Window restoration: a modern alternative to window replacement

Windows are an essential part of the building envelope and they play a critical role in keeping the occupants comfortable. Depending on the window type and materials, the components’ wear cycle can be 15 to 20 years. But windows that have received regular maintenance can have a useful life well beyond these numbers.

We often see a few mechanism breakdowns and a decrease in energy efficiency before windows reach the service life promised by the manufacturer. When you notice water and air infiltrations, have trouble using the mechanism to open and close a window, hear rattling or observe condensation between the panes, you might think it’s time to replace the window.

But it’s not always necessary to replace a window when these signs of fatigue appear.

Renewing doesn’t necessarily mean replacing

Until recently, window restoration and repair was viewed as a patch-up job. Most people did not know the advantages this option offers, both economically and environmentally. Plus, it avoids sending unnecessary debris to the landfill. Window restoration gives windows a second life, at a fraction of the cost, while increasing the value of the property or building.
“Mindsets have evolved in recent years, especially for economic reasons and because consumers want to make environmentally responsible choices,” says Jean-Sébastien Basilico, president and founder of Basco World. “The sustainability aspect of a complete window restoration signals a new era for consumers and for the window and door industry.”


A window that’s cracked, damaged or has lost its seal is less energy efficient. When the window structure is in good condition, replacing the thermal pane is a much more economical and environmentally friendly option than completely replacing the window. Replacing the sealed unit restores the window’s performance, and costs about one third the price of a new window.


Along with normal wear and tear, environmental factors can damage your windows’ working parts. Hardware like hinges, handles, pivot joints, tracks, screens and weather-stripping should be of good quality and guarantee airtight closure. Maintaining windows appropriately and replacing defective parts and hardware will extend their performance and airtightness at a lower cost.


Caulking provides essential protection against air and water infiltrations, and thus also against the formation of mould. Air leaks can mean a heat loss of up to 25% in a home. So it’s crucial to check the seals to make sure you’re getting optimal thermal insulation, which also reduces electricity costs.

Ask an expert for advice

Window restoration starts with a simple tune-up and replacement of various parts. The window industry continues to move forward and to offer higher-quality products. Because there are now better replacement parts on the market, it’s possible to give your windows new life at a fraction of the cost. When you’re thinking about replacing your windows, ask an expert for their opinion first.