Replacement Exterior Doors

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! Contact QSI for all exterior door installtions, replacements and repairs in Burlington, Oakville, Hamilton, Grimsby and all surrounding areas.


First impressions combining style and performance in both steel and fibreglass insulated entry systems.

French Swing Patio

Update or create your backyard entrance with a classic French Door look. Enhance your view with style and comfort.

French Sliding Patio

Sliding patio doors with a waider sash combines the look of a French style door with the space saving design of a sliding door.


Aluminum storm doors add security, improve efficiency and allow maximum ventilation and natural light to your entrance.

Wood Doors

Natural wood adds character and warmth to meet your design needs. Check out MARTIN wood doors.