What a second pinhole in copper means in El Paso homes
A pinhole in a copper line, a brown stain spreading on the ceiling under a bathroom, or a water bill that climbed while every surface stayed dry all put the trouble on the supply side. Supply lines hold pressure around the clock, so water escapes whether anyone is home or not, and a drain only leaks while something upstream runs. If you are weighing PEX or copper pipes, you may already hold a repair invoice for the second leak in the same run.
Copper fails from the inside. A pinhole opens at one spot while the tube wall thins along the rest of that segment, so a second pinhole in one run points at the whole segment, since a repair at one spot leaves the thinned pipe on either side of it. Ask where the leak sits. A weeping solder joint is a repair at one joint, and pinholes through the tube wall in two places answer the copper pipe lifespan question for that run. If the copper at your water heater connections is weeping, the rest of the run is the same age. In a slab home from the 1970s through the 1990s the copper supply runs under or through the slab, so a warm patch on the floor in one place puts a hot line beneath it.
Older stock from the 1940s through the 1960s carries galvanized or early copper, and galvanized closes up from the inside with rust. The far bathroom loses pressure and the water runs brown for the first minute. The utility notes that rusting galvanized pipe inside homes is the typical cause of discolored water here, which puts the source in your house piping. Water in this county also tests moderately hard to hard, so scale collects in heaters, cartridges and fixture valves whichever pipe you pick, and a repipe does not change that. Intense sun degrades plastic left exposed, and an arctic front that drops temperatures well into the teens splits unprotected outdoor lines. Those two conditions decide where PEX may run. The mix inside one house decides the rest, because a repipe material comparison has to cover copper in one wing, galvanized in another and a partial repipe from years past. The best pipe for repiping is the one that suits each of those runs.
Call today when a hairline supply leak sits behind tile: the framing stays damp because nothing dries inside a wall, and the pipe repair turns into a wall rebuild. Until someone arrives, close the stop for that branch or the main shutoff and leave the wall closed.
If this sounds close but not quite your situation, diy vs. professional drain cleaning may be the better starting point.
How a pressure reading and a routing walk choose the pipe
Isolation comes first, because the first useful act is shrinking the problem to one segment. With everything in the house off, a screw on pressure gauge goes onto a hose bib and reads static pressure. A running fixture hides the real number, so nothing runs during the read. Next the main shutoff closes, and then the stops and branch valves close one at a time until the leak or the symptom stops. Above the slab, that sequence plus a quiet house to listen in narrows a leak to a branch. Under the slab, the decision is between breaking the slab at one point and rerouting that line overhead. Nothing gets opened until a segment is proven.
The gauge reading forks the scope. Static pressure from 45 to 70 psi is the normal band, and the pipe choice then rests on routing and materials. A reading above 80 psi is where fixtures, supply hoses and water heaters start failing early and where a pressure reducing valve is normally required, so the valve belongs in the repipe scope, along with a thermal expansion tank where the heater sits on a closed system. New PEX or new copper under uncorrected overpressure carries the same load that wore out the old pipe. A second fork comes from the run itself. One failed joint with sound tube around it is a repair at one joint. A second pinhole in the same segment makes the segment the scope, and where every run is the same age the question becomes whether to keep paying for spots or repipe once.
The comparison itself turns on four things, and none of them is a brand. Joints inside walls come first. PEX on a home run layout to a PEX manifold puts fewer of them behind drywall, and soldered type L copper puts one at every fitting. Heat and sun come second. Copper tolerates heat directly and sits fine in the open, while PEX has to stay out of sunlight and be protected where it passes through framing, which is where the pros and cons of PEX piping show up at a garage water heater and on any outdoor stub. Joining is third. PEX A takes expansion fittings, PEX B takes crimp rings, each with its own tool, and a dielectric union separates new copper from old galvanized. Future repair is fourth. Copper is rigid and costs more in material and labor, and PEX is flexible, so a later repair usually opens less drywall. Freeze exposure decides routing for both, so lines stay off exterior walls. Hard water leaves scale in heaters and valves whichever pipe wins, so treating the water comes before buying a second heater.
More detail on plumbing repair cost guide 2026 is on its own page.
Permit and inspection questions? Planning & Inspections is the office we coordinate with on every permitted El Paso job.
How a repipe visit runs
Questions, then isolation
The call starts with four questions: what you see, when it began, which pipe materials you can identify and where the main shutoff sits. Those answers set the order of the visit. On site the house goes quiet, a screw on gauge goes onto a hose bib, and static pressure is read with every fixture off. Then the main shutoff closes, followed by stops and branch valves one at a time until the symptom stops. Only then does a wall or floor get considered for opening. You can watch the sequence and close the valves with us.
Approval before any cut
Once you approve the written scope, isolation comes first, with water off to the whole building or only the affected branch and the lines drained. The main operation follows in trade terms. Type L copper is cut, cleaned and soldered, or PEX runs from a manifold as home run lines joined with expansion fittings or crimp rings, protected where it passes through framing. Copper meeting galvanized gets a dielectric union. If a corroded fitting or a second failing segment turns up behind the opening, work stops and you see it before anything more is cut.
Gauge back on the bib
Before we leave, the gauge goes back on the same hose bib with everything off and has to settle inside 45 to 70 psi. That is the reading taken at the start, so before and after sit side by side. Each new fitting is watched while the line pressurizes, then every fixture on the branch is run and the heater connections are checked for weeping. We walk you through each opening and show which valve closes which branch. You keep the written scope listing the material, the joining method and anything changed after approval.
Why local routing and joining habits matter on a repipe
Permits on a repipe are the local authority's call. A whole house repipe usually needs one, a like for like faucet or supply hose swap usually does not, and the authority makes the final decision. Work outside the city limits can fall under a different authority, so the address decides who to ask. A crew that works here plans for that up front and leaves fittings exposed until the answer is known, because a joint that has to be seen before drywall closes costs little to leave open and a great deal to open again.
An unfamiliar crew tends to get exposure wrong first. A repipe planned from cold-climate habit runs PEX through exterior walls or leaves it bare beside a garage water heater. Intense sun degrades exposed plastic, and an arctic front that drops temperatures well into the teens splits unprotected lines. Here the ground does not freeze deeply, so the risk sits above ground, at exposed pipe, hose bibs and outdoor stubs, and routing has to keep supply lines inside the heated part of the house.
Joining is the second mistake. Houses in this county mix galvanized, copper and early plastic, and new copper joined straight to galvanized without a dielectric union starts corroding at that joint. A push fit fitting closed inside a wall is a leak with no access. Ground is the third. Caliche hardpan slows trenching for a lateral or a yard line, so a dig planned on soft soil runs slower than expected.
Scheduling follows the physics. Water escaping under pressure gets a same day visit, and a material comparison for a house with no active leak waits for a scheduled one. Time on site then goes to the runs you cannot see, so the walk covers the heater connections, the hose bibs and every wall that has been opened before, since the material decision is made run by run.
Our page on benefits of water softeners covers that side of the work in more depth.
Plumbing code in most jurisdictions traces back to the Uniform Plumbing Code maintained by IAPMO, it's the rulebook behind our permit work.
Working with Bedrock Plumbing El Paso on a repipe
From call to visit
You call and we ask what you can see, when it started, and which pipe materials show at the water heater and the hose bib. Pressurized water loss brings a technician out the day you call. A repipe assessment for a property without an active leak receives a scheduled appointment. You hear the arrival plan on that same call. If the job ahead of yours runs long, you get a phone call about the change before your window passes, and the visit order resets around which water is still running.
Protecting floors and walls
Before a wall opens, the main shutoff is closed and the branch is drained so the cut releases no water. Access holes are cut only as large as the fitting needs, and plastic sheeting and drop cloths cover the floor and furniture within reach. Old copper, galvanized and drywall cuttings go out with us. Pressure comes back up with the opening still exposed and watched, and the last thing done is a sweep of the floor and a walk with you to every opening.
What moves the scope
Access moves the scope furthest, meaning whether reaching the pipe means a finished wall, tile, a ceiling below or a slab, and restoring that surface. Excavation depth and length come next, then one joint against the whole segment, which the condition of the rest of the run decides. Matching old pipe to new, fixture or heater grade and after hours dispatch follow. You control fixture grade, access and adjacent work through the same opening. The written scope states what happens if the opening finds more, and you approve it before work starts.
How technicians are checked
A new technician rides with a lead before working alone, and the lead signs off on named tasks. Those include reading static pressure at a hose bib with everything off, making a crimp ring or expansion fitting joint, and joining copper to galvanized with a dielectric union. The crew reads local plumbing rule changes together. On a house that mixes several pipe materials, a second technician looks at it before a scope is written.
You Have Questions,
We Have Answers
Choose PEX for concealed runs behind finished walls and copper for exposed stubs near heat or sun. PEX-A tubing bends around framing in long sweeps, which removes many elbows, while copper needs a fitting at every turn. Mixed repipes are common, with PEX through the walls and short copper sections at the heater connections. Rigid copper also holds its line across open spans, and horizontal PEX needs support clips at close intervals to stop sagging and noise.
Replacement pays off when copper has already pinholed in more than one place or the walls are open anyway. Sound copper with no leak history can keep serving for decades, so swapping it purely for material is hard to justify. Opening drywall, patching, and repainting usually cost more than the pipe itself. A repipe also gives the chance to add a pressure reducing valve and shutoff stops at each fixture, which often improves the house more than the tubing change.
PEX wins on flexibility, freeze tolerance and joint count, while copper wins on heat tolerance and sun exposure. PEX tubing expands slightly when water freezes inside it, so it often survives a cold snap that would split rigid copper. Copper resists chlorine and ultraviolet light better and does not sag between supports. Neither material is better in every location, so the answer changes from the garage wall to the bathroom wall to the hose bib stub.
Copper type L outperforms PEX where the pipe faces heat, sunlight or mechanical damage. CPVC also handles hot water and suits some retrofit work, since it glues with solvent cement and needs no special crimp tool. Its downside is brittleness, because older CPVC can crack when bumped or after years of heat cycling. Stainless flexible connectors serve the last stretch to a fixture. No single pipe beats PEX everywhere, so the location of each run picks the material.
Replacing copper supply lines with PVC is not appropriate for hot water and rarely used inside homes. Standard PVC softens as temperature climbs, and its pressure rating falls well below the rating printed at room temperature. Hot water lines from a heater would deform over time. PVC belongs mainly on drains, vents and buried cold yard lines. For house supply, the practical replacements are PEX, CPVC or new copper, matched to what each run has to carry.
Copper remains fully acceptable for new supply plumbing, and many plumbers still install it. Type L is the common wall thickness for interior supply, while type M is thinner and cheaper but wears through sooner. Soldered joints last when the tube is cleaned, fluxed and heated evenly. Lead-free solder is standard on drinking water lines. Copper stays common at water heater connections, exposed stubs and other spots where heat or sun would stress plastic tubing.
Run PEX where speed, fewer joints and a flexible route matter, and run copper where heat and exposure dominate. A PEX home run layout gives each fixture its own line from a manifold, so a single tap opening drops pressure less at the others. Copper trunk and branch layouts share lines and need more fittings. A repipe often labors less with PEX, but the exposed sections and heater tie-ins still suit copper.
PEX degrades in sunlight and cannot be installed where ultraviolet light reaches it for long. Insert-style fittings are slightly narrower inside than the tube, which trims flow at each connection. Rodents can chew through it, and a kink in PEX-B may need a cut-out. Water hammer can make loose runs thump against framing. Chlorine in the water supply also affects certain grades over time, so the label rating on the tubing matters.
Insurers raise concerns about PEX because of fitting failures, ultraviolet damage and installer skill. Rings crimped poorly, or fittings paired with incompatible tubing, can weep inside a wall for weeks before a stain shows. Tubing left in sunlight during construction weakens with no visible change. Policy terms differ from one carrier to the next, so ask your agent directly whether the material changes rates or coverage before choosing a repipe.
Underwriters watch PEX because a hidden joint failure inside a wall produces a long, slow water loss. Claims data from plumbing leaks tends to cluster around installation errors, so the concern targets workmanship as much as the tubing. Crimp rings that are off-center, gauged incorrectly or missing the go/no-go check are typical culprits. Copper carries its own pinhole history, which is why some carriers ask about pipe age on applications. Carrier rules vary, so ask your agent.
Why slab copper, garage heaters and caliche shape a repipe in El Paso
On one street in Upper Valley, a crew can find copper, plastic and older galvanized lines side by side, which is why the pipe for a repipe is chosen by what it has to join at each end. Slab homes from the 1970s through the 1990s carry copper under or through the slab and often put the water heater in a garage or closet, so any plastic run near an exterior garage wall needs sun protection. Newer subdivisions on the east and west sides run PEX from a manifold, so a repair there starts with finding the branch stop. Older brick, adobe and frame houses on raised floors can leave a crawlspace to work from, which slab homes never offer. Soil decides the rest. Sandy, gravelly mesa ground digs easily, dense clay and caliche layers slow yard line work, and finer alluvial soils hold more water around a buried line. Water hardness deposits mineral buildup in heater tanks and valve seats regardless of pipe material chosen.
Whether a repipe needs a permit, and what gets inspected before walls close, is decided by the authority at your address, so the sequence stays flexible and fittings stay visible until that answer is known. Ask before work starts, and ask the utility about anything on its side of the meter. Conditions outside the walls get their own attention. Intense sun degrades exposed plastic, so PEX that leaves the wall to reach a hose bib or an outdoor stub gets protection, or copper takes over that stub. Arctic fronts split unprotected outdoor lines and hose bibs, and most freezing nights are short and followed by mild days, which hides the damage until the pipe is under pressure again. Spring brings evaporative coolers back into service, and their supply lines and float valves scale up in moderately hard to hard water, so the cooler tie-in gets checked while the wall is open.
Plumbing Services in The El Paso Area
Explore our service area and locate Bedrock Plumbing El Paso with ease. We're proudly local and serve the surrounding neighborhoods with fast response and honest pricing. Use the map to check our coverage area, or call us and we'll confirm in seconds.
Address:
Bedrock Plumbing El Paso, 221 North Kansas St, Suite 700, El Paso, TX, 79901
Additional Services We Offer
- Benefits of Water Softeners
- DIY vs. Professional Drain Cleaning
- How to Prevent Frozen Pipes
- How to Shut Off Main Water Valve
- Hydro Jetting vs. Snaking
- Plumbing Financing Options
- Plumbing Inspection Checklist
- Plumbing Repair Cost Guide 2026
- Safe Drain Cleaning Products
- Signs You Need Sewer Repair
- Tank vs. Tankless Water Heaters
- Understanding Backflow Testing
Swapping a braided supply hose, draining a hose bib before a freeze and finding the main shutoff are homeowner jobs, and you do not need us for them. DIY stops at anything soldered, anything on the gas line, and anything behind a finished wall or under a slab. Supply pipe material is the limit of this work. A drain or sewer lateral is a different job, and if the first visit finds one, you are told on that visit, before any invoice exists.
Know when the leak or the question started and what changed just before it, such as a new heater or a freeze. Look at the pipe at the water heater and note whether it is copper, plastic or galvanized steel. Find the main shutoff and say whether anyone is home. The age of the house helps, and so does a hose bib reading if you own a gauge.
Last reviewed September 2026 by Dave Parker, Owner.