San Mateo County · San Bruno, CA
Plumbers in San Bruno, CA
San Bruno is in San Mateo County, California. About 43,000 people live in the ZIP code we cover here, in roughly 17,000 homes, 57% of them single-family detached houses. The biggest share of the housing was built between 1940 and 1959 (40%), and that age decides most of what goes wrong with the plumbing.
- Same-day service when a plumber is available
- 1 ZIP codes covered
ZIP codes we cover in San Bruno
94066
San Bruno homes and their plumbing
Here is how San Bruno's homes break down by year built, based on Census estimates for the covered ZIP codes: before 1940 8%, 1940–1959 40%, 1960–1979 34%, 1980–1999 9%, 2000 or later 10%. With that many older homes, original galvanized supply pipe and cast iron or clay drains are still common, so leaks, rust and root intrusion come up often. Neighboring areas such as South San Francisco, Burlingame, Daly City are covered too.
| Year built | Share of homes |
|---|---|
| Before 1940 | 8% |
| 1940–1959 | 40% |
| 1960–1979 | 34% |
| 1980–1999 | 9% |
| 2000 or later | 10% |
Share of housing units in the covered ZIP codes. Census ACS 2023 5-year estimates.
- Residents in covered ZIPs
- 42,875
- Housing units
- 16,736
- Single-family detached
- 57%
- Owner-occupied
- 62%
- Heated with utility gas
- 63%
- Heated with electricity
- 32%
What goes wrong in San Bruno homes
Pre-1960 homes: galvanized pipe and cast iron
48% of homes in San Bruno's covered ZIP codes were built before 1960. Houses that old often still have galvanized steel supply lines that rust closed from the inside, and cast iron or clay sewer pipe that cracks and lets roots in. Weak pressure at upstairs fixtures, brown water after a shutoff and slow drains are the usual clues. Typical fixes are whole-house repiping and a sewer camera inspection.
1960s and 70s homes reaching end of life
34% of the housing here dates from 1960 to 1979. Original copper supply lines in those homes are now 45 to 65 years old, and cast iron drains of that age scale up inside and crack. Seized shutoff valves, pinhole leaks and recurring main-line clogs are common calls. A camera inspection shows the condition of the sewer line before anyone digs.
Natural gas in most homes
63% of occupied homes here heat with utility gas, so gas water heaters, ranges and dryers are common. That means gas line extensions for new appliances, flexible connector replacements and venting checks when a water heater is swapped. If you smell gas, leave first and call the gas utility from outside. See gas line repair.
Common calls in San Bruno
- Whole-House Repiping in San Bruno, CA
- Sewer Camera Inspection
- Gas Line Repair
- Water Heater Replacement
- Drain Cleaning
- Main Water Line Repair
- Sewer Line Repair
Also available in San Bruno: emergency plumbing and every plumbing service.
San Bruno at a glance
- County
- San Mateo County
- Nearest city pages
- Daly City, San Mateo, San Francisco
- ZIP codes
- 94066
San Bruno plumbing FAQ
How old are the homes in San Bruno?
In the ZIP codes we cover around San Bruno, Census estimates put 48% of homes as built before 1960, 34% from 1960 to 1979, 9% from 1980 to 1999 and 10% in 2000 or later. The largest group is 1940–1959 (40%).
Who licenses plumbers in San Bruno, CA?
The Contractors State License Board (CSLB) licenses plumbing contractors under the C-36 classification, and its online lookup shows license status.
Are water heaters in San Bruno usually gas or electric?
Census data for the area show 63% of homes heating with utility gas, 32% with electricity. Water heaters often use the same fuel as the home's heat, so utility gas is the most common here, but check the label on your tank before you shop for a replacement.
Guides for San Bruno homeowners
Nearby areas
Also covered nearby: Millbrae (2 mi), Pacifica (3 mi), Brisbane (5 mi), Montara (6 mi), El Granada (8 mi), Moss Beach (8 mi), Belmont (11 mi).
Housing, heating and population figures are US Census Bureau American Community Survey 2023 5-year estimates for the ZIP code areas we cover in San Bruno, so they may include neighboring communities that share those ZIP codes.
Need a plumber in San Bruno?
Same-day service when a plumber is available. One call connects you with a licensed plumber who serves your ZIP.