Santa Clara County · Sunnyvale, CA
Plumbers in Sunnyvale, CA
Sunnyvale is in Santa Clara County, California. About 153,000 people live in the 5 ZIP codes we cover here, in roughly 62,000 homes, 37% of them single-family detached houses. The biggest share of the housing was built between 1960 and 1979 (36%), and that age decides most of what goes wrong with the plumbing.
- Same-day service when a plumber is available
- 5 ZIP codes covered
ZIP codes we cover in Sunnyvale
94085, 94086, 94087, 94088, 94089
Sunnyvale homes and their plumbing
Here is how Sunnyvale's homes break down by year built, based on Census estimates for the covered ZIP codes: before 1940 2%, 1940–1959 21%, 1960–1979 36%, 1980–1999 23%, 2000 or later 19%. Most homes are old enough that original pipe, valves and water heaters are wearing out, but young enough that full repipes are a case-by-case call. Neighboring areas such as Santa Clara, Fremont are covered too.
| Year built | Share of homes |
|---|---|
| Before 1940 | 2% |
| 1940–1959 | 21% |
| 1960–1979 | 36% |
| 1980–1999 | 23% |
| 2000 or later | 19% |
Share of housing units in the covered ZIP codes. Census ACS 2023 5-year estimates.
- Residents in covered ZIPs
- 153,455
- Housing units
- 61,808
- Single-family detached
- 37%
- Owner-occupied
- 44%
- Heated with utility gas
- 53%
- Heated with electricity
- 43%
What goes wrong in Sunnyvale homes
1960s and 70s homes reaching end of life
36% 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
53% 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.
Apartments, condos and attached homes
Only 37% of homes here are single-family detached houses. In attached buildings a leak or clog often involves a shared stack or a neighbor's unit, so it's worth knowing which lines are yours and which belong to the building or HOA, and where your unit's own shutoff is.
Common calls in Sunnyvale
- Sewer Camera Inspection
- Gas Line Repair
- Drain Cleaning
- Water Heater Replacement
- Main Water Line Repair
- Sewer Line Repair
Also available in Sunnyvale: emergency plumbing and every plumbing service.
Sunnyvale at a glance
- County
- Santa Clara County
- Nearest city pages
- Santa Clara, Fremont
- ZIP codes
- 94085, 94086, 94087, 94088, 94089
Sunnyvale plumbing FAQ
How old are the homes in Sunnyvale?
In the ZIP codes we cover around Sunnyvale, Census estimates put 23% of homes as built before 1960, 36% from 1960 to 1979, 23% from 1980 to 1999 and 19% in 2000 or later. The largest group is 1960–1979 (36%).
Who licenses plumbers in Sunnyvale, 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 Sunnyvale usually gas or electric?
Census data for the area show 53% of homes heating with utility gas, 43% 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.
I rent in Sunnyvale. Who pays for plumbing repairs?
About 56% of homes here are renter-occupied. In most cases the landlord is responsible for the building's plumbing, and tenants should report leaks right away and in writing. Damage a tenant causes, like a clog from something flushed, may be billed back. Your lease and California landlord-tenant law set the details.
Guides for Sunnyvale homeowners
Nearby areas
Also covered nearby: Mountain View (3 mi), Los Altos (4 mi), Cupertino (5 mi), Palo Alto (7 mi), Stanford (8 mi), Campbell (8 mi), Milpitas (8 mi), Saratoga (8 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 Sunnyvale, so they may include neighboring communities that share those ZIP codes.
Need a plumber in Sunnyvale?
Same-day service when a plumber is available. One call connects you with a licensed plumber who serves your ZIP.