Our Guarantee

Thermal Performance is a quality window and door company specializing in window sales and installations. We are currently serving the South Jersey / Central New Jersey area and the Philadelphia Metropolitan area.

A high quality product at a fair price is what customers have come to expect of Thermal Performance Window and Door Company. There are absolutely no silly gimmicks, misleading ads, or high commissioned sales staffing. We are simply a professional family business dedicated to quality and affordability.

Thermal Performance guarantees to double the discounts of any competitors offering a lower price, provided the competitor has been in business a minimum of ten years, a member of the better business bureau and offer comparable products.