Avant PVC-u Windows:

Our double glazed and triple glazed uPVC windows use cutting edge technology so that the windows  get are not only great looking but are tested to exceed the standards for security, heat retention, and weather performance.

Our top-performing A++ rated triple-glazed windows are a great choice to reduce heat loss even further. They are designed with the latest energy-saving glazing technology in mind.

Keep your home warm, quiet and safe with new windows from Avant Windows

Choice of double & triple glazed windows:


Energy-efficient windows and doors don’t happen by chance. It’s a long process of design, refinement and testing that brings Band ‘A’ and ‘A+’ rated windows to the marketplace. We‘re ready to help you pass on the benefits to your customers.

  • Our U-ComplyN tool allows you to calculate Window Energy Ratings and U-values ensuring that it’s easy for you to comply with CE Marking and Document L of the Building Regulations
  • Enjoy the sales benefits of advanced features like AEROFRAMETM thermal wall technology
  • Use our RCM thermal inserts which can improve U-values by almost 25% without resorting to expensive technologies
  • We’ll provide technical support to help you with the cost-effective production of energy-efficient windows
  • Marketing tools to help you promote energy-efficient windows and doors.

Avant Windows Gallery