Commercial Air Conditioning Solutions
Rooftop units, splits, VRF, and chiller service for Arizona businesses.
Commercial rooftop and split system service
Commercial air conditioning covers a wider range of equipment than a single residential split system. Rooftop package units sit above retail stores and restaurants, ducted split systems serve offices, and larger multifamily or industrial properties sometimes rely on variable refrigerant flow systems or chillers feeding multiple zones. Each of these setups has a different access point, refrigerant circuit, and control sequence, so a technician starts by confirming which type of system is installed and how it is zoned across the building before diagnosing a problem.

A rooftop unit that is short cycling in a retail store, a VRF system losing capacity in one zone of an office building, or a chiller that will not maintain setpoint in a multifamily clubhouse each require a different diagnostic path. Repair visits begin with a $120 diagnostic fee, waived once you proceed with the repair, and the diagnosis identifies the specific failed component rather than a general guess at the problem.
Keeping a business running during repairs
Air conditioning failures in a commercial building affect employees, customers, and sometimes inventory or equipment that is sensitive to temperature. Roof access, electrical isolation and the areas served by each thermostat matter before work begins. A failed unit may serve only one suite, while another system supplies several occupied zones. Discuss business hours and access with the shop when arranging service.
For larger projects such as replacing a rooftop unit, adding capacity to a VRF system, or retrofitting ductwork for a new tenant space, a free written estimate is provided before any work begins. The estimate reflects the specific equipment, access requirements, and scope of the property rather than a generic price.
Financing equipment replacement
Rooftop unit replacement and larger commercial cooling projects represent a real expense for a property owner or manager. Financing through home service lenders is available, including 0% promotional options for qualifying, approved credit, with applications typically taking a few minutes and most decisions returned instantly. Work is scheduled once financing is approved. Reach the Tempe shop at 1917 E 5th St to discuss a cooling issue affecting a commercial property or to request an estimate for equipment replacement.
Our process
- 1
Site walk
We walk the property with you or your facility team and look at the equipment.
- 2
Written scope and price
You get a clear scope of work and a price before anything starts.
- 3
Work around your business
We schedule the work to keep disruption to tenants and customers low.
- 4
Documentation
You get a record of the work for your files.
What Our Customers Say
Leave Us a Google Review★★★★★
"Christie was personable and knowledgeable, and Ryan's diagnostics were thorough, clean, and clearly explained. Reliable, professional, fair pricing. We'd rate Iron Horse a 10+."
★★★★★
"The Iron Horse maintenance program is fantastic. Jonathan's inspections are detailed and he takes the time to explain everything so we understand our system and what it needs long-term."
★★★★★
"Jorge responded to our plumbing emergency within hours, assessed it thoroughly, and explained every step with a sense of humor. Iron Horse will absolutely be our first call next time."
Frequently asked questions
What types of commercial cooling equipment do you service?
Rooftop package units, ducted split systems, VRF systems, and chillers are all part of the commercial scope, serving offices, retail, restaurants, and multifamily properties.
Can repairs be scheduled around our business hours?
Discuss operating hours and access requirements when arranging service. The repair scope determines which equipment must be shut down.
How is a commercial AC repair priced?
A $120 diagnostic fee applies and is waived once you move forward with the repair, with the repair price given in writing before work begins.
Is there a cost to get a rooftop unit replacement estimate?
No, estimates for commercial cooling replacement projects are free, with the full scope and price provided in writing.
We Service Every Make and Model
Iron Horse is locally owned and services every make and model of AC, heat pump, furnace, water heater and plumbing fixture. If you got a quote for a specific brand, we can work on it.
Authorized Dealer
- Carrier
- Goodman
- A/C Pro
- Ruud
We also service
- Trane
- Lennox
- Rheem
- American Standard
- Bryant
- Daikin
- York
- Amana
- A.O. Smith
- Bradford White
- Rinnai
- Navien
Fast, Fair, Always There
Need commercial air conditioning solutions?
Talk to a licensed technician today. Estimates on replacements are free. Repair visits start with a $120 diagnostic, and we waive it when you go ahead with the repair. 24/7 emergency service.


