Brown water first thing in the morning, a shower that dribbles when someone flushes, pinhole leaks that keep showing up in different walls, or a second slab leak in as many years: these are the signs that patching the plumbing in a Fontana home has stopped making sense. At that point the real choice is between rerouting the problem section or replacing the supply piping throughout the house.
Drain Edge Rooter handles whole-house repipes and targeted reroutes for Fontana homeowners and landlords. Our shop is at 619 E South St, Rialto, CA 92376, a few minutes from the Fontana city line, and owner Isaiah Infante runs every job under California C-36 plumbing contractor license #1078977.
Seeing rusty water, low pressure, or repeat leaks? Call (909) 927-3194 and tell us roughly when the house was built and what the pipe looks like where it comes out of the wall under a sink. That alone narrows things down quickly.
This page covers the water supply lines that bring pressurized water to your fixtures. For sewer and drain lines, see CIPP sewer lining and camera inspection in Fontana.
Reroute or Full Repipe?
A reroute replaces one failing section, usually a hot or cold line under the slab, with new pipe run through the attic or walls. It fixes a specific leak and abandons the old pipe in place. A whole-house repipe replaces every supply line from the main shutoff to each fixture. Reroutes make sense when the rest of the system is sound. A full repipe makes sense when the pipe itself is failing everywhere, and more patches will just move the leak to a new spot.
What Fontana Homes Are Plumbed With, by Era
The age of your neighborhood is the best single predictor of what is inside your walls.
1940s through the 1960s: galvanized steel
Fontana’s first big housing boom followed the opening of the Kaiser steel mill in the 1940s, and much of the housing in central Fontana, around downtown and the Sierra Avenue corridor, and south of the 10 dates from that era and the decades right after. Homes from that period were commonly plumbed with galvanized steel: gray, threaded pipe that rusts from the inside. After 60 or more years, the inside diameter shrinks with corrosion and scale until pressure drops and water runs brown. Threaded joints are the weak point and tend to leak first. Galvanized at that stage cannot be fixed piece by piece. Many of these homes have also had partial updates over the years, so we often find a patchwork of galvanized, copper, and plastic with dissimilar-metal connections that corrode on their own.
1970s through the 1990s: copper under the slab
Homes in Southridge Village and many other tracts built during Fontana’s 1980s and 1990s growth are usually slab-on-grade with copper supply lines running under the concrete. Copper lasts a long time, but it can wear through where it rubs against concrete or gravel, where water velocity is high at bends, and on hot lines that expand and contract every day. The first slab leak in one of these homes is often a one-off. The second or third usually means it is time to reroute the affected lines overhead or repipe.
2000s and newer: PEX and newer copper
Much of north Fontana, including the Sierra Lakes area and the newer tracts above the 210, was built with PEX or newer copper. Whole-house repipes are rare here. When we work in these homes, it is usually a reroute after a nail or screw puncture, a failed fitting, or a remodel.
Water Chemistry in Fontana
Most of the city is served by Fontana Water Company, with parts of the west side on Cucamonga Valley Water District and some eastern areas on West Valley Water District. Fontana Water Company’s 2025 Consumer Confidence Report lists average hardness of 151 mg/L in its groundwater and 134 mg/L in treated surface water, which is hard water by the U.S. Geological Survey scale. Cucamonga Valley Water District’s 2025 report lists an average of 125.5 mg/L.
Hard water does not usually cause copper to fail by itself, but it narrows old galvanized pipe faster, builds scale on valves and fixtures, and adds to wear wherever flow is restricted. That is one reason the galvanized homes in older parts of Fontana tend to show low pressure before they show leaks.
Signs Your Fontana Home Needs Attention
- Brown or rust-colored water, especially after the water sits overnight
- Pressure that is weak at several fixtures, not just one
- Pinhole leaks or green spots on exposed copper
- A slab leak, especially a second one
- Warm spots on the floor, or a water bill that jumps without explanation
- The sound of running water when everything is off
- Gray threaded pipe at the water heater or under sinks
- Selling or buying an older home where the inspector flagged galvanized pipe
Some of those signs point to a hidden leak first. Our slab leak detection in Fontana finds the leak location before anyone decides on a reroute or a repipe.
Slab Leak Reroutes
When a line under the slab fails, there are two ways to fix it. One is to break the concrete, repair the pipe where it leaked, and patch the floor. The other is to abandon that line and run new pipe overhead. Spot repairs can make sense for a single leak on otherwise healthy pipe, especially if the leak is easy to reach. A reroute is usually better when the pipe has leaked before, the leak is under finished flooring or cabinets, or the line is a hot line that will keep stressing. Most reroutes in Fontana single-story homes go through the attic and drop down inside walls to the fixtures, with small openings at each connection.
PEX or Copper?
We install both. For most Fontana repipes, PEX is the practical pick: it is flexible enough to snake through walls with fewer openings, holds up well to hard water, resists freeze damage better than copper, and usually costs less to install. Copper is still a solid choice if you prefer it or if a specific part of the house calls for it. We explain the trade-offs and let you choose.
What a Whole-House Repipe Covers
- New supply lines from the main shutoff to every fixture, hot and cold
- New shutoff valves (angle stops) at sinks and toilets
- Connections at the water heater
- New hose bibs where they are part of the system
- Pressure testing before walls close
- Permit and city inspection
- Drywall patching at access openings
The Fontana Permit Process
A whole-house repipe and most reroutes need a plumbing permit from the City of Fontana Building and Safety Division. The city takes applications through its Build Fontana online portal. A city inspector checks the new piping and the pressure test while the work is still exposed, before walls are closed. We pull the permit, schedule the inspection, and are on site for it. A permitted, signed-off repipe is worth having on record when you sell, refinance, or file an insurance claim later.
Drywall Openings and Patching
Repiping does require openings in walls and sometimes ceilings, though with PEX they are smaller and fewer than most people picture. We cover floors and furniture, plan routes to keep openings to a minimum, and after the inspection we close the openings with drywall patches so they are ready for texture and paint. Let us know at the start if you also want texture and paint matched so we can plan for it.
Timeline
A single reroute is usually done in one day. A whole-house repipe on a typical single-story Fontana home tends to run a few days including the inspection and patching. Two-story homes and larger floor plans take longer. In most cases you can stay in the house, and we restore water at the end of each day when we can. You get a schedule before we start.
Getting Ready
- Clear a few feet of space along walls where we will open drywall
- Move valuables and fragile items out of the work areas
- Make sure we can reach the attic hatch and the main water shutoff
- Plan for short water shutoffs during the day
- Keep pets in a separate room or out of the house
Pricing
Every repipe is priced individually. The main factors are the number of bathrooms and fixtures, single- or two-story layout, PEX or copper, attic access, and the amount of patching. A reroute depends on how far the new line has to run. We give you a written price after the inspection, before any work begins.
How We Run a Repipe
- Call: describe the symptoms and the age of the house.
- Inspection: we check pipe material, pressure, and any active leaks at your Fontana home, and locate slab leaks first if needed.
- Options and price: reroute or full repipe, PEX or copper, in writing.
- Permit: filed with the City of Fontana.
- Work: install, pressure test, and city inspection.
- Close up: drywall patches and a final walk-through with you.
Where We Repipe in Fontana
- Central Fontana, downtown, and the Sierra Avenue corridor: the oldest housing, where galvanized replacement is most common
- South Fontana below the 10: mid-century homes, often with mixed galvanized and copper
- Southridge Village: slab homes from the 1980s and 1990s, where copper slab leaks lead to reroutes
- North Fontana and Sierra Lakes: newer homes where we mostly handle targeted reroutes and repairs
We also serve Rialto, Colton, San Bernardino, and Rancho Cucamonga. See the Fontana service area page for our other Fontana services.
Why Choose Drain Edge Rooter
- Next door: our shop is on East South Street in Rialto, close to every part of Fontana.
- Licensed and permitted: C-36 #1078977, with city permits and inspections on every repipe.
- Find it first: we locate leaks before recommending a reroute or a repipe.
- Reviews you can check: read our Google reviews from Inland Empire customers before you call.
Fontana Repiping FAQ
How can I tell if my house has galvanized pipe?
Look at the pipe coming out of the wall under a sink or at the water heater. Galvanized is dull gray with threaded joints. A magnet will stick to it. Copper is reddish-brown, and PEX is colored plastic tubing.
Should I reroute or repipe after a slab leak?
If it is the first leak and the rest of the system looks good, a single reroute is often enough. If you have had more than one, or the house still has galvanized pipe, a full repipe usually costs less over time.
Is PEX safe for drinking water?
Yes. PEX used for potable water is certified for that purpose and is allowed under the California Plumbing Code.
Do I have to move out?
Usually not. Most families stay home, with water off for parts of each workday.
Will you break up my floors?
For a reroute or repipe, no. We run new lines through the attic and walls. Floors are only opened for a spot repair under the slab.
Do you patch the drywall?
Yes, we close all access openings with drywall patches. Tell us in advance if you want texture and paint matched.
Does homeowners insurance cover a repipe?
Policies often cover water damage from a sudden leak but not the cost of replacing old pipe. Check with your insurer. We provide documentation if you file a claim.
Do I need a permit in Fontana?
Yes, for repipes and most reroutes. We pull it through the City of Fontana and handle the inspection.
Are you licensed?
Yes. Drain Edge Rooter holds California C-36 plumbing contractor license #1078977.
Schedule a Repipe or Reroute Inspection in Fontana
Whether it is rusty water in a mid-century house near Sierra Avenue or a repeat slab leak in a Southridge home, Drain Edge Rooter will find the cause, lay out your options, and do the work with a permit.
Call (909) 927-3194
Drain Edge Rooter · 619 E South St, Rialto, CA 92376 · (909) 927-3194 · CA C-36 #1078977 · drainedgerooter.com
Related: Slab Leak Detection in Fontana · Water Heater Repair in Fontana · Fontana
Repiping in Fontana: local notes
We work across Fontana, including downtown along Sierra Avenue, North Fontana, Southridge Village, Sierra Lakes and Hunter’s Ridge. The area has homes going back to the 1940s, when the Kaiser Steel mill drew workers to the area, plus large tracts built since the 1980s.
Repiping in Fontana usually means replacing galvanized or leaking copper lines. Rerouting through walls or the attic instead of under the slab is often the better long-term fix.
Whether you are near Foothill Boulevard (old Route 66), Fontana Park and the former Kaiser Steel land on the south side or anywhere else in Fontana, we are open 24/7, so call anytime at (909) 927-3194.