
Casement Windows
Casement windows open outward and can provide excellent ventilation with a large unobstructed glass area. They are a common choice for bedrooms, living spaces and many existing replacement openings.
Explore casement windowsWindows & Doors in Barrie
Proplas supplies and installs replacement windows, entry doors and patio doors for homeowners in Barrie. We help with product selection, accurate measurement and installation, with window and door options suited to Southern Ontario homes and weather.

Barrie replacement projects
Replacing windows or exterior doors is usually about more than changing the appearance of a house. Older units can become difficult to operate, seals can deteriorate, glass performance may no longer suit the home, and previous installations can develop drafts or exterior sealing problems.
Barrie also has a wide range of housing. Some projects involve older openings where existing trim, jamb depth and previous installation methods need careful attention. Others involve newer homes where the priority may be improved glass, easier operation, a different window style or a more distinctive front entrance.
Proplas starts with the actual opening and the way the homeowner uses the space. We measure the project, review suitable configurations and provide a written quotation for the selected products and installation scope.
Window styles
The right replacement window depends on the room, opening size, ventilation needs, view and desired energy performance. Proplas offers multiple operating and fixed window configurations rather than treating every opening the same way.

Casement windows open outward and can provide excellent ventilation with a large unobstructed glass area. They are a common choice for bedrooms, living spaces and many existing replacement openings.
Explore casement windows
Awning windows hinge at the top and open outward. They are useful where ventilation is wanted while keeping the opening relatively compact.
Explore awning windows
Sliding windows are straightforward to operate and can work well where an outward-opening sash is undesirable.
Explore slider windows
Single- and double-hung configurations retain a traditional vertical appearance while providing operable ventilation.
Explore hung windows
Fixed glass is useful where the priority is daylight, view and a clean appearance rather than ventilation.
Explore picture & fixed windows
Larger openings can combine fixed and operating sections or use specialty shapes to suit the architecture of the house.
Explore specialty & combination windowsSee the broader range of available configurations, glass and design choices in our window options.
Exterior door systems
Windows are only part of the exterior envelope. Proplas also supplies and installs exterior door systems for Barrie homeowners who are replacing an aging entrance, changing the look of the front elevation or improving access to a deck or backyard.
Steel doors are a practical exterior-door option with a wide range of panel, glass and colour configurations.
Fibreglass doors offer another durable option and can provide wood-inspired finishes and a broad range of decorative designs.
Sliding patio doors provide large glass areas without requiring interior or exterior swing space.
For larger openings, lift-and-slide systems can create wider expanses of glass and a more architectural connection between the house and outdoor space.




Barrie Project
This Barrie project involved replacement windows on the front elevation of a brick home. The photographs below show the house before the work and after the new windows were installed.


A replacement project like this involves more than ordering a window that appears to be the same size as the old one. The existing opening, exterior materials, installation method and interior finishing conditions all need to be considered before the replacement units are ordered.
Project progress
The project was also documented during installation. These short clips show the sequence from removal of the existing windows through the open-window stage and installation of the replacement units.
Project approach
We look at the existing windows or doors, the surrounding materials, operating problems and the way each opening is used.
Replacement units must be ordered for the actual installation conditions. Measurements are taken with the intended replacement method and finishing details in mind.
We review suitable styles, glass and configuration choices so each opening can be selected for ventilation, light, appearance and practical use.
The existing windows or doors are removed as required for the agreed installation method while the surrounding opening is assessed.
The new unit is positioned, secured, insulated and integrated with the surrounding opening using the appropriate installation and exterior sealing details.
The completed units are checked for operation and the finishing work included in the quotation is completed.
Learn more about our window installation approach.
Service area
Proplas serves homeowners throughout Barrie and surrounding Simcoe County communities from our Innisfil base.
Within Barrie, replacement projects can range from established homes around Allandale and central Barrie to newer residential areas including Holly, Ardagh and Painswick. The age and construction of the home can affect the opening, jamb depth, exterior finishing and replacement method, so each project is measured individually rather than priced from a generic city template.
We also serve nearby communities including Innisfil and other areas within our Southern Ontario service range.
Before you replace


Decide whether the opening needs ventilation or whether a fixed window would provide a cleaner view and larger glass area.
Glass selection affects thermal performance, solar gain, comfort and other characteristics of the finished window. Compare complete window specifications rather than choosing from one isolated number.
Older frames, exterior capping, masonry and interior jambs can affect how a replacement window should be measured and installed.
Confirm whether existing casing and jambs are remaining or whether new interior finishing is part of the project.
The transition between the new window and brick, siding or other exterior materials needs to be included in the installation plan.
Common questions
Common reasons include failed insulated glass, persistent drafts, damaged frames or hardware, poor operation, deteriorated exterior sealing or a desire to change the window configuration. A site assessment can help determine whether the problem is with the window itself, the installation or a serviceable component.
Often, yes. An existing slider may sometimes be replaced with a casement or another suitable configuration, for example. The opening size, egress requirements where applicable, ventilation needs and exterior appearance should all be considered before changing styles.
Yes. Proplas supplies and installs replacement windows as well as steel and fibreglass entry doors and patio-door systems. The exact products and installation scope are confirmed during quotation.
No. Homeowners can start by contacting Proplas about the project. Accurate final measurements are taken as part of planning the replacement units.
Window replacement can be completed during much of the year, but weather conditions, the scope of the project and the number of openings all affect scheduling. Openings are managed individually to limit the amount of time the home is exposed during replacement.
Proplas serves Barrie from Innisfil. Do not claim a separate Barrie office unless one actually exists.