How many insulation & weatherization contractors are in NORTH HOLLYWOOD, 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 NORTH HOLLYWOOD, CA

4 listings

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

There are 4 insulation & weatherization contractors in NORTH HOLLYWOOD, California with a current state license as of 2026-08-31. The earliest license expiry among them is 2026-10-31; 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
BLACKSMITH	294488	A, B, C-2, C-4, C-10, C-36, C-38, D17, D35	2028-08-31	NORTH HOLLYWOOD	91605	Set up workspace
CIRCULATING AIR INC	240778	B, C-2, C-4, C-10, C-20, C-38, C-43	2026-10-31	NORTH HOLLYWOOD	91605	Set up workspace
COMMERCIAL INTERIORS ACOUSTICS INC	669626	C-2	2027-05-31	NORTH HOLLYWOOD	91601	Set up workspace
KREIT MECHANICAL ASSOCIATES INC	819950	C-2, C-20, C-36, C-42	2027-05-31	NORTH HOLLYWOOD	91605	Set up workspace

Quick answers

How many insulation & weatherization contractors are in NORTH HOLLYWOOD?: 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.