The expert garage door repair technicians at Don’s Garage Doors have been taking care of customers in Denver and the surrounding areas for 31 years. And, although we recommend and install Liftmaster garage door openers, we’re expert with all makes and models. So, if you’re a homeowner with a broken Guardian garage door opener (or any other brand), give us a call. We’ll get our techs out to your home right away, and will have your garage door opening and closing properly in no time. We’ve been repairing garage door openers since 1989, have thousands of satisfied customers, and are endorsed by Team Dave Logan, and Tom Martino.