Thermo-Tech Premium Windows and Doors
  • Replacement Windows

    Energy Guard Super High-Performance Windows

    Unmatched performance. Maximum energy efficiency.

For maximum energy savings and optimal sun protection, step up to Energy Guard triple-pane insulated glass.

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.

View Performance Data

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
Select from Energy Guard, Energy Guard PLUS or Energy Guard Northern Excellence
Fusion-welded corners enhance strength and durability
Chambers create insulating air pockets for superb energy efficiency and stability
Two air spaces of insulating argon gas
Three panes of double-strength glass provides strength, 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
  • Select from Energy Guard, Energy Guard PLUS or Energy Guard Northern Excellence
  • Fusion-welded corners enhance strength and durability
  • Chambers create insulating air pockets for superb energy efficiency and stability
  • Two air spaces of insulating argon gas
  • Three panes of double-strength glass provides strength, superior energy efficiency, and greatly increase the comfort level of your home
    Energy Guard PLUS Triple Insulated Glass

    Energy Guard PLUS Triple Insulated Glass

    Triple insulated glass with high-performance LoĒ2™ 272/Argon on two glass surfaces

    Overall glass thickness may vary by product type.
    Energy Guard Triple Insulated Glass

    Energy Guard Triple Insulated Glass

    Triple insulated glass with high-performance LoĒ3™ 366/Argon on two glass surfaces

    Overall glass thickness may vary by product type.
    Northern Excellence HSHG Triple Insulated Glass

    Northern Excellence HSHG Triple Insulated Glass

    Triple insulated glass with high-performance LoĒ™ 180/Argon on two glass surfaces

    Overall glass thickness may vary by product type.

     

    Double Warm-Edge Spacers

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

    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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