Thermo-Tech Premium Windows and Doors
  • Replacement Windows

    Energy Guard Super High-Performance R5-Plus Windows

    Unmatched performance. Maximum energy efficiency.

Nothing can match the beauty and performance of the Energy Guard Triple-Pane Window.

Energy Guard Super High-Performance R5-Plus Windows from Thermo-Tech are the new standard for maximum energy savings, superior performance and beauty. High-quality materials, superb construction and triple-pane, argon filled glass combine to make these some of the most energy efficient windows available today.

With R-values from 5.3 to 6.3, Energy Guard Windows far exceed most commercially available R3.33 windows. That’s great for the pocketbook and the environment–reducing greenhouse gas emissions substantially through optimal insulation and less energy use.

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Window Styles

Select a window style from below to learn more.

Warm-edge spacer system for durability and maximum energy efficiency
100% virgin super-insulating polyvinylchloride
High-performance LoĒ3™ 366 on two glass surfaces
Fusion-welded corners enhance strength and durability
Chambers create insulating air pockets for superb energy efficiency and stability
1/2-inch Argon-filled air spaces between frames for optimal insulation and sound proofing
Three panes of double strength glass provide superior energy efficiency and greatly increase the comfort level of your home
  • Warm-edge spacer system for durability and maximum energy efficiency
  • 100% virgin super-insulating polyvinylchloride
  • High-performance LoĒ3™ 366 on two glass surfaces
  • Fusion-welded corners enhance strength and durability
  • Chambers create insulating air pockets for superb energy efficiency and stability
  • 1/2-inch Argon-filled air spaces between frames for optimal insulation and sound proofing
  • Three panes of double strength glass provide superior energy efficiency and greatly increase the comfort level of your home
    Double Warm-Edge Spacers

    Double Warm-Edge Spacers

    For long-lasting comfort and energy savings, Energy Guard windows incorporate warm-edge spacer systems.

    Energy Guard Triple Insulated Glass


    Triple insulated glass with a triple coating of LoĒ on two glass surfaces

    Get the maximum energy savings, comfort, ultraviolet protection, and the superior sound proofing of Thermo-Tech’s Energy Guard glass. Energy Guard windows incorporate three layers of double-strength glass with LoĒ³ 366 on two glass surfaces, and two half-inch argon gas filled insulated air spaces. This option meets Energy Star’s Most Efficient criteria in the North/Central, South/Central, and Southern Zones, and is available in casements, fixed casements, direct sets, and awnings.

     

    Energy Guard PLUS Triple Insulated Glass


    Triple insulated glass with a double coating of high-performance LoĒ on two glass surfaces

    Energy Guard PLUS triple-pane glass meets Energy Star Most Efficient standards for many tough climates including the Northern zone. Get maximum energy savings, comfort, ultraviolet protection, and sound proofing PLUS the added solar heat-gain necessary to optimize home heating during frigid Northern winter months. Energy Guard PLUS utilizes three layers of double-strength glass with LoĒ² 272 on two glass surfaces, and two half-inch argon gas filled insulated air spaces. Energy Guard PLUS is available in casements, fixed casements, direct sets, and awnings.

    Energy savings are only part of the story.

    Energy Guard Windows also provide maximum comfort all year long – in any climate. In the colder seasons the triple-pane windows create a barrier to cold air while allowing the warmth of the sun into your home. During the air-conditioning season, the sun’s rays are reflected and the cool air is contained in your home – not to mention the comfort of quiet. Energy Guard Windows provide excellent sound proofing from outside noise.

    Energy Guard Windows are also helping to pave the path to Zero Energy Buildings and the Passive House Design that is popular in Europe and gaining popularity in the United States. The goal of these house designs is to decrease energy needs from 60% to 90%. Energy Guard Windows lead the way for performance, function and beauty.

    • Why Thermo-Tech

      Why Thermo-Tech

      Proven energy efficiency.
      Exceptional design flexibility.
      Maintenance-free durability.

      Learn more

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