Crane for a rooftop HVAC unit in Gainesville

Most rooftop unit swaps around Gainesville go on a 28 to 40 ton boom truck in one morning. Taller apartment and campus buildings need a bigger crane and more lead time.

Rooftop units and mechanical sets Published Updated

Truck crane on outriggers with its boom over a building site, set up for a rooftop pick

How much does a crane cost to set a rooftop HVAC unit in Gainesville?

A single rooftop unit on a one or two story building usually costs $720 to $1,760 with a 28-ton boom truck, depending on the company's minimum. Units on 5 to 9 story buildings often need a 60 to 150 ton crane at $265 to $530 an hour. Set two or three units the same morning and the minimum covers all of them.

  • The minimum charge, 4 to 8 hours on public bids, decides most of the price on a one-unit swap.
  • Reach matters as much as weight: a unit 70 feet back over a building can need a crane three times the size.
  • On the UF campus, UF issues the permits and outrigger stakes need a UF dig permit.
  • A crane on a Gainesville street needs a Public Works obstruction permit, about four weeks ahead.

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Which crane does a Gainesville rooftop unit need?

Start with two numbers: the unit’s operating weight and how far the roof curb sits from the closest spot a truck can set up. With both, an operator can pick the machine from a load chart in a few minutes.

For a strip center, a dental office or a one-story school wing, a 28 to 40 ton boom truck handles most packaged units. It parks on the lot, swings the old unit down to a trailer and sets the new one, usually before lunch.

The apartment buildings going up around Gainesville are a different job. Alachua County permitted 2,629 units in buildings of five or more in 2025 alone, and many are 5 to 9 stories. A condenser rack or a large unit on one of those roofs, set from a street 60 or 80 feet away, can need a 60 to 150 ton hydraulic crane.

Mobile crane standing up precast concrete wall panels for a three-storey building, the same kind of pick behind Gainesville's new mid-rise apartments
Boom trucks do most low-rise lifts in the county, from framing packs to mechanical gear.

What a swap costs here

On the November 2025 Tennessee Tech bid, a 28-ton boom truck ran $180 to $220 an hour, and the minimums were 4 to 8 hours. So one small unit costs about $720 at the low end and $1,760 at the high end, whether the pick takes 40 minutes or three hours.

The bigger cranes bid at $265 to $310 an hour for 60 tons and $375 to $530 for 120 to 150 tons, and two bidders added a counterweight haul of $1,000 to $2,000. A full day for a large unit on a mid-rise roof can reach $4,000 to $5,000.

Three ways to cut the bill:

  • Stack the units. Three units in one visit cost about the same as one.
  • Have the curb ready. Adapter curbs, disconnects and the electrician on site before the crane arrives keep the clock short.
  • Clear the parking spot. Moving cars and dumpsters while the crane waits is billed time.

Permits for Gainesville and the UF campus

If the crane sets outriggers on a city street or sidewalk, Gainesville Public Works needs an obstruction of right of way permit. The city lists 14 business days for review and 7 more when a crane is in the right of way, plus a kick-off meeting and a final inspection. Plan about four weeks.

On campus, the University of Florida runs its own building permits through its Building Codes Enforcement office, and contractors register on its portal. Anything that goes into the ground, including outrigger stakes, needs a UF dig permit, which takes 2 to 3 business days.

Power lines and lift day

Many older Gainesville neighborhoods have overhead lines along the back lot line, right where a rooftop unit sits. OSHA requires the crane to stay at least 20 feet from lines up to 350 kV unless the utility de-energizes or insulates them. Mention any lines near the roof in the form so the operator can plan the setup.

Common questions

How heavy is a rooftop HVAC unit?

It depends on the tonnage. A 3 to 5 ton packaged unit is often in the 450 to 800 pound range, and a 10 to 25 ton unit can run from about 1,200 to more than 3,000 pounds. The submittal sheet or nameplate gives the real number, so send that if you have it.

Can one crane visit set the old unit down and the new one up?

Yes, and that is the usual plan. The crew disconnects the old unit, the crane lowers it to a trailer, then lifts the new one onto the curb. Both picks fit inside one minimum if the electrician and the mechanical crew are ready.

Do I need a permit for a rooftop unit lift in Gainesville?

The equipment swap itself usually needs a mechanical permit. The crane needs a separate Public Works permit only if it sets up in the city right of way, such as a street or sidewalk. On campus, UF handles permits.

Where these facts come from

  1. Tennessee Tech University, Crane/Boom Truck bid tabulation, Nov 18, 2025
  2. Carrier, WeatherMaker 50FC technical specifications
  3. City of Gainesville Public Works, right of way permitting
  4. UF Environmental Health and Safety, Building Codes Enforcement
  5. UF Facilities Services, dig permits
  6. OSHA 29 CFR 1926.1408, power line safety

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