Maximise Light. Minimise Frames. Engineered for Elegance.
At 3S Doors, we supply and install an exclusive range of premium aluminium sliding doors designed for stunning visuals, effortless performance, and robust security. Featuring industry-leading systems from Cortizo and Smart Aluminium, our sliding doors are built to transform your home with ultra-slim sightlines, smooth operation, and customisable finishes.
Whether you’re designing a modern extension, opening up to your garden, or upgrading your home’s energy efficiency, we have the perfect system for you.
Proudly installing sliding doors across Amersham, Stanmore, Harrow, Watford, Pinner, Brent, Gerrards Cross, Chesham, Little Chalfont, and surrounding areas. At 3S Doors, we offer not only the best products, but also exceptional turnaround times and expert support from enquiry to aftercare.
At 3S Doors, we partner with the most reputable and innovative names in the industry to bring you aluminium sliding doors that are beautifully engineered, energy-efficient, and built to last.
Ultra-Slim Framing. Maximum Impact.
A true architectural favourite, the Cor Vision delivers breathtaking glass walls with nearly invisible framing.
Perfect for: luxury extensions, modern renovations, and homes seeking a panoramic aesthetic.
Trusted Performance Meets Modern Style
The Smart Visoglide Plus is a robust and cost-effective solution with customisable options and smooth sliding functionality.
Perfect for: family homes, new builds, and homeowners who want stylish performance at a great value.
Ready to upgrade your space with beautifully engineered aluminium sliding doors?
📞 Call us on 02039165359
📧 Email: info@3sdoorsandlocks.co.uk
📝 Or request your 100% free, no-obligation quote online.
Looking for more information? View our product brochures and installation videos, or book a free design consultation with one of our specialists.
Precision Meets Innovation
This next-generation sliding system merges Cortizo’s renowned frame design with Korniche’s patented enhancements for ease of installation and outstanding finish.
Perfect for: homeowners seeking ultra-efficient fitting without compromising on aesthetics or quality.
🔹 Choose from 200+ RAL colours in matt, gloss, satin, or textured finishes
🔹 Available in double or triple track systems
🔹 Custom handles, glazing options, and thresholds
🔹 Dual-colour (inside-outside) finish available
🔹 Flush thresholds and low-profile frames for seamless transitions
At 3S Doors, we only work with systems we trust — tested in real homes, under real conditions.
By offering doors from Smart, Cortizo, and Korniche-enhanced solutions, we deliver:
Our Partners
