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

4 listings

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

There are 4 insulation & weatherization contractors in PLEASANTON, 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
ACCURATE FIRESTOP & INSULATION	710044	C-2, C-35	2027-07-31	PLEASANTON	94566	Set up workspace
CRAWLSPACE CLEAN & INSULATION INCORPORATED	1063093	C-2	2028-02-29	PLEASANTON	94588	Set up workspace
INSULATION SPECIALTIES INC	464164	C-2	2026-10-31	PLEASANTON	94588	Set up workspace
SERVICE CHAMPIONS	817040	C-2, C-10, C-20, C-36	2027-08-31	PLEASANTON	94588	Set up workspace

Quick answers

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