Windows & Doors Installation & Service in Markham, Ontario

"Gihan's response to my call was quick and got the quotation right away. He reached out to me after our two week..."

"Very professional crew! Always on time! Great communication and very satisfied with end product. Would highly..."

"Very effective & efficient work I was so impressed with the customer service I received at this company. The team..."

"I had a broken window that I had to repair, a guy named Jack is very nice and professional who arranged a temporary..."

"Got problems with a window frame in an old double-hung window. The lower frame was not sliding properly and were not..."

"I recently had all my windows replaced by this company, and Im beyond satisfied! The installation was quick and..."

"Transparent, on time, efficient, superb window/door quality, and above all amazing prices and customer service. Thank..."

"We were fully satisfied with Brian's work. I would highlights three points from our experience with Brian and his..."

"What truly stood out to me was the personalized service I received. Instead of simply offering a catalog of door..."

"We had our garage paved resulting in our garage door being 7 inches too large .Our door was redwood door which we..."

"The windows looks great! Love the idea of new illuminum on the outside to make the windows look fresh and new...."

"Thanks Glenn and Lucy! What a pleasure working with such a service oriented company! From the initial contact with..."

"Whatever Optima sells -- buy it! Very very impressed with staff and cx service. Very high caliber. Everything they..."

"Rick Starr visited my home to quote on 2 new basement windows and I ended up replacing a screen door also. Rick was..."

"I needed new windows for my house as it is around 15 years old. I was recommended to speak with Marcello at Demar as..."