the credit request disappears, and the sale stays on schedule.
How repiping runs in Covina specifically
Covina sits on the eastern edge of Los Angeles County, and the housing stock tells the story: a large share of homes went up between 1948 and 1975, which means galvanized steel supply lines that are now 50 to 75 years old. Covina water is also hard, running high in dissolved minerals that scale copper from the inside and shorten the life of water heaters. That combination is why we see so many slab leaks and pinhole failures in ZIP codes 91722, 91723, and 91724. Summer heat in the San Gabriel Valley pushes attic temperatures past 140 degrees, so we insulate new attic runs and keep them off the hot side of the roof deck. Winter nights here still dip into the 30s, which is enough to burst an unprotected exterior line, so hose bibs and garage runs get freeze protection during the repipe. If you are looking for affordable whole home repiping near me in Covina, the practical answer is to repipe once, correctly, with permits, rather than patch a system that is already past its service life.
Neighborhoods We Serve
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Downtown Covina
Mostly 1950s single-story homes with slab-on-grade plumbing and original galvanized supply lines. Attic rerouting works well here because most have accessible attics.
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Charter Oak
Larger 1960s and 1970s builds with copper that has reached the pinhole-leak stage. Two-story layouts mean more wall access and a slightly longer rough-in.
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West Covina border
Homes here often share the same vintage plumbing and hard water issues, and many have already had one slab leak repaired before repiping.
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Azusa and Glendora edges
Older bungalows with crawlspace or raised-floor plumbing, which makes repiping faster and cheaper because lines are accessible from underneath.
Local Conditions We Plan For
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Hard water running high in dissolved minerals
Scales copper from the inside and accelerates pinhole leaks. We recommend a softener with the repipe so the new pipe lasts its full service life.
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Attic temperatures above 140 degrees in summer
Hot attics degrade unprotected PEX over time. We insulate attic runs and route them away from the hottest part of the roof deck.
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Pre-1978 housing with painted wall cavities
Access cuts can disturb lead paint. We follow EPA Lead-Safe Certified containment and cleanup on every pre-1978 repipe.
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Slab-on-grade construction common in the area
Under-slab copper fails from the outside in. We reroute overhead during the repipe so future leaks are accessible instead of buried in concrete.
Galvanized to PEX in a 1955 bungalow
Problems a repipe solves for Covina homes
Signs you need repiping in a Covina house usually show up as a pattern, not a single event. Here are the four we see most, and what happens if you keep patching instead.
Problem
Pinhole leaks that keep coming back in different spots
Each leak means another drywall cut, another water bill spike, and another chance of mold behind the wall. Patching one pinhole does nothing about the ten others forming in the same pipe.
Our Fix
We replace the entire supply system in PEX or copper so there is no aging pipe left to fail. One project, one permit, one inspection, and the leak cycle ends instead of resetting every few months.
Problem
Brown or metallic-tasting water in the morning
That discoloration is rust and scale from the inside of galvanized steel. It stains fixtures, shortens the life of your water heater, and means the pipe wall is thinning toward a failure you cannot see.
Our Fix
New PEX or copper lines eliminate the rust source entirely. We flush the system, replace the water heater connectors, and if hard water is the root cause, we quote a softener so the new pipe stays clean.
Problem
Water pressure that drops when two fixtures run
A 3/4-inch galvanized line can close down to half its original diameter from buildup. Showers go weak, the washing machine takes forever to fill, and the dishwasher cycles long.
Our Fix
We size the new lines to the fixture load, not to what was there in 1962. After a repipe, you get full flow at the shower while the kitchen sink runs, which is what the plumbing was supposed to do all along.
Problem
A slab leak under the living room or hallway
Under-slab copper fails from the outside in, and the repair means jackhammering finished flooring. Left alone, it warps hardwood, lifts tile, and drives up the water bill every month.
Our Fix
We locate the leak, then reroute the supply lines through the attic or walls during the repipe so future failures are accessible and cheap to fix. No more concrete demolition for a $30 fitting.
Why Covina homeowners repipe instead of patch
A repipe is a one-time project that ends the cycle of emergency repairs, water damage, and rising water bills. Here is what changes once the new lines are in.
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Ends repeat leak repairs
Three pinhole leaks in two years means the pipe wall is failing everywhere, not just where it dripped. New PEX or copper removes the whole failure surface. Covina homeowners who repipe typically stop calling us for supply-line leaks entirely, which is the point.
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Restores water pressure
Galvanized pipe closes up with rust and hard water buildup until a 3/4-inch line flows like a straw. After a whole house repipe Covina CA, shower pressure usually jumps back to what the fixture was rated for, and you stop waiting two minutes for hot water at the kitchen sink.
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Protects slab and drywall
A slab leak under a Covina living room can run $4,000 to $12,000 in tear-out, drying, and flooring once it surfaces. Repiping moves the vulnerable runs overhead or through the attic where a future drip is visible and cheap to fix instead of buried in concrete.
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Raises resale value
Buyers and home inspectors flag galvanized and polybutylene supply lines immediately. A documented repipe with permits on file in Los Angeles County answers that objection before it becomes a credit request, and it usually pays back more than the cost of the work at closing.
Licensed, insured, and accountable
Licensed & Certified
- California Contractor License (C-36 Plumbing) — issued by California State License Board
- EPA Lead-Safe Certified — issued by U.S. Environmental Protection Agency
- Backflow Prevention Certification — issued by Los Angeles County Health Department
- IAPMO-certified PEX fittings — issued by International Association of Plumbing and Mechanical Officials
- OSHA safety compliance — issued by Occupational Safety and Health Administration
Verified Reviews
Google ★★★★★4.9
Quoted our Covina repipe on a Tuesday, started the following Monday, done in five days. They patched the drywall and hauled off every bit of old galvanized pipe. Pressure at the shower is night and day compared to before.
Yelp ★★★★★4.8
We had a slab leak and were told by another company we needed jackhammering. A1 rerouted the lines through the attic instead and saved us thousands in flooring. Permit and inspection were handled without us chasing anything.
BBB ★★★★★4.9
Straight answer on PEX versus copper, quoted both, no pressure either way. They showed up when they said they would and left the house cleaner than they found it. Water bill dropped about $30 a month after the repipe.
Google ★★★★★5.0
Third pinhole leak in two years and I was done patching. A1 repiped the whole house in copper, replaced every shutoff, and pressure-tested it while I watched. Ten years in business and it shows in how they run a job.
Repiping experience you can check
A1 Plumbing Covina CA has been repiping homes in the San Gabriel Valley since 2016, which means 10 years of Covina slab leaks, attic runs, and 1950s galvanized systems. Our technicians hold the California Contractor License (C-36 Plumbing) and work to Uniform Plumbing Code (UPC) standards on every job. We carry EPA Lead-Safe Certified training because pre-1978 Covina homes can have lead paint around the access cuts, and we test and document pressure on every repipe before we call it done.
- 10 years repiping Covina and Los Angeles County homes, from 900-square-foot bungalows to two-story builds.
- California Contractor License (C-36 Plumbing) with permits and inspections handled in-house.
- EPA Lead-Safe Certified crews for pre-1978 homes with painted wall cavities.
- IAPMO-certified PEX fittings and UPC-compliant copper soldering on every tie-in.
- Pipe camera inspection and leak detection equipment used to confirm the diagnosis before we quote.
What Covina customers say
Real experiences from customers who chose our Whole-Home Repiping services.
“We had three pinhole leaks in 18 months, all in the same wall. A1 quoted a full repipe with PEX and had it done in five days. They patched the drywall better than the last guy who worked on the house. Shower pressure is finally normal and I stopped checking under the sink every morning.”
M
Marisol R.
Homeowner, Downtown Covina
“Our 1968 house still had galvanized pipe. Water came out brown every morning. They repiped the whole place in copper, replaced the shutoffs, and pressure-tested it while I watched. Permit and inspection were handled for us. Cost came in right where the quote said.”
D
Danny K.
Homeowner, Charter Oak
“Slab leak in the living room floor was the last straw. They rerouted the lines through the attic instead of jackhammering, added a softener for the hard water, and had water back on every evening. Six months later, no leaks and the water bill dropped about $30 a month.”
P
Priya S.
Homeowner, West Covina
Repiping questions Covina homeowners ask
Real answers to the questions we hear most often from local homeowners and property managers.
How much does whole home repiping cost in Covina CA?
Typical 2026 pricing in Covina runs $4,500 to $12,000 for a full repipe, with most single-story homes landing between $6,000 and $8,500. Square footage, slab versus attic runs, fixture count, and whether you choose PEX or copper drive the number. A 1,200-square-foot house with eight fixtures is a very different job than a 2,400-square-foot two-story with three bathrooms.
How do I know if my Covina home needs repiping?
Three or more pinhole leaks in five years, brown or metallic water in the morning, and pressure that drops when two fixtures run at once all point to failing supply lines. If your home was built before 1975 and still has galvanized steel, the pipe is past its service life regardless of how it looks from outside. A pipe camera inspection confirms it.
How long does house repiping take in Covina, California?
Most Covina house repiping in Covina, California takes four to seven working days from first cut to final inspection. Rough-in is two to three days, fixture tie-ins and pressure testing take one day, and drywall patch plus inspection fill the rest. You keep water service overnight and on weekends, and we restore it each evening during the project.
Is PEX or copper better for repiping in Covina?
PEX wins on cost, speed, and freeze tolerance, and it does not develop pinhole leaks from Covina's hard water the way thin copper can. Copper wins on resale perception and heat tolerance near the water heater. We install both to UPC standards and quote them side by side, so you can pick based on budget and how long you plan to own the house.
Other work that pairs with a repipe
Emergency Plumber
A burst pipe at 2 a.m. cannot wait for a scheduled repipe. We shut the water down, stop the damage, and document the failure so it feeds straight into your repipe scope when you are ready to schedule.
View Emergency PlumberDrain Cleaning
Supply lines and drains age together. If we are already opening walls for a repipe, we run a drain snake or camera through the waste lines to catch root intrusion or hard water buildup before the drywall goes back up.
View Drain CleaningSewer Line Repair
Old Covina homes often need supply and sewer work in the same decade. We inspect the lateral while the repipe is open, so you are not paying twice for access and excavation on the same property.
View Sewer Line RepairTrenchless Sewer Repair
When the sewer lateral under your lawn or driveway has failed, trenchless lining avoids tearing up landscaping. It pairs well with a repipe because both projects reset the home's water and waste systems at once.
View Trenchless Sewer RepairHydro Jetting
Hydro jetting scours grease and scale out of drain lines that a snake cannot reach. If your repipe uncovers slow drains, we jet the branch lines before closing the walls so the whole system flows clean.
View Hydro JettingSlab Leak Repair
A slab leak is often the event that triggers a repipe. We locate it with leak detection equipment, repair or reroute the line, and if the slab piping is failing broadly, we move the runs overhead during the repipe.
View Slab Leak RepairCall A1 Plumbing Covina
Reach us at 626 687 0334 any hour of the day. Our office answers from 7 a.m. to 7 p.m. on weekdays, and emergency dispatch runs 24/7 for leaks, backups, and gas calls. Tell us what is happening and we will give you a straight answer and a flat price before anyone heads your way.
A1 Plumbing Covina CA
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Phone
626 687 0334 -
Address
4715 N Vecino Dr, Covina, CA 91722
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Hours
Mon–Fri: 7AM – 7PM
Sat: 8AM – 4PM
Sun: Emergency Only
24/7 Emergency Available