What Is a Dry Riser?
A dry riser is a crucial part of a building’s fire safety system. It’s a vertical pipe, usually installed in stairwells or service shafts, designed to help firefighters access water quickly during an emergency. Unlike a wet riser, which is permanently filled with water, a dry riser remains empty until needed. When firefighters arrive at the scene, they connect their water supply to an inlet at ground level and pump water up through the pipe to outlet valves on each floor.
This design allows firefighters to access water at high levels without dragging heavy hoses through stairways or corridors, saving valuable time during a fire.
How a Dry Riser Works
The system is simple but highly effective. At ground level, there is an inlet valve where the fire service connects its hoses. Inside the building, outlets or landing valves are positioned on each floor, allowing water to be delivered wherever it’s needed. When firefighters activate the system, water is pumped under pressure through the pipe to these outlets.
Dry risers are typically installed in buildings over 18 metres tall, where direct hose access from fire engines isn’t practical. They must be kept clear, accessible, and regularly tested to ensure they work properly in an emergency.
Why Dry Risers Are Important
Dry risers are vital for maintaining safety in taller buildings. They allow firefighters to act quickly and efficiently, reducing the spread of fire and protecting occupants. Without a functioning dry riser, firefighting efforts can be delayed, putting both lives and property at greater risk.
UK fire safety regulations require that dry risers are maintained and tested at least once every six months. Regular inspection ensures that valves, inlets, and pipework are free from damage or blockage. Neglecting this maintenance can lead to system failure during a fire, which could have serious consequences.
Keeping these systems in top condition is a key part of building safety compliance, alongside other critical measures such as fire alarm systems and emergency lighting.
What Assured Fire & Security Can Do
At Assured Fire & Security, we provide complete dry riser maintenance and testing services. Our engineers inspect and test every part of the system to make sure it meets British Standards and is ready for use at any time. We carry out pressure tests, visual checks, and servicing of all valves and inlets.
Our wet and dry riser maintenance services cover everything from initial installation to ongoing testing and repair. We also help you maintain full compliance with fire safety regulations and issue certificates after every inspection for your records.
Our work extends beyond riser systems too. Many of our clients combine this service with fire alarm maintenance or CCTV installations to create a complete fire and security solution across their properties.
Conclusion
A dry riser is a simple but vital part of fire safety in taller buildings. It allows firefighters to respond quickly and effectively, minimising damage and keeping people safe. Regular maintenance ensures that your system remains reliable and compliant with UK regulations.
If your building has a dry riser that’s due for testing, contact Assured Fire & Security today to arrange an inspection and keep your fire safety systems in top condition.
