A Guide To Energy Efficient Windows

Anglian energy efficient windows help you save money on your heating bills and lower your carbon footprint. Our double glazed windows are A-rated as standard for energy efficiency, and our triple glazing is rated up to A++ with uPVC flush windows. Explore materials and styles to see how you could improve your home's energy performance.

Energy Efficiency by Type

Learning about the energy efficiency of windows helps you to make informed choices on ways to help lower your heating bills and carbon footprint.

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Wooden flush casement kitchen window in Cream with cottage bars from the Anglian flush window range

Energy-Efficient Windows And Doors Savings: The Complete Guide

See how much you could save on your energy bills when you upgrade to Anglian energy efficient windows.

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Dual Agate grey upvc casement windows (1)

Energy Ratings Explained

Our guide to energy ratings cuts through the jargon to help you make better, informed decisions on your new windows.

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Double glazed white uPVC casement window side-hung from the Anglian uPVC casement window range

How do double and triple glazed windows work?

Reducing energy bills, increasing security and insulating the home, double glazed windows are becoming essential for every homeowner. But how exactly do they do this? We're here to explain the science behind our energy-efficient windows.

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Reasons to Choose Energy Efficient Windows

  1. Improve Thermal Efficiency

    Our A-rated, A+ and A++ rated energy efficient windows improve thermal efficiency and helps keep your home warm. They make the most of solar energy and prevent warm air escaping. This helps you maintain a comfortable temperature in your home all year round.

  2. Reduce your Carbon Footprint

    Energy efficient windows reduce the amount of energy you use. Your home loses less heat, meaning you use your heating less, lowering your energy consumption. Using less energy means you produce less CO2, and saves you money on bills too.

  3. Less Condensation

    Condensation forms on windows when moist air meets cold glass. Spacer bars between the panes create a thermal break, preventing inner glass getting too cold. Low-E glass reflects heat back into your room, keeping inner panes warm in warm rooms. These features in our windows reduce the risk of condensation forming.

  4. Add Value to your Home

    A low score on an Energy Performance Certificate could lower the chances of selling your house. A Government report on property sales found making energy saving improvements could increase the value of your home by 14-38%. Upgrading your windows can increase your score, lower your bills, and add value to your home.

  5. More Cost Effective

    New windows often have higher window energy ratings than old ones. Replacing pre-2002 double glazing with our A-rated double glazing could save you £184.25 per year* on energy bills. uPVC A-rated windows are also more cost-effective compared with Aluminium and Wood, saving you money in the short and long term.

*Source Glass and Glazing Federation. † A typical detached house has 23.7m2 of windows. Based on replacing uPVC double glazed windows with a 12-14mm sealed unit and gas central heating with A-Rated thermally efficient windows.

White uPVC flush casement windows whole house (1)

Compare Energy Efficiency by Window Type

Casement Sash Tilt & Turn Bay Cottage
uPVC Wood uPVC Wood uPVC Wood uPVC Wood uPVC Wood
A++ rated - - - - - - - -
A+ rated - - - - - -
A rated - -
B rated - - -
Triple Glazing - - - - - - -

Why Anglian?

  • Flexible finance

    Spread the cost of your new windows and doors with our low rate finance plan from 12.9% APR variable.

  • Quality guaranteed

    Your windows and doors come with a 10-year guarantee and 15-year sealed unit guarantee.

  • Delivery and installation included

    The price includes the home visit or remote quotation, and the survey, manufacturing, double glazing installation and aftersales for your windows.

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Your Questions Answered by us

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