Frostline handles commercial air conditioning for offices, retail, restaurants, and multi-tenant buildings. We repair, install, replace, and maintain rooftop units, packaged systems, and split systems across coastal Palm Beach County. Commercial HVAC work runs on a different scale from residential. We handle repair, installation and heating on the same rooftop units.
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Frostline services commercial AC for businesses across coastal Palm Beach County. We work on the rooftop units, packaged systems, and split systems these buildings run on. Here are the properties we handle most. Commercial HVAC service across these property types is most of what the crew does. Rooftop heating and cooling both come off the same unit.
Office suites and retail spaces need steady cooling through business hours, often across several zones on one or more rooftop units. We repair, maintain, and replace the systems that keep staff and customers comfortable, and we schedule the work around your hours. Zoned offices need HVAC systems balanced across suites. One rooftop unit serving four tenants makes heating complaints as common as cooling ones, and changeovers get checked at the same visit.
Kitchens throw off heat, and the AC fights it all day. Restaurants usually run rooftop units sized for that load, plus make-up air to replace what the exhaust hoods pull out. We service the cooling side so the dining room stays comfortable through a rush. Kitchen loads push HVAC equipment harder than any other commercial use. Preventative maintenance is what keeps a rush from becoming a repair call, because the cooling load in a kitchen is double a retail space.
Exam rooms, labs, and waiting areas need steady temperature and humidity control, not just cold air. We keep these systems running so patients stay comfortable and the indoor air stays in range, with service scheduled around appointments. Medical spaces need the heating side as tightly controlled as the cooling. Commercial HVAC in these rooms runs closer to spec than most.
Office parks, strip centers, and mixed-use buildings run several units across different tenants, and one hot suite means a complaint. We handle service calls, repairs, and rooftop replacements for property managers, and we coordinate roof access so tenants barely notice. Multi-tenant sites need one point of contact. Our commercial HVAC services cover every unit on the roof rather than one suite at a time, and repair services are logged per suite.
Frostline is an AC specialist, and that includes commercial work. We repair, install, replace, and maintain commercial air conditioning, including rooftop package units, split systems, and the controls that run them. Here's what we handle. That covers commercial HVAC from repair through installation. Heating, cooling and controls are one system, not three trades.
When a commercial system stops cooling, we run a full diagnostic before quoting anything. On rooftop and packaged units, the usual failures are the compressor, the belt-driven blower motor, a burned contactor, a stuck economizer damper, or a dirty condenser coil. A dirty coil drives more than half of "not cooling" calls and makes the compressor work harder, so we check airflow first. We find the actual fault, show it to you, and give you the price before we fix it. Diagnosis before quoting is the whole point. Commercial HVAC repair goes wrong when someone guesses at the fault, and mechanical faults look identical to control faults from a thermostat.
Most commercial buildings cool from the roof. We service rooftop package units and split systems, including repair, replacement, and the economizer that pulls in outside air for free cooling when the weather allows. On the coast, salt air corrodes the condenser coils, fins, and electrical terminals up there faster than inland, so rooftop units need closer attention. When a unit is past saving, we handle the replacement and the hoist it takes to set the new one. Rooftop HVAC systems carry the heating side too, and the corrosion that kills a condenser coil kills a heat exchanger.
A commercial replacement isn't just a bigger box. We size the system with a commercial load calculation (ACCA Manual N), which counts the people, lights, equipment, and ventilation inside the building, not just the shell the way a home calc does. New units run the low-GWP refrigerants R-454B or R-32 instead of R-410A, which the EPA phased out of new equipment in 2025. We pull the permits, remove and haul off the old unit, set and commission the new one, and verify it cools to spec before we leave. Commercial HVAC installation is a permitting job as much as a mechanical one.
Scheduled maintenance is the cheapest way to avoid downtime, and the recognized standard for it (ANSI/ASHRAE/ACCA Standard 180) calls for periodic inspection of commercial systems. We do that on a cadence that fits your building: clean the coils, clear the condensate drain, check the economizer and belts, test the electrical, and measure the charge. The U.S. Department of Energy notes a dirty condenser coil can raise compressor energy use by about 30%, so a clean unit pays for the visit. There's no contract to sign. You book us when it's time. Preventative maintenance is the cheapest line on any HVAC budget.
Buildings with several rooftop units and different tenants need someone who can track them all. We handle multi-unit service for property managers: one hot suite, one failed unit, or a full round of seasonal checks across the building. We coordinate roof access and schedule around business hours so tenants and customers barely notice we're there. Tracking several units is its own job. Our commercial HVAC services keep a record per unit, and repair services across a portfolio need one contact rather than five.
Our Process
Call or message Frostline and tell us what the system is doing. For an outage, we get a technician out fast. For a quote or a new system, we set up an on-site assessment. Tell us whether it is heating or cooling that failed. That alone narrows the commercial HVAC diagnosis before anyone climbs a ladder. HVAC services cover both sides.
A technician inspects the rooftop units, controls, and electrical, and finds the real problem. For a replacement, we run a commercial load calculation so the new unit is sized right. The assessment covers the whole HVAC system, not the one unit that prompted the call. Installation quotes come from the same visit, cooling load drives the sizing, and heating capacity gets measured too.
We give you an itemized price before any work starts. No surprise trip charges or fees added after the fact. If it's a repair-or-replace call, we give you the math so you can decide. Itemised pricing is standard on commercial HVAC work. You see the repair line and the replacement line side by side, with the installation number alongside.
We schedule around your business hours and coordinate roof access so we stay out of the way. The system gets tested before we leave, and you get what was done in writing. Scheduling around trading hours is part of the service. Most HVAC repair work here happens before opening or after closing. Heating work is scheduled the same way.
Commercial AC is part of what Frostline does as an AC specialist. We only do air conditioning, not plumbing, electrical, or roofing, so the work on your building is the work we do every day. We service commercial rooftop package units, split systems, and multi-zone setups, and we're set up for the 3-phase power commercial equipment runs on. Frostline is licensed, insured, and bonded. Air conditioning is the only trade we run, which is why commercial HVAC solutions here are never subcontracted out.
We price commercial work upfront and itemized, with no surprise trip charges or fees added after the fact, and there's no maintenance contract to lock you in. We schedule around your hours, coordinate roof access, and keep you updated so you're not chasing us for a status. When a building also needs residential-style work, we handle AC repair, AC maintenance, and AC installation and replacement too. Frostline serves businesses across Delray Beach and coastal Palm Beach County. No contract means you book the maintenance when the building needs it. Installation and repair are quoted the same way, and commercial HVAC services are priced per visit.
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We assess and quote before any work starts, at no cost. Commercial HVAC assessments cost nothing, and HVAC solutions are quoted rather than assumed.
Around-the-clock response when a commercial system goes down. Overnight commercial HVAC repair is covered, heating failures included.
We service commercial rooftop, packaged, and split systems. HVAC systems of every rooftop type are covered, installation included.
Pay per visit, with no locked-in maintenance agreement. Preventative maintenance without a contract.
Answers to the questions business owners and property managers ask most about commercial AC. These come up on most commercial HVAC calls.
We service both. Commercial rooftop and packaged units work on the same refrigeration principles as residential AC. The differences are 3-phase power, the controls, and the rooftop access, and we're set up for all three. We repair, replace, and maintain rooftop package units, split systems, and multi-zone setups for commercial buildings. Rooftop and split units are both commercial HVAC work. The heating stage is the main difference from a residential system, and construction type changes the load calculation.
Yes. Frostline answers 24/7, and when a commercial system goes down we get a technician out fast, because downtime costs you business. We carry the common parts on the truck, so a lot of commercial repairs get handled on the first visit. Downtime is the real cost. Commercial ac repair finished on the first visit is what stocking parts buys you, because HVAC services carry them on the truck.
It depends on the unit's age, the refrigerant, and what failed. A rooftop AC unit has a median life around 15 years according to ASHRAE, and units that old often still run R-22, which the EPA banned from production in 2020, so recharging a leaking R-22 unit gets expensive fast. A burned-out compressor usually means replacement, because the burnout can contaminate the whole system. We give you the repair-or-replace math and let you decide. We don't push a replacement to avoid a repair. A commercial HVAC installation is a bigger number than a residential one, so heating capacity belongs in the spec.
No. Frostline does commercial maintenance per visit, with no contract and no lock-in. The recognized standard (ANSI/ASHRAE/ACCA Standard 180) calls for periodic inspection of commercial systems, so we'll recommend a cadence that fits your building, but you book us when it's time, not because a contract says so. Cadence is a recommendation, not a contract. Preventative maintenance on commercial HVAC works best quarterly in this climate, with heating checks part of it.
Commercial units are bigger, run on 3-phase power, and often sit on a roof, so the equipment and the labor cost more than a home system. We quote it itemized and upfront, with no surprise trip charges or fees added after the work. You see what you're paying for before we start, so you can compare it line for line. Three-phase power and roof access are the cost drivers. Commercial HVAC repair labor reflects both, and mechanical access adds hours on a roof, as installation access does again.
Yes. We schedule commercial work around when you're open, and we coordinate roof or equipment access ahead of time so we're not disrupting your customers or tenants. For multi-tenant buildings, we keep the property manager updated on what we find and what each unit needs. Coordination is half of commercial HVAC services. Installation windows get booked around trading hours, and the other half is turning up when we said we would.