• Use correct access equipment for all overhead ductwork and pipework installation.
• Handle large duct sections as a team or with mechanical aids — they are awkward and heavy.
• Hold F-Gas certification before handling any refrigerant gases on the project.
• Ensure plant rooms are ventilated and monitored for oxygen depletion from refrigerant leaks.
• Obtain a hot works permit before brazing any pipework on the HVAC system.
• Ensure all electrical connections are carried out by qualified, authorised electricians.
• Follow commissioning procedures for first-time energisation of fans and compressors.
• Wear hearing protection during ductwork fabrication and fixing in enclosed spaces.
• Coordinate duct and pipe routes with other trades before starting installation.
• Inspect all lifting equipment and fixings before loading ductwork at height.

• DON'T install overhead ductwork from ladders or improvised working platforms.
• DON'T carry large duct sections alone — they require team handling or mechanical aids.
• DON'T handle refrigerants without valid F-Gas certification and the correct equipment.
• DON'T work in unventilated plant rooms where refrigerant leaks could displace oxygen.
• DON'T braze pipework without a hot works permit and fire prevention measures in place.
• DON'T make electrical connections unless you are a qualified, authorised electrician.
• DON'T energise HVAC equipment without completing pre-commissioning checks and procedures.
• DON'T work without hearing protection in enclosed spaces with fabrication noise.
• DON'T install ducts or pipes without coordinating routes with other building services.
• DON'T suspend ductwork from fixings that have not been checked for adequate capacity.

See also: Mechanical Building Services Safety | Pipework Installation Safety