clyde windows trustpilot score

Energy Efficient Glass

Vista-Therm is a new generation of energy saving window glass that uses advanced coatings to retain more internal warmth whilst capturing free energy from natural daylight. That means lower energy bills compared to standard windows.

picture of power socket by gleb paniotov

Last updated: June 5, 2026

  • Table of contents
  • Lower your energy bills by installing Vista-Therm 

    Vista Therm is proven to be the most energy-efficient window glass available in the UK.

    Vista-Therm is a new generation of energy saving window glass that uses advanced coatings to retain more internal warmth whilst capturing free energy from natural daylight. That means lower energy bills compared to standard windows.

    Using Vista-Therm as a good reference for your window installation quote should be able to give you window quote for A rated windows using the frame of your choice, for around the same cost as less energy efficient windows.

    If you are planning to replace your existing single glazed or double glazed windows, and you want the best possible choice for energy savings, ask your installer for Vista-Therm.

    Insist on Vista-Therm for a warmer home and lower energy bills.

    What Is Energy Efficient Glass?

    A staggering 26% of all domestic heat loss escapes through the windows*. Installing energy efficient windows can save you up to 28% per year on your heating bills compared to traditional windows and frames so it is very important that when looking for a upvc window quote or prices you ask about the Energy Efficiency of the products.

    thermal diagram double glazing
    thermal diagram double glazing
    thermal icon glass
    thermal icon glass

    Research has shown that many homeowners assume that all double glazing is equally energy efficient. In fact, there are huge differences in performance and it is the glass that makes the difference.

    Vista-Therm is a new generation of energy saving window glass and the most energy efficient double glazing available. Its advanced coating technology reflects radiated heat back into the room, rather than allowing it to escape through the windows. At the same time, Vista-Therm allows free heat and light from the sun to pass through the glass.

    The result? – Lighter, brighter, warmer and more energy efficient homes thanks to the advanced thermal insulation of Vista-Therm which is 3 times more efficient than single glazed units and at least 25% more efficient than most currently installed double glazing.

    thermal icon glass
    thermal icon glass

    Free Solar Heat Gain

    Vista-Therm uses advanced coating technology to capture free energy from natural daylight to help heat the home

    heat reflecting glass
    heat reflecting glass

    Thermal Insulation

    The advanced coating reflects heat back into the room, meaning less energy is needed to heat the home to the desired temperature

    heat rating glass
    heat rating glass

    Optimal Energy Ratings

    Vista-Therm combines with virtually any window frame to achieve a Window Energy Rating (WER) of C and an A rating is easier to achieve

    tree an glass
    tree an glass

    Haze & Tint Free Windows

    Vista-Therm maximises the amount of natural light into the home, without the haze or tint effects associated with some older double glazed windows

    eliminate condensation
    eliminate condensation

    Eliminate Condensation

    Vista-Therm helps to virtually eliminate internal condensation and reduce draughts and cold spots in and around windows

    Share this article:

    More from our blog

    Your home improvement blog

    • garage conversion before

      June 12, 2026

      Garage Conversion faq

      Common questions about garage conversions in Scotland — planning approvals, costs, building requirements, and what the work involves. If you're considering a conversion, these are the questions we get asked most often. Planning & Approvals FAQ Do I need planning permission for a garage conversion in Scotland? Most attached and integral garage conversions fall under…

    • completed garage conversion heating plumbing plastering

      June 8, 2026

      Garage Conversion Habitable Room Requirements

      The specific standards your garage must meet to qualify as a habitable room in Scotland — from insulation U-values and ceiling height to fire doors and ventilation.

    • home extension inside view

      June 5, 2026

      5 Popular Home Extension Options in 2026

      From a garage conversion at £8,000 to a double-storey extension at £100,000+, there are five practical ways to extend your home. This guide compares your options.

    Message us

    Available 24/7

    Message us 7 days a week and a member of our friendly team will get back to you ASAP
    message on Whatsapp desktopMessage on facebookrequest a callback

    Scan to open WhatsApp chat:

    01698 331111

    Call us now

    MON 09:00 – 21:00
    TUE 09:00 – 21:00
    WED 09:00 – 21:00
    THU 09:00 – 21:00
    FRI 09:00 – 21:00
    SAT 09:00 – 21:00
    SUN 09:00 – 21:00

    request a callback

    Scan to start call:

    Get a finance offer

    Home improvement finance

    Your finance options

    • Finance from 0% APR
    • Buy now pay in 2027
    • No deposit finance available
    • low, flexible, monthly payments

    01698 331111

    Call us today

    You can also message us: