Quality Entry Doors in Hamilton and the Surrounding Areas.

Enhance your curb appeal and add value and comfort to your home with a custom designed entrance door system manufactured using insulated steel or wood grained fibreglass panels. French design swinging or sliding patio doors in two, three and four panels enhancing your view, enjoying the outdoors in complete comfort.

All QSI exterior doors are ENERGY STAR approved, constructed with a performance package that is unrivaled in the industry!

Founded in 1976, QSI is one of the Golden Horseshoe’s most reputable Entry Door companies, with sales and installation teams working year round – remarkable given the harsh Southern Ontario winter weather.

QSI’s newly renovated 6,000 sq ft head office and showroom facility in Hamilton offers fully operational, full size displays for you to come and visit. Customers are invited to experience the quality that is synonymous with our high performance product, installation and people.

QSI are your entry door experts in Burlington, Hamilton, Grimsby, Oakville and any surrounding areas.

Request a Free Quote

Schedule your free in-home, no-obligation quote today.


Steel doors remain the choice of most homeowners. Steel doors have lasted the test of time. These doors consist of heavy gauge galvanized steel.


Fibreglass entrance doors are becoming more popular with homeowners who desire the look of wood yet are looking for energy efficiency.


Your family’s security is never compromised with our high quality entry door hardware systems, which are available in an array of styles.


*Easy Pay Plans require a minimum down payment. OAC Financing for installed products only. Deposit payable at time of purchase. Offer not applicable on basement windows, storm door purchases, or retractable screens. **Offer valid only on purchases made between May 1st 2019 to June 30th 2019.

Image Gallery