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Leak Detection in San Francisco, California 94102

45% of housing predates 1940.

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Rusted riser on a tapping saddle clamped to a buried supply main

Free to homeowners in San Francisco — the contractor pays us for the introduction, you never do.

The short answer

In San Francisco, 45% of housing was built before 1940. A bill that climbs with nothing damp indoors points to the private side of the meter, outside the building, where water drains away without ever showing.

Source: US Census Bureau, American Community Survey, table B25034, five-year estimates. A margin of error is published alongside every estimate.

45% of the housing in San Francisco was built before 1940, and the oldest buried supply lines are the ones that fail without ever showing damp indoors.

What this site is

AcousticLeak is a referral service, not a contractor. We connect homeowners with independent contractors. Contractors are required to hold whatever credential their state or municipality demands. We carry out no work and no leak location, we do not set prices, and we never charge homeowners anything — the contractors in our network pay us when we route them a call. Nothing here is a statement about what your own utility will credit; only your utility can tell you that.

San Francisco in numbers

Occupied homes362,650
Owner-occupied38%
Detached houses18%
Built before 199082%
Built since 200014%

Leak Detection coverage in San Francisco, CA

San Francisco spans San Francisco and San Mateo Counties, California. It covers 51 ZIP codes: 94102, 94103, 94104, 94105, 94107, 94108, 94109, 94110, 94111, 94112, 94114, 94115, 94116, 94117, 94118, 94119, 94120, 94121, 94122, 94123, 94124, 94125, 94126, 94127 and 27 more. We route leak detection calls from every one of them.

The adjustment is worth asking about

Many utilities will adjust a bill once for a hidden leak that has been repaired, on evidence. The terms are set by your own utility and nobody else can tell you what they are.

A rising bill with nothing damp indoors

That combination almost always means the leak is on the private side of the meter and outside the building — under a driveway, a lawn or a slab, where it drains away without ever showing.

Nearby cities we cover

Everywhere we route in California

Checking a plumber in California

California licenses are issued by the Contractors State License Board, which publishes a public search you can use before work begins. California licenses the C-36 plumbing contractor; there is no state journeyman license.

What happens when you call

No form, no quote tool, no waiting for an email.

  1. You tell us what the water is doingOne short conversation. If it turns out to be something you can fix in five minutes, we will say so.
  2. We route the call in San FranciscoWe match 94102 to an independent contractor who already covers San Francisco — not a call center three states away.
  3. They quote, you decideWe do not set prices and we never charge you. The contractor pays us for the introduction.

Leak Detection in San Francisco? Tell us your ZIP code and what is happening. We route you to an independent contractor who covers ZIP 94102 and the other 50 this city covers. We carry out no work and set no prices, you are never charged, and the contractors pay us when we route a call.

Call (888) 530-1544
Heavily corroded pipe with a drop forming at its cut end
Call (888) 530-1544