Accredited Firestop is an Ottawa specialty firestop contractor working on commercial, industrial, institutional and multi-residential buildings. Its service categories are penetrations — fire-rated and acoustical seals for architectural and mechanical, electrical and plumbing systems — together with reports and applications. It also provides inspection, surveying, code-compliance and maintenance work alongside new construction. The firm states more than twenty-five years in firestopping, describes its installers as accredited by the manufacturers STI and Hilti, and appears on the FCIA Canadian member register.