Heard a loud snap the other day when I got out of my car after returning home from work and parking in the garage. Immediately following the noise I heard I turned to see that my garage door had not properly closed and there was a gap in the top corner. Premium Garage Door Repair Markham came out to take a look for me and concluded that I needed a garage door spring replacement. They replaced the broken spring and set me up with a maintenance schedule. Great work and I would definitely recommend them!