In a Bi-Glass conversion, your original window sash is removed from the frame by a trained technician. The sash is taken outside your home to a mobile workshop. Here, the technician uses a tool to route out the old window putty and glass. This makes room for the new, insulated glass, which is installed using glazing tape and caulking. The interior muntins (grill work) always remain intact and virtually unchanged. On the exterior of the glass, we apply a muntin that matches the interior grid, thereby retaining the authentic look of your original, single-glazed window. In addition, we install new jamb liners, hidden balances, weather-stripping, insulation, and locks to eliminate all drafts. The sashes are then reinstalled into their openings and adjusted to fit snugly.

A Bi-Glass System gives you state-of-the-art energy efficiency, while retaining the character of your windows. With this system, your windows are efficient, double-glazed, tiltable units, comparable to commercially manufactured wood windows.