Top-25 Popular Questions Homeowners Ask About Window Replacement

Every window replacement appointment begins with questions. Lots of them, to be honest. Homeowners often ask about the cost of new windows, which styles suit their rooms, if triple-pane glass is worth it, how long installation takes, and why their old windows feel drafty even if they look “fine.”

These are all great questions to ask.

Most people don’t replace their windows very often. For many Canadian homeowners, it’s a project that only happens every 20 years or even once in a lifetime and can impact comfort, energy bills, curb appeal, home value, and even daily noise. That’s why our experts take time during free consultations to explain the details, compare options, and help homeowners avoid costly mistakes.

Here are 20 of the most common questions people ask about window replacement, along with clear answers to help you plan your project confidently.

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Popular Window Styles: A Quick Homeowner’s Checklist

1. What is a casement window?

A casement window is hinged on the side and opens outward like a door using a crank. It provides great ventilation, seals tightly for energy efficiency, and offers clear views, making it a popular choice in Canadian homes.

2. What is a double-hung window?

A double-hung window has two sashes that slide up and down. Both the top and bottom sections can open, which improves airflow and makes cleaning from inside easier.

3. What is a bay window?

A bay window extends outward from the house in three sections, usually with a large center window and smaller windows on each side. It adds space, natural light, and visual interest.

4. What is an awning window?

An awning window is hinged at the top and opens outward from the bottom, creating a canopy that helps keep out rain. It’s great for ventilation, even during light rain, and works well in bathrooms, basements, and kitchens.

5. What is a picture window?

A picture window is a large fixed pane that gives you clear views and lots of natural light. It doesn’t open, so it’s very energy-efficient when sealed properly.

6. What is a transom window?

A transom window is a small horizontal or arched window placed above a door or larger window. It lets in extra light and adds a decorative touch.

7. What does egress window mean?

An egress window is a window that opens wide enough to serve as an emergency exit. Building codes usually require them in bedrooms and basements.

Home Windows Maintenance 101

8. How to stop condensation on windows?

Lower indoor humidity with dehumidifiers, make sure kitchens and bathrooms are well ventilated, and keep blinds a bit open for air flow. Upgrading to energy-efficient windows with warm-edge spacers can also help reduce window condensation over time.

9. How to prevent condensation on windows?

Keep indoor humidity below 40%, make sure your home is well ventilated, and use ceiling fans to help air circulate. Installing triple-pane windows with Low-E coatings can also lower the risk of condensation.

10. How to clean window screens without removing them?

Use a handheld vacuum with a soft brush to remove dust and debris. Then, wipe both sides of the screen gently with a microfibre cloth dipped in mild soapy water.

11. How to clean black mould from windows?

Put on gloves and a mask. Mix one part vinegar with three parts water, apply it to the mouldy area, scrub gently, and dry the area well. Fix any moisture issues to prevent window mould from returning.

All About Replacement Window Sizes

12. What are standard window sizes in Canada?

Standard window sizes in Canada depend on the style, but most are between 24 and 72 inches wide and 24 to 60 inches high. Bedrooms often have 36″ x 48″ or 48″ x 48″ windows. Living rooms might use wider picture, bay, or combination windows. In many cases, especially in older homes, replacement windows are custom-made to fit the current opening.

13. Can replacement windows be made in custom sizes?

Yes, replacement windows can be made in custom sizes to fit your home’s exact opening. This is usually the best choice because it avoids major structural changes, helps with airtightness, and gives a neat finish. Custom windows are especially helpful for older homes, unique openings, basements, and large feature windows.

14. What are the size requirements for egress windows?

In Canada, building codes usually require egress windows to have an opening of at least 3.77 square feet, with both the height and width at least 15 inches. Requirements can vary by province, so always check your local building code.

15. How to measure windows for replacement?

To measure for replacement windows, check the width and height inside the window frame at three spots each, and use the smallest measurements. Write them down in inches. Careful measuring helps your new windows fit well and work as they should.

Popular Questions About Windows Energy-Efficiency

16. How to insulate windows for winter?

Add weatherstripping, put up insulating film, and seal any gaps with caulk. Hanging heavy thermal curtains can help keep your home warmer. For a long-term solution, think about upgrading to triple-pane energy-efficient windows.

17. How long do vinyl windows last?

If installed and maintained well, high-quality vinyl windows usually last 20 to 30 years in Canadian climates. They are durable and help save energy.

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18. How energy-efficient should home windows be?

Choose ENERGY STAR®-certified windows with an energy rating of at least 34. Most modern vinyl triple-pane windows meet this standard. These windows also qualify for many local rebates and loans.

19. What are triple-pane windows?

Triple-pane windows use three layers of glass with two insulated spaces in between, often filled with argon or krypton gas to boost thermal performance. Unlike older single-pane or standard double-pane windows, they help keep heat inside, make your home more comfortable, cut down on outside noise, and lower the risk of condensation during cold Canadian winters.

20. Are triple-pane windows better than double-pane windows?

Triple-pane windows generally work better than double-pane windows, especially in cold climates. New triple-glazed windows can offer up to 55% greater energy efficiency than older models. They offer stronger insulation, better energy efficiency, quieter rooms, and more stable indoor temperatures. Double-pane windows can still be a good option in milder areas or for budget-conscious homeowners, but for Canadian homeowners who want the most comfort and energy savings, triple-pane windows are often the best long-term choice.

Window Replacement Costs 101

21. How much does it cost to replace windows?

In Canada, replacing a window usually costs between $800 and $1,500 per unit, including supply and installation. The price depends on the window’s size, style, glass type, and how it’s installed. Energy-efficient upgrades may cost more, but they can make your home more comfortable and help lower your heating bills.

22. Do window companies offer discounts on replacement windows?

Yes, many window companies have seasonal promotions, installation discounts, financing plans, or package deals for bigger projects. You can often save more by replacing several windows at once instead of just one or two. During your free consultation, ask about current offers and whether discounts apply to the whole project, installation, upgrades, or only certain products.

23. How can I save money on window replacement?

To save money on window replacement, compare quotes, replace several windows at once, pick the right style for each room, and avoid extra structural changes. Check for local, provincial, and federal rebates on energy-efficient windows, as these programs can lower your final cost. Look for ENERGY STAR® products, ask about financing, and see if your window company helps with rebate paperwork.

24. Is it cheaper to replace all windows at once?

Replacing all your windows at once is often more cost-effective than doing them one at a time. A full-home project can cut down on repeated labour, travel, and setup costs, and it also improves energy efficiency throughout your house. If you need to stick to a budget, replacing windows in stages is still a good option.

25. What affects the cost of window replacement?

The final cost depends on the window’s size, style, glass package, colour, hardware, how complex the installation is, and if extra work is needed around the opening. Large casement windows, picture windows, bay or bow windows, custom colours, triple-pane glass, and full-frame replacements usually cost more than standard slider or hung windows.