Are you looking for a garage door opener in Calgary? Cal Sims/MHS. We specialize in Liftmaster operators but can provide you with all makes and models equipped with the latest security and safety features. Whether you need a commercial, industrial or residential garage door opener we have got you covered. Our technicians are experienced professionals ready to install, repair and maintaining all makes and models. Sims/MHS professionals will provide you the right advise that fits your needs and your budget.