How many insulation & weatherization contractors are in VALLEJO, 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.

Insulation & Weatherization contractors in VALLEJO, CA

4 listings

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

There are 4 insulation & weatherization contractors in VALLEJO, California with a current state license as of 2026-08-31. The earliest license expiry among them is 2026-11-30; 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
CALIFORNIA QUALITY INSULATION	1050955	C-2, D38	2027-03-31	VALLEJO	94591	Set up workspace
CITY PLUMBING	1016211	C-2, C-36	2028-07-31	VALLEJO	94590	Set up workspace
CRG INSULATION & ACOUSTICAL INC	1128829	C-2	2026-11-30	VALLEJO	94591	Set up workspace
J B L ACOUSTICS	979514	C-2	2028-04-30	VALLEJO	94590	Set up workspace

Quick answers

How many insulation & weatherization contractors are in VALLEJO?: 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.