Siphonic Health Check

Why Compliance with BS 8490:2025 Matters

The updated BS 8490:2025 standards set a rigorous benchmark for the design and maintenance of siphonic systems. At NSS, our specialist engineers don’t just clear gutters; we ensure your system meets these critical safety and performance requirements through:

• Siphonic Health Check: Ensuring the total head losses are correctly managed so the system achieves full siphonic action.
• Specialist Baffle Maintenance: Protecting the air-induction baffles to prevent “gulping” or system failure.
• Predictive Drone Surveys: Utilizing high-resolution thermography to identify “cold spots” and potential ingress before they become visible leaks.

The NSS Advantage: Self-Delivery Without Compromise

Most facilities management companies act as a management layer, subcontracting specialist work to third parties. NSS is different. We provide a “single point of contact” through our direct-delivery model:

• Directly Employed Experts: Our IRATA-trained abseilers and certified engineers are internal employees, ensuring consistent safety standards and accountability.
• Our Own Access Fleet: We own one of the UK’s most extensive fleets of truck-mounted platforms (20m to 70m), ensuring we have priority access to equipment during emergencies when hire firms are sold out.
• 24/7/365 Emergency Response: We provide a rapid-response capability for critical infrastructure, including aviation hubs like Heathrow and major retail portfolios.

Take the Next Step in Asset Protection

Don’t wait for a leak to identify a failure. Use our Siphonic Health Check above to identify your risk level, or contact our technical team to schedule a professional BS 8490:2025 compliance audit.