Nav is great. I have used him twice over the years for emergency repairs, once a broken spring and once a broken guide wire. Each time Nav came on-time and fixed the problem quickly and professionally. He brought everything needed for the repair and has a full stock of parts with him so there is no issues with having to go get parts and come back.
Today I had him install a garage door opener in my daughters house. Again he came on-time and brought all the necessary tools, brackets and pieces needed to complete the job. He was quick and thorough and checked everything to make sure it functioned as it should. His prices are very reasonable and his service is excellent.
I would highly recommend Nav for all your garage door, opener installation and repair work.