SJ Engineering Limited is a leading provider of Freestanding Roof Edge Protection Guardrail installation services in the UK, offering a versatile, robust, and strong modular handrail system. Our collective freestanding guardrail is designed to provide an effective barrier for flat roofs, capable of withstanding a maximum horizontal load of 300N applied perpendicular to the top rail. This modular handrail system is based on a 48.3mm x 3.5mm thick galvanised tube for real strength and robustness, joined together by a range of specifically designed key clamp moulded fittings and counterweights to create the complete freestanding Roof Edge Protection Guardrail.
Our Roof Protection Systems are suitable for a wide range of applications, including walkways, providing high levels of safety for personnel accessing rooftops, maintenance barriers, partitions, warehouse roofs, office roofs, and skylight protection.
We offer custom cutting of the tube to lengths required on-site to make handrail modifications if needed. Our 150mm kick plate is bolted to the vertical tube with the matched moulded fittings clamping around the tube base to complete the installation if required. The fittings are mechanically fixed with a grub screw to the galvanised tubes.
The benefits, safety, and cost-effectiveness of using our Roof Protection Systems:
- Our roof protection systems provide an effective barrier for flat roofs, ensuring the safety of personnel working at heights.
- The modular design of our handrail system allows for easy installation and modification, reducing installation time and costs.
- The 48.3mm x 3.5mm thick galvanised tube used in our handrail system offers strength, durability, and long-lasting protection against the elements.
- Our freestanding roof edge protection guardrail is designed to withstand a maximum horizontal load of 300N, providing a secure and stable barrier for rooftops and other high-level applications.
- Our roof protection systems are versatile and can be used in a variety of applications, making them a cost-effective solution for a wide range of industries and projects.
- We offer custom cutting of the tube to lengths required on-site, reducing waste and ensuring a precise fit for your specific needs.
- Our fittings are mechanically fixed with grub screws to the galvanised tubes, providing a secure and stable installation that meets industry standards.
We are committed to providing our customers with high-quality, reliable, and cost-effective roof protection systems.
Contact us today to learn more about our products and services and how they can benefit your business.




