How many solar & energy upgrades contractors are in SONOMA, CA?

4 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.

Solar & Energy Upgrades contractors in SONOMA, CA

4 listings

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

There are 4 solar & energy upgrades contractors in SONOMA, California with a current state license as of 2026-08-31. The earliest license expiry among them is 2027-02-28; 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
BAILEY SMITH ELECTRIC	1042773	C-10, C-46	2028-08-31	SONOMA	95476	Set up workspace
B D S	864390	B, C-10, C-46	2027-09-30	SONOMA	95476	Set up workspace
EARTH STAR ELECTRIC	810369	C-10, C-46	2028-07-31	SONOMA	95476	Set up workspace
ROCKET SCIENCE	732497	B, C-46	2027-02-28	SONOMA	95476	Set up workspace

Quick answers

How many solar & energy upgrades contractors are in SONOMA?: 4 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.