Your Safety and Ours, First
Dear customers, to help prevent the spread of COVID-19, we are implementing extra safety measures, at all steps of the process. From sales and manufacturing to installation and after-sale service, everyone at QSI is committed to continue offering top quality and the best value in replacement windows and doors – in a safe and responsible manner.
Please reach us at 1 (866) 575-8078, or use our online form to request a quote, service, or schedule a showroom visit.
Quality Service & Installations… serving the Golden Horseshoe since 1976!
Serving the Golden Horseshoe for over 40 years, the secret to our success is really no secret at all – we take great pride in our quality, service, installations and our people. “Everyone at QSI is committed to the best window and door installation experience possible and this has been our guiding principle since 1976.”
Rely on QSI for best performance windows and doors. We are proud to offer RevoCell® windows, featuring the latest in advanced technology and qualifying for the Energy Star Most Efficient rating.
At QSI, we’re your local experts for high-end windows and doors in Hamilton and the area, including: Oakville, Burlington, Niagara, Grimsby, Halton & all surrounding municipalities. We proudly feature all our quality products on display in full scale, just how they would be installed on your own home. Our new showroom in Stoney Creek is worth the drive to Hamilton! Book your free in-home consultation or come visit our showroom at 175 Nebo Rd. Hamilton, Ontario.