ims & MHS is Calgary's most reliable source for overhead doors and loading docks for over 50 years. Formerly Sims Overhead Door and MHS Material Handling Services Ltd we merged in 2020 and became Sims/MHS bringing together unmatched experience, expertise and knowledge in overhead garage doors, loading docks and recycling equipment. Sims Overhead Door has been Calgary's go-to commercial, industrial and residential overhead door specialist since 1962, MHS Material Handling Services Ltd has provided loading dock installation, repair, and maintenance for all brands of docks and dock accessories since 1984. We are authorized dealers for CHI Overhead Doors, Liftmaster Operators, Steelcraft Overhead Doors, Indotech Rubber Doors, Micanan Commercial Door Operators, Pentalift Loading Docks and Harmony Recycling Equipment. We are Calgary's leader in Overhead Door and Loading Dock supply, repair and maintenance.