Setting rooftop units in Sioux Falls, winter included
Most rooftop units in Sioux Falls go up with a boom truck in a morning. Apartment roofs, long reaches and January wind are what push a job onto a bigger crane.
What size crane sets a rooftop unit in Sioux Falls?
A 26 to 45 ton boom truck handles most units on one and two story shops, offices and schools when it can park near the building. Units on four and five story apartment buildings, or set from a street far from the curb, usually need 60 tons or more. The unit weight and the reach from the outriggers to the curb decide it.
- Boom trucks from 26 to 45 tons cover most low-rise rooftop units.
- Published rates run $165 to $300 an hour with a 4 to 6 hour minimum.
- Winter lifts work on frozen ground, but wind and short days limit them.
- Cranes sitting in a city street need a right-of-way permit from City Engineering.
Two numbers settle the machine
Get the unit’s operating weight from the nameplate or the submittal, and measure from the closest spot a crane can park to the roof curb. With those two, the operator reads a load chart and names the machine on the first call.
A one-story strip mall on 41st Street or a school wing with parking next to it is a boom truck job. A 26 to 45 ton truck sets up on the lot, swings the old unit down and the new one up, and is often done before lunch.
Apartment roofs need more reach
The Sioux Falls metro permitted 1,177 units in apartment buildings of five or more units from January through September 2026, more than in all of 2025. Many of those buildings are four or five stories with parking on one side. A large unit near the far edge of that roof can be 70 or 80 feet from the crane, and capacity falls fast at that reach, so 60 tons or more is common.
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Rough costs on published rates
| Job | Machine | Rough cost |
|---|---|---|
| Condenser on a house or small shop | 26-ton boom truck, 4 hours | $660 |
| Unit on a two-story office | 40 to 45-ton boom truck, 4 hours | $820 |
| Large unit on a five-story roof | 60-ton boom truck, 6 hours | $1,800 |
All figures are before the fuel surcharge. Grouping two or three units into one visit spreads the minimum across them.
Winter, wind and ice
Frozen ground gives outriggers a solid base, which makes winter a workable season for rooftop lifts. The limits are wind, ice on the load and short daylight. Gusts across open ground can stop a lift even on a clear day, so operators often schedule rooftop picks for calmer mornings and keep a backup date.
Streets, axle limits and the airport
City code caps loads on Sioux Falls streets at 20,000 pounds per axle and 34,000 pounds on a tandem, so the bigger cranes travel under permit. If the crane has to set up in a street or across a sidewalk, ask City Engineering about a right-of-way permit before booking.
Sioux Falls Regional Airport sits on the north side of town. Under 14 CFR 77.9, a crane that rises above certain slopes from a public runway needs notice to the FAA first. Overhead lines matter too: OSHA keeps the boom at least 20 feet from lines up to 350 kV unless the utility de-energizes them.
Common questions
How much does a crane cost for a rooftop unit in Sioux Falls?
For a low-rise building, a 26-ton boom truck at $165 an hour for its 4-hour minimum is about $660 before fuel. A larger unit on a mid-rise roof with a 60-ton boom truck runs about $1,800 for the 6-hour minimum.
Can rooftop units be set in the winter?
Yes, and many are, since a failed unit cannot wait for spring. Operators watch gusts and ice, keep the load tagged with lines, and often start late morning once it warms a little.
Does a crane near the airport need FAA notice?
It can. Sioux Falls Regional Airport is on the north side of the city, and federal rules require notice for cranes above certain heights near a public runway. Mention the address and the boom height when you send the job.
Sources for this guide
- U.S. Census Bureau, Building Permits Survey
- City of Sioux Falls, Engineering
- FAA, 14 CFR 77.9, construction or alteration requiring notice
- OSHA 29 CFR 1926.1408, power line safety
- Central Maine Crane, published boom truck rates, 2026
Price this job with a local operator
Rough numbers are fine to start.
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