Our services

Pacyfire Engineering LLP provide Fire-Rated Ductwork System solutions

At Pacyfire Engineering LLP, we provide end-to-end Fire-Rated Ductwork System solutions that protect critical HVAC and smoke control ducts in the event of a fire. With extensive experience in industrial plants, commercial buildings, data centres and infrastructure projects, we work as a specialist partner to MEP consultants, HVAC contractors and owners to design, fabricate and install duct systems that maintain their integrity and insulation for the required fire-rating period.

Our team understands the demanding requirements of modern codes and standards for smoke extraction, staircase pressurisation, kitchen exhaust and services ducts. From early design coordination through shop drawings, approvals, installation and final inspection, we ensure every fire-rated duct run is fully compliant, traceable and ready for certification.

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At Pacyfire Engineering, our fire-rated ductwork offering is built around quality engineering and carefully controlled installation practices. We support you from concept to completion, starting with a review of fire strategy drawings, shaft layouts and mechanical schedules. Based on the fire resistance period, system function and routing, we propose suitable tested systems – including fire-rated steel ductwork, board-encased ducts and flexible fire-wrap solutions.

Our fabrication partners produce ducts in accordance with approved drawings, thickness tables and reinforcement requirements. On site, our trained crews install ducts, supports, hangers and fire-rated access doors in line with manufacturer test data, international standards and project specifications. Particular attention is paid to joints, seams, changes in direction and penetrations through walls, floors and shafts, where fire-stopping and sealing are critical.

We coordinate closely with other trades to avoid clashes and ensure that dampers, sensors, cable trays and other services are integrated without compromising the fire rating. Every length of duct is inspected for dimensions, continuity of fire-protection material and correct fixing. We maintain detailed records of batch numbers, DFT / thickness checks and as-built routes so that authorities and consultants have full documentation for approvals.

Beyond new installations, Pacyfire Engineering also undertakes rectification of non-compliant ductwork, upgrades of existing systems and periodic inspection programs. Our goal is simple: to keep your smoke-exhaust, pressurisation and kitchen-exhaust systems operational during a fire, giving occupants a safe escape route and protecting property.

Our Fire-Rated Ductwork Systems services Include

  • Design support and system selection for smoke-extraction, staircase pressurisation, kitchen-exhaust and services ducts to meet required fire resistance ratings.
  • Supply and installation of tested fire-rated duct systems – steel ducts, board-encased ducts and flexible fire-wrap solutions in accordance with UL / BS / EN / IS test data.
  • Fabrication in accordance with approved standards, including sheet-metal thickness, stiffeners, flanges, hangers and supports suitable for fire exposure.
  • Application of external or internal fire protection using certified boards, sprays or wraps, including joint treatment, sealing and finishing.
  • Installation of fire-rated access doors, inspection openings and dampers for cleaning, balancing and maintenance without reducing fire performance.
  • Fire-stopping and sealing at wall and floor penetrations, maintaining compartmentation around ducts, sleeves and multi-service openings.
  • Testing, inspection and documentation, including visual checks, thickness verification, as-built mark-ups and hand-over dossiers for consultants and approving authorities.
  • Repair, upgrading and maintenance of existing ductwork, addressing gaps, damaged insulation, missing seals or undocumented systems to bring them into compliance.

With Pacyfire Engineering LLP as your fire-rated ductwork partner, you gain a single, accountable specialist responsible for the design, installation and long-term performance of these life-safety systems.