Windows
Sash Windows
LAG sash windows combine heritage charm with modern performance, offering aluminium, uPVC, or wooden frames in customizable finishes, with smooth operation, energy efficiency, and enhanced security.
Windows
Sash Windows
LAG sash windows combine heritage charm with modern performance, offering aluminium, uPVC, or wooden frames in customizable finishes, with smooth operation, energy efficiency, and enhanced security.
1.4W/M2K
U-VALUE
10 YEAR
GUARANTEE
LOW
MAINTENANCE
ENERGY
EFFICIENT
CUSTOMIZABLE
Our sash windows bring timeless appeal with today’s performance. Designed with vertical sliding panels, these windows are perfect for period-style homes or anyone seeking a refined, traditional aesthetic. Our aluminium sash windows offer:
- Smooth glide opening system
- Superior thermal performance
- Enhanced security with integrated locking features
- Low-maintenance, rust-resistant aluminium frames
While preserving the elegance of classic window design, LAG’s sash windows are engineered for modern living — with high-quality glazing, excellent insulation, and options for tilt-in cleaning.
Available in a variety of finishes, colours, and glazing styles, our sash windows can be fully customised to suit your project. Whether you’re restoring a heritage property or adding character to a new build, these windows offer the best of both worlds: heritage charm and high performance.
Aluminium
Opting for a sleeker profile than uPVC and timber counterparts, aluminum sash windows are a popular choice for those seeking unobstructed views of their surroundings. Beyond their aesthetic appeal, these windows boast durability, making them an excellent fit for homes in coastal or high-wind areas.Explore a world of possibilities with our aluminum casement frames, available in a palette of over 200 colors. You have the freedom to customize both the interior and exterior with different hues. Elevate the style further by choosing from various glass effects, such as lead bars, Georgian bars, bevelled designs, or exclusive decorative glass effects meticulously crafted by our team. For a touch of tradition, lead bars in square or diamond-cut shapes are particularly favored for pairing with dark metal window frames.
UPVC
The energy efficiency and customization options are impressive. It’s not just about practicality; it’s about making a statement with style. A-rated for energy efficiency is a solid win, and the fact that you can tailor the look with different finishes and details like Georgian or Victorian bars is a nice touch. It’s like giving homeowners the power to blend functionality with personal aesthetics.
Wooden
Enhance your home with the timeless beauty of natural timber windows, expertly crafted to replicate the elegance of the Victorian and Georgian era. Choose between durable, responsibly-sourced softwood or hardwood options, with each timber sash window individually tailored to your preferred style, color, and finishing touches. Enjoy the seamless operation, modern performance features, and energy efficiency of A-rated wooden sliding sash windows, designed to reduce heating bills and provide a cozy atmosphere. Security is paramount, with shoot-bolt locks and key-locking handles, and compliance with building regulations is ensured with optional toughened glass. Discover cost and energy savings through a personalized consultation with our Anglian designers.