Swapping a multi-ton packaged rooftop unit is one of the most demanding operations in commercial HVAC work. It combines crane operations, roof protection, electrical and gas coordination, and tight urban logistics into a single day of work.
What a Safe Lift Looks Like
- Pre-Lift Engineering: Every lift starts with verified unit weights, certified rigging, and a crane plan matched to site conditions.
- Site Control: Exclusion zones, spotters, and coordinated communication keep building occupants and crews safe.
- Roof Protection: Curb adapters and load paths are planned so the building envelope is never compromised.
- Commissioning: After the set, every unit is leak-tested, wired, and verified under load before handoff.
Cutting corners on rigging is never worth the risk. Work with a mechanical contractor whose crews plan every lift like the stakes are high, because they are.