How many insulation & weatherization contractors are in FULLERTON, 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 FULLERTON, CA

4 listings

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

There are 4 insulation & weatherization contractors in FULLERTON, California with a current state license as of 2026-08-31. The earliest license expiry among them is 2027-03-31; 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
A & V CONTRACTORS INC	845252	ASB, B, C-2, C-22	2028-08-31	FULLERTON	92833	Set up workspace
ENSO BUILDING SOLUTIONS INC DBA ENSO INSULATION	1102528	C-2	2027-03-31	FULLERTON	92836	Set up workspace
INTERNATIONAL WALLS & CEILINGS INC	947700	B, C-2	2028-05-31	FULLERTON	92835	Set up workspace
THOMASVILLE CONSTRUCTION INC	585556	A, B, C-2, C-20, C-36, D12, D34	2027-11-30	FULLERTON	92833	Set up workspace

Quick answers

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