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Garage Doors Mississauga, Oakville and Surroundings

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The Garage Doors Expert in Mississauga, Oakville, and Surrounding Areas

For over 20 years Alpha One Door Systems has been helping homeowners in Mississauga, Oakville, and the West Greater Toronto Area buy and install premium residential garage doors. We understand that a garage door is more than just an afterthought, it holds your possessions safe, it builds curb appeal, and more.

Since 1984 this family business has always made sure that their main goal is to complete a quality job. We know that making our customers happy and keeping their homes safe comes above all else. Located in Mississauga we are authorized distributors of Clopay and LiftMaster,some of the best and most trusted names in garage doors.

Alpha One Door Systems also offers a service programs for its garage doors. If there is something wrong with a garage door we installed, call us and we’ll repair or replace it as necessary.

Founder Greg Szumowski began this company with a simple ideal, that no matter who the client is, whether they’re looking to install the top high end door or a small family just looking for some information, he was going to do the best job possible for them and that is why Alpha One Door Systems has been a successful company for so long. We believe in that ideal so much that most of our marketing is based on referrals from our satisfied customers.

Alpha One Door Systems offers everything the residential or commercial customer demands: a trusted name, exceptional durability, a diverse portfolio of design options, and more. We believe that our doors are not only the best looking doors you can find but they are also the most reliable, winning multiple awards over the years.

Our garage doors deliver reliability, low insurance costs and profitability to commercial customers worldwide and safety and reliability to homeowners.

LiftMaster has been leading the world in innovation for garage door openers for over 40 years. They are the most dependable and reliable openers in the world. LiftMaster products offer safety, security, and convenience, and are proven to withstand even the harshest of elements and years of extended use. LiftMaster continues to design products that make home access easier, and put you in control of how you come and go.

All of our LiftMaster models offer the ultimate in safety and security features, and are available with a variety of horsepower levels and drive systems for all types of homes and applications. They are also proven to withstand even the harshest of elements and years of extended use, and are available with innovative accessories designed to make home access even more convenient.

Alpha One Door Systems also offers entry doors. Our entry door systems capture the essence of your home with beautiful door designs and decorative glass with complementing sidelites, transoms and garage door windows, all designed to enhance any home’s architectural style and increase your curb appeal.

Call us today at (416) 837-7668 or (905) 542-0819 to get the garage door that is right for your home.


Alpha One Door Systems is a proud supporter of the Princess Margaret Hospital Foundation.

Alpha One Door Systems is also a proud supporter of the Wielka Orkiestra Swiatecznej Pomocy (The Great Orchestra of Christmas Charity). Through their work WOSP helps fund children's hospitals in Poland and spread the ideology of kindness, friendship, tolerance and openness.

Service Area

We provide garage doors sales and service in Mississauga, Oakville, Burlington, Milton, Georgetown, Brampton, Etobicoke and surrounding areas