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

4 listings

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

There are 4 insulation & weatherization contractors in FONTANA, 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
ALTA INSULATION & CONSTRUCTION INC	1078786	B, C-2	2027-07-31	FONTANA	92337	Set up workspace
DLAB DRYWALL INC	986090	C-2, C-9, C-33	2027-03-31	FONTANA	92335	Set up workspace
SAHUARO INSULATION SERVICES	1038848	C-2	2028-05-31	FONTANA	92336	Set up workspace
SOUTHCOAST ACOUSTICAL INTERIORS INC	738787	C-2, D12, D34, D50	2028-01-31	FONTANA	92336	Set up workspace

Quick answers

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