Energy Savings Calculator

Upgrading to modern energy-efficient windows can significantly reduce your energy bills, especially in Ottawa’s cold winters and hot summers. This calculator helps you estimate how much you can save by installing new windows in your home.

Disclaimer: This tool provides an estimate based on the data you provide. Actual energy savings may vary depending on your home's insulation, the local climate, and the specific windows you choose. For an accurate assessment, we recommend a professional evaluation of your home.

Understanding Window Efficiency Improvements

To get the most out of your calculator results, it’s helpful to know how much more efficient today's windows are compared to older ones. Here are some common comparisons:

• Single Pane vs. Double Glazed Windows: Single-pane windows are far less efficient, offering minimal insulation. Double-glazed windows are typically 50-70% more energy-efficient than single-pane windows, thanks to the insulated glass and inert gas fill between the panes.
• Double Glazed vs. Triple Glazed Windows: Triple-glazed windows provide even better insulation than double-glazed, usually offering a 20-30% improvement in energy efficiency. These windows are particularly beneficial in extreme climates, like Ottawa's cold winters.
• Older Windows (15-20 Years Old): Windows from 15-20 years ago were much less efficient. Modern windows, especially those with Low-E coatings, better insulating frames, and advanced glazing technologies, can be 30-50% more energy-efficient than windows from this period.

Choosing a Percentage for Your Savings Estimate:

• Single-pane to double-pane upgrade: Use an efficiency improvement estimate of 50-70%.
• Double-pane to triple-pane upgrade: Use an improvement of 20-30%.
• Old (15-20 years) windows to modern energy-efficient windows: Use an improvement estimate of 30-50%.

Enter the percentage that best matches your scenario into the calculator to estimate your energy savings.