Traditional Style with Cutting-Edge Performance
If you’re looking for classic sash windows that combine heritage aesthetics with modern efficiency, our uPVC Vertical Sliding Windows offer the perfect solution. Designed to replicate traditional timber sash windows, our Kömmerling uPVC sash windows provide smooth operation, excellent insulation, and enhanced security, while remaining low-maintenance and highly durable.
Classic design, built for modern homes
Easy to clean with a tilt-in function
Secure multi-point locking system
A-rated energy efficiency with double or triple glazing
Customizable with a wide range of colors & woodgrain finishes
Why Choose Our uPVC Vertical Sliding Windows?
Authentic Traditional Design
Smooth & Durable Sliding Mechanism
High Security
A-Rated Energy Efficiency
Customizable
Low Maintenance uPVC
Key Features & Benefits
Superior
Security
- Reinforced steel core for enhanced strength.
- High-quality balances ensure smooth operation.
- Multi-point locking system & optional anti-jemmy bars for burglary protection.
Exceptional Energy Efficiency
- Double or triple glazing available.
- Brushed seals for superior draught-proofing.
- Low-E glass & warm-edge spacers to reduce heat loss.
Low Maintenance & Easy Cleaning
- Tilt-in sashes allow effortless cleaning from inside your home.
- Weatherproof & UV-resistant – No need for painting or varnishing.
- Resistant to warping, cracking, or rotting.
Customization & Style Options
- Choice of hardware colors: White, Gold, Chrome, Satin Chrome.
- Authentic design features: Astragal bars, sash horns, decorative trims.
- Woodgrain effect finishes: Classic White, Golden Oak, Anthracite Grey, Chartwell Green.
uPVC Vertical Sliding Window Styles
Traditional Vertical Sliding Windows
Modern Vertical Sliding Windows
Bespoke Designs
Glazing & Security Options
Double & Triple Glazing
Maximum energy efficiency.
Low-E Glass
Reflects heat inside your home.
Toughened & Laminated Safety Glass
Reduces noise & enhances security.
Color & Finish Options
Classic White uPVC
A clean, modern look.
Golden Oak & Irish Oak
Warm, natural woodgrain finish.
Chartwell Green & Anthracite Grey
Elegant heritage colors.
Installation & Order Process
Request a Quote
Get a free estimate for your project.
Consultation & Survey
Our experts assess and measure your space.
Manufacturing & Customization
Your bespoke windows are crafted to your specifications.
Professional Installation
Hassle-free fitting by FENSA-certified installers.
Final Inspection & 10-Year Warranty
Ensuring lasting performance & security.
FAQ – Vertical Sliding Windows
Are vertical sliding sash windows secure?
Yes, they feature reinforced frames, anti-jemmy bars, and multi-point locks.
Can I get these windows in a woodgrain finish?
Yes, we offer wood-look finishes like Golden Oak & Irish Oak.
Are these windows easy to clean?
Yes, tilt-in sashes allow easy internal cleaning.
Brochure Download
Discover more details about our uPVC Vertical Sliding Windows, including technical specifications, available finishes, and customization options.