How many insulation & weatherization contractors are in LIVERMORE, CA?

10 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 LIVERMORE, CA

10 listings

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

There are 10 insulation & weatherization contractors in LIVERMORE, 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
ANTHON INCORPORATED	952663	C-2	2027-08-31	LIVERMORE	94551	Set up workspace
BLUE PHOENIX CONTRACTING LLC	1113076	C-2	2027-11-30	LIVERMORE	94550	Set up workspace
GUARDIAN FIRESTOP AND INSULATION LLC	1125232	C-2	2026-08-31	LIVERMORE	94550	Set up workspace
INSULTECH CONTRACTING LLC	1111192	C-2	2027-10-31	LIVERMORE	94550	Set up workspace
J D S ACOUSTICS	924525	C-2	2028-04-30	LIVERMORE	94550	Set up workspace
L J INTERIORS INC	605932	C-2	2026-11-30	LIVERMORE	94550	Set up workspace
MARINA MECHANICAL SERVICES	416198	C-2, C-4, C-10, C-20, C-36, C-38, C-43	2027-12-31	LIVERMORE	94551	Set up workspace
POLAR COATINGS COMPANY	879973	C-2	2028-06-30	LIVERMORE	94551	Set up workspace
SPACETONE ACOUSTICS INC	397494	B, C-2, C-9	2027-01-31	LIVERMORE	94551	Set up workspace
YORKSHIRE ROOFING OF NORTHERN CALIFORNIA INC DBA ROOFMAX	841422	B, C-2, C-39	2027-07-31	LIVERMORE	94550	Set up workspace

Quick answers

How many insulation & weatherization contractors are in LIVERMORE?: 10 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.