Corna Heating and Air has been serving Ocala and the surrounding Marion County area since 2001, handling heating and cooling repair, service, installation, and replacement for homes and businesses alike. We've serviced and replaced systems all over these neighborhoods, and we know what Florida's climate demands from an HVAC system. Whether you own a single-family home, manage a rental property, or run a commercial space, we bring the same level of care to every job. Residential HVAC. Commercial HVAC. One number for both.
Noticing uneven temperatures or a spike in energy bills? Those are signs your system needs attention, and we are a local HVAC company homeowners rely on to get to the bottom of it fast. Call us and we will figure out what is going on. Leave the heating and cooling to us.
The hardest part of an HVAC problem is knowing when to call, and the answer is usually sooner rather than later. A small issue with your air conditioner or heat pump can turn into a bigger repair if it sits. We handle the full range of heating and cooling work, from a straightforward AC repair to a complete system replacement, and everything in between.
All work is performed by qualified HVAC technicians who know this equipment and take the time to do the job right. We give you honest recommendations on repair versus replacement, never an upsell, so you can make a confident decision about your system.
Our everyday services include:
From a seasonal tune-up before the heat kicks in to a full system replacement, we handle it all. Your system is in good hands with us.
Comfort problems don't wait, and neither do we, especially when a failed air conditioner in Florida stops being an inconvenience and starts being a health concern. When the AC goes down in the middle of a Marion County summer, you need someone who can respond the same day, not next week.
We offer same-day availability, after-hours response, and weekend service for urgent heating and cooling situations. Whether it is a system that has gone completely down, an AC that is blowing warm air, or a heat pump that stopped responding, we take those calls seriously. You can count on prompt response, even for last-minute comfort calls.
Do not wait it out hoping the problem resolves on its own. Call (352) 619-9879 and we will get someone out to you. We're ready to get your heating and cooling running again.
Ocala sits in north-central Florida, where summers are long, hot, and humid, and winters are mild enough that a light jacket usually does the job. Cooling loads dominate the calendar here, and the indoor humidity that comes with the territory creates its own set of comfort problems. The services below are ones we see demand for consistently in this area, and each one addresses something specific about what it takes to stay comfortable in this climate.
Florida humidity does not take the summer off. Even on days when the temperature feels manageable, high indoor moisture levels make a home feel sticky and uncomfortable, and over time that moisture can affect air quality and the condition of the space itself. A whole-home dehumidification system works alongside your existing HVAC equipment to pull excess moisture out of the air before it becomes a problem. The result is a home that feels genuinely comfortable, not just cooler. We size and install these systems to match your home and your existing setup, and we walk you through how it works before we leave.
Heat pumps are well-suited to Florida's climate because they handle both heating and cooling in a single system. With mild winters and a long cooling season, a heat pump runs efficiently year-round without the fuel costs of a furnace. If you are replacing an older system or upgrading to something more efficient, a heat pump installation is worth a serious look. We handle the full process: sizing the new system to your space, removing the old equipment, and installing and testing the new unit before we wrap up. For homes without existing ductwork, ductless mini-split systems are a practical option we can walk you through as well.
An aging central air conditioner in Florida works harder and costs more to run than a newer high-efficiency model. When a system is past its useful life, repeated repairs add up fast, and the efficiency gap between an older unit and a current one can be significant given how many months of the year the AC runs here. A full replacement starts with a proper load calculation so the new system is sized correctly for your home, followed by equipment selection, removal of the old unit, and a complete installation and startup test. We check airflow and verify the system is performing the way it should before we consider the job done. Give us a call and we'll get the comfort back.
Dealing with a furnace that won't keep up or an AC that can't cool? We work with all types of customers across the area, and we adjust our approach to fit the situation.
For homeowners, that means comfortable, reliable cooling and heating for your family, handled without disruption to your day. For landlords and rental property owners, it means responsive service and honest assessments so you can keep your tenants comfortable and your properties in good shape. We understand that a unit sitting without AC is not just a comfort issue for your residents.
For commercial clients, including offices, retail spaces, and light commercial buildings, we focus on getting the work done efficiently and minimizing downtime. A business that depends on a functioning HVAC system cannot afford a drawn-out repair process, and we do not drag our feet. Experienced HVAC technicians. Code-compliant work. Professional service.
We're ready to get your heating and cooling running again.
We are based in Ocala and serve customers throughout Marion County and the surrounding area. If you are nearby, we can get to you. Our service area includes:
If you are not sure whether we cover your location, call us at (352) 619-9879 and we will let you know right away.
What sets our technicians apart is straightforward: they show up prepared, diagnose the problem thoroughly, and tell you what they found in plain terms. There is no guessing, no pressure, and no vague estimates. A qualified HVAC technician arrives, assesses the system, and explains what is going on before any work begins.
From there, we recommend the right path forward, whether that is a repair, a tune-up, or a full replacement. We have been doing this work in Ocala since 2001, and our approach has not changed. We find it. We fix it. We test the airflow.
We're ready to get your heating and cooling running again.
We offer same-day and after-hours response for emergency situations, including complete system failures and no-cool calls during Florida's hottest months. When you call (352) 619-9879 for an urgent situation, we work to get a technician dispatched as quickly as possible. We do not leave customers waiting when the problem cannot wait.
Florida's humidity levels stay elevated for most of the year, and a standard air conditioner only removes moisture when it is actively running. A whole-home dehumidification system works continuously alongside your existing HVAC equipment to pull excess moisture from the air, which reduces that sticky feeling and helps protect the home from mold and mildew over time. For homes that feel uncomfortable even when the AC is running, this is often the piece that makes the biggest difference.
Heat pumps handle both heating and cooling from a single system, which suits Florida's long cooling season and mild winters well. They operate efficiently in the temperature ranges Ocala sees most of the year, and they eliminate the need for separate heating and cooling equipment. If you are replacing an older system, a heat pump is worth a serious look for both comfort and long-term operating costs.
If your system is more than 12 to 15 years old, running on refrigerant that is no longer manufactured, or requiring repairs that are adding up to a significant cost, replacement is often the more practical decision. A modern high-efficiency unit will cost less to run through a long Florida cooling season, and the efficiency gap between older and current equipment can be substantial. We give you honest recommendations on repair versus replacement so you can decide what actually makes sense for your budget.
A tune-up covers the filter, coil cleaning, refrigerant level check, airflow test, blower and motor inspection, and thermostat calibration. In a climate where the cooling system runs nearly year-round, skipping maintenance means small problems have a longer window to become bigger ones. Catching issues before the peak of summer is the straightforward way to avoid an emergency call on the hottest afternoon of the year.
Both can produce similar symptoms, including uneven temperatures and rooms that never quite reach the set temperature. During a service visit, we inspect the equipment and test airflow through the air handler and ductwork to identify where the problem actually is. Leaky or undersized ducts are one of the most common reasons a system works harder than it should and still falls short.
Turn the system off at the thermostat if it is making unusual sounds, short-cycling, or not responding normally, since running a failing system can sometimes cause additional damage. Keep windows and doors closed to hold as much conditioned air inside as possible. Make sure the area around the outdoor unit and the indoor air handler is clear so the technician can get to work immediately on arrival.
You do not need to shut anything off before we arrive. Our technicians handle the necessary safety steps as part of the service process. If you are concerned about a system that is making unusual sounds or behaving erratically, turning it off at the thermostat is a reasonable precaution, but it is not required before we get there.
Yes, we provide documentation of the work performed so you have a record of what was done and what was found during the visit. That record is useful if you need to reference the service history later or if a follow-up issue comes up. We go over the details with you before we leave so nothing is unclear.
Conditioned air escaping into the attic or crawl space through leaky ductwork means your system has to run longer to reach the set temperature, which drives up energy costs and puts extra wear on the equipment. In Florida, where the AC runs for most of the year, even moderate duct leakage adds up to a noticeable difference on the monthly bill. Sealing the ductwork addresses both the comfort problem and the efficiency loss at the same time.
A clogged filter restricts airflow through the system, which reduces efficiency and forces the blower to work harder than it should. It also means the air circulating through the home is carrying more dust, allergens, and particulates than a clean filter would catch. In a climate like Ocala's, where homes stay closed up and humidity runs high, keeping the filter and ductwork clean is one of the most direct ways to maintain good indoor air quality.
Permit requirements vary depending on the scope of the work and local jurisdiction rules. When a permit is required for a system installation or replacement, we handle that as part of the job and make sure the work is done to code. We will let you know during the estimate process whether a permit applies to your specific project.
Corna Heating and Air is ready to help with any heating or cooling need in Ocala and across Marion County. Whether you need a same-day repair, a new system installation, emergency service, or a seasonal tune-up, we are one call away.
Call (352) 619-9879 for a quote or to schedule service. We handle residential and commercial work, and we are available for urgent calls when you need us most. We've been part of this community for over two decades, and we take that seriously.
From a quick AC repair on a hot Ocala afternoon to a full system replacement you have been putting off, we handle the complete range of heating and cooling work across Marion County. The table below lays out every service we offer, who it fits best, and what you should know going in. Call (352) 619-9879 to talk through your situation and get a quote.
| Service Type | What the Service Includes | Common Needs | Things to Know |
|---|---|---|---|
| Thermostat and Smart-Control Installation |
| homeowners looking for better comfort control and lower monthly energy costs | An outdated or miscalibrated thermostat can cost money every month; a smart upgrade pays for itself quickly during a long Florida cooling season |
| Indoor Air Quality and Air Filtration |
| households with allergy sufferers, respiratory sensitivities, or persistent odor and air quality concerns | Florida's year-round pollen and humidity create real indoor air quality challenges; filtration systems work alongside existing HVAC equipment and do not require a separate unit |
| Ductwork Repair and Sealing |
| homes with uneven temperatures, high energy bills, or visible duct damage | Leaky ducts sending conditioned air into the attic are one of the most common hidden causes of comfort problems and high utility costs in Florida homes |
| Heat Pump Installation |
| homeowners replacing older equipment or adding comfort to a space without existing ductwork | Heat pumps handle both heating and cooling from one unit, which makes them a practical and efficient choice for Florida's long cooling season and mild winters |
| Seasonal Maintenance and Tune-Ups |
| any homeowner who wants to avoid emergency calls and keep energy bills in check | In a climate where the cooling system runs nearly year-round, a tune-up before peak summer is the most cost-effective HVAC service there is |
| High-Efficiency Central AC Replacement |
| homeowners with aging central AC systems driving up summer electric bills | Modern high-efficiency units carry significantly better SEER ratings than equipment installed a decade ago; the savings show up on every monthly bill through a long Florida cooling season |
| Full System Installation and ReplacementMost Popular |
| homeowners replacing aging equipment or upgrading to a more efficient system | Systems more than 12 to 15 years old or running on discontinued R-22 refrigerant are strong replacement candidates; we give honest repair-versus-replace guidance before recommending anything |
| Whole-Home Dehumidification and Humidity Control |
| Ocala homes that feel sticky or uncomfortable even when the AC is running correctly | A dehumidifier pulls moisture out of the air continuously, not just when the AC cycles on; it addresses the humidity problem the AC alone was never designed to solve |
| Heat Pump Repair and Service |
| homes running a heat pump for both heating and cooling | Heat pumps are the most common system type in this climate; a reversing-valve problem can cause it to lose one mode while the other still works |
| Heating and Furnace Repair |
| households that lose heat during an Ocala cold snap | Heating calls here are seasonal but urgent when they happen; we keep availability open for those moments even outside peak season |
| AC Repair and Service |
| homeowners and landlords with an AC that has stopped cooling or is underperforming | Florida's long cooling season puts extra hours on equipment; catching problems early keeps repair costs lower than waiting until the system fails completely |
| Emergency HVAC Service |
| anyone facing a system failure during a Florida heat wave or an unexpected cold stretch | We keep same-day availability for urgent calls; calling early in the day gives us the best chance of getting a technician to you before conditions peak |
How do I know if my AC needs a repair or a full replacement?
Age and repair history are the two clearest indicators. If a system is more than 12 to 15 years old, has needed repeated repairs in the past couple of seasons, or is still running on R-22 refrigerant that is no longer manufactured, replacement is usually the smarter financial decision. We walk through the honest math with you before recommending anything, so you can decide what actually makes sense for your situation.
Why is one room in my home hotter or colder than the rest?
Uneven temperatures usually point to one of a few things: leaky or undersized ductwork, a blower that is not moving enough air, a refrigerant charge that is off, or a zoning issue. In older Florida homes, duct leakage into the attic is one of the most common causes. We inspect the full system to find the actual source rather than guessing at it.
How often should I schedule a maintenance tune-up?
Once a year is the standard recommendation for most systems, but in a climate like Ocala's where the cooling system runs nearly year-round, scheduling a tune-up before peak summer gives you the best protection against emergency calls during the hottest months. If you have a heat pump handling both heating and cooling, keeping it on an annual schedule is especially worthwhile.
Transparent Upfront Pricing
We give you a clear number before any work begins and do not start until you have approved the scope. No surprises on the invoice is something we take seriously on every job.
What does a seasonal tune-up actually include?
A tune-up covers the essentials that keep a system running efficiently and help catch problems early. That means a filter check and replacement, coil cleaning, refrigerant level check, airflow test, thermostat calibration, and an inspection of electrical connections on the unit. The goal is to find small issues before they become expensive failures.
Why does my system keep short-cycling, turning on and off repeatedly?
Short-cycling is usually a sign that something is forcing the system to shut down before completing a full cooling or heating cycle. Common causes include a dirty or clogged filter restricting airflow, a refrigerant charge that is too high or too low, an oversized system that cools the space too fast, or a failing component like a capacitor. It puts extra wear on the equipment and should be diagnosed promptly.
Can you get a technician out the same day?
Yes, we offer same-day availability for urgent heating and cooling calls, including no-cool situations during Florida's hot months. Calling early in the day gives us the best chance of getting a technician to you before conditions peak. Prompt response, even for last-minute comfort calls, is part of how we operate.
Work Performed by Qualified HVAC Technicians
Every repair, installation, and tune-up is handled by qualified HVAC technicians who know this equipment and this climate. All work is done to code.
How does your estimate process work?
A qualified HVAC technician arrives, inspects the equipment, and explains what they found before any work begins. Once we have a clear diagnosis, we give you a firm number and explain the scope. We do not start work until you have approved it. If repair and replacement are both reasonable options, we tell you the honest difference so you can make the call that fits your budget.
Why is my energy bill higher than it used to be even though the system seems to be running?
Rising energy costs with a system that appears to be functioning are often a sign of reduced efficiency. Dirty coils, a low refrigerant charge, leaky ductwork, or a system that is simply aging past its efficient years can all cause it to run longer and work harder to reach the same temperatures. A tune-up or diagnostic visit usually identifies the cause quickly.
Same-Day and Emergency Availability
When your system goes down during a Florida heat wave or an unexpected cold snap, we dispatch for urgent calls and keep same-day availability for situations that cannot wait.
What causes strange noises from my HVAC unit?
Banging or clanking usually points to a loose or broken component inside the air handler or blower. Grinding can indicate a failing motor bearing. Hissing sometimes means a refrigerant leak. Clicking at startup and shutdown is normal, but clicking that continues while the system runs often points to a relay or control issue. Any noise that is new or getting louder is worth having diagnosed before it turns into a larger failure.
Do I need to be home when the technician comes?
Someone over 18 should be present for the appointment. The technician needs access to the indoor air handler, the outdoor unit, and ideally the thermostat. If pets are in the home, securing them before the technician arrives helps the job move faster. Beyond that, there is nothing special you need to prepare.
Is a whole-home dehumidifier worth it if my AC is already working correctly?
In Ocala's climate, yes, for many households. An air conditioner removes some moisture as a byproduct of cooling, but it only runs when it is actively cooling the space. A whole-home dehumidifier pulls moisture out of the air continuously and can be set to a target humidity level independent of the thermostat. If your home feels sticky even when the temperature is comfortable, or if you have had mold or mildew issues in the past, a dehumidifier addresses the problem the AC was never designed to solve on its own.
Every home and every system is a little different. Call (352) 619-9879 and we will give you a straight answer on what your heating or cooling situation actually needs.
(352) 619-9879