Windows shape far more than a custom home’s façade. Learn how glazing, frames and installation affect Toronto comfort, efficiency, noise, construction cost, permits and future resale value.

Single-pane and double-pane windows may look similar, but their performance is very different. This Toronto homeowner’s guide compares energy efficiency, comfort, condensation, sound control, cost and Ontario Building Code considerations so you can choose the right window system for a renovation or custom home.