How to Tell Whether Your Home Needs Full-Frame or Retrofit Windows
What Full-Frame And Retrofit Replacement Really Mean Before you compare styles or price, you need to know whether the existing frame, trim, and sill are still worth keeping. A retrofit, sometimes called an insert, keeps the old frame and replaces only the sash and glass unit inside it. Full-frame replacement removes the entire old window down to the rough opening, then installs a new unit with fresh framing, insulation, and flashing details. A window can look fi