How many plumbing contractors are in SONOMA, CA?

24 with a current California license, as of 2026-08-31.

How do I check a California contractor license is current?

Every listing shows its state license number and expiry date. Verify any of them directly against the California CSLB licensee database.

Plumbing contractors in SONOMA, CA

24 listings

Source: California CSLB license records. Last verified 2026-08-31.

There are 24 plumbing contractors in SONOMA, California with a current state license as of 2026-08-31. The earliest license expiry among them is 2026-08-31; every listing shows its own number and expiry date. All are drawn from the California CSLB register; expired and inactive licenses are excluded.

Business	License	Type	Expires	City	Zip
AMERICAN BUILDERS	427930	A, B, C-4, C-10, C-16, C-36	2028-09-30	SONOMA	95476	Set up workspace
BIG AL'S PLUMBING	1149646	C-36	2028-01-31	SONOMA	95476	Set up workspace
BODEN PLUMBING INC	659920	C-20, C-36	2027-02-28	SONOMA	95476	Set up workspace
BONNEY INC DBA HEATWAVE SYSTEMS	857673	C-4, C-36	2027-04-30	SONOMA	95476	Set up workspace
COTTAM ENTERPRISES INC	973502	C-36	2028-05-31	SONOMA	95476	Set up workspace
EASTON PLUMBING INC	1059513	A, C-36	2027-10-31	SONOMA	95476	Set up workspace
EDDIE R PLUMBING	808283	C-36	2027-08-31	SONOMA	95476	Set up workspace
FERRANDO'S PLUMBING & HEATING INC	449417	C-36	2027-11-30	SONOMA	95476	Set up workspace
GOFLOW PLUMBING INC	1150830	C-36	2028-02-29	SONOMA	95476	Set up workspace
GOPHER - IT TRENCHLESS	982140	A, C-36	2027-03-31	SONOMA	95476	Set up workspace
HADDLY PLUMBING	869145	C-36	2027-12-31	SONOMA	95476	Set up workspace
HEALING COMFORT HEATING AIR & PLUMBING	1075338	C-20, C-36	2027-04-30	SONOMA	95476	Set up workspace
KEEP IT REAL PLUMBING	1158587	C-36	2028-07-31	SONOMA	95476	Set up workspace
LOCATI PLUMBING	1139128	C-36	2027-06-30	SONOMA	95476	Set up workspace
MCMAHON FERNANDEZ CONSTRUCTION INC	1055940	A, C-36	2027-07-31	SONOMA	95476	Set up workspace
PETERSON MECHANICAL INC	171486	B, C-4, C-16, C-20, C-34, C-36, C-38, C-42, C-43	2028-06-30	SONOMA	95476	Set up workspace
PLUMB SMART	1126758	C-36	2028-09-30	SONOMA	95476	Set up workspace
PRECISION NORTHBAY INC	976759	B, C-36	2027-09-30	SONOMA	95476	Set up workspace
R S REED INC	844335	B, C-36	2026-08-31	SONOMA	95476	Set up workspace
SANDEEN PLUMBING LLC	941868	C-36	2027-07-31	SONOMA	95476	Set up workspace
SPOTLESS PLUMBING	1093556	C-36	2028-07-31	SONOMA	95476	Set up workspace
STEVEN RAFFAINI PLUMBING AND RADIANT LLC	916665	C-36	2027-11-30	SONOMA	95476	Set up workspace
VALLEY OF THE MOON PLUMBING LLC	1004026	C-36	2027-05-31	SONOMA	95476	Set up workspace
WINE COUNTRY FIRE PROTECTION & PLUMBING INC	1038646	C-16, C-36	2028-03-31	SONOMA	95476	Set up workspace

Quick answers

How many plumbing contractors are in SONOMA?: 24 with a current California license, as of 2026-08-31.
How do I check a license is current?: Every listing shows its state license number and expiry. Verify any of them directly against the California CSLB licensee database.