Norrsken Joins NBS Source to Streamline Specification for UK Architects

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Poole, UK. February 4th, 2026Norrsken, a UK-based manufacturer of high-performance triple-glazed aluminium-clad timber windows and doors, has partnered with NBS to make its passive house certified products available on NBS Source, the UK’s leading construction product specification platform. 

The partnership gives architects, specifiers and designers free access to detailed technical specifications, CAD files and product data for nine of Norrsken’s most specified products through the NBS Source platform, which is used by more than 5,000 architecture and engineering practices across the UK. 

BIM objects in Revit and IFC formats for all nine products will roll out progressively over the next six weeks, with multiple opening configurations and timber or aluminium-clad variants available for each product type. 


NBS Source allows architects to search, compare and select from more than 26,000 construction products, with direct integration into NBS Chorus specification software and plugins for Revit, ArchiCAD and Vectorworks. Norrsken’s listing includes comprehensive technical data for three passive house certified window ranges and six door ranges, all manufactured to bespoke specifications with U-values as low as 0.64 W/m²K. 

“Architects need reliable partners who understand the technical demands of modern, low-energy building design,” said Alex Alsop, sales director at Norrsken.

“By joining NBS Source, we’re streamlining workflows for architect practices of all sizes and making it easier for specifiers to access the detailed product information they need at the earliest stages of a project. This partnership reinforces our commitment to supporting architects with award-winning service from manufacture through to installation and aftercare.” 


The BIM objects in development reflect Norrsken’s bespoke manufacturing capabilities, with configurations spanning tilt-and-turn windows, large-format sliding doors up to 8,500mm, French doors with side and top lights, and entrance doors in multiple styles.

Each product can be specified in timber or aluminium-clad variants, finished in any RAL colour, and customized with project-specific hardware and options. All objects are authored to NBS standards with CAWS and Uniclass 2015 classifications, ensuring compatibility with standard UK specification workflows. 


Norrsken manufactures premium aluminium-clad timber windows and doors at its production facility operated by Viking Window AS in Estonia, with technical support and installation services headquartered in Poole. The company specializes in passive house projects and low-energy residential builds, offering complete project management from initial survey through installation with single-point accountability throughout. 

ENDS

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