Energy Efficient Windows in Horsham and West Sussex
Keep Your Home Warmer with Energy-Efficient Windows
Window Mart supplies and installs A-rated energy efficient windows for homes across Horsham and West Sussex. Our secure uPVC windows combine multi-chambered frames, low-emissivity glass, argon-filled glazing and warm-edge spacers to reduce heat loss, improve comfort and help lower household energy use.
Every window is made to suit your home and professionally installed by our experienced team. Visit our Horsham showroom or request a free, no-obligation quotation to discuss the most suitable glazing and window styles for your property.
What Do A-Rated Windows and U-Values Mean?
The British Fenestration Rating Council’s Window Energy Rating measures the overall energy performance of a complete window. The rating considers heat loss through the frame and glass, air leakage and the useful heat gained from sunlight. An A-rated window provides a strong balance of these factors and can help make your home warmer and more comfortable.
A U-value measures how easily heat passes through a window. The lower the U-value, the better the window is at retaining heat. The precise U-value will depend on the selected frame, glass and overall window specification, so we will explain the available options when preparing your quotation.
Thermally Efficient 70mm uPVC Frames
Our multi-chambered 70mm uPVC frames are designed to reduce heat transfer and limit draughts and air leakage. The chambered construction helps retain warmth inside your home while providing a strong, durable and low-maintenance window frame.
Low-E Argon-Filled Double Glazing
Low-emissivity glass has a special coating that reflects heat back into your home while still allowing natural light and useful warmth from the sun to enter. Our 28mm sealed glazing units include an argon-filled cavity, creating an additional insulating barrier that helps reduce heat loss through the glass.
Warm-Edge Spacer Bars
Warm-edge spacer bars separate the panes around the edge of the sealed glazing unit. Their non-metal construction conducts less heat than traditional metal spacers, helping to improve thermal performance and reduce the likelihood of condensation around the edge of the glass. They can also contribute to improved sound insulation and a longer-lasting sealed unit.
Benefits of Energy Efficient Windows
Help Reduce Heating Costs
HeatGuard® energy efficient windows are designed to reduce heat loss and retain more warmth inside your home. This can reduce the amount of energy needed to maintain a comfortable temperature and may help lower household heating bills. Product testing indicates potential savings of up to 25%, although actual savings will depend on your property and energy use.
A Quieter, More Comfortable Home
High-performance glazing and insulated frames can help reduce the amount of outside noise entering your home. HeatGuard® product information reports noise reduction of up to 2dB, with the improvement depending on your existing windows, selected glazing and surrounding noise levels.
Less Condensation
Improved insulation helps keep the internal glass surface warmer, reducing the likelihood of condensation around your windows. HeatGuard® product information indicates reductions of up to 70% in suitable conditions. Heating, ventilation and indoor humidity will also affect condensation levels.
Durable and Low Maintenance
Multi-chambered uPVC frames and high-performance sealed glazing units provide lasting thermal performance with very little maintenance. HeatGuard® windows are designed to remain efficient, weather-resistant and attractive for many years.
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Secure Windows for Greater Peace of Mind
Our energy efficient windows are designed to improve security as well as comfort. They are fitted with robust locking systems and durable handles selected to help protect your home against forced entry.
The locking components are purpose-designed and sourced in the UK, with relevant products tested to recognised British Standards for enhanced security. The exact security specification depends on the window style and configuration you choose, and our team will explain the available options when preparing your quotation.
Energy Efficient Windows FAQs
What are energy efficient windows?
Energy efficient windows combine insulated frames, high-performance glazing and effective seals to reduce heat loss and draughts. They can help your home feel warmer and reduce the energy required to maintain a comfortable temperature.
What does an A-rated window mean?
An A-rated window has achieved a strong Window Energy Rating based on heat loss, air leakage and useful heat gained from sunlight. The rating assesses the complete window rather than the glass alone.
What is a good U-value for replacement windows?
A lower U-value means less heat passes through the window. The appropriate figure depends on the chosen frame, glass and complete window specification. We will explain the available ratings and U-values when preparing your quotation.
Can energy efficient windows reduce heating bills?
Replacing poorly performing windows can reduce heat loss and may lower the amount of energy required to heat your home. Actual savings vary according to the property, existing windows, heating system and household energy use.
Will new windows help reduce condensation?
Energy efficient glazing can help by keeping the internal glass surface warmer. However, heating, ventilation and indoor humidity also affect condensation, so new windows cannot eliminate every cause.
Where does Window Mart install energy efficient windows?
Window Mart installs replacement windows throughout Horsham and the surrounding West Sussex area. You can also visit our showroom at Old Barn Garden Centre in Dial Post to discuss the available options.
Why Choose Us?
Price Match Guarantee
Our Price Match Guarantee means we will match any like for like quotation with the same features, specifications and warranties.
All Seasons Living
Combine the light and airy feel of a conservatory, yet with the solid, tiled roof, and energy efficiency of an extension.
Over 50 Front Doors
We have a wide range of over 50 white, coloured & woodgrained Front PVCu and Composite Doors to choose from. Starting from just £645.
FREE Quotation
Whatever your requirements, please contact us now for a comprehensive FREE no obligation quotation, or just for some friendly advice.
Best Price Promise GUARANTEE*
*Provide us with a Like for Like quotation with the same features, specifications and warranties from a comparable company,and we will match the PRICE.
Call us on Now 01403 711 936
Email: [email protected]
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About
Established in 1998, Window Mart have gone from strength to strength culminating in the opening of our new show complex at Old Barn Garden Centre near Horsham. All Window Mart staff are employed by the company and drive fully equipped company vehicles. We have our own building team for groundwork and brickwork. In our showroom an extensive range of conservatories, doors and windows can be viewed. Excellence is our commitment and we are here to make sure you get the very best in service and quality.
Show Complex
Old Barn Garden Centre,
Worthing Road, Dial Post,
Horsham, West Sussex,
RH13 8NR
Opening times:
Mon -Sat: 10am – 4pm
Sunday: 11.30am – 3.30pm