100% Lead-free uPVC
Window Mart Windows are made from a 100% lead-free uPVC powder compound. Their unique construction gives them excellent resistance to impact, cracking, and discoloration.
Sealed Glass Unit
Window Mart windows feature a completely sealed glass unit with 13/16″ overall thickness. We offer multiple options for glazing and thickness depending on the model.
Fusion Welded Corners
Fusion welding creates a watertight and airtight window frame. Internal walls are also welded to improve overall strength and structural integrity.
Multiple Air Chambers
Our windows have the highest number of internal air chambers, giving them outstanding insulation and sound abatement properties, as well as maximizing thermal & energy efficiency.