Since your garage door opener is always on standby mode, it is constantly using up energy. When it's not in good shape, the opener can end up draining more energy and it can cause your door to open sluggishly. To get the most out of your door opener, you need to be sure it's repaired and serviced often. Since the main units behind garage door openers are essentially electric motors, your repair contractor should have a strong knowledge of motor mechanics and electricity. He or she should be able to spot manufacturing defects or general wear and tear to root out the problem quickly. Beyond this, he or she needs to be able to make these repairs efficiently without sacrificing quality. To make things move faster, you should try your best to find a repair contractor who has experience with your specific brand of garage door opener. Since some of these products use non-standard sizes in their design, the parts are not often very easy to find. When the contractor is familiar with the limitations of a specific brand before he or she even starts working, then these problems will be more easily anticipated. This can play a big role in speeding up the repair process.