Northerm Windows & Doors

  • Overview
  • Features

The best we offer in performance, durability and energy efficiency

The only regular production Quad Pane window system produced in North America is offered to you in our 4000 SERIES Casement, Awning and Fixed Window. These windows will give you the highest insulative and structural rating in the industry, not to mention the reduction in sound transmittance and overall comfort. This remarkable performance is the result of constant attention to the smallest detail.

  • The ultimate weather barrier
  • Unsurpassed reliability
  • An attractive appearance for years
  • Pinnacle of performance

These superior quality windows exceed the highest industry standards. Greater comfort, lower energy costs, extraordinary resistance, and a beautifully finished look bring your home the best added value possible.

Available styles

Awning, Fixed

Multichamber design

  • More chambers than any competing product. Provides superior thermal insulation and sound reduction. Guaranteed outstanding resistance to warping and crushing (minimizing the likelihood of seal failure and gas loss).
  • Large 2-inch glazing cavity for Quad panes, 1 3/8 inch for Triple Pane, and 3/4 inch for Dual. One frame does it all.

Exclusive PVC compound

  • Gives the window better resistance to impacts and discolouration

Refreshed style

  • Optional inside and outside design accessories for a neat finish.

Fusion-welded corners

  • Give a more attractive appearance, enhance solidity, and eliminate the need for adhesives and sealants.
  • 100% watertight and airtight.

Dual-layer weatherstripping

  • Provides superior insulation, virtually eliminating air, water, dust, and dirt infiltration. Easily replaceable if needed thanks to the groove.

Optional low-E double, triple glazing, or Quad with argon gas

  • For increased energy efficiency.

Interior glazing bead

  • Designed to withstand extreme conditions.
  • Provides greater security.

Exclusive anchoring system for opening/locking mechanisms

  • Specially designed mounting screws installed through a minimum of two PVC walls for reliable, durable, and secure fastening.
  • Internal reinforcement for ultimate structural performance.

Outstanding performance  

  • Our windows undergo the most stringent compliance testing performed by an independent laboratory. They always earn the highest ratings in national classification tests.

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