When the rooftop unit quits on a Friday afternoon, you don't need a call center, a ticket number, and a callback window three days wide. You need somebody who picks up and shows up. Ultimate HVAC Inc. handles commercial HVAC repair and maintenance across Skokie and the surrounding Cook County area — offices, storefronts, restaurants, small warehouses, multi-unit buildings. We're family owned. Chano Garcia and his family do the work. No subcontractors, no "press 1 for service," no pitch. We're open 24/7, we offer same-day service, and we'll tell you straight what's wrong.
What commercial HVAC repair and maintenance involves
Commercial equipment fails for boring reasons, and the boring reasons are what we chase first. A no-cool call usually comes down to a failed capacitor, a burnt contactor, a tripped high-pressure switch, low charge from a leak, or a condenser coil packed with cottonwood and grease from the kitchen exhaust. A no-heat call on a rooftop unit is often an ignition control, a flame sensor, a cracked or clogged burner assembly, or a gas valve that's done. We diagnose with gauges and a meter, not guesswork.
Maintenance is where the real money gets saved. On a typical visit we pull and replace filters, wash coils, clear condensate drains and pans, check belts and sheave alignment, tighten electrical connections, read amp draw against nameplate, verify refrigerant charge and superheat, test safeties, check gas pressure and combustion on heating equipment, and confirm the thermostat or controls are actually calling the way the schedule says they should.
We also look past the box on the roof. If a unit is short-cycling or half your building is cold, the problem is frequently sizing, airflow, or ductwork — undersized returns, crushed flex, leaking trunk lines, dampers nobody has touched in a decade. We measure static pressure and tell you what we find, even when the answer isn't a part sale.
Why Ultimate HVAC Inc. for commercial HVAC repair and maintenance
- Family owned, family run. You get Chano Garcia and his family — not a dispatcher, not a subcontractor crew that's never seen your building before.
- Open 24/7, Monday through Sunday. Emergency service is available around the clock, because commercial equipment doesn't fail on a schedule.
- Same-day service. When you call with a down unit, we work to get a tech to your Skokie property that day.
- Free second opinions. If another contractor handed you a five-figure replacement quote, let us look before you sign anything.
- Transparent pricing and online scheduling. Book a firm appointment time online, get the diagnosis in plain language, and see the numbers before we turn a wrench.
- Fundamentals first. Sizing, airflow, ductwork, static pressure. We'd rather fix the reason your equipment keeps failing than sell you the same repair twice.
- Financing available when a repair turns into a replacement conversation.
Our commercial HVAC repair and maintenance process
- You call or book online. Real person, real appointment window. Tell us the equipment type, what it's doing, and how urgent it is.
- On-site diagnosis. We check the unit, the electrical, the refrigerant side, the gas side if applicable, and the airflow. We find the cause, not just the symptom.
- Straight answer and a number. We explain what failed, why it failed, what it costs to fix, and what happens if you wait. No pressure, no theater.
- Repair on the spot when we can. Common parts ride with us. If something has to be ordered, you get a date, not a maybe.
- Airflow and system check after the fix. We verify the unit is running to spec — temperature split, amp draw, static pressure — before we call it done.
- Maintenance plan if you want one. Scheduled visits so the next failure is one we catch on a Tuesday morning instead of during your busiest shift. Our current seasonal maintenance offer is $140 for the season.
- Follow-up. If something isn't right after we leave, you call the same family that did the work.
What commercial HVAC repair and maintenance typically costs
Anyone who quotes a commercial repair over the phone without seeing the equipment is guessing. Estimates range based on the type and tonnage of the unit, its age and condition, whether it's a packaged rooftop, split system, or boiler, how accessible it is, and what actually failed. A contactor or capacitor is a modest, quick fix. A compressor, heat exchanger, or refrigerant leak repair on an older unit is a different conversation — and sometimes the honest answer is that replacement makes more sense than another repair.
Maintenance is priced by the number of units and the scope of the visit; our current promotion is $140 for the season. Diagnostics, parts, and labor are laid out before we start, and we don't add line items after the fact. If you've already got a quote from another contractor and it doesn't smell right, our second opinion is free. Call or book online for a free quote on your Skokie property.
Service areas we cover
- Skokie
- Evanston
- Niles
- Morton Grove
- Lincolnwood
- Wilmette
- Glenview
- Des Plaines
- Park Ridge
- Surrounding Cook County communities
FAQ
Do you offer emergency commercial HVAC repair in Skokie?
Yes. We're open 24/7, Monday through Sunday, including emergencies. If your unit is down, call — we don't route you to an answering service.
Can you come out the same day?
Same-day service is available. Call early if you can and we'll get you on the schedule for that day.
How often should commercial HVAC equipment be serviced?
Twice a year at minimum — once before cooling season, once before heating season. Restaurants, high-occupancy spaces, and units near heavy exhaust usually need more frequent coil cleaning and filter changes.
Should I repair or replace an old rooftop unit?
Depends on the failure and the equipment. If a major component goes on a unit that's near end of life and already struggling, replacement usually wins. We'll show you the math and let you decide. We also handle AC and furnace installation when it's time.
Another company quoted me a full system replacement. Can you check it?
That's what free second opinions are for. Send us the quote, let us look at the equipment, and we'll tell you what we'd actually do.
Do you work on ductwork and airflow problems, not just the equipment?
Yes. Uneven temperatures, short-cycling, and high bills are frequently duct and airflow issues. We measure static pressure and inspect the duct system as part of diagnosing the problem.
Do you use subcontractors?
No. Chano Garcia and his family do the work.
Ready for a straight answer and a firm appointment time? Call Ultimate HVAC Inc. at (773) 494-2052 or book online for a free quote on commercial HVAC repair or maintenance anywhere in Skokie and the surrounding Cook County area. We're here 24/7, and you'll be talking to the family that does the work.