Emergency Plumber for Palo Alto Homes: Burst Pipes, Backups and No Hot Water

Hidden leaks, repeat clogs and dead heaters: spot them early

Most plumbing calls fall into a short list, and knowing which one you are looking at changes what happens next. A leak you cannot see is a detection job before it is a repair job. A drain that keeps coming back is a pipe-wall problem, not a blockage problem. And a water heater that has stopped working in Palo Alto has almost always died of age rather than of scale.

We work call-only, with no forms and no booking widget. You get a plumber on the phone who can tell you whether this needs someone tonight or whether it can wait until a sensible hour, and you get a written price range before any work begins.

• A leak with no visible source. Starts at the meter. If the dial moves with everything closed, water is escaping somewhere, and acoustic location finds it without exploratory demolition.
• A drain that clogs again within weeks. Snaking punches a hole through the blockage. Jetting scours the wall of the pipe. A camera tells you which one the line actually needs.
• No hot water, or a tank weeping at its base. A leak from the tank body itself is not repairable. A leak at a fitting usually is.
• Sewage backing up into the house. Stop using fixtures, then call. In Palo Alto there is also a question of whose line it is, which we cover further down this page.

Why a warm floor in south Palo Alto is not always a leak

South Palo Alto has a large stock of Eichler homes, and many of them are heated by hot water circulating through tubing buried in the slab. That means a warm patch on the floor is ambiguous here in a way it is not elsewhere. It might be a failing supply line. It might be the heating system doing exactly what it was built to do.

The material matters more than the age. Eichler used copper tubing in 1950, switched to steel in late 1951 during the Korean War copper shortage, and went back to copper in the late 1950s. Copper leaks in these slabs are generally repairable. Steel is the harder case, and a first leak in a steel system can signal the end of that system's useful life rather than a one-off fix.

You can often tell which you have without lifting a finger of flooring. At the manifold, usually near the boiler in a garage, hallway or laundry, copper-colored pipe suggests copper, while green, gray or aluminum-colored pipe suggests steel. A magnet that sticks to the manifold means steel.

Signs worth calling about

These are the symptoms that tend to bring people to the phone, and they apply to both radiant tubing and ordinary supply lines under a slab.

• A hot or warm spot on a floor that is not above the heating loop
• The sound of running water when nothing in the house is on
• Cracking in flooring or along a wall base that was not there last year
• Damp carpet, or mildew smell with no visible source
• White powdery residue along the base of the foundation

Catastrophic failures that force a whole system to be abandoned are rare, so a first leak is a reason to find out what you have, not a reason to panic. What it is not is something to leave alone, because water under a slab does not stay in one place.

Who owns the sewer lateral at your address

This is the question that decides who pays, and in Palo Alto the answer is written down. Under City of Palo Alto Utilities Rule and Regulation 23, in effect since October 21, 2019, the city owns the lower lateral from the sewer main up to the first city cleanout. You own the upper lateral from that cleanout to your building.

Two situations change that split, and both catch people out. If there is no accessible cleanout on your property, you are responsible for the entire lateral. And where the main runs through a public utility easement rather than the street, the city maintains only the main, so the whole lateral is yours from the connection onward.

1. Find out whether you have a cleanout. The standard location is the planting strip. The rule also requires that cleanout boxes be kept visible and accessible, which is easy to lose under landscaping.
2. Camera the line before agreeing to any excavation. This is what separates a root intrusion from a collapsed section, and it is what determines whether lining is an option.
3. Report the stoppage. The rule requires customers to notify the utility, which then determines responsibility.
4. Check the backwater valve question. An approved backwater valve is required under the current California Plumbing Code where fixtures sit at or below ground level.

Lateral repairs and replacements have to meet the city's utility standards and be inspected and approved, so this is not work to hand to someone who would rather not involve the city.