- Obtain a hot works permit before brazing, soldering, or any hot work on pipework.
- Establish exclusion zones during pressure testing and follow the approved test procedure.
- Use mechanical aids and team lifts for heavy items such as boilers and large duct sections.
- Ensure gas work is carried out only by Gas Safe registered engineers.
- Wear correct PPE including gloves and eye protection when brazing or handling refrigerants.
- Coordinate pipework and ductwork routes with electrical trades to avoid damaging hidden cables.
- Follow Legionella control procedures during water system commissioning and flushing.
- Use appropriate access equipment for overhead installations — not improvised platforms.
- Check pipe supports, brackets, and hangers are installed before loading pipework.
- Report any leaks, pressure drops, or concerns during testing to the commissioning engineer.
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- DON'T braze, solder, or carry out hot works without a valid hot works permit.
- DON'T stand near pressurised pipework during testing — stay outside the exclusion zone.
- DON'T manually lift heavy equipment when mechanical aids or additional labour are available.
- DON'T carry out gas installation work unless you hold valid Gas Safe registration.
- DON'T handle refrigerants without F-Gas certification and proper ventilation in place.
- DON'T route pipework without checking for concealed electrical cables in walls and floors.
- DON'T commission water systems without following Legionella prevention procedures.
- DON'T work at height from ladders for prolonged mechanical installation tasks.
- DON'T load pipework onto supports that have not been installed and checked first.
- DON'T ignore leaks during pressure tests — they indicate a joint or component failure.
See also: Pipework Installation Safety | HVAC System Installation Safety
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