The before photo shows a Scarborough red-brick bungalow with a dated three-panel slider or hung window — the kind with horizontal muntins that chop the view into segments and offer only limited ventilation through a side-by-side opening mechanism. The after photo shows the same opening transformed: a three-unit casement combination with two operable flankers and a fixed centre pane, the entire surface now clear glass with only the slim vinyl frame dividing the view. Between the two is a complete stud-to-stud renovation, interior plaster work, and exterior double brick restoration that most homeowners never see but changes everything about how the window will perform for the next thirty years.
Why a slider or hung window stops working in a Scarborough home
A slider or hung window opens by gliding one panel past another in a track, and that track is where the performance problems concentrate. Over time, debris and moisture accumulate, the track becomes sticky or misaligned, and the seal around the moving pane degrades. More importantly, a slider or hung window only ever gives you half the opening at once — one panel slides, the other stays fixed — so ventilation is limited to a narrow side channel. For a homeowner in Scarborough working through humid summers and cold winters with limited airflow control, that's a meaningful constraint on comfort.
Why casements work differently
A casement window swings outward on hinges, like a door. There's no track to get dirty, no sliding seal degrading over years, and both flanking panels can open fully to the same degree, flooding the room with airflow when you want it. A roto lock handle engages multiple points around the sash perimeter, pulling the window tightly closed when sealed — a fundamentally different sealing mechanism than a slider or hung window's edge seal. For a Scarborough home managing Ontario's freeze-thaw winters, that multi-point engagement means consistent, durable sealing without annual maintenance.
The full renovation scope
This wasn't a simple sash swap. The crew removed the entire old window down to the structural studs, exposing the wall cavity. New framing was installed where needed, and the cavity was insulated throughout — work an insert replacement never reaches. The new three-unit casement window (two operable units flanking a fixed centre pane) was set level and true, then the interior was finished with fresh plaster extending wall-to-wall. On the exterior, the double brick veneer was carefully restored, ensuring the installation didn't compromise the weather seal or the masonry appearance.
What the three-unit layout accomplishes
The fixed centre pane gives an unbroken view straight out — no muntins, no grid pattern, just clear glass. The two casement units on either side offer independent ventilation control; open one for a breeze, open both for cross-flow. This configuration is common in modern renovations because it balances the view homeowners want with the flexibility they need. The roto lock handles provide smooth operation and durable sealing without the track maintenance a slider or hung window demands or the crank-and-clean cycle older casements required.
Why Scarborough winters demand stud-to-stud
An insert replacement saves cost by working inside the old frame's dimensions, but that frame's cavity insulation — or lack thereof — stays as-is. A stud-to-stud approach in a Scarborough renovation lets the installer verify and improve what's behind the wall, adding insulation and correcting any settlement or moisture issues the old frame was hiding. Over a thirty-year warranty, that extra work at the start compounds into fewer callbacks, better energy performance, and a window that actually performs as designed through every Ontario season.
Rebate note: Window replacements like this one may qualify for up to $100 per rough opening under the Home Renovation Savings™ program when you bundle two or more eligible upgrades — ENERGY STAR® certified products are required, and the energy assessment must happen before work begins.
Ready to modernize your Scarborough window?
If your home still has a dated slider or hung window, or any original window from decades back, a modern casement replacement with the full stud-to-stud scope ensures you're not just getting new glass, you're getting a properly insulated, carefully sealed installation built to last. Every Trust Build installation is completed by our own in-house crews and backed by a lifetime transferable warranty, with 0% financing available.
Get a free quote: request a quote online. Or reach us at hello@trustbuildwindows.com · 1-800-563-1273.
