MASTER COOL TECH operating as a sole owner is licensed in California under CSLB number 1129499. The license was first issued in 2024, putting the business at 2 years on the active CSLB roster. It carries a single CSLB classification: C-20 — HVAC Contractor. Records show an active surety bond on file with BUSINESS ALLIANCE INSURANCE COMPANY and active workers' compensation coverage from GREAT AMERICAN ALLIANCE INSURANCE COMPANY. The business is based in SAN FERNANDO, in Los Angeles County, California.