Our Twinsulator Series offer extreme strength, and state of the art thermal performance. Designed for use in any weather condition, Twinsulator windows are engineered for a lifetime of worry free operation and performance. Available in Double Hung, Single Hung, Slider, Picture and Casement styles, Twinsulator windows offer just the right style for any type of home or light commercial project.

Twinsulator Windows offer homeowners the very best in aluminum window construction. Designed for energy efficiency, extreme weather protection and thermal performance – Twinsulator is the only choice for many homeowners looking for quality and value.

Twinsulator windows offer homeowners the following benefits:

  • Condensation Resistance
  • High Performance in Extreme Weather
  • Heavy duty aluminum frame and sash for a strong and durable window system
  • Lower Heating and Cooling Costs
  • Years of Worry Free Window Operation
  • No Hassle, Lifetime Limited Warranty

Twinsulator Series Windows are also designed for the following light commercial applications:

  • Multi-Family Projects
  • Military / Government Buildings
  • Schools / Education K-12
  • University Buildings
  • Hotels / Motels
  • Office Buildings
  • Industrial Warehouse Spaces
  • Public Housing

Value Beyond Your Expectations.

Not only are Twinsulator Windows engineered to perform for a lifetime, but your new Twinsulator Windows are also certified by the following third party verifiers for efficiency, safety and performance.

Take a Break From Mother Nature’s Extremes with ThermaProtect

For maximum insulation, our exclusive ThermaProtect insulation barrier offers the very best in thermal protection from the elements. On its own, aluminum is known as a highly conductive material allowing energy to flow freely through the metal. But because of its intrinsic strength and durability, aluminum is the material of choice for building applications all over the world. Take that inherent strength and combine it with a technologically advanced application of a unique thermal barrier and you have the perfect design for window construction.

In order the negate the flow of heat or cold through aluminum, we have designed the ThermaProtect insulation barrier that improves the window’s performance while allowing homeowners to take advantage of the long term durability of their new windows.

Enjoy a Lifetime Limited, No Hassle Warranty with Your Twinsulator Purchase

We all know that a warranty is only as good as the company behind it. The Twinsulator Window Series is backed by an industry leading, Top 100 Window & Door Manufacturer. All of us at NT Window pride ourselves on offering the very best in home improvement products and unparalleled customer service.

DOUBLE HUNG FEATURES

• ThermaProtectTM insulation barrier throughout the frame and sash for the very best in thermal protection from the elements.
• Powder coated aluminum extrusions
• 3/4″ dual glaze Cardinal LowE3 366 double strength glass
• Warm edge Super Spacer® for increased efficiency
• SafetyTilt latch for added peace of mind
• Dual layers of FinSil weatherstipping for maximum protection and fortification
• Integral weep system for improved drainage away from the home
• Both sashes tilt In for easy cleaning
• Quick tilt constant force balance
• Strong, durable and easy to use full screen – standard

Additional Options:
• Double Cardinal LowE3 366
• Laminated .030 Glass
• Tinted Glass
• New construction nailing fin

Single Hung Features

• ThermaProtectTM insulation barrier throughout the frame and sash for the very best in thermal protection from the elements.
• Powder coated aluminum extrusions
• 3/4″ dual glaze Cardinal LowE3 366 double strength glass
• Warm edge Super Spacer® for increased efficiency
• Composite sweep lock for added strength
• Secondary spring latch for added peace of mind
• Four layers of weatherstripping protection – Dual FinSil & Dual Q-Lon for maximum fortification
• Bottom sash tilts in for easy cleaning
• Quick tilt constant force balance
• Durable and easy to use half screen – standard

Additional Options:
• Double Cardinal LowE3 366
• Laminated .030 Glass
• Tinted Glass
• New construction nailing fin

Sliding Window Features

• ThermaProtectTM insulation barrier throughout the frame and sash for the very best in thermal protection from the elements.
• Powder coated aluminum extrusions
• 3/4″ dual glaze Cardinal LowE3 366 double strength glass
• Warm edge Super Spacer® for increased efficiency
• Dual layers of weatherstripping protection – Dual FinSil for maximum fortification
• Integral weep system for improved drainage away from the home

Additional Options:
• Double Cardinal LowE3 366 • Laminated .030 Glass
• Tinted Glass
• New construction nailing fin

Picture Window Features

• ThermaProtectTM insulation barrier for the very best in thermal protection from the elements.
• Powder coated aluminum extrusions
• 3/4″ dual glaze Cardinal LowE3 366 double strength glass
• Warm edge Super Spacer® for increased efficiency
• Integral weep system for improved drainage away from the home

Additional Options:
• Double Cardinal LowE3 366 • Laminated .030 Glass
• Tinted Glass
• New construction nailing fin