Pipe Repair & Installation

Pipe Repair and Repiping in Pasadena and the San Gabriel Valley

Much of the housing stock across Pasadena, Altadena, Alhambra, and San Marino was built decades before copper and PEX became standard, which means a lot of homes in this area are still running on galvanized steel or cast-iron supply lines. Galvanized pipe corrodes from the inside out. The zinc coating wears away, rust builds up along the walls, and the interior diameter slowly closes like a clogged artery. By the time a homeowner notices the symptoms, the pipe has often been failing quietly for years.

Southern California’s hard water accelerates all of it. Our municipal supply carries a heavy load of calcium and magnesium, and that mineral content scales the inside of pipes, fixtures, and water heaters. On copper systems it can trigger pinhole leaks, tiny perforations that spray a fine mist behind a wall or under a cabinet and rot framing long before you see a drip. On older galvanized runs, the scale compounds the corrosion and strangles your flow rate.

That is usually why the call starts with weak water pressure. When two fixtures run at once and the shower drops to a trickle, the problem is rarely the city main. It is decades of buildup narrowing the path the water has to travel. Repairing a single section can help, but if the rest of the system is the same age and material, you are patching one link in a chain that is ready to go everywhere else.

Signs your pipes may need repair or a full repipe

• Rusty, brown, or metallic-tasting water, especially first thing in the morning
• Water pressure that drops noticeably when more than one fixture is running
• Recurring pinhole leaks or corrosion spots on exposed copper
• Stains, bubbling paint, or a musty smell on walls, ceilings, or baseboards
• A slab that feels warm underfoot or a water bill that climbed with no change in usage
• Visible flaking, rust scale, or green or white crust at threaded pipe joints
• Water that runs discolored after the house sits unused for a day or two

Copper versus PEX repiping

When a home is due for a full repipe, the two materials worth considering are copper and PEX. Copper has a long track record, handles heat well, and many owners of older homes prefer it. PEX is flexible, resists the scale buildup that plagues our hard-water region, installs with fewer joints, and can often be routed through walls with less demolition. Neither is automatically right; the correct choice depends on your foundation type, how the existing lines are run, and your long-term plans for the house. A slab-on-grade foundation, common throughout the valley, changes how we approach the job compared to a home with a raised foundation and accessible crawlspace.

Slab leaks deserve their own mention because they are easy to miss and expensive to ignore. A supply line running under the concrete can develop a leak that shows up as a warm spot on the floor, the sound of running water with everything shut off, or an unexplained spike in your bill. We locate these without tearing up an entire floor, then talk through whether a spot repair or a reroute makes more sense for your situation. If you are dealing with low pressure, a stubborn leak, or pipes you suspect are near the end of their life, call E.T. Plumbing at (818) 266-0213 and we will take a look before a small problem becomes a flooded room.