Windows
Upgrade your home with Energy Star Most Efficient 2023 Windows.
Stoney Creek, ON
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!
TESTIMONIALS
Words from our Valued Clients
Just had two new windows installed. Competitive price but best part was attention to detail and cleanliness during installation. These guys are efficient and competent and the new windows look great! Well done. You’ve earned a repeat and loyal customer!
Glenn
Burlington
We are completely satisfied with the installation, quality of the product (front door) and follow up service. We had a minor flaw in the glass and the service department promptly addressed the issue and replaced the glass insert. QSI gets top marks for standing by their products.
Tom
Hamilton
We are very impressed with QSI. The installer’s are very professional, and they got the job done quickly, but were very efficient. In every way we would rate QSI excellent!
Gramigna
Smithville
The windows are wonderful, quiet, and much warmer.The men did great work, everything placed in to a tee. The windows were framed with nice solid wood,not plastic or skimpy looking wood, nicely mitered and cleaned up after the job was finished. They took all the garbage away and left nothing behind. This job was done over a year ago and we are still very happy. Thanks guys.
Brenda
Beamsville
Phenominal. The workers worked very well together. One did one thing, while the other did something else. They cleaned up everything both inside and out. The cost is a little bit higher, but it is money well spent. I would use them again in a minute.
Jim
Haldimand
We needed windows replaced in our entire house and had QSI supply and install the windows. They were very informative during the consultation and measurement appointment. When the installers arrived, they were polite and professional. They took their time in completion of the details of installation, such as the appearance of the caulking and cleaning all of the windows when they were done. They also finished the inside of the new windows for us.
Lou
Brantford
Trust the window and door experts!
Let us do what we do :) – which is make your vision a reality.
Thank you!