Repipe Services

EZ Plumbing has been repiping LA homes since 1989 under California license C-36 #583868. We use Type L copper for the runs that benefit from copper’s durability and PEX-A for the runs where PEX’s flexibility and fewer joints make more sense — usually a hybrid for most jobs. We repipe both directions: full whole-house repipes for homes with galvanized supply lines from the pre-1960 era, and slab-leak reroutes that bypass failed under-slab copper in 1960s-1980s homes. To talk through what your home needs, call (818) 908-2710. The rest of this page covers when a repipe is actually warranted (and when it isn’t), the LA housing eras that need repiping most often, how copper and PEX compare in real use, what the job actually takes, what it costs, and what insurance does and doesn’t cover.

Signs Your Home Actually Needs a Repipe

“Needs a repipe” is a strong claim. The decision should be data-driven, not based on a sales pitch. These are the signals that mean the conversation is worth having seriously.

Recurring pinhole leaks in the same home. The first one is bad luck; the second is a coincidence; the third is a pattern. Once you’re patching multiple pinholes across different runs over a year or two, you’re in a failure cascade — the conditions that caused the first leak are still present and the rest of the system is the same age. Continuing to patch is throwing good money after bad. We see this most often in 1960s-1980s slab-foundation homes with under-slab copper.

Low water pressure across the whole house, not just one fixture. Galvanized steel supply lines scale internally over decades; the inside diameter of a 3/4-inch pipe can be 1/4 inch or less by year 50-60. The result is house-wide pressure drop and surge problems — pressure works fine when one fixture is running but plummets the moment a second turns on. Once you can verify the city pressure at the meter is adequate, the bottleneck is your supply lines. Galvanized that’s been in service since pre-1960 is well past serviceable life.

Rust-colored or metallic-tasting water from cold taps after sitting overnight. Galvanized scaling releases rust particles into the water; the morning’s first draw is the most concentrated. If your water runs clear after a few minutes but starts rusty, the rust is coming from your supply lines, not the city water.

Pipes that are clearly past warrantied service life. Galvanized has a 40-50 year service life under normal conditions; pre-1960 homes are well into and often past that. Copper varies — Type M (thin wall) typically lasts 40-60 years, Type L (medium wall) 60+ years. Polybutylene (gray plastic, mid-1980s to late 1990s) was a known failure-prone material and is essentially always recommended for replacement when found. If your home has materials known to be past life, the repipe conversation is appropriate.

Slab leak that’s been detected and the home has copper running under the slab. Spot-repairing a slab leak with a single segment replacement works if the rest of the system is in good condition. But if the first slab leak is the first failure of a system that’s now 40+ years old, the second and third leaks are usually coming within the next few years. A full repipe that bypasses the under-slab runs entirely (rerouting supply lines through attic and walls) is often the right answer once you’ve had one slab leak.

What we would not consider a repipe trigger: a single fixture with low pressure (likely a clogged aerator or angle stop), a single pinhole leak in a new copper installation (could be a manufacturing defect or installation error rather than a systemic problem), discolored water that traces to a recent water-main flush by LADWP (city-side, not yours), or general “old house” anxiety. The decision should be based on documented failures, measured pressure, and known material life — not pressure from a salesperson.

Copper vs PEX-A — Which Material for Which Application

Both materials are code-compliant in California and both are warranted long-term by manufacturers. The right choice depends on the application, not on dogma.

Copper (Type L)

Soldered copper has been the residential supply-line standard for decades. Advantages: long service life (60+ years for Type L under normal conditions), heat-resistant (matters for the few feet of hot supply between water heater and first branch), well-understood material, easy to inspect visually. Disadvantages: more joints in a typical installation (each elbow, tee, and fitting is a sweat-soldered or press-fit connection), more expensive material than PEX, slightly slower installation, vulnerable to acidic water and aggressive soil chemistry over very long timeframes. We typically use copper for the visible runs between the water heater and the first manifold, in mechanical rooms where the installation is exposed and inspectable, and for hot water lines where the temperature stability of copper is preferred.

PEX-A (cross-linked polyethylene, Type A)

PEX-A is the highest-grade PEX, made by the Engel method. Advantages: flexible (runs around obstacles with fewer fittings, often a single continuous run from manifold to fixture with no joints inside walls), faster installation, lower material cost, resistant to freeze damage (expands rather than splits), warranted 25 years by major manufacturers. Disadvantages: cannot be exposed to UV light (must be inside walls or covered), less heat-resistant than copper (needs to be kept at least 18 inches away from the water heater connection), and unlike copper, you can’t visually inspect inside walls for problems decades later. We typically use PEX-A for the in-wall runs through the house — the bedrooms, bathrooms, kitchen branch lines — where the flexibility-and-fewer-joints argument is strongest. For attic-and-wall reroutes that bypass slab failures, PEX is usually the right material because the run is long and circuitous, and minimizing joints inside the wall cavity is important.

The hybrid approach we use most often: Type L copper from the water heater out to the first manifold and for any exposed mechanical-room runs, PEX-A for the in-wall branch runs to fixtures. This combines copper’s durability for the high-value short runs with PEX’s flexibility-and-fewer-joints advantage for the long in-wall runs. We size manifolds for the home’s actual fixture count plus 25 percent headroom for future additions.

The LA Housing Eras That Need Repiping Most Often

Pre-1960 homes with galvanized supply lines

Hancock Park, Larchmont, Hollywood Hills, Echo Park, Silver Lake, Mid-Wilshire, older West Hollywood, older Pasadena, parts of Beverly Hills. These homes were built with galvanized steel supply lines, which scale internally over 40-50 years until the inside diameter is significantly restricted. Modern symptoms: low pressure house-wide, rust in morning-first water, occasional pinhole leaks at threaded joints. Whole-house repipe is usually the right answer; spot-repairing one galvanized run while leaving the rest doesn’t solve the systemic problem. The repipe typically routes new copper-and-PEX supply through the attic and walls, bypassing the original galvanized that’s left in place to avoid the cost of demolition to remove it.

1960s–1980s slab-foundation homes with under-slab copper

Tract Valley homes, mid-century Westside developments, parts of Hollywood Hills, Studio City and Sherman Oaks tracts. These homes have supply lines running through or under the concrete slab in soft-temper copper. After 40-60 years, the combination of soil chemistry, contact with concrete, and proximity to post-tension cables or rebar leads to pinhole leaks. The first slab leak is usually the warning. The full-repipe response is to abandon the under-slab runs, route new supply lines through the attic and down walls to each fixture, and isolate the failed under-slab runs at the meter end. This avoids the cost of repeatedly opening the slab as new leaks develop.

Mid-1980s to mid-1990s homes with polybutylene

Less common in LA than in some other markets, but it exists. Polybutylene supply pipe (a gray flexible plastic, used roughly 1978-1996 before manufacturers were sued out of the residential market) has a known failure mode — the material reacts with chlorinated water and embrittles from the inside, eventually splitting at fittings. There’s no economical repair; if your home has polybutylene, plan a full repipe. The class-action settlements that paid for polybutylene replacement are now long closed. If you suspect your home has it, we can confirm during a site visit — the material is distinctive once you know what to look for.

How Long the Job Actually Takes

For a typical LA single-family home — say 3 bedrooms, 2 baths, around 1,500-2,500 square feet — a full repipe is 2 to 4 working days. The work breaks down roughly as: day one is layout, demolition access points (small drywall openings at strategic locations), and running the new lines through attic and wall cavities. Day two is connecting the new lines to manifolds and to each fixture. Day three is the tie-in at the water heater and at the meter side, pressure testing, and inspection. Day four (when it occurs) is drywall patching ready for paint and final touch-ups.

Water shutoff during the job is minimized. You’ll typically lose water service for 4-8 hours on the day of the tie-in, not for the full duration of the project. We schedule the tie-in for a single day where you can plan around it; the rest of the work happens with the new lines being run while the old system is still pressurized.

Smaller condos or partial repipes (one bathroom, one wing) typically run 1-2 days. Larger custom homes with multiple stories, multiple manifolds, or unusual routing can extend to a week. We give you a realistic project schedule before any commitment.

Cost Ranges for Repipe in Los Angeles

What drives the variance: square footage and number of fixtures (more bathrooms = more branch runs), single-story vs multi-story (multi-story is more complex routing), slab vs raised foundation (slab reroutes through attic add complexity), material choice (full copper costs more than copper-PEX hybrid which costs more than full PEX, though we rarely recommend full PEX), and the extent of drywall opening and patching needed.

For a typical LA single-family repipe (3BR/2BA, 1,500-2,500 sqft, hybrid copper-PEX), the all-in cost — materials, labor, permit, drywall patching ready for paint, and final inspection — typically runs in the $4,500-$18,000 range. Smaller condos or partial repipes (1-2 bathrooms): $2,500-$6,000. Larger custom homes with unusual routing or extensive copper-heavy specifications: $15,000-$36,000+. We provide a written quote after walking the home and identifying the specific routing, materials, and access requirements. Phone quotes are not honest commitments — they’re ranges.

What you should not pay for: a “free” repipe estimate that requires you to sign a contract on the spot before you’ve had time to evaluate other quotes. Reputable repipe contractors give you the written quote and let you compare. If anyone pressures you to sign during the initial visit, that’s a sign to get a second quote.

Will Insurance Cover a Repipe?

Mostly no, with important exceptions. Homeowner’s insurance is generally not in the business of paying for preventive maintenance, and a repipe is technically preventive (or, at most, repair of a system that has been failing gradually). Insurance considers the supply system to have a normal service life and replacement of an end-of-life system to be a homeowner responsibility, not an insured event.

What insurance typically does cover: the water damage caused by a sudden, accidental pinhole or burst — the wet drywall, ruined flooring, damaged contents, mold remediation. If a pinhole leaks behind a wall for three weeks and ruins the kitchen ceiling below, the kitchen ceiling repair is generally covered. The repipe that prevents the next pinhole leak is generally not. The dividing line is “damage caused by the failure” versus “the system itself.”

What insurance increasingly does not cover: homes with known failed materials (polybutylene, certain older galvanized) may have their insurance non-renewed or limited in coverage until the system is replaced. If your insurance company sends a non-renewal notice citing plumbing materials, the repipe is essentially required to maintain coverage at all — and the cost of the repipe is your responsibility even though it’s being driven by the insurer.

Documentation matters either way. We provide full documentation of the repipe — permit, inspection records, materials used, warranty information — for your home file. This shows up at home sale (a documented recent repipe is a major selling point) and at any future insurance shopping (some insurers offer better rates for homes with documented recent supply-line replacements).

Permits, Inspections, and What Has to Happen Behind the Scenes

Every whole-house repipe in the City of Los Angeles requires an LADBS plumbing permit. We pull the permit before work begins. Pressure testing is required after rough-in (before any drywall is closed back up) — the inspector verifies the new system holds pressure. After the drywall is patched and the system is in service, a final inspection closes the permit. The permit-and-inspection record stays with the property forever; it’s how you prove the work was done correctly.

We coordinate drywall patching as part of the project — patches at access openings sanded and ready for paint, matched as closely as practical to existing texture. Final paint is generally not included unless arranged separately, because matching aged paint colors and finishes is a different vendor’s job and the customer usually has preferences about color, sheen, and timing.

When You Don’t Need a Full Repipe

A single pinhole leak in a copper system that’s otherwise functioning normally — spot-repair it, monitor the rest of the system, and reassess only if a second failure occurs within a year or two. Single-fixture low pressure — almost always a clogged aerator, angle stop, or fixture supply tube. Rust in the water only after extended vacation — sometimes water sitting in lines develops a slight metallic tint without being a systemic problem; flush thoroughly and see if it clears. House-wide low pressure with no other symptoms — first verify the meter-side pressure (we can test it during a service visit), because it’s sometimes a city-side issue rather than yours.

A repipe is a $5,000-$18,000 project for most LA homes. We’d rather you spend that money once when it’s actually justified than be pushed into it prematurely. If the data doesn’t support a repipe, we’ll tell you.

Where We Service for Repipe

Dedicated repipe pages: Los Angeles proper, Beverly Hills, West Hollywood, Studio City, Burbank, Glendale, Pasadena. Also Santa Monica, Culver City, Hollywood, Silver Lake, Echo Park, Highland Park, Eagle Rock, North Hollywood, Sherman Oaks, Encino, Tarzana, Woodland Hills, Canoga Park, Northridge, Chatsworth, Granada Hills, Reseda, West Hills, Van Nuys, Venice, Marina del Rey, Los Feliz.

Frequently Asked Questions

Call EZ Plumbing for a Repipe Consultation

Call (818) 908-2710 or schedule online for a repipe consultation. We walk the home, identify the existing materials and condition, and give you a written quote — no high-pressure sales, no contract pressure during the visit. California license C-36 #583868, serving LA since 1989.

Repipe Services in Los Angeles

EZ Plumbing provides Repipe across the greater Los Angeles area for homes, apartment properties, HOAs, retail centers, and managed commercial buildings. View our Google Business Profile for reviews, business details, and directions.

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