The 41Architectural™ system is a residential and Architectural aluminium joinery range that is based on the AllSeasons™ system profile. It offers the same square face design, structural strength and the Altus proprietary connection systems, but without the thermal break.

  • Category
    Aluminium Joinery


  • Square flat faced frame with a 19mm flange, accommodating a flush sash.
  • Fixed glazing, 41mm glazing platform (IGUs up to 30mm).
  • Provision for up to 24mm IGUs in pocketed sashes and 30mm in beaded sashes.
  • A range of mullions and transoms to add strength to cope with higher wind loads.
  • 50mm wide panels for greater strength and height on Hinged and Bi-fold Doors.
  • The two-piece Stacker Door design means you can add multiple panels.
  • The outside sliding door wide track means larger panels can move freely on the track and provides a cleaner surface appearance.
  • Door stiles are designed for Mortise locks sets to improve security.
  • Hinged door panels include torsional stiffening blocks for stronger panels.
  • Optional wide stiles and rails.
  • Standard and heavy-duty coupling bars available.
Nulook™ Windows & Doors
View locations (41)
Get in touch
Visit Website

Projects featuring
41 Architectural™ System

About the

  • Products listed
  • Recent Responsiveness


    Usually responds within
    5 days on weekdays

Nulook™, established close on half a century ago, is a nationwide network of independently owned licensed window and door fabrication businesses. It is the most comprehensive business of its kind operating under one brand in New Zealand.

Nulook™ has grown through development, acquisition, and amalgamation of the Barker, Rolls, and Circle brands, and more recently the addition of a number of conversions from competing brands as they seek to capitalise on and benefit from the Altus product range and fabricator support. The experienced Nulook network takes great pride in the integrity of the service and products it provides to its customers. Quality control systems ensure licensees maintain Nulook’s reputation for excellent service.

Nulook™ offers a range of products specifically suited to New Zealand’s diverse climate and conditions.

Our lead residential joinery systems are manufactured using Altus Window Systems patented connection system, to give you more secure weathertight joinery.