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Window units

Find and specify window units from top manufacturers with NBS Source. Browse 394 products that are ready to use on your projects. Classification Pr_30_59_98.

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Showing 1-36 of 385

BOS
Sponsored
Performance Timber Tilt and Turn Window - The Kruger

Performance Timber Tilt and Turn Window - The Kruger

Verified today

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 today

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 today

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 today

Gowercroft Joinery Limited

Performance timber flush casement with U-value of 0.94 W/m²K.
BOS
Sponsored
Timber Tilt & Turn Window - The Kedleston - Classic Wooden Doors

Timber Tilt & Turn Window - The Kedleston - Classic Wooden Doors

Verified today

Gowercroft Joinery Limited

Secure timber tilt and turn windows with a potential U-value of 1.26 W/m²K.
BOS
Sponsored
Heritage Sash Window - The Winston - Wooden Heritage Windows

Heritage Sash Window - The Winston - Wooden Heritage Windows

Verified today

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.
Sponsored

Steel Heritage Window System - Janisol Arte 2.0 - Heritage Style Window

Verified 1 day ago

Martec Engineering Group Ltd

Slimline steel windows for renovations and modern buildings.
+6
Sponsored
VELFAC In Windows - Composite inward opening windows

VELFAC In Windows - Composite inward opening windows

Verified 2 days ago

Velfac Windows

Composite inward opening windows. Ideal where good cleaning opportunities from inside are required, or where windows should not open onto a pavement. Only with an order for the VELFAC 200 windows.
Sponsored
VELFAC 200 ENERGY Triple Glazed Window Units

VELFAC 200 ENERGY Triple Glazed Window Units

Verified 2 days ago

Velfac Windows

Stylish and sophisticated composite triple-glazed window system. The minimalistic design is a VELFAC characteristic. Windows are made to measure and come in a large range of opening functions.
Sponsored
VELFAC 200 Panels

VELFAC 200 Panels

Verified 2 days ago

Velfac Windows

VELFAC offers panels for a variety of purposes. The panels allow in combination with VELFAC windows the creation of striking uniform facades, or facades with a special visual effect or function.
Sponsored
Rationel AURAPLUS IO® Inward Opening Windows

Rationel AURAPLUS IO® Inward Opening Windows

Verified 2 days ago

Rationel Windows

Composite inward opening windows. Ideal where good cleaning opportunities from inside are required, or where windows should not open onto a pavement.
Sponsored
Rationel AURAPLUS® Windows

Rationel AURAPLUS® Windows

Verified 2 days ago

Rationel Windows

High-quality laminated flush sash timber aluminium-clad windows with a Scandinavian contemporary design.
+2
Sponsored
Rationel FORMAPLUS® Windows

Rationel FORMAPLUS® Windows

Verified 2 days ago

Rationel Windows

High-quality laminated flush sash timber windows with a Scandinavian traditional design.
+2
BOS
Sponsored
Triple Window System with Tilt-Turn Opening Lights and Central Fixed Light

Triple Window System with Tilt-Turn Opening Lights and Central Fixed Light

Verified 2 days ago

NBS

Generic triple window system with tilt-turn opening lights and central fixed light.
Sponsored
Ventrolla | Single Glazed, Double Glazed or Vacuum Glazed New Replacement Vertical Sliding Sash Window

Ventrolla | Single Glazed, Double Glazed or Vacuum Glazed New Replacement Vertical Sliding Sash Window

Verified 2 days ago

Ventrolla Sash Window Specialists

Purpose made single, double or vacuum glazed replacement timber sash windows.
+4
RIBA
Sponsored
Slimline Hinged Unit (SL-HU) - Secondary Glazing Unit

Slimline Hinged Unit (SL-HU) - Secondary Glazing Unit

Verified 2 days ago

Ventrolla Sash Window Specialists

Slimline hinged secondary glazing window unit.
Sponsored
Heavy Duty Hinged Unit (HD-HU) - Secondary Glazing Unit

Heavy Duty Hinged Unit (HD-HU) - Secondary Glazing Unit

Verified 2 days ago

Ventrolla Sash Window Specialists

Single-panel heavy duty hinged secondary glazing unit.
Sponsored
Horizontal Sliding Unit - Three Panel (HS3) - Secondary Glazing Unit

Horizontal Sliding Unit - Three Panel (HS3) - Secondary Glazing Unit

Verified 2 days ago

Ventrolla Sash Window Specialists

Horizontal sliding secondary glazing unit. Three panel configuration. Can be configured for all panels to slide, or with a centre fixed pane.
Sponsored
Double Slimline Hinged Unit (SL-DHU) - Secondary Glazing Unit

Double Slimline Hinged Unit (SL-DHU) - Secondary Glazing Unit

Verified 2 days ago

Ventrolla Sash Window Specialists

Slimline double hinged secondary glazing window unit.
Sponsored
Horizontal Sliding Unit - Four Panel (HS4) - Secondary Glazing Unit

Horizontal Sliding Unit - Four Panel (HS4) - Secondary Glazing Unit

Verified 2 days ago

Ventrolla Sash Window Specialists

Horizontal sliding secondary glazing unit. Four panel configuration.
Sponsored
Ventrolla | Single Glazed, Double Glazed or Vacuum Glazed Renovated Yorkshire Slider Horizontal Sash Window

Ventrolla | Single Glazed, Double Glazed or Vacuum Glazed Renovated Yorkshire Slider Horizontal Sash Window

Verified 2 days ago

Ventrolla Sash Window Specialists

Horizontal Yorkshire slider sash window renovation (timber) performance upgrade. Draught-proofing and heritage double glazing or vacuum glazing.
+4
RIBA
Sponsored
Ventrolla | Single Glazed, Double Glazed or Vacuum Glazed Renovated Venetian Sash Window

Ventrolla | Single Glazed, Double Glazed or Vacuum Glazed Renovated Venetian Sash Window

Verified 2 days ago

Ventrolla Sash Window Specialists

Venetian sash window renovation (timber) performance upgrade. Draught-proofing and heritage double glazing or vacuum glazing.
+4
Sponsored
Horizontal Sliding Unit - Two Panel (HS2) - Secondary Glazing Unit

Horizontal Sliding Unit - Two Panel (HS2) - Secondary Glazing Unit

Verified 2 days ago

Ventrolla Sash Window Specialists

Horizontal sliding secondary glazing unit. Two panel configuration.
Sponsored
Slimline Lift Out Unit (SL-LO) - Secondary Glazing Unit

Slimline Lift Out Unit (SL-LO) - Secondary Glazing Unit

Verified 2 days ago

Ventrolla Sash Window Specialists

Slimline lift out secondary glazing unit window unit.
Sponsored
Ventrolla | Single Glazed, Double Glazed or Vacuum Glazed Renovated Vertical Sliding Sash Window

Ventrolla | Single Glazed, Double Glazed or Vacuum Glazed Renovated Vertical Sliding Sash Window

Verified 2 days ago

Ventrolla Sash Window Specialists

Sash window renovation (timber) performance upgrade. Draught-proofing and heritage double glazing or vacuum glazing.
+4
RIBA
Sponsored
Ventrolla | Single Glazed, Double Glazed or Vacuum Glazed New Replacement Casement Window

Ventrolla | Single Glazed, Double Glazed or Vacuum Glazed New Replacement Casement Window

Verified 2 days ago

Ventrolla Sash Window Specialists

Purpose made single, double or vacuum glazed replacement timber casement windows.
+11
RIBA
Sponsored
Ventrolla | Single Glazed, Double Glazed or Vacuum Glazed New Replacement Vertical Double Box Sliding Sash Window

Ventrolla | Single Glazed, Double Glazed or Vacuum Glazed New Replacement Vertical Double Box Sliding Sash Window

Verified 2 days ago

Ventrolla Sash Window Specialists

Purpose made single, double or vacuum glazed replacement timber double box sash windows.
+4
RIBA
Sponsored
Ventrolla | Single Glazed, Double Glazed or Vacuum Glazed Renovated Vertical Double Box Sliding Sash Window

Ventrolla | Single Glazed, Double Glazed or Vacuum Glazed Renovated Vertical Double Box Sliding Sash Window

Verified 2 days ago

Ventrolla Sash Window Specialists

Double box sash window renovation (timber) performance upgrade. Draught-proofing and heritage double glazing or vacuum glazing.
+4
RIBA
Sponsored
Horiztonal Sliding Unit - Five Panel (HS5) - Secondary Glazing Unit

Horiztonal Sliding Unit - Five Panel (HS5) - Secondary Glazing Unit

Verified 2 days ago

Ventrolla Sash Window Specialists

Horizontal sliding secondary glazing unit. Five panel configuration.
Sponsored
Balanced Vertical Sliding Unit (BVS) - Secondary Glazing Unit

Balanced Vertical Sliding Unit (BVS) - Secondary Glazing Unit

Verified 2 days ago

Ventrolla Sash Window Specialists

Balanced vertical sliding secondary glazing unit with two panels.
Sponsored
Ventrolla | Single Glazed, Double Glazed or Vacuum Glazed New Replacement Yorkshire Slider Horizontal Sash Window

Ventrolla | Single Glazed, Double Glazed or Vacuum Glazed New Replacement Yorkshire Slider Horizontal Sash Window

Verified 2 days ago

Ventrolla Sash Window Specialists

Purpose made single, double or vacuum glazed replacement timber Yorkshire Slider (Horizontal) sash windows.
+4
Sponsored
Ventrolla | Single Glazed, Double Glazed or Vacuum Glazed New Replacement Venetian Sash Window

Ventrolla | Single Glazed, Double Glazed or Vacuum Glazed New Replacement Venetian Sash Window

Verified 2 days ago

Ventrolla Sash Window Specialists

Purpose made single, double or vacuum glazed replacement timber Venetian sash windows.
+4
RIBA
Sponsored
Tilt-In Balanced Vertical Sliding Unit (TBVS) - Secondary Glazing Unit

Tilt-In Balanced Vertical Sliding Unit (TBVS) - Secondary Glazing Unit

Verified 2 days ago

Ventrolla Sash Window Specialists

Tilt-in balanced vertical sliding secondary glazing unit with two panels.
Sponsored
Profile 22 PVC-u Chamfered Casement Window - PVC-u Window System

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

Verified 4 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
Stellar Aluminium Flush Casement Window - Aluminium Casement Window

Stellar Aluminium Flush Casement Window - Aluminium Casement Window

Verified 4 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
Stellar Aluminium Flush Tilt & Turn Window - Tilt and Turn Window

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

Verified 4 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.

Showing 1-36 of 385