Energy Efficiency and Sash Windows – What You Need to Know
Sash windows are a timeless feature in many homes, known for their classic charm and elegant design. However, they’ve often been criticised for being less energy-efficient than modern window types. But it’s simply not true! Advancements in technology and design mean that modern sash windows can now be both stylish and highly energy-efficient.
Here’s what you need to know:
Modern Sash Windows:
Newer sash windows are designed with energy efficiency in mind. They come with double glazing or even vacuum insulating glass, which helps insulate your home to the very highest standards, reducing heat loss and keeping rooms warmer.
Draught Proofing:
Older sash windows are notorious for letting in drafts. Modern sash windows incorporate efficient draught-proofing strips which significantly reduce air leakage and improve overall insulation.
Energy-Saving Materials:
Modern sash windows can be made from energy-efficient materials like uPVC. These materials prevent excessive heat transfer, keeping your home cosy and reducing heating bills.
Sustainability:
Investing in energy-efficient sash windows not only lowers your energy consumption but also reduces your carbon footprint, making your home more eco-friendly.
Upgrading to energy-efficient sash windows allows you to enjoy their historic charm without sacrificing modern comfort or sustainability. It’s the perfect blend of tradition and technology!
Get In Touch
Please get in touch if you are considering a replacement sash project, and remember, we have the full range of traditional timber alternative sash windows, including the Bygone sash window to view in our showroom. Please let us know if you would like to arrange a visit.

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