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Replacement Windows FAQ
Replacing old windows or doors eliminates drafts, reduces heat loss, and makes your home much more energy-efficient — saving you money and improving overall comfort.
What are custom windows?
Custom windows are made to fit your exact opening, unlike standard windows that are only available in limited sizes. A custom window ensures a perfect fit, maximizes the viewing area, creates a cleaner installation, and enhances the appearance of your home.
What is a replacement window?
A replacement window is a new unit made to match the exact size of your existing window opening. It allows you to easily refresh the look of your home, improve comfort, and reduce heat loss — without major structural changes.
What is air infiltration?
Air infiltration is the unwanted flow of outdoor air into a home through leaks or gaps, caused by wind or pressure differences. Energy-efficient windows minimize air infiltration to keep your home comfortable year-round.
What is a "rough opening"?
A rough opening is the framed space in which a window or door is installed. Typically, it should be about 1/2 inch larger than the frame’s width and height to allow proper fitting.
What does it mean when a window has “failed”?
A window is considered failed when it no longer performs properly — most commonly when moisture appears between the panes of glass. Failure can happen due to:
- Leakage: poor fit, cracked frame, or glazing issues.
- Seal failure: moisture or condensation forming between panes.
What is warm-edge technology?
Most Canadian windows use double-pane glass with a spacer between panes to improve insulation. Traditional spacers are aluminum, which easily conducts heat and reduces energy efficiency. Warm-edge technology uses improved spacer materials that reduce energy transfer, helping windows perform better. Keep in mind, however, that frame design is just as important as glass type.
What is the U-value?
The U-value measures a window’s thermal efficiency. It considers the seal type, air space between panes, and material conductivity (vinyl, aluminum, or wood). The lower the U-value, the better the insulation and energy savings.
What is Low-E glass?
Low-emissivity (Low-E) glass has a special coating that reflects heat and light. In summer, Low-E glass reflects solar heat to keep your home cool; in winter, it helps retain indoor warmth. This improves comfort and reduces energy bills.
What are vinyl windows made of and what are their advantages?
Vinyl windows are made of polyvinyl chloride (PVC), a strong and durable plastic material. Advantages include excellent insulation, many shape and style options, easy maintenance, long lifespan, and affordability — making them one of the most popular replacement window choices.
