Northerm Windows & Doors

  • Overview
  • Features

The choice of homeowners and builders who are looking for quality and durability

This is the industry standard. Our 3800 series is available in dual or triple glazed, with brick-molding available in our standard coating colours. In all weather conditions and over the years, these windows give you the best protection and the greatest comfort a window can provide. This remarkable performance is the result of our constant attention to the smallest detail.

  • The ultimate weather barrier
  • Unsurpassed reliability
  • An attractive appearance for years
  • Renovation window design

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, Casement, Fixed

Multi chamber 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).
  • 3 ¼" overall frame size, slim design with equal lite fixed frame options.

Exclusive PVC compound

  • Gives the window better resistance to impacts and discolouration.

Royal Frame style

  • Optional inside and outside design accessories for a neat finish.
  • Flush-faced interior and exterior 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 EPDM weather-stripping

  • Superior insulation, EPDM,  virtually eliminating air, water, dust, and dirt infiltration. Easily replaceable if needed.

Optional low-E double or triple glazing 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.   

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.

See more products