Jacksonville, FL
Commercial AC and heating repair for Jacksonville businesses
Rooftop package units, split systems and equipment room cooling for offices, clinics, restaurants and retail, with phones answered around the clock.
Quick answer
Who repairs commercial rooftop AC units in Jacksonville, FL?
We repair commercial rooftop package units and split systems in Jacksonville 24 hours a day, including compressors, economizers, belts, controls and refrigerant leaks. A technician diagnoses the unit on the roof and gives a written price before any part is replaced.
Warning signs
Signs a rooftop unit needs attention
Warm air at the diffusers
One zone of the building runs warm while the thermostat calls for cooling.
Unit short cycling
Compressors starting and stopping every few minutes, often a charge, airflow or control fault.
Water at the ceiling tiles
A plugged condensate drain or cracked pan on a rooftop or above-ceiling unit.
Loud belt squeal or grinding
Worn belts or failing blower and motor bearings.
Tripped breakers
A compressor or fan motor drawing high amps before it fails outright.
Humid, clammy space
Unit running but not removing moisture, common with oversized or economizer problems.
Overview
Commercial repair is about keeping the doors open
When a house loses cooling, the family's uncomfortable. When a business does, customers leave, staff can't work, and in some rooms equipment starts to overheat. Commercial calls get triaged by what's at stake: a server closet or a medical office goes first, a warehouse office can wait an hour.
Most light commercial work in Jacksonville is rooftop package units on strip centers and office buildings, plus split systems in smaller offices and restaurants. The failures overlap with residential work, compressors, capacitors, contactors, refrigerant leaks, but add belts, economizers, three-phase power and building controls.
We diagnose with readings, not guesses: amp draw on each phase, pressures against conditions, static pressure and control voltage. You get a written price for the fix, and if a unit is near the end of its life, a straight answer about whether repair still makes sense.
What we fix
Rooftop units that go down mid-shift
A package unit failing during business hours usually shows up as warm air in one part of the building. We check the unit's supply and return temperatures, then go through the compressor, condenser fans, blower belt and controls. Many rooftop failures are electrical: a failed contactor, a blown fuse on one phase, or a capacitor on a fan motor. Those are repaired on the spot when the part is available. A failed compressor gets a written price and an honest look at the unit's age before anything is ordered.
Split systems in offices and clinics
Smaller offices, dental suites and restaurants often run residential-style split systems or light commercial splits in a mechanical closet. The problems look familiar, frozen coils, clogged drains, refrigerant leaks, but the stakes are different. A clinic can't run with water coming through a ceiling tile. We work around your hours where we can, protect the space below an above-ceiling unit, and clear drain lines to the outside rather than just resetting the float switch. You get a short written note on what failed and what was done, which is useful for the landlord or property manager.
Server and equipment room cooling
Small server rooms and telecom closets often run on a ductless head or a dedicated split that was never meant to carry the load now in the room. When it fails, heat climbs fast. We restore cooling first, then check whether the unit is sized for the current equipment. If not, we'll price a correctly sized replacement or a redundant unit so one failure doesn't take the room down again. We'll also check that the room's thermostat or sensor sits where it reads the equipment, not the door.
How the job runs
How a commercial service call runs
- 1
Call and triage
We ask what's affected and how critical the space is to set priority.
- 2
On-site diagnosis
Readings at the unit: phase amps, pressures, temperatures and controls.
- 3
Written price
Repair options and any replacement recommendation, in writing.
- 4
Repair
Parts replaced, leaks repaired and tested, drains cleared to the outside.
- 5
Verify
Supply temperatures confirmed in the affected zones before we sign off.
Timing
How long a commercial repair takes
Electrical failures on a rooftop unit, a contactor, capacitor, fuse or fan motor, are usually resolved in a single visit when the part is on hand. Refrigerant leaks take longer because the leak has to be found, repaired and pressure tested before recharging. A compressor replacement on a rooftop unit depends on part availability and, for larger units, a crane lift, so we'll give you a realistic date before the order goes in.
Why commercial units here work so hard
Late July afternoons in Jacksonville typically hit 93F, and about seven in ten of those days reach 90F or more, while overnight lows barely drop below 78F. For a rooftop unit sitting on a dark roof, that means very little recovery time. Units run long hours for most of the year, then switch to heat on the few cold mornings. That duty cycle wears belts, contactors and fan motors faster than in cooler markets, which is why commercial maintenance intervals here are shorter.
Brands we service and install
Trane, Carrier, Lennox, Rheem, Goodman, Daikin, Mitsubishi Electric, American Standard, Bryant, Ruud, Amana, Honeywell, York, Heil
Cost factors
What affects the cost of a commercial repair
- Unit size and typePackage units, splits and ductless heads use different parts at different prices.
- Three-phase componentsContactors, motors and compressors on three-phase units cost more than single-phase parts.
- AccessRoof hatches, ladders, crane lifts and after-hours access add time.
- RefrigerantLeak repair and recharge depend on the refrigerant type and how much the unit holds.
- TimingAfter-hours calls are handled around the clock; we'll confirm any after-hours rate on the call.
Every repair is priced in writing after diagnosis, before parts are ordered or replaced.
FAQ
Commercial HVAC repair questions
Do you work on rooftop package units?
Yes, rooftop package units are most of our light commercial work, along with split systems and ductless units.
Can you come outside business hours?
Yes. Phones are answered 24/7 and we can schedule around your hours where the repair allows.
Do you handle three-phase equipment?
Yes, including three-phase compressors, contactors and motors.
What if the unit needs a crane?
Larger compressor or unit replacements may need a crane lift; we arrange it and give you the date.
Can you cool a server room that keeps overheating?
We restore cooling first, then check the unit against the current heat load and price a correct fix.
Do you offer maintenance contracts?
Yes, commercial maintenance is available and shortens the gap between small wear and a breakdown.
Which brands do you service?
Carrier, Trane, Lennox, Rheem, Daikin, Goodman and the other common light commercial brands.
Related services
Other work on the same system
AC Tune Up
Coil rinse, drain flush, refrigerant and electrical checks before the muggy season.
Learn moreHVAC Maintenance Plans
Two scheduled visits a year and drain line care, for systems that run most of the year.
Learn moreHVAC Inspection
Detailed system inspections for home purchases, insurance and second opinions.
Learn moreCommercial AC Installation
Rooftop and split system replacements planned around business hours.
Learn moreCommercial HVAC Maintenance
Scheduled service for rooftop units and commercial splits, with written reports.
Learn moreGet the building cool again
Call any hour. We'll diagnose the unit, price the repair in writing, and get your space back to temperature.