Overview
Rooftop HVAC units, generators and other equipment often require crane lifts. These lifts involve coordination with mechanical contractors, building owners and sometimes street permits.
Lift planning considers unit weight, rigging, radius to the roof location and setup space. Early morning lifts are common in busy areas.
Rigging points and curb adapters should be prepared before the lift.
What to expect, step by step
- Setting the unit.
- Permits and traffic control.
- Confirming unit weights.
- Rigging and lift.
- Planning crane position.
What affects the outcome
- Weights should include rigging.
- Building access may be limited.
- Street permits may be needed.
- Coordination with HVAC contractors.
- Weather.
Local notes for Denver
Wind along the Front Range, especially near the foothills, can affect crane operations, and lifts are postponed when conditions exceed limits. Altitude does not change crane load charts, but weather windows and ground conditions after snowmelt matter.
We take inquiries from Denver, Aurora, Lakewood, Littleton, Arvada, Westminster.
How to prepare your inquiry
- Note the lift height, reach or pour distance needed, measured from where the equipment would set up.
- Note any site rules, such as general contractor requirements, safety orientation, insurance certificates or restricted hours.
- Mention whether you need an operator, rigging, delivery, permits or traffic control, or plan to handle those yourself.
- Include photos of the site and the setup area if you can.
- List the heaviest and largest items or loads, with approximate weights and dimensions, or share the equipment spec sheet.
- Describe the job site: address or nearest cross streets, access route, ground conditions and any overhead lines, trees or structures.
- Share your preferred dates, working hours and how long you expect to need the equipment or service.
Warning signs
- No clear answer about who is responsible for permits, traffic control or site preparation.
- No written quote that lists equipment, minimum charges, travel, overtime and cancellation terms.
- Dismissing wind, weather or ground concerns rather than explaining how they will be managed.
- Quotes that change significantly on the day without a clear reason.
- No questions about loads, ground conditions or site access before quoting.
- Pressure to proceed without a lift plan or site visit on a complex job.
- Unwillingness to provide insurance certificates or operator qualifications when asked.
Questions to ask a provider
- What's the minimum charge?
- Do you work early mornings?
- Who provides rigging?
- Can you handle permits?
- What size crane is needed?
Common questions
- Are permits required?
- Often for street setups.
- How long does the lift take?
- It depends on setup and the number of units.
- Why use a crane for rooftop units?
- Cranes safely place heavy equipment on roofs.
Related topics
- Mobile Crane Rental: How mobile crane rental works, crane types and sizing, site requirements and questions to ask a crane company.
- Construction Lifts: Using cranes for construction projects, scheduling and site coordination, and questions to ask a crane provider.
- Lift Planning: What a crane lift plan covers, when it is needed and questions to ask a crane or rigging provider.