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Trusted Security Shutter Solutions in Ampthill
Sim Flex has been a trusted name in the UK shutter and grille industry for over three decades, delivering custom-built security solutions tailored to diverse commercial needs. Our product range includes roller shutters, sliding/folding shutters, collapsible gates, and fire shutters, designed to meet exact specifications while maintaining aesthetic appeal. With a commitment to quality and timely delivery, most standard orders are manufactured within 10 days and delivered nationwide within 2-3 weeks. Our team of experienced engineers provides full installation services across the UK, ensuring seamless integration into retail spaces, airports, hospitals, and other public environments. Our innovative designs eliminate the need for floor tracks or mullions, creating unobstructed workable areas while maintaining robust security.

All products comply with insurance requirements and carry a 12-month warranty, reflecting our dedication to reliability and customer satisfaction. From traditional steel shutters to advanced aluminium systems, we offer 12 distinct models to suit various architectural challenges. Our CE-marked fire shutters meet BS EN 16034 standards, providing certified protection for timber and masonry structures. Operating from Ampthill, Bedfordshire, we combine technical expertise with practical solutions to address security needs in shopping centres, motorway service areas, educational institutions, and beyond. This enduring commitment to quality and innovation has established Sim Flex as a leading supplier of security closures across the United Kingdom.
Services
Roller Shutters Sliding/Folding Shutters Collapsible Gates Fire Shutters Glazed Rolling Doors
Highlights and features
  • We have over 30 years' experience in UK shutter manufacturing
  • Our products are custom-built to exact specifications
  • Nationwide installation service with own qualified engineers
  • Standard orders delivered within 2-3 weeks
  • CE-marked fire shutters compliant with BS EN 16034 standards
Services
Roller Shutters
Our comprehensive range of steel and aluminium roller shutters provides robust security for commercial premises. Available in solid, perforated, or glazed designs, these systems offer protection while maintaining aesthetic appeal. Custom-built to exact dimensions with fire-rated options up to 4-hour resistance.
Sliding/Folding Shutters
Innovative sliding and folding shutter systems enable secure space division without obstructing sightlines. These aluminium grilles operate without floor tracks, creating unobstructed areas in retail environments and public spaces. Twelve model variations accommodate diverse architectural requirements.
Collapsible Gates
High-security collapsible gates manufactured from premium-grade steel provide transparent protection for retail frontages. Designed to meet insurance standards, these lattice-pattern systems maintain visibility while preventing unauthorised access. Ideal for retrofit applications requiring minimal structural modification.
Fire Shutters
CE-marked fire shutters compliant with BS EN 16034 standards offer critical protection in commercial buildings. Available in single and three-phase configurations, these steel systems provide 1-4 hour fire resistance with integrated audio-visual warning systems for safe operation.
Questions
What types of security shutters do you manufacture?
We produce roller shutters, sliding/folding shutters, collapsible gates, and fire-rated shutters in steel and aluminium. Each system is available in multiple configurations to suit different security and design requirements.
How quickly can you deliver and install shutters?
Standard orders typically take 2-3 weeks from approval to delivery. Our nationwide installation team can complete fitting at your premises within this timeframe, depending on location and access requirements.
Are your fire shutters compliant with UK safety standards?
Yes, all our fire shutters are CE-marked to BS EN 16034 standards and tested for fire resistance up to 4 hours. They include safety features like audio-visual warnings for secure operation.
Can you install shutters in existing buildings?
Our systems are designed for both new constructions and retrofit applications. Many installations require minimal preparatory work, particularly our trackless sliding shutter systems that adapt to existing structures.
What warranty do you offer on your products?
All Sim Flex products come with a comprehensive 12-month warranty covering manufacturing defects and operational performance, reflecting our confidence in the durability and reliability of our security solutions.