California · 31 covered places · 41 ZIP codes
Plumbers in Sonoma County, CA
We cover 31 cities and towns in Sonoma County, California, across 41 ZIP codes, including Santa Rosa, Petaluma, Rohnert Park. About 486,000 people live in those ZIP codes. Most homes date from 1960 to 1979, old enough that original water heaters, valves and drains are wearing out.
| Year built | Share of homes |
|---|---|
| Before 1940 | 8% |
| 1940–1959 | 13% |
| 1960–1979 | 32% |
| 1980–1999 | 31% |
| 2000 or later | 16% |
Share of housing units in the covered ZIP codes. Census ACS 2023 5-year estimates.
| Place | Residents in covered ZIPs | Built before 1960 |
|---|---|---|
| Santa Rosa | 210,635 | 18% |
| Petaluma | 71,339 | 25% |
| Rohnert Park | 46,463 | 5% |
| Sonoma | 35,139 | 24% |
| Sebastopol | 28,588 | 28% |
| Windsor | 27,455 | 5% |
| Healdsburg | 15,868 | 30% |
| Cloverdale | 11,410 | 26% |
| Cotati | 9,320 | 17% |
| Forestville | 5,999 | 49% |
What goes wrong in Sonoma County homes
1960s and 70s homes reaching end of life
32% 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.
1980s and 90s construction and polybutylene
31% of homes were built between 1980 and 1999. Polybutylene supply pipe was installed widely in US homes from about 1978 to 1995, so houses from these years are worth checking for gray plastic pipe stamped PB2110, usually visible at the water heater or under sinks. Insurers and buyers often ask about it. See polybutylene replacement.
Common plumbing work in Sonoma County
City pages in Sonoma County
Other covered towns in Sonoma County
- Bodega (1 ZIP)
- Bodega Bay (1 ZIP)
- Boyes Hot Springs (1 ZIP)
- Camp Meeker (1 ZIP)
- Cazadero (1 ZIP)
- Cloverdale (1 ZIP)
- Cotati (1 ZIP)
- El Verano (1 ZIP)
- Eldridge (1 ZIP)
- Forestville (1 ZIP)
- Fulton (1 ZIP)
- Geyserville (1 ZIP)
- Glen Ellen (1 ZIP)
- Graton (1 ZIP)
- Guerneville (1 ZIP)
- Healdsburg (1 ZIP)
- Jenner (1 ZIP)
- Kenwood (1 ZIP)
- Monte Rio (1 ZIP)
- Occidental (1 ZIP)
- Penngrove (1 ZIP)
- Petaluma (3 ZIPs)
- Rio Nido (1 ZIP)
- Rohnert Park (2 ZIPs)
- Sebastopol (1 ZIP)
- Sonoma (1 ZIP)
- The Sea Ranch (1 ZIP)
- Valley Ford (1 ZIP)
- Villa Grande (1 ZIP)
- Windsor (1 ZIP)
Sonoma County plumbing FAQ
Which towns in Sonoma County do you cover?
31 places: Bodega, Bodega Bay, Boyes Hot Springs, Camp Meeker, Cazadero, Cloverdale, Cotati, El Verano, Eldridge, Forestville, Fulton, Geyserville, Glen Ellen, Graton, Guerneville, Healdsburg, Jenner, Kenwood, Monte Rio, Occidental, Penngrove, Petaluma, Rio Nido, Rohnert Park, Santa Rosa, Sebastopol, Sonoma, The Sea Ranch, Valley Ford, Villa Grande, Windsor. Enter your ZIP code to confirm coverage for your street.
How old are homes in Sonoma County?
Across the covered ZIP codes, Census estimates put 21% of homes as built before 1960, 32% from 1960 to 1979, 31% from 1980 to 1999 and 16% in 2000 or later.
Who licenses plumbers in Sonoma County, CA?
The Contractors State License Board (CSLB) licenses plumbing contractors under the C-36 classification, and its online lookup shows license status.
Housing and heating figures are US Census Bureau ACS 2023 5-year estimates for the ZIP code areas we cover in Sonoma County, combined across places and weighted by housing units. Some ZIP codes extend into neighboring counties.
Need a plumber in Sonoma County?
Same-day service when a plumber is available. One call connects you with a licensed plumber who serves your ZIP.