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

7 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 COLUMBUS, CA

7 listings

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

There are 7 insulation & weatherization contractors in COLUMBUS, 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
APPLE VALLEY INSULATION A BDI COMPANY INC	978408	C-2, D28, D52	2026-10-31	COLUMBUS	43215	Set up workspace
BROKEN DRUM INSULATION VISALIA INC	831088	C-2, C-17, D28, D52	2028-01-31	COLUMBUS	43215	Set up workspace
BROKEN DRUM OF BAKERSFIELD INC	724539	C-2, D28, D52	2028-06-30	COLUMBUS	43215	Set up workspace
O J INSULATION L P	888804	B, C-2, D24, D34, D52	2026-12-31	COLUMBUS	43215	Set up workspace
OJ SPECIALTY CONTRACTING, LLC	1121154	C-2, D12	2028-05-31	COLUMBUS	43215	Set up workspace
SIERRA INSULATION CONTRACTORS II LLC	1011181	C-2	2028-02-29	COLUMBUS	43215	Set up workspace
TRI-COUNTY BUILDING PRODUCTS OF CALIFORNIA LLC	1098057	B, C-2, D24, D28	2026-10-31	COLUMBUS	43215	Set up workspace

Quick answers

How many insulation & weatherization contractors are in COLUMBUS?: 7 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.