Commercial HVAC cost per ton typically ranges from $3,500 to $7,500 installed for a standard rooftop unit replacement, with an average near $5,500 per ton. Price varies with system type, capacity, efficiency, ductwork, crane access, controls, and local labor rates.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Installed commercial HVAC | $3,500/ton | $5,500/ton | $7,500/ton | Standard rooftop replacement |
| 5-ton packaged unit | $17,500 | $27,500 | $37,500 | Equipment and typical installation |
| New system with added work | $5,000/ton | $8,000/ton | $12,000/ton | Duct, electrical, or control upgrades |
Commercial rooftop HVAC installation price per ton
For a straightforward replacement using a standard-efficiency packaged rooftop unit, commercial buyers commonly pay $3,500-$7,500 per ton. A 10-ton system therefore runs about $35,000-$75,000 installed; larger projects may receive lower per-ton pricing when equipment and crew time scale efficiently.
Premium efficiency, variable-speed components, specialty ventilation, and difficult roof access can move a project above $7,500 per ton. A small system may cost more per ton than a large one because mobilization, controls, and crane charges are spread across fewer tons. Assumptions: U.S. average labor, standard rooftop access, replacement of similar capacity, and no major duct reconstruction.
A practical planning range is $3,500-$7,500 per ton for a typical commercial rooftop replacement.
What equipment, labor, and crane work add to the quote
Equipment is only part of the installed price. The quote may include removal of the old unit, curb adaptation, electrical connections, startup, permits, and balancing. Compare estimates by checking whether each includes these items rather than comparing equipment prices alone.
| Quote component | Typical range | Pricing basis | What changes it |
|---|---|---|---|
| Packaged HVAC equipment | $1,800-$4,000 per ton | Capacity and efficiency | Brand, options, lead time |
| Installation labor | $1,000-$2,500 per ton | Hours and crew size | Roof access, wiring, tie-ins |
| Crane and rigging | $1,000-$5,000 | Per lift or mobilization | Reach, street access, permits |
| Removal and disposal | $500-$2,000 | Per unit | Unit size and refrigerant handling |
| Controls, permits, and startup | $500-$4,000 | Per project | Code needs and controls scope |
Costs overlap in some contractor estimates, so these line items should not be added mechanically to the per-ton range. Commercial HVAC labor commonly bills at roughly $90-$175 per hour, with higher rates for controls specialists or emergency work.
Ask for equipment, labor, crane, disposal, and controls to be shown separately.
How tonnage, efficiency, and duct condition shift pricing
Capacity is a major driver, but tonnage should follow a load calculation, not a rule of thumb. Commercial systems often serve varied occupancy and equipment loads; oversizing can increase first cost and cause poor humidity control. A 5-ton unit may cost $4,000-$8,000 per ton, while a multi-unit 20-ton project may land closer to $3,500-$7,000 per ton when access and scope are straightforward.
Efficiency and system type also matter. Higher-efficiency rooftop equipment can add roughly 10%-25% over a basic model. Replacing a like-for-like packaged unit is generally less expensive than converting to split systems, adding dedicated outdoor-air equipment, or changing refrigerant piping. If more than 20-30 feet of duct or piping must be replaced, added materials and labor can noticeably raise the total.
Confirm capacity, efficiency rating, and included duct length before treating two per-ton quotes as comparable.
Which scope choices can lower a commercial HVAC bill?
Keeping the replacement near the existing configuration usually controls labor and rigging costs. Reuse a sound curb, electrical feed, and accessible duct connections when the contractor confirms they meet manufacturer and code requirements. Avoid paying for duct replacement across the building when inspection identifies only a short damaged section.
Compare at least three itemized bids with the same tonnage, efficiency, controls, warranty, and disposal scope. Scheduling a planned replacement during a contractor’s less-busy period may improve availability, although equipment prices and local demand vary. Do not reduce capacity or omit required ventilation simply to lower the bid.
The most reliable savings come from limiting unnecessary scope, not choosing an undersized unit.
Commercial HVAC prices by U.S. region and access
Labor markets and logistics can push installed pricing away from national averages. Dense urban areas and high-cost coastal markets may run 10%-25% above a typical estimate, especially when street closures, permits, or crane coordination are required. Rural locations can be 5%-15% higher when contractors travel long distances or equipment delivery is limited.
In lower-cost regions with easy roof access, quotes may fall 5%-15% below the national midpoint. These are planning comparisons, not fixed regional tariffs; equipment brand, project size, and local contractor availability can outweigh geography. Regional percentages are relative to a standard $5,500-per-ton planning average.
Access and local labor often explain more quote variation than the state alone.
How long a rooftop replacement takes and what delays it
A straightforward single-unit replacement may require one workday on site, while a multi-unit project can take several days. The schedule also includes delivery, roof preparation, crane setup, electrical work, startup, and controls testing. Larger crews can shorten installation time but do not necessarily reduce total labor charges.
Permits, custom curb adapters, electrical upgrades, and occupied-building coordination can extend the calendar by days or weeks. Rush service may add 10%-25% to labor or mobilization charges, particularly during heat waves or cold snaps. Confirm who is responsible for crane permits and building access arrangements.
Lead time and site coordination should be listed separately from hands-on installation hours.
Extra charges for curb adapters, ductwork, and code updates
A curb adapter can cost about $500-$2,000 per unit, while duct repairs may add $20-$60 per linear foot depending on material and roof access. Electrical upgrades can range from $500-$5,000 or more if a panel or service change is needed. Permit and inspection charges often total $200-$2,000, depending on jurisdiction and scope.
Older buildings may need updated disconnects, economizers, ventilation controls, or fire and smoke interfaces. Refrigerant recovery and disposal may be included in removal or billed separately. Ask the contractor to identify discovered-condition charges and obtain approval before extra work begins.
Clarify exclusions for electrical, curb, duct, permit, and disposal work before signing.
Three commercial rooftop quotes at different project sizes
A small office replacing one 5-ton packaged unit might receive a $25,000-$37,500 quote, or $5,000-$7,500 per ton. That assumes a standard unit, eight to 12 labor hours, existing curb compatibility, and routine crane access.
A 10-ton retail replacement with a curb adapter and minor controls work may cost $45,000-$70,000, or $4,500-$7,000 per ton. A 20-ton project replacing two units with straightforward access might total $70,000-$140,000, or $3,500-$7,000 per ton; multiple lifts, duct repairs, or upgraded controls can raise it.
Use project examples as quote checks only; building conditions determine the final installed price.