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  • Thermotech Fiberglass Fenestration Ltd
    Thermotech Fiberglass Fenestration Ltd
    888.930.9445
    42 Antares Dr, K2E 7Y4  Nepean

    Meeting Energy Star criteria is the finish line for a normal window company.  For Thermotech, Energy Star’s criteria are the starting point. Most of our windows insulate 50% better and allow twice the passive solar gain of typical Energy Star windows.