I first contacted Greg after reviewing a number of garage door companies online. I felt as if many were too big and missing the personal touch. After reading a number of excellent reviews on HomeStars, I felt comfortable in making the call to Alpha One Door Systems. Greg, the proud owner of this family run business, was prompt in coming over for an assessment and provided an immediate estimate. He was detailed in his explanations and kept things simple. After a few days I contacted Greg for the installation of two garage doors and openers to be installed. On the day of installation, Greg was early, attentive to our needs and had everything installed within the day. All the old debris were removed and discarded properly. I really enjoyed having the person selling me the products, also return to complete the installation. This was really important to me, because many of the other competitors have a sales person and contracted installers, etc. It's been a month and to date, no issues and as Greg will tell you "100% satisfaction guaranteed." I will ensure I share my experience with Greg and recommend his business, Alpha One Door Systems with family and friends in the Mississauga area. Richard, October 2013 Mississauga, ON.