Superior thermal performance and weather resistance
Enhanced performance and reliability for commercial buildings
Exceptional thermal efficiency reduces energy costs
Smooth sliding mechanism with minimal maintenance requirements
Robust aluminium construction ensures long-lasting performance
Customisable sizes to fit any commercial application
Professional installation with full warranty coverage
Our vertical sliding windows are available in a comprehensive range of colours and finishes. Choose from standard RAL colours, anodized finishes, or bespoke powder coating options to perfectly complement your building's architectural design.
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Access our comprehensive technical documentation, installation guides, and product specifications for vertical sliding windows.
Contact Us| *Average U-values | |
| Residential CEN standard (Double Glazed) | 1.3 W/m²K |
| Residential CEN standard (Triple Glazed) | 0.97 W/m²K |
| Commercial CEN standard (Double Glazed) | 1.3 W/m²K |
| Commercial CEN standard (Triple Glazed) | 0.9 W/m²K |
| Security | PAS24 & SBD |
| *All calculations are based on CEN sized windows at 1230mm x 1480mm. |
| Wind load resistance in accordance with DIN EN 12210* /** | up to class C5/B5 |
| Watertightness in accordance with DIN EN 12208** /*** | up to class E900 |
| Air permeability in accordance with DIN EN 12207 ** | up to class 4 |
| Operating forces in accordance with DIN EN 13115 ** | Class 1 |
| Burglar resistance in accordance with DIN V ENV 1627** | up to class 2 |
| * The amount of deflection will depend on the profile | |
| ** Design-specific (see test certificate) | |
| *** Applicable to lift-and-slide series |
| Wind load resistance in accordance with DIN EN 12210* | Up to Class B5 |
| Watertightness in accordance with DIN EN 12208** | Up to Class 9A |
| Air permeability in accordance with DIN EN 12207 | Up to Class 4 |
| Operating forces in accordance with DIN EN 13115 | Class 1 |
| Mechanical loading in accordance with DIN EN 13115 | Class 4 |
| Sound insulation in accordance with DIN EN ISO 140-3** | up to 40 dB |
| * The amount of deflection will depend on the profile | |
| ** Design-specific (see test certificate) |
| Wind load resistance in accordance with DIN EN 12210* | up to class B4/C4 |
| Watertightness in accordance with DIN EN 12208** | up to class 6A/7A |
| Air permeability in accordance with DIN EN 12207 | up to class 2 |
| Mechanical loading in accordance with DIN EN 13115 | Class 4 |
| Long term functionality in accordance with DIN EN 12400 | Class 3 |
| * The amount of deflection will depend on the profile | |
| ** Design-specific (see test certificate) |
| Wind load resistance in accordance with DIN EN 12210* | To Class C5/B5 |
| Watertightness in accordance with DIN EN 12208** /*** | To Class E900 |
| Air permeability in accordance with DIN EN | To Class 4 |
| Operating forces in accordance with DIN EN 13115 | Class 1 |
| Burglar resistance in accordance with DIN V ENV 1627** | To Class 2 |
| * The amount of deflection will depend on the profile | |
| ** Design-specific (see test certificate) | |
| *** Applicable to lift-and-slide series |
| Wind load resistance in accordance with DIN EN 12210* | up to class B3 |
| Watertightness in accordance with DIN EN 12208** | up to class 7A |
| Air permeability in accordance with DIN EN 12207 | up to class 4 |
| Burglar resistance in accordance with DIN V ENV 1627** | up to class 2 |
| Sound insulation in accordance with DIN EN ISO 140-3** | up to 38 dB |
| * The amount of deflection will depend on the profile | |
| ** Design-specific (see test certificate) |
Our experienced design team works closely with architects and contractors to create vertical sliding windows that meet specific project requirements.
Every window system is carefully engineered to deliver optimal performance while maintaining the aesthetic vision of your commercial building project.
LSF Commercial’s certified installation teams ensure your vertical sliding windows are fitted to the highest standards with minimal disruption to your project timeline.
Our comprehensive installation service includes site surveys, project management, and full commissioning to guarantee optimal performance from day one.
Common questions about our commercial vertical sliding window systems and installation services.
Contact UsWe manufacture custom sizes to suit any commercial application, from standard openings to large-scale architectural features.
Advanced thermal break technology and high-performance glazing significantly reduce heat loss and improve building energy ratings.
Minimal maintenance needed - periodic cleaning and annual lubrication of sliding mechanisms ensures optimal long-term performance.
Yes, we offer motorised options with remote control systems for enhanced convenience and accessibility compliance.
We provide comprehensive warranties covering both materials and installation workmanship for complete peace of mind.
Our streamlined five-step process ensures your curtain walling project exceeds expectations every time.
We assess your project requirements, site conditions, and design aspirations to create tailored facade solutions.
Our expert team creates detailed technical drawings and specifications optimized for performance and aesthetics.
State-of-the-art fabrication facilities produce your curtain walling systems to exact specifications and quality standards.
Experienced installers deliver seamless on-site assembly, ensuring perfect alignment and weatherproof performance.
Comprehensive testing and inspection guarantee your curtain walling meets all performance and safety requirements.
We work alongside leading architects, contractors and developers to deliver outstanding commercial projects nationwide. We use only the best aluminium systems from Schüco and fire-resistant glass from Vetrotech from Saint Gobain to manufacture our products.
If you'd like to find out more about working with LSF Commercial as your dedicated aluminium specialist, get in touch today. Whether you're working on a commercial refurbishment project, a new build development, or retail premises overhaul, we can help. Simply enter your details into the contact form and we'll get back to you as quickly as possible. With LSF Commercial as your project lead, you know you're in safe hands.