Should I replace my storm windows or upgrade to double-pane?

If you have single-pane windows with storm windows, upgrading to quality double or triple-pane windows will provide significantly better energy efficiency, comfort, and convenience than keeping the storm window setup.

Storm windows were a practical solution when single-pane windows were standard, but modern double and triple-pane windows outperform this combination in almost every way. Quality double-pane windows with Low-E coatings and argon gas fill provide better insulation than single-pane plus storm windows, while eliminating the hassle of seasonal installation and removal. You'll also get better air sealing, reduced condensation issues, and improved sound dampening.

In Ottawa's Climate Zone 6, triple-pane windows are often the better investment for maximum energy savings. The harsh winters and temperature swings make the extra insulation worthwhile, especially with current energy costs. Triple-pane windows typically achieve U-factors around 0.20-0.25, compared to 0.35-0.50 for single-pane with storm windows.

Modern replacement windows also offer convenience benefits you can't get with storm windows - tilt-in sashes for easy cleaning, integrated screens, and consistent performance year-round. Plus, you may qualify for Canada Greener Homes Grant rebates when upgrading to ENERGY STAR certified windows (U-factor 1.22 or lower).

Cost-wise in the Ottawa market, quality double-pane replacement windows typically run $400-800 per window installed, while triple-pane ranges $600-1,200. When you factor in long-term energy savings, reduced maintenance, and improved home value, replacement windows usually provide better return on investment than maintaining an aging storm window system.

For a free estimate on upgrading your windows with proper sizing and energy efficiency recommendations for your specific home, request a quote from Ottawa Window Pros.