We've used Nashville Garage Door Expert before. They do great work and don't try to sell you services you don't need. They were respectful of our personal space knocking on the garage door into the house even though I told them they could come if they needed me. The whole job was explained to me before work began and I kept the parts so my husband could see what the problem had been. Prices were reasonable and the service was fast and efficient. We have their number posted in numerous places in our garage.