Box Sash Windows in your period home are a unique feature, from both an aesthetic and practical point of view. Sliding sash windows are designed to allow air to circulate, preventing the build-up of dry rot spores, dust mites and germs. PVC windows cannot do this.
Replacing your original sash windows with aluminum or uPVC windows is detrimental to the condition and value of any period house. Statistics show that in today’s housing market, original features are essential when it comes to property value.
Modern windows and materials do not lend themselves to period homes. By preserving features like these windows, you are preserving the antiquity of your home and passing it on to future generations. Box sash windows are examples of craftsmanship and design dating from the seventeenth century and represent the best of our architectural heritage. They’re the eyes of your home.
Don’t just take our word for it. Here’s a piece from the BBC website, entitled “A Plague of Plastic Windows?”
Box Sash Restoration 