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Window units
Find and specify window units from top manufacturers with NBS Source. Browse 391 products that are ready to use on your projects. Classification Pr_30_59_98.
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Showing 1-36 of 382
Alitherm 400 Aluminium Casement Windows - Thermally Broken Casement Window
Verified 12 days ago
Smart Architectural Aluminium
Aluminium casement windows with a selection of vent designs from Steel look to modern flush.
P33A/T Triple-Glazed Inward Open Alu-Clad Timber / Timber Only Window
Verified 3 days ago
Norrsken Company Ltd
Triple-glazed inward opening window with optional aluminium cladding, suitable for Passive Houses.
P31A/T Triple-Glazed Outward Open Alu-Clad Timber / Timber Only Window
Verified 3 days ago
Norrsken Company Ltd
Triple-glazed outward opening window with aluminium cladding.
Comar 5Pi Therm-L+ - High Performance Thermal Window System
Verified 4 days ago
Bailey Comar
The Comar 5Pi Therm-L+ thermal window system has been designed to provide a high thermal performance solution for residential and commercial buildings.
Steel Heritage Window System - Janisol Arte 66
Verified 5 days ago
Schueco UK Ltd
Slimline steel profile system for highly thermally insulated turn/tilt windows and glazing.
Studio-Linked Rooflights
Verified 5 days ago
The Rooflight Co.
Close-coupled run of Conservation Rooflights®, using linking bar system.
Studio-Designer Conservation Rooflights
Verified 5 days ago
The Rooflight Co.
Close-coupled run of Conservation Rooflights, using multiple casements on one baseplate.
Neo® Rooflight
Verified 5 days ago
The Rooflight Co.
Sleek, flush glazing, frameless rooflight for pitched roof surfaces
Timber Casement and French Casement Windows - Timber Windows
Verified 6 days ago
Westbury Windows & Joinery Ltd
Range of timber wood casement and French casement windows.
Timber Glazed Screens
Verified 6 days ago
Westbury Windows & Joinery Ltd
Timber wood glazed screens.
Timber Bay Window
Verified 6 days ago
Westbury Windows & Joinery Ltd
Range of bespoke timber bay windows.
Timber Box Sash Windows
Verified 6 days ago
Westbury Windows & Joinery Ltd
Timber wood box sash windows.
Timber Spring Sash Windows
Verified 6 days ago
Westbury Windows & Joinery Ltd
Range of timber wood spring sash windows.
Spectus PVC-u Casement Windows (Bevelled/ Chamfered) - PVC-u Chamfered Window
Verified 6 days ago
Epwin Window Systems
A high-performance PVC-U casement window with bevelled or chamfered styling, offering excellent thermal efficiency, security, and design flexibility for residential and commercial use.
Stellar Aluminium Flush Tilt & Turn Window - Tilt and Turn Window
Verified 6 days ago
Epwin Window Systems
A flush aluminium tilt & turn window offering dual-function operation, slim sightlines, top-tier thermal performance, and secure ventilation—ideal for high-rise and modern architectural projects.
PVC-u Vertical Sliding Sash Window - PVC-U Window
Verified 6 days ago
Epwin Window Systems
A traditional-style PVC-U vertical sliding sash window system offering authentic detailing, modern thermal performance, and secure, low-maintenance operation for heritage and new-build projects.
Profile 22 PVC-u Tilt and Turn Window - Tilt And Turn Window
Verified 6 days ago
Epwin Window Systems
A versatile PVC-U tilt & turn window offering secure ventilation, safe internal cleaning, and excellent thermal performance—ideal for high-rise, commercial, and residential applications.
Stellar Fully Flush Aluminium Casement Window - Aluminium Casement Window
Verified 6 days ago
Epwin Window Systems
A fully flush aluminium casement window with slim sightlines, top thermal performance, and modern styling—ideal for residential, commercial, and refurbishment applications.
Spectus PVC-u Tilt & Turn Window - PVC-U Tilt and Turn Window
Verified 6 days ago
Epwin Window Systems
A high-performance PVC-U tilt and turn window system offering contemporary styling, dual inward-opening functionality, and outstanding thermal, acoustic, and security performance for modern buildings.
PVC-u Flush Tilt & Turn Window - PVC-U Tilt And Turn Window
Verified 6 days ago
Epwin Window Systems
Flush PVC-U tilt & turn window offering modern aesthetics, secure ventilation, and easy cleaning. Ideal for high-rise, residential, and commercial applications with excellent thermal performance.
Stellar Aluminium Flush Casement Window - Aluminium Casement Window
Verified 6 days ago
Epwin Window Systems
A flush aluminium casement window offering minimalist aesthetics, enhanced thermal performance, and up to 12% more glass—ideal for modern residential and commercial applications.
Profile 22 PVC-u Chamfered Casement Window - PVC-u Window System
Verified 6 days ago
Epwin Window Systems
Profile 22 Chamfered Casement Windows offer high thermal efficiency, structural strength & security, with double/triple glazing, wide design options & PAS 24 compliance for versatile installations.
Fully Reversible PVC-u Window - Easy Clean Windows - PVC-u Reversible Window System
Verified 6 days ago
Epwin Window Systems
A high-performance PVC-U fully reversible window offering safe cleaning, secure ventilation, and excellent thermal efficiency—ideal for high-rise and hard-to-access residential applications.
Spectus Casement Windows (Ovolo/ Sculptured) - PVC-U Sculptured Window
Verified 6 days ago
Epwin Window Systems
A sculptured PVC-U casement window system with classic ovolo detailing, offering excellent thermal performance, security, and design flexibility for traditional and modern applications.
Profile 22 PVC-u Flush Casement Window - Casement Window
Verified 6 days ago
Epwin Window Systems
Flush casement window system with slim sightlines, PAS 24 security, and U-values as low as 1.2 W/m²K. Ideal for traditional aesthetics with modern thermal and acoustic performance.
PVC-u Sculptured Casement Window - Profile 22 - PVC-u Casement Window
Verified 6 days ago
Epwin Window Systems
A versatile PVC-U casement window system with sculptured styling, excellent thermal performance, and secure design—ideal for residential, commercial, and refurbishment applications.
Raybloc® Sense-X Window
Verified 6 days ago
Raybloc (X-Ray Protection) Ltd
Fully bespoke radiation-protective internal viewing windows with Sense-X® technology for enhanced protection ,sleek and modern design.
Radiation Protective Lead-Lined Internal Window
Verified 6 days ago
Raybloc (X-Ray Protection) Ltd
Lead lined internal screens are available in a range of hardwoods or can be PVC encapsulated to match other fixings within the controlled area and control room. Perfect for CT control rooms.
Conservation Rooflight
Verified 6 days ago
The Rooflight Co.
Original low profile rooflight, combines modern performance with authentic traditional look of a Victorian Rooflight.
58BW SA Student Accommodation Window System - Aluminium Window System
Verified 10 days ago
AluK (GB) Ltd
Aluminium window system with combined louvred panel and open in side hung/tilt & turn student solution.
77IW Window System - Aluminium Windows
Verified 10 days ago
AluK (GB) Ltd
Aluminium high performance window system.
58BW HI ST Heritage (Steel Replacement) Window System - Aluminium Window System
Verified 10 days ago
AluK (GB) Ltd
Aluminium heritage ( steel replacement) window system
58BW HI Window System - Aluminium Window
Verified 10 days ago
AluK (GB) Ltd
Aluminium high insulated window system
77IS Concealed Open In Thermally Broken Commercial Window System
Verified 10 days ago
AluK (GB) Ltd
Aluminium commercial open in concealed casement window.
EB20® Steel Window - Steel window
Verified 12 days ago
Clement Windows Group
Exceptionally slender, high specification, traditional steel window.
EB24® Steel Window - Steel window
Verified 12 days ago
Clement Windows Group
Traditional, slim framed steel window.
EB16® Steel Window
Verified 12 days ago
Clement Windows Group
Traditional, slim framed steel window for sensitive fenestration projects.
Showing 1-36 of 382