Our Products
Sectional Overhead Doors
T40 Sectional Overhead Doors

Mercian Doors – Solid Insulated Sectional Overhead Doors
Mercian Doors solid insulated sectional overhead doors, provide a durable and energy-efficient solution for various industrial and commercial applications.
Key Benefits:
- Reliable & Repetitive Operation – Ideal for facilities requiring consistent door use.
- Enhanced Thermal Efficiency – Seals at the soffit, cill, and panel interfaces minimize heat loss.
- Versatile Application – Available in multiple configurations to suit diverse building requirements.
- Customisable Aesthetics – Corporate colour schemes can be incorporated to match branding.
- Flexible Operation – Choose between manual or electric operation.
Maximum Opening Size: 8000mm wide x 6250mm high
Get in touch to discuss the best solution for your facility’s needs
A1 Glazed Overhead Doors

The Mercian glazed overhead door offers a stylish and practical solution for facilities needing natural light, visibility, and energy efficiency.
Key Benefits:
- Natural Light & Visibility – Provides an energy-efficient way to enhance indoor lighting while maintaining visibility.
- Aesthetic Flexibility – Can be customized with infill panels and colour schemes to suit your design preferences.
- Durable Construction – Built with stiffened extruded aluminium sections for superior strength and longevity.
- Weatherproof – Features water-tight seals for both single and double-glazed units, ensuring reliable performance in various conditions.
- Additional Features – Can accommodate personnel doors and ventilation units for added functionality.
Maximum Opening Size: 7000mm wide x 6250mm high
Available in manual or electric operation.
Reach out today to discuss how a Mercian glazed overhead door can elevate the functionality and aesthetics of your space.
Service Packages
Whether your doors are an original Mercian door or came from an alternative supplier, we can offer a range of planned preventative maintenance contracts tailored to the needs of your business.
Arrange a consultation
Mercian can organise a personal, local and rapid response to all emergency door breakdowns for all products in any location.
Call us on 0121 544 6124 or get in touch online.