If you manage a commercial building in Colorado Springs, you've probably asked this question with a failing rooftop unit humming (or not humming) over your head. The honest answer is that there isn't one price. Two buildings on the same street can end up with very different numbers, and a contractor who quotes a firm figure over the phone without seeing your roof is guessing.
What we can do is explain what goes into the number, so you know what you're paying for and can compare quotes fairly. Here are the factors that matter most.
1. Size (tonnage)
Rooftop units are sized in tons of cooling capacity. A small retail space might need a few tons; a restaurant, gym, or warehouse may need much more, or several units. Bigger units cost more, but the right size matters more than the cheapest one. An oversized unit short-cycles, wastes energy, and wears out early. An undersized one runs nonstop and still can't keep up on a hot afternoon. A proper replacement starts with confirming what the space actually needs, not just copying the label on the old unit.
2. Heating type and efficiency
Most rooftop units in Colorado Springs pair air conditioning with a gas heat section, but you'll also see electric heat and heat pump models. The heating type, the size of the heat section, and the unit's efficiency ratings all change the equipment price. Higher-efficiency equipment usually costs more up front and less to run. The U.S. Department of Energy has noted that replacing an older rooftop unit early with a high-efficiency model can cut energy use substantially compared with older efficiency standards, which is worth weighing if your unit runs long hours.
3. Altitude setup for gas heat
Colorado Springs sits at roughly 6,000 feet, and parts of our service area are much higher. Woodland Park is around 8,500 feet. The National Fuel Gas Code calls for gas appliance input to be reduced above 2,000 feet unless the manufacturer's instructions specify otherwise. In practice, that means the heat section has to be set up for the elevation it will run at. It's not a big line item, but it's one of the reasons a unit pulled off a warehouse shelf and dropped on your roof without setup isn't a finished job.
4. Crane and rigging
Every rooftop unit has to get up to the roof, and the old one has to come down. Depending on the unit's weight, the building height, and how close a crane can get, that might be a small crane for a couple of hours or a larger lift with street access, traffic control, and careful scheduling. Tight downtown lots, tall buildings, and units set far back from the roof edge all add cost.
5. Curb adapters and roof work
The new unit sits on a roof curb. If it has the same footprint as the old one, it may drop right on. If not (common when the old unit is from a different manufacturer or era), you'll need a curb adapter or curb modifications, and possibly some roofing work to keep everything watertight. This is one of the biggest "it depends" items, and it's why seeing the roof matters.
6. Electrical, gas, and duct connections
A new unit may need a different breaker or disconnect, updated wiring, gas piping changes, or transitions to match existing ductwork. Controls matter too: whether you keep the existing thermostat, add a programmable or networked control, or tie into a building automation system.
7. Permits and inspections
A commercial RTU replacement usually needs a mechanical permit. In Colorado Springs, Fountain, Monument, Woodland Park, and unincorporated El Paso County (including Falcon, Peyton, and Security-Widefield), permits go through the Pikes Peak Regional Building Department. Permit fees and the inspection itself are part of the real cost of doing the job correctly.
8. How many units, and when
Replacing several units at once can change the economics. You may share one crane day across multiple lifts, for example. Scheduling matters too: if your business can't shut down during the day, after-hours or weekend work may be needed to keep you open.
9. Removal and refrigerant recovery
The old unit has to be disconnected, lifted off, and hauled away, and its refrigerant must be recovered by certified technicians under EPA Section 608 rules rather than vented. That's part of a proper replacement and should be in the quote.
Repair vs. replace: the other half of the question
Sometimes the right number is a repair bill, not a replacement. A failed capacitor, a worn belt, or a bad igniter is usually worth fixing on a unit with life left in it. Replacement starts to make more sense when:
- the unit is near or past the typical 15 to 20 year service life,
- it's breaking down repeatedly and repair bills are stacking up,
- it can't keep the building comfortable even when it's running, or
- parts for the model are hard to find.
We cover that decision in more detail in Repair or Replace? How Long Commercial RTUs Last in Colorado. You can also see how our commercial rooftop unit replacement process works, or get 24/7 commercial rooftop unit repair if a fix is the better call.
How to get a real number
The fastest way to an accurate price is someone looking at your roof. Our free RTU assessment is a no-obligation, on-site look at your rooftop units. A technician checks condition and operation and gives you a straight recommendation to repair, maintain, or replace, plus a written quote when replacement makes sense.
If the number is bigger than this year's budget, commercial HVAC financing through Optimus is available to qualifying businesses, with financing options from $5,000 to $1,000,000. See the financing details or call us at 719-521-3755 any time, 24/7.
Sources
- I.C.E. Heating & Cooling, Commercial Rooftop HVAC Repair and Replacement in Colorado Springs (RTU basics and typical 15 to 20 year service life)
- U.S. Department of Energy, Rooftop Unit Campaign overview (2013) and Better Buildings RTU toolkit
- National Fuel Gas Code (NFPA 54) high-altitude input rule, via UpCodes
- Pikes Peak Regional Building Department: About (jurisdictions served)
- U.S. EPA, Section 608 refrigerant management