How to Winterize Your Windows and Save on Heating Bills in Ottawa
Ottawa winters have a well-deserved reputation for being harsh, not to mention the frequent winter winds that are their hallmark. Heating becomes a pertinent concern — and so do heating bills. However, many homeowners aren’t aware that their windows could be the reason heating costs are reaching astronomical levels.
Air leaks from your windows create drafts that force your indoor heating system to work harder to maintain temperature, significantly increasing energy costs. Protecting and insulating your windows from Ottawa’s cold winters is the key to keeping your home warm and saving on energy bills.
Simple Ways to Winterize Your Windows
Change to Insulated Curtains
During winter, swap out sheers and lightweight curtains for heavier, insulated options to keep the cold air out. Materials such as lace, linen, and cotton are simply not heavy enough to block cold drafts. Go for several layers to stop chilly air from penetrating. For advanced options, consider energy-efficient curtains — these feature a reflective film layer that helps retain heat within the room, working in tandem with your low-e glass windows for maximum thermal performance.
Replace Weatherstripping
Replace faulty weatherstripping before winter arrives. Doing so can help prevent air leaks that overwork your HVAC system and drive up energy bills. To identify worn-out weatherstripping, light an incense stick and move it slowly along the edges of your window frames. If the smoke is blown into the room or sucked outward, there’s a draft in that area.
Replace the weatherstripping immediately to stop air leaks, keep your home comfortable, and lower your energy bill. This is especially important for operable windows like casement windows, awning windows, and double-hung windows where the seals endure regular wear from opening and closing.
Caulk Window Seals
Cracks, gaps, and worn sash seals around your windows will allow cold air in. You must create proper seals around your window frames, and re-caulking is one of the most effective DIY solutions. Use store-bought caulking material to create a waterproof sealant around cracks in your windows. First, use a putty knife to remove the old caulk material, then begin applying new caulk evenly. Give the new application at least 24 hours to harden and create a durable seal.
Put Foam in the Frames
If your windows or frames have gaps larger than two inches, standard caulk won’t be sufficient to create proper air seals. For bigger gaps, you need spray foam that expands to fill them completely. Make sure you purchase window and door gap filler specifically — this type contracts and expands with temperature changes, ensuring there’s no damage to your window frames over time.
Add Plastic Film
Install a plastic insulating film over the entire window if you have poor-performing single-pane windows. Adding the plastic film is essentially like adding an extra glass pane to the window. The film is inexpensive and easy to install — though it’s worth noting this is a temporary solution. For long-term performance, upgrading to double-pane glass or triple-pane glass delivers far superior insulation.
Replace Cracked Windows
If your window panes have cracks, consider patching them or replacing them as soon as possible. Cold weather — especially snow and chilly wind — will cause cracks to widen and may even shatter the glass entirely. For urgent situations, Centennial Glass offers emergency repair services to quickly secure your home. Our team can handle glass repair or full pane replacement depending on the severity of the damage.
Install Storm Windows
Add a storm window for extra protection, especially here in Ottawa where temperatures regularly reach sub-freezing levels. Storm windows are installed on top of existing windows to provide additional insulation and wind protection — a practical solution for older homes where full window replacement isn’t immediately in the budget.
Long-Term Solutions for Winter Window Performance
Get Energy-Efficient Windows
Lower your energy bills and cut back on repair costs by installing new energy-efficient windows. Newer windows are made using advanced materials and insulated glass units that offer superior insulation against cold weather. Energy-efficient windows ensure year-round comfort and significantly lower heating costs.
If full window replacement isn’t needed, a sealed unit or Thermopane replacement can restore thermal performance to your existing frames at a fraction of the cost. You can also enhance your current windows with safety and security window films or UV protector films for added performance benefits.
When it’s time for a full upgrade, Centennial Glass works with trusted manufacturers including Kohltech Windows and North Star Windows to provide energy-efficient windows that can save you up to 50% on your energy bills.
Count on Centennial Glass This Winter
If the windows of your Ottawa home aren’t performing efficiently anymore — or you need window repair — Centennial Glass is here to help. We offer the best window services in the Ottawa area with a full range of energy-efficient windows and replacement options to keep your home warm all winter long.
We proudly serve homeowners across Ottawa, Kanata, Stittsville, Orleans, and all surrounding areas.
Contact Centennial Glass today and talk to one of our experts to find the perfect fit for your home.