DH Pace is a national commercial door and door-services contractor supplying, installing and servicing fire-rated swinging, rolling and sliding door assemblies. Its staff hold DHI credentials including Architectural Hardware Consultant and Certified Door Consultant, and the firm runs a Fire Door Drop Test programme with FireCheck-certified inspectors to meet the annual inspection requirements of NFPA 80, NFPA 101 and NFPA 105. It is also a member of the International Door Association and of AAADM. The company has traded from Olathe, Kansas since 1926.