Fire and Smoke Dampers

Mellor Tops Maintenance provides fire and smoke damper service and maintenance for building owners and facilities teams. We help you look after the equipment that limits the spread of fire and smoke through ventilation ductwork.

The purpose of fire and smoke dampers is to prevent the spread of fire, smoke, and toxic gases through a building's HVAC system by automatically closing ducts when a fire is detected. Located at fire compartment boundaries, they maintain the integrity of fire-rated walls and floors, safeguarding escape routes, protecting occupants, and minimizing property damage.

Fire dampers are activated by high heat, while smoke dampers are triggered by smoke detection systems, both serving as passive fire protection to contain a fire within its area of origin.

Supporting fire compartmentation

Fire compartmentation means dividing a building into areas designed to restrict the spread of fire. Where ventilation ducts pass through these boundaries, suitable dampers help maintain that protection. Their condition and ability to operate are important parts of the building’s fire safety arrangements.

A service suited to the installed dampers

Our team brings experience of leading smoke vent and smoke damper installations. Service requirements should reflect the damper type, its operating mechanism and the manufacturer’s instructions. Mechanical fire dampers and powered smoke dampers can require different checks, so the work needs to suit the equipment in place.

Planning access and ongoing maintenance

Damper locations and access arrangements can affect how servicing is carried out. Share your asset register, previous maintenance information and any known faults so we can discuss the work your site requires. A planned approach helps facilities teams organise access and address maintenance needs before equipment is called upon in an emergency.

Common customer question

Are fire dampers and smoke dampers the same?

They have related but different functions. Fire dampers help restrict fire spread through ductwork, while smoke dampers are designed to control smoke passage. The installed type determines the appropriate maintenance approach.

Call us on: 01204 393 469

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