By the Numbers
0.5mm
Tolerance Accuracy
U-Value 0.8
Thermal Performance
50,000 sq ft
Leeds Workshop
Our Product Lines
Architectural Profiles for Commercial Builds
Slimline Aluminum Windows
Ultra-thin sightlines and robust thermal breaks for contemporary facades. Custom fabricated to any size and specification.
Heavy-Duty Steel Doors
Secure, fire-rated, and structurally sound for high-traffic commercial environments. Bespoke designs available for demanding applications.
Uncompromising Quality
UK Building Regulations. Structural Wind Load. Factory-Direct Pricing.
Every NN Doors & Windows Limited product is engineered and tested to meet stringent UK building codes and structural performance standards, ensuring compliance and long-term durability for your project.
Submit your project drawings for a direct factory quote. Our technical team is ready to assist with CAD specifications and lead time estimates.