My workshop is in my 2 car garage. The overhead door is as old as the house, 14 years. The door has no windows and no insulation. I've thought about having the top row replaced with a row of windows and insulating the door but to be honest my thinking has evolved to just buy a new door with windows and insulation. For those of you who have had new doors installed, do you have any hints or suggestions as to what I should look for? I have one estimate for $2,400 for a 16" x7" insulated door with the top row of double insulated windows and plan on getting a second estimate. I have a 220v electric heater which can get the temperature to a comfortable working level, but I'm pretty sure it's expensive to run. I'm in New Jersey, if that makes any difference.
Thoughts? Recommendations.