Apex Firestop specialises in the selection and installation of UL-approved firestop systems in the Houston area. Both of its named officers carry the FM Designated Responsible Individual credential associated with FM 4991 approval. Sectors served include telecom, healthcare, property management, education and power generation, and customers include property owners, construction managers, general contractors and mechanical, sprinkler and cable contractors. It also offers consulting, budgeting and inspection services plus intumescent fire-resistive material work.