C in Calgary

“Hired GDS Windows in 2014 to help us with our custom sunroom. They installed numerous windows and a door, plus necessary framing in the new room. Seven years later, we can strongly attest to the quality craftsmanship and durability that GDS provided. Since then, we have hired Gary back multiple times for additional windows and doors and are very satisfied. Gary is so accommodating, knowledgeable and efficient. We love dealing with this company because we get better quality product and install for far less money. They stand behind their work and are the best at what they do.” - Russ & Monty Laing **Written for elderly parents who are the clients