AJR Windows Tech is a vinyl window manufacturing company for the past six years, we are specialized in designing variety of custom size vinyl windows, doors, patio enclosures, porch enclosures and any shapes. PVC technology is an innovative solution to today’s market. Poly Vinyl Chloride (PVC) excels in all climates and is an excellent insulator against hot and cold temperatures. Natural white color PVC will not warp or fade when compared to other colors and it has superior exterior weathering and impact retention. A clear decision makes your life in difference.