Experience & Case Studies

Intro

Proven Experience in Dry Riser Systems

We provide specialist dry riser inspection, testing, and remedial works, with experience across a wide range of building types and operating environments.

Our background includes complex and non-standard systems, live and high-risk sites, and projects where professional judgement and safety-led decision making were critical. The examples below highlight typical projects and demonstrate our approach to compliance, safety, and long-term maintainability.

Case Study Highlights

High-Security Aviation Facility – Dry Riser Remedial Works

  • Large-scale replacement of 28 landing valves within a live, high-security airport environment
  • Upgrade from threaded to PN16 flanged valves to improve long-term maintainability
  • Full system testing and compliance achieved under restricted access conditions

Live Hospital Environment – Dry Riser System Modification

  • Support provided to construction contractor during integration of a new building into an existing dry riser ring main
  • Controlled drainage and staged recharging of a large horizontal system
  • Continuous monitoring to ensure fire safety provision was maintained

Remote Heritage Site – Non-Standard Dry Riser Testing

  • Testing of an 8-inch, 250metre dry riser main serving a historic hilltop site
  • Temporary water supply provided using lake abstraction and centrifugal pumping
  • System left charged at the request of the fire brigade due to size and refill time

New-Build Residential Block – Critical Inlet Non-Compliance Identified

  • Unsafe inlet arrangement identified during pre-test inspection
  • Pressure testing refused until compliant inlet and drain arrangement was installed
  • System corrected, tested, and left fully compliant

Air Release Valve Non-Compliance – Resolved Prior to Testing

  • Absence of air release valves identified during inspection
  • Immediate remedial works completed to allow safe filling and pressurisation
  • System tested and commissioned on the same day

Read More

If you would like to explore our full case studies, including detailed breakdowns of complex and non-standard dry riser systems, these are available as a downloadable PDF.

Download the complete document below.

Includes detailed project scope, challenges, solutions, and compliance outcomes.

Safety & Standards

Our Approach to Dry Riser Safety

  • Pre-test inspections carried out prior to pressurisation
  • Works halted where systems are unsafe or non-compliant
  • Compliance with relevant British Standards and guidance
  • Clear communication with clients, fire authorities, and stakeholders
  • Focus on long-term system reliability and maintainability
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