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

1 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 MARTINEZ, CA

1 listings

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

There are 1 insulation & weatherization contractors in MARTINEZ, California with a current state license as of 2026-08-31. The earliest license expiry among them is 2027-04-30; 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
MASON BPP INC	1025605	B, C-2, C-20	2027-04-30	MARTINEZ	94553	Set up workspace

Quick answers

How many insulation & weatherization contractors are in MARTINEZ?: 1 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.