JD Firestop Pros is a woman-owned specialty firestop and fireproofing contractor working across Northern California. Its site states that it is a UL qualified firestop contractor and a certified Woman-Owned California Small Business Enterprise. Services cover firestop installation, spray fireproofing, insulation and expansion joints for commercial, private and multifamily residential buildings. It works for general contractors and building owners in the Bay Area and Central Valley.