Emergency Repiping in Aliso Viejo, CA: Pinhole Leaks, Burst Pipes and Whole-House Replacement

Burst pipe: the first minutes

A burst pipe is the case where speed matters most, and the order of the steps matters more than the speed. Water is moving, and every minute it runs adds to the damage.

1. Shut the main house valve. It is the valve after the meter, and it belongs to the homeowner. Turn it gently; an old valve can break.
2. Open a low faucet and a high one. That drains the pipes and relieves pressure, which slows the flow at the break.
3. Keep electricity clear of the water. If the water is near outlets, fixtures or the panel, stay clear and let an electrician or the plumber advise.
4. Note where it broke and what it is made of. A photo helps the plumber arrive with the right fittings.
5. Call and say that a pipe has burst. The dispatch line passes the call to a local plumber.

A pipe that has broken suddenly is different from one that has been weeping. The weeping kind is covered in the sections that follow, and once the water is stopped, drying a soaked floor falls under cleanup after a burst pipe.

Pipe repair: when a patch is the right answer

A single failure in pipe that is otherwise in good condition is a repair. Cutting out the damaged length and splicing in new pipe is routine on copper, PEX and CPVC, and a cracked elbow or fitting, like the one a caller described spraying water, is among the simplest cases. The repair holds if the pipe around it is sound.

The question to ask is what the pipe on either side of the cut looks like. Pipe that is thin, pitted or scaled will fail again nearby, and a repair that is made in the middle of failing pipe is a short-term fix. Ask the plumber to show you the cut section, and to say what the remaining pipe looks like.

Call the dispatch line: (949) 209-5456

Copper pipe leaks and pinholes

Copper is long-lived, but it can develop pinhole leaks, tiny holes that wet a wall or stain a ceiling before anyone sees a puddle. The causes vary: water chemistry, flow, installation and age all play a part, and a plumber cannot always say which applies to your house. What matters to the owner is the pattern.

One pinhole in one run, with the rest of the pipe in good shape, is a repair. Pinholes in several places, or a second and third within a short period, point to a system problem. Moulton Niguel's hard water, at a 2023 average of 13.3 grains per gallon, is not by itself proof of cause, but ask the plumber whether the inside of the removed pipe shows scale or pitting, and what the finding suggests about the rest of the run.

Pipe replacement: a section, a run or the whole house

Replacing a pipe is not one decision. A short section, a full run, such as the supply to one bathroom, and the whole system are three different scopes. The leaking section is the smallest job and the most likely to be followed by another failure elsewhere; the whole system is the largest job and the one that ends the pattern.

Ask for the scope to say exactly what is being replaced and from where to where. A quote for a repair that says nothing about the rest of the run is a repair, and an owner who has had several leaks should ask for a second quote that covers the run.

Whole-house repiping: what the work involves

A repipe replaces the supply lines that carry water to the fixtures, from the main valve to the heater, the bathrooms, the kitchen and the laundry. Old pipes prone to leaks are the usual reason, and the signs are pinholes, stains and falling pressure. The old lines are abandoned or removed, and new lines are run, usually through walls, the attic and, where the house has them, the crawlspace. Drywall is opened at access points and patched afterward.

The material is the plumber's recommendation, but it should come with a reason, and no material claim should be made about your house without having been seen. Living in the house during the work, patching and the number of days the water is off are all worth getting in writing. For a leak under the floor, see leaks beneath a slab, which may end in a reroute instead of a full repipe.

Permits, inspection and the written scope

A repipe is large enough that the permit question should be settled first. The city's fee schedule doubles plumbing permit fees for work begun early, and its published material does not say whether a repipe needs a permit, so ask the plumber whether it does and who pulls it, and have the number written on the quote. A written repipe scope names the materials, the fixtures covered, the access and patching, the permit, and what is and is not included.

Galvanized pipe, and pipes under the slab or underground

Galvanized. Galvanized steel supply pipe corrodes from the inside, which narrows it and reduces pressure before it leaks. Rusty water at the tap and low flow are the signs. Where it is present it is usually a repipe candidate, and a plumber can confirm what the house has.

Under the slab or underground. Supply lines under a slab, or buried in the yard, are the hardest to reach, and a leak there is often found by its effects, a warm floor or a rising bill. A plumber can locate it, and the choices are a spot repair, a reroute through the walls or attic, or replacement. DigAlert is notified before any excavation.

Other materials you may meet

• PEX is flexible plastic supply pipe, common in repipes.
• Cast iron, PVC and CPVC. Cast iron is found as drain pipe in older homes; PVC is a rigid plastic used for drains, and CPVC a rigid plastic for supply.
• Polybutylene supply pipe has a history of failures; ask whether any remains in your house.
• Pinhole leaks in any metal pipe are a sign to look at the whole run, not just the hole.

Repiping is the largest pipe job a house sees. Smaller work is covered across the homepage list of plumbing services.