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Window units

Find and specify window units from top manufacturers with NBS Source. Browse 395 products that are ready to use on your projects. Classification Pr_30_59_98.

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Showing 1-36 of 386

Sponsored
Spectus PVC-u Tilt & Turn Window - PVC-U Tilt and Turn Window

Spectus PVC-u Tilt & Turn Window - PVC-U Tilt and Turn Window

Verified 2 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.
Sponsored
Profile 22 PVC-u Flush Casement Window - Casement Window

Profile 22 PVC-u Flush Casement Window - Casement Window

Verified 2 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.
+10
Sponsored
Fully Flush Aluminium Casement Window - Aluminium Casement Window

Fully Flush Aluminium Casement Window - Aluminium Casement Window

Verified 2 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.
Sponsored
Stellar Aluminium Flush Casement Window - Aluminium Casement Window

Stellar Aluminium Flush Casement Window - Aluminium Casement Window

Verified 2 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.
Sponsored
PVC-u Flush Tilt & Turn Window - PVC-U Tilt And Turn Window

PVC-u Flush Tilt & Turn Window - PVC-U Tilt And Turn Window

Verified 2 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.
+8
Sponsored
Fully Reversible PVC-u Window - Easy Clean Windows - PVC-u Reversible Window System

Fully Reversible PVC-u Window - Easy Clean Windows - PVC-u Reversible Window System

Verified 2 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.
+6
Sponsored
PVC-u Vertical Sliding Sash Window - PVC-U Window

PVC-u Vertical Sliding Sash Window - PVC-U Window

Verified 2 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.
Sponsored
Spectus PVC-u Casement Windows (Bevelled/ Chamfered) - PVC-u Chamfered Window

Spectus PVC-u Casement Windows (Bevelled/ Chamfered) - PVC-u Chamfered Window

Verified 2 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.
+16
Sponsored
Profile 22 PVC-u Tilt and Turn Window - Tilt And Turn Window

Profile 22 PVC-u Tilt and Turn Window - Tilt And Turn Window

Verified 2 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.
+2
Sponsored
Stellar Aluminium Flush Tilt & Turn Window - Tilt and Turn Window

Stellar Aluminium Flush Tilt & Turn Window - Tilt and Turn Window

Verified 2 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.
Sponsored
PVC-u Sculptured Casement Window - Profile 22  - PVC-u Casement Window

PVC-u Sculptured Casement Window - Profile 22 - PVC-u Casement Window

Verified 2 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.
+15
Sponsored
Spectus Casement Windows (Ovolo/ Sculptured) - PVC-U Sculptured Window

Spectus Casement Windows (Ovolo/ Sculptured) - PVC-U Sculptured Window

Verified 2 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.
+17
Sponsored
Profile 22 PVC-u Chamfered Casement Window - PVC-u Window System

Profile 22 PVC-u Chamfered Casement Window - PVC-u Window System

Verified 2 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.
+15
Sponsored
Secco OS2 Windows - Slimline Heritage Windows

Secco OS2 Windows - Slimline Heritage Windows

Verified 4 days ago

BM Architectural

Slimline heritage windows offering vintage appeal with modern thermal, acoustic and security performance.
+12
Sponsored
Secondary Glazing Fixed C1

Secondary Glazing Fixed C1

Verified 4 days ago

Roseview Windows

Aluminium secondary glazing.
Sponsored
Charisma Rose Sash Window - PVC-U Sash Window

Charisma Rose Sash Window - PVC-U Sash Window

Verified 4 days ago

Roseview Windows

PVC-U sash window.
+2
Sponsored
Heritage Rose Sash Window - Slim Mullion Triple - Sash Window

Heritage Rose Sash Window - Slim Mullion Triple - Sash Window

Verified 4 days ago

Roseview Windows

Heritage PVC-U sash window.
+3
Sponsored
Heritage Rose Sash Window - Slim Mullion Double - Sash Window Slim Mullion

Heritage Rose Sash Window - Slim Mullion Double - Sash Window Slim Mullion

Verified 4 days ago

Roseview Windows

Heritage PVC-U sash window.
+3
Sponsored
Secondary Glazing Horizontal Slider C11 Four Panel

Secondary Glazing Horizontal Slider C11 Four Panel

Verified 4 days ago

Roseview Windows

Aluminium secondary glazing.
Sponsored
Secondary Glazing Double Hinged C7

Secondary Glazing Double Hinged C7

Verified 4 days ago

Roseview Windows

Aluminium secondary glazing.
Sponsored
Heritage Rose Sash Window - Single - Sash Window

Heritage Rose Sash Window - Single - Sash Window

Verified 4 days ago

Roseview Windows

Heritage PVC-U sash window.
+3
Sponsored
Secondary Glazing Horizontal Slider C12 Five Panel

Secondary Glazing Horizontal Slider C12 Five Panel

Verified 4 days ago

Roseview Windows

Aluminium secondary glazing.
Sponsored
Secondary Glazing Lift Out C3

Secondary Glazing Lift Out C3

Verified 4 days ago

Roseview Windows

Aluminium secondary glazing.
Sponsored
Secondary Glazing Single Hinged C5L Open Left

Secondary Glazing Single Hinged C5L Open Left

Verified 4 days ago

Roseview Windows

Aluminium secondary glazing.
Sponsored
Secondary Glazing Standard Vertical Slider C13 - Secondary Glazing

Secondary Glazing Standard Vertical Slider C13 - Secondary Glazing

Verified 4 days ago

Roseview Windows

Aluminium secondary glazing.
Sponsored
Secondary Glazing Horizontal Slider C9 Three Panel

Secondary Glazing Horizontal Slider C9 Three Panel

Verified 4 days ago

Roseview Windows

Aluminium secondary glazing
Sponsored
Secondary Glazing Tilting Vertical Slider C15

Secondary Glazing Tilting Vertical Slider C15

Verified 4 days ago

Roseview Windows

Aluminium secondary glazing.
Sponsored
Secondary Glazing Single Hinged C5R Open Right - Secondary Glazing

Secondary Glazing Single Hinged C5R Open Right - Secondary Glazing

Verified 4 days ago

Roseview Windows

Aluminium secondary glazing.
Sponsored
Secondary Glazing Horizontal Slider C8 Two Panel - Secondary Glazing

Secondary Glazing Horizontal Slider C8 Two Panel - Secondary Glazing

Verified 4 days ago

Roseview Windows

Aluminium secondary glazing.
Sponsored
Kestrel Aluminium 75 mm Polyamide Window System - Aluminium Window System

Kestrel Aluminium 75 mm Polyamide Window System - Aluminium Window System

Verified 5 days ago

Kestrel Aluminium Systems

A window system suitable for all types of buildings.
Sponsored
Kestrel Aluminium 60mm Polyamide Window System - Aluminium window system

Kestrel Aluminium 60mm Polyamide Window System - Aluminium window system

Verified 5 days ago

Kestrel Aluminium Systems

A polyamide window system suitable for all types of buildings.
+4
BOS
Sponsored
Heritage Sash Window - The Winston - Wooden Heritage Windows

Heritage Sash Window - The Winston - Wooden Heritage Windows

Verified 12 days ago

Gowercroft Joinery Limited

Timber Heritage Sash Window with U-value of 1.09 W/m²K. Heritage Sliding Sash Windows for listed properties or those in conservation areas.
BOS
Sponsored
Performance Timber Tilt and Turn Window - The Kruger

Performance Timber Tilt and Turn Window - The Kruger

Verified 12 days ago

Gowercroft Joinery Limited

Performance timber tilt and turn window with u-values as low as 0.94 W/m²K.
BOS
Sponsored
Performance Sliding Sash Window - Tatra - Sustainable Timber Windows

Performance Sliding Sash Window - Tatra - Sustainable Timber Windows

Verified 12 days ago

Gowercroft Joinery Limited

U-value of 0.96 W/m²K - Performance timber sliding sash window.
BOS
Sponsored
Timber Flush Casement Window - The Hardwick - Wooden Windows

Timber Flush Casement Window - The Hardwick - Wooden Windows

Verified 12 days ago

Gowercroft Joinery Limited

Secure timber flush casement windows with a potential U-value of 1.2 W/m²K in double glazing or 0.84 W/m²K in triple glazing.
+2
BOS
Sponsored
Performance Timber Flush Casement Window - The Acadia - Sustainable Timber Windows

Performance Timber Flush Casement Window - The Acadia - Sustainable Timber Windows

Verified 12 days ago

Gowercroft Joinery Limited

Performance timber flush casement with U-value of 0.94 W/m²K.

Showing 1-36 of 386