Thermal insulation
- Environment
- Aluminium-framed windows enhance the comfort of your home by keeping its climate warm and consistent.
- Comfort
- Thoughtful interior design improves residents’ comfort, making the home a more joyful place to live.
Window, door, curtain-wall and skylight systems built to European quality standards with Italian hardware.
Our systems are designed to the highest specifications in line with European quality standards, and tested under the toughest conditions by licensed, accredited international institutions to guarantee you the best quality.
The Leen Al-Diaa range of doors and windows offers diverse solutions for every need. We keep developing the range and enriching our services so we are always by your side — protecting your home with the highest standards of quality and beauty!
Our aluminium systems are designed and developed specifically for today’s construction needs and keep pace with how building evolves, while bringing new, innovative solutions to your home. Explore the systems we offer to suit every requirement of your dream home.
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European casement system with polyamide thermal break, opens to 180°.
For projecting windows, with rubber corners and polyamide technology.
Casement system for commercial buildings with a 45 mm frame.
Elegant sliding system with strong performance and full water, dust and sound insulation.
Standard sliding system with brush seals and glass up to 24 mm.
Sliding system with original hardware and 22 – 24 mm glass.
Enjoy beauty and durability with thermally insulated aluminium doors featuring modern design and high quality. They offer advanced security through modern locking systems and help improve energy efficiency with low maintenance.
100% water- and moisture-resistant and easy to clean
Eco-friendly — free of ammonia, benzene and other pollutants
100% insect-resistant: termites, pests and worms
Resistant to corrosion, bacteria and acids
Simple, elegant and free of clutter — a minimal style that suits refined taste. A wide opening, an ultra-slim frame and better light transmission make any room feel more open. Choose up to three opening panels for practical, comfortable use.
Large sliding doors can be built up to 145 cm wide and 270 cm high.
A double-leaf aluminium swing door with glass — long service life, strong sealing, excellent daylight, enhanced security and good acoustic insulation.
Experience the perfect blend of modern elegance and energy efficiency with our distinctive skylights and curtain walls. Enjoy captivating panoramic views and abundant daylight within a weather-resistant, safe and sustainable building envelope that completes your architectural vision.
Bring the glow of natural light into your spaces with curtain walls, and enjoy a feeling of energy every day!

European aluminium facade system, 50 mm to 220 mm wide, with pressure plates and cover caps.
European aluminium facade system, 50 mm to 190 mm wide, with weather-resistant structural silicone for performance and durability.
We offer a range of skylight options to suit every space, with competitive advantages that add beauty and comfort.
For better harmony between windows and their frames, choose from 3 finish types: wood-grain colours, electrostatic powder-coated frames, and the anodised range.

The look of natural wood with the durability of aluminium.
Frames coloured with electrostatic powder coating in a wide range of RAL colours.
A chemically treated range with a metallic sheen.
Discover our wide colour range — colours shown are approximate examples; ask for the colour catalogue to see the full range.

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Showroom
Al-Ahsa – Al-Mubarraz – Al-Rashidiyah District – next to Al-Taghdhiya Al-Quswa