MBS/General/TBT-MBS-007

Ductwork Installation Safety

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Ductwork Installation Safety

Toolbox Talk Record

Ref: TBT-MBS-007  |  Issue: 1  |  Date: March 2026
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What?

  • Ductwork installation involves fitting metal or flexible ducts for heating, ventilation, and air conditioning systems.
  • Duct sections are often bulky and awkward to handle, creating manual handling and fall-from-height risks.
  • Work is frequently carried out at height from scaffolds, MEWPs, or step platforms in ceiling voids.
  • Sharp edges on galvanised steel ductwork cause deep cuts; appropriate gloves are essential.
  • Ductwork fixings require drilling into concrete soffits, generating noise and silica dust.
  • Lifting duct sections overhead by hand increases the risk of musculoskeletal injuries.
  • Fire-rated ductwork must be installed exactly to specification to maintain compartmentation.
  • Flexible duct connections can collapse if not supported, reducing airflow and system performance.
  • Work in ceiling voids involves restricted space, poor lighting, and risk of falling through ceilings.
  • The Work at Height Regulations 2005 and Manual Handling Operations Regulations 1992 both apply.

Why?

Prevent injuriesCuts from sharp metal edges, falls from height, and manual handling injuries are the most common incidents during ductwork installation.
Fire safetyIncorrectly installed fire-rated ductwork compromises building compartmentation, allowing fire and smoke to spread between zones.
Dust exposureDrilling fixings into concrete soffits generates respirable crystalline silica dust, which causes permanent lung disease.
Do Don't
  • Wear cut-resistant gloves when handling galvanised steel duct sections.
  • Use mechanical lifting aids to raise heavy duct sections into position.
  • Ensure safe access at height is in place before starting overhead work.
  • Use on-tool dust extraction when drilling fixings into concrete soffits.
  • Check that fire-rated ductwork matches the specification before installing.
  • Support flexible duct connections properly to prevent collapse or kinking.
  • Inspect scaffolds, platforms, and MEWPs before use in ceiling void areas.
  • Plan the installation sequence to minimise awkward manual handling tasks.
  • Secure duct sections immediately after positioning to prevent them falling.
  • Wear eye protection when cutting, drilling, or working overhead with ductwork.
  • DON'T handle galvanised steel duct without cut-resistant gloves.
  • DON'T lift heavy duct sections overhead manually when mechanical aids exist.
  • DON'T stand on fragile ceiling tiles or unsupported grid systems.
  • DON'T drill into concrete without using dust extraction or water suppression.
  • DON'T install fire-rated ductwork that does not match the approved specification.
  • DON'T leave unsecured duct sections balanced overhead during breaks.
  • DON'T work at height without the correct platform, scaffold, or MEWP.
  • DON'T block fire escape routes with duct sections or packaging materials.
  • DON'T ignore sharp burrs or edges on cut duct; deburr before handling.
  • DON'T assume ceiling voids are safe without checking for hidden hazards first.

See also: HVAC System Installation Safety | Manual Handling Awareness
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