Dillon Heating & Cooling is Apopka's full-service heating and cooling contractor, handling everything from a single AC repair to a complete system replacement for homeowners, landlords, property managers, and commercial clients across Orange County. We've been keeping this area comfortable since 2021, and we're trusted by local homeowners and property managers for their heating and cooling needs, season after season. Quick response. Straight pricing. No surprises at the unit. Call us today and we'll get your system sorted fast. We're one phone call from getting your comfort right.
Whether it's a one-time repair or a full system replacement, we handle the full range of residential and commercial HVAC work. That means AC repair and service, heat pump repair and service, system installation and replacement, ductwork, thermostats and smart controls, indoor air quality, seasonal maintenance, and emergency HVAC response. Homeowners count on us to keep their homes comfortable year-round. Property managers and commercial clients rely on us to keep their buildings running without disruption. Work performed by qualified HVAC technicians on every job, and we make sure the HVAC work is done right the first time. We'll find the fault and set it right.
When your air conditioner stops cooling, blows warm air, or shuts down without warning, we diagnose the problem and fix it. That includes refrigerant leak diagnosis, condenser and compressor service, and evaporator coil cleaning. In Florida heat, a failed AC is not a minor inconvenience. We offer same-day AC repair appointments and emergency response because waiting is not an option when temperatures climb.
Heat pumps handle both heating and cooling from a single unit, which makes them the system of choice across this region. When yours stops working, isn't heating or cooling evenly, or the air handler and blower are running poorly, we troubleshoot the full system. We service all makes and models and get year-round comfort restored as quickly as possible.
We handle full HVAC system replacement, new central air installation, new heat pump installation, and ductless mini-split installation for homes and businesses of all sizes. If your existing system is failing, aging out, or simply costing too much to run, a properly sized replacement restores reliable comfort and brings your energy costs back down. We walk you through equipment options and help you choose the right fit for your space and budget.
Leaking ductwork drives up energy bills and creates uneven temperatures throughout a home or building. We locate the leaks, seal them properly, and repair damaged sections. Good airflow is the foundation of a comfortable, efficient HVAC system, and we treat ductwork as a first-class part of the job, not an afterthought.
A thermostat that isn't responding, reading the temperature incorrectly, or running on an outdated schedule costs you money every day. We install and replace standard thermostats and smart thermostat systems that let you set schedules, adjust remotely, and take real control of your energy use. If your thermostat isn't working, we diagnose and fix it the same day in most cases.
We install whole-home air filtration systems, air purifiers, and air scrubbers that work directly with your HVAC system to clean the air circulating through your home or building. For families, allergy sufferers, and commercial spaces where air quality matters, better filtration makes a real difference. We assess your current setup and recommend the right solution for your situation.
A seasonal HVAC tune-up catches small problems before they become expensive failures. We inspect, clean, and test every major component, check refrigerant levels, verify airflow, and give you an honest assessment of where your system stands. Annual maintenance extends system life and keeps efficiency where it should be. We work with homeowners and property managers who want their systems running well all year.
This area runs on cooling. Summers are long, hot, and relentlessly humid, and even the mild Florida winters call for a reliable heating system. High ambient humidity is the signature problem in this part of Orange County. It strains HVAC equipment, creates indoor air quality issues, and makes a home feel uncomfortable even when the thermostat reads a reasonable number. The three services below come up constantly in this area, and we handle all of them well. We give honest recommendations on repair versus replacement, never an upsell, so you always know where you stand before any work begins.
Apopka's year-round humidity creates real problems inside a home: mold risk, musty air, and a clammy feeling that no thermostat setting fully fixes. A whole-home dehumidifier integrates directly with your existing HVAC system and pulls excess moisture out of the air before it circulates through your living space. We assess your current humidity levels, recommend the right unit for your square footage, and handle the full installation. The result is healthier indoor air, less strain on your AC, and genuine comfort at a higher thermostat setting, which also saves on energy costs.
Florida's mild winters and near-year-round cooling demand make heat pumps a practical and efficient choice for this climate. A heat pump heats and cools from a single system, which means one unit handles your comfort all year long. We size and install new heat pumps for homes and businesses, replace aging units, and offer ductless mini-split options for additions, older homes without existing ductwork, or spaces that need independent temperature control. We help you select equipment that fits your home's layout and your long-term energy goals.
An aging central air system in Florida runs nearly every month of the year. Efficiency drops steadily as systems age, and what once kept your home cool at a reasonable cost starts working harder for worse results. When repair costs are climbing and the system is past its useful life, replacement pays back quickly in this climate. We assess your current system, give you a straightforward repair-versus-replace recommendation, and handle the full installation of a new, properly sized central air system. The result is restored cooling reliability and lower monthly energy bills.
Comfort problems don't wait, and neither do we. When the AC goes out in the middle of a Florida summer, or the heat pump stops working on a cold night, we respond fast. We offer same-day HVAC service and after-hours and weekend appointments for urgent repairs. No AC, no cooling, system blowing warm air, or system that stopped working entirely: these are situations we handle on an emergency basis. Transparent pricing with no hidden fees on any HVAC job means you know what you're paying before we start. Property managers and landlords with tenant comfort issues get the same fast response as any homeowner. We'll get your home comfortable again fast.
We service single-family homes, rental properties, multi-unit buildings, and commercial spaces across the area. The same qualified HVAC technicians who handle a homeowner's AC repair also handle a property manager's building maintenance or a commercial client's system replacement. Being locally owned keeps us accountable to our own community. We also serve customers in Ocoee, Winter Garden, Zellwood, Mount Dora, Altamonte Springs, Maitland, and Longwood. If you're nearby and need HVAC service, give us a call and we'll confirm coverage for your address. Pick up the phone and we'll handle the system.
You shouldn't have to chase a contractor for answers, and you shouldn't have to wonder whether the person at your door knows what they're doing. We service heating and cooling systems every day, and we're good at it. Every job is handled by trained technicians who take the work seriously. We give you a clear picture of what's wrong, what it will cost, and what we recommend, whether that's a repair, a tune-up, or a full replacement. We live here. We keep this area comfortable. We stand behind our work. We'll find the fault and set it right.
We assess your current humidity levels and HVAC setup, recommend the right unit for your square footage, and integrate the dehumidifier directly with your existing system. Most installations are completed in a single visit. Before we leave, we walk you through the settings and confirm the unit is operating correctly alongside your cooling equipment.
Florida's mild winters and near-year-round cooling demand make heat pumps a practical and efficient choice. A heat pump handles both heating and cooling from a single system, which simplifies the equipment and keeps operating costs lower than running separate units. We size and install heat pumps for homes and businesses of all sizes, and we also offer ductless mini-split options for spaces without existing ductwork.
Replacement generally makes sense when repair costs are approaching a significant portion of a new system's price, when the unit is past its useful service life, or when efficiency has dropped to the point that monthly energy costs are noticeably higher. In Florida, systems run hard for most of the year, which accelerates wear compared to cooler climates. We give you a straight repair-versus-replace recommendation based on the actual condition of your equipment.
A tune-up covers coil cleaning, refrigerant level check, airflow inspection, thermostat calibration, and filter condition. We also check ductwork for leaks and sealing issues during a full system inspection. In Apopka, where the AC runs for most of the year, catching a small problem in spring is far less disruptive and less expensive than dealing with a system failure in August.
No cool in the middle of a Florida summer, no heat on a cold night, a system that has stopped responding entirely, or a commercial building with a complete HVAC failure all qualify as emergencies. We offer same-day and after-hours response for these situations. Call (321) 241-3235 and we will dispatch a technician as quickly as possible.
Turn the system off at the thermostat to avoid running equipment that may be damaged or overheating. Keep windows and blinds closed to hold whatever conditioned air remains inside. If the system is making a burning smell or unusual sounds, do not attempt to restart it. A technician will diagnose the issue on arrival and explain what happened before any repair work begins.
The technician checks refrigerant levels, inspects the condenser coil for dirt or damage, verifies that the fan motor and capacitor are functioning correctly, and checks electrical connections at the unit itself. They also look at the condition of the cabinet and the clearance around the unit. This inspection gives a complete picture of how the outdoor side of the system is performing.
A frozen coil restricts airflow and prevents the system from transferring heat effectively, which results in warm air from the vents or very weak airflow. Common causes are a dirty air filter, low refrigerant, or a problem with the blower. If you notice ice on the indoor unit or refrigerant lines, turn the system off and call us. Running the system with a frozen coil can cause compressor damage.
Leaking ductwork allows conditioned air to escape into unconditioned spaces, which reduces airflow to the rooms you are trying to cool or heat and drives up energy costs. A clogged filter restricts airflow across the entire system, reduces efficiency, and allows more airborne particles to circulate. We address both during service visits and full system inspections, because ductwork and filtration are foundational to how well an HVAC system performs.
Basic tasks like replacing a filter or checking that the thermostat is set correctly are safe for a homeowner to handle. Anything involving refrigerant, electrical connections at the unit, or internal components should be handled by a qualified HVAC technician. Attempting those repairs without the proper training and tools can cause further damage to the system or create a safety hazard.
We start by assessing your current system, the square footage of the space, and your comfort and efficiency goals. We then recommend the right equipment, quote the job clearly, and schedule the installation. On the day of the work, the old system is removed, the new system is installed and tested, and we confirm it is operating correctly before we leave. The job is not done until the system is running right.
Age and repair history are the main factors. A heat pump that is less than ten years old with a single isolated fault is usually worth repairing. One that is older, has needed multiple repairs in recent seasons, or is no longer keeping up with the cooling demand is often a better candidate for replacement. We assess the system on-site and give you a straightforward recommendation based on what we actually find.
Dillon Heating & Cooling is ready to take your call. Whether you need an emergency repair today, a seasonal tune-up, or a full system replacement, we're available and ready to help. Pick the date. We do the work. We clean up after. Call (321) 241-3235 for a quote and get your HVAC sorted by a local team that knows this area and stands behind every job.
We handle the full range of heating and cooling work in Apopka and the surrounding Orange County area, from a single repair call to a complete system replacement. Whether you own a home, manage a rental portfolio, or operate a commercial property, we match the right service to your situation. Every visit comes with transparent pricing and honest recommendations, so you know what you are getting before any work begins. The table below breaks down what each service covers and who it fits best.
| System Service | Scope of Work | Best For | Things to Know |
|---|---|---|---|
| Emergency HVAC Service | same-day availability, after-hours response, no-cool and no-heat calls, commercial and residential emergency service | any customer whose system has failed and cannot wait for a standard appointment | A failed AC in an Apopka summer is urgent. We come prepared to diagnose and work on the first visit. |
| Full System Installation and ReplacementMost Popular | central system replacement, mini-split and ductless installation, system sizing and equipment selection, installation and post-install testing | homeowners and building owners replacing an aging system or installing HVAC in a new space | When repair costs are climbing or efficiency has dropped significantly, a full replacement is usually the better long-term value. |
| Ductwork Repair and Sealing | duct leak detection, duct sealing and repair, airflow balancing, energy loss assessment | homes with uneven temperatures, high energy bills, or reduced airflow from vents | Leaking ducts can waste a significant portion of conditioned air before it ever reaches the living space. |
| AC Repair and Service | condenser and compressor diagnosis, evaporator coil service, refrigerant leak detection, short-cycle and no-cool troubleshooting | homeowners and property managers with an underperforming or failed central AC | Central Florida's long cooling season puts extra wear on AC components; catching problems early keeps repair costs lower. |
| Heating Repair and Service | heat pump heating diagnosis, air handler and blower service, no-heat troubleshooting, system shutdown diagnosis | any customer whose heating system is down or not performing reliably | Heat pumps are the dominant heating solution in Central Florida; we work on them every day alongside general heating systems. |
| Indoor Air Quality and Air Filtration | air filtration system installation, whole-home air purifier installation, UV air purification units, indoor air quality assessment | households concerned about airborne contaminants, allergens, or air quality in general | In a subtropical climate where homes stay closed and AC runs most of the year, indoor air quality matters more than most people realize. |
| High-Efficiency Central AC Replacement | aging system removal, high-efficiency unit sizing and selection, full installation and testing, energy performance comparison | homeowners with an older, lower-efficiency central AC that runs hard through a long Florida cooling season | An older unit that might last a decade in a cooler climate wears out faster here and costs more to run every month it stays in service. |
| Heat Pump Repair and Installation | heat pump diagnosis and repair, single-unit heating and cooling setup, system sizing for the space, full installation and startup testing | homeowners replacing aging equipment or adding heating and cooling to a space without existing ductwork | Heat pumps are the practical choice in a mild-winter, long-cooling-season climate like Apopka's; one unit handles both functions. |
| Whole-Home Dehumidification and Humidity Control | whole-home dehumidifier installation, integration with existing HVAC system, humidity level configuration, post-install walkthrough | Florida homeowners dealing with persistent moisture, mold risk, or a space that feels warmer than the thermostat reads | A standard AC removes some moisture but was not designed to manage humidity independently; a dedicated unit handles what the AC cannot. |
| Seasonal Maintenance and Tune-Ups | pre-season system inspection, coil and filter check, refrigerant level check, component condition review | homeowners and property managers who want to avoid breakdowns during peak season | A tune-up before the heavy cooling season is the most cost-effective way to catch small problems before they become expensive ones. |
| Thermostat and Smart-Control Installation | programmable thermostat installation, smart thermostat setup and configuration, compatibility check with existing equipment, walkthrough of settings before we leave | homeowners who want better control over comfort and energy use | A smart thermostat upgrade is one of the simplest ways to improve efficiency without replacing the full system. |
How do I know when it is time to replace my AC instead of repairing it again?
A repair makes sense when the system is relatively young, the fault is isolated, and the cost is reasonable compared to what the system has left in it. Replacement becomes the better call when repair costs are climbing, the system is aging past ten to fifteen years, or efficiency has dropped noticeably. We give honest recommendations on repair versus replacement on every visit, so you can make the right call for your home or building without pressure.
Why did my AC stop cooling even though it is running?
A system that runs but does not cool is usually dealing with a refrigerant leak, a dirty evaporator coil, a failing compressor, or a restricted airflow problem. In some cases a clogged filter is the culprit. A technician will work through the system to find the actual fault rather than guessing. We explain what we find before any work starts.
How often should I schedule a tune-up for my HVAC system?
Once a year is the standard recommendation for most systems, and in Central Florida the best time is before the heavy cooling season begins. A pre-season inspection catches worn components, low refrigerant, and dirty coils before they cause a breakdown during the hottest stretch of the year. If you run your system hard year-round, which most Apopka homes do, keeping up with annual maintenance is worth it.
Transparent Upfront Pricing
We explain the cost before any work begins. There are no hidden fees and no surprise charges added after the fact, whether the job is a quick repair or a full system replacement.
What are the signs of a refrigerant or airflow problem?
Common signs of a refrigerant issue include warm air blowing from the vents, ice forming on the indoor coil or refrigerant lines, and the system running longer than usual without reaching the set temperature. Airflow problems show up as weak output from vents, uneven temperatures between rooms, and a system that short-cycles. Both situations call for a technician visit rather than a DIY fix.
Why is one room in my home hotter or colder than the rest?
Uneven temperatures usually point to a ductwork problem, a blocked or undersized vent, or a system that was not sized correctly for the space. In some cases the issue is an aging air handler or a blower that is not moving enough air. We diagnose the cause rather than just adjusting the thermostat, because the fix depends on what is actually causing the imbalance.
What do strange noises from my HVAC unit mean?
A banging or clanking noise often points to a loose or broken component inside the air handler or blower assembly. A high-pitched squealing can indicate a belt or bearing issue. A grinding sound is usually a motor problem. Clicking at startup and shutdown is normal, but clicking that continues while the system runs can signal a relay or control issue. If the noise is new or getting worse, it is worth a call.
Same-Day and Emergency Availability
We offer same-day appointments and after-hours response for urgent situations. A failed AC in an Apopka summer cannot wait, and we treat it that way.
Do I need to be home when the technician arrives?
Someone over eighteen should be present for the visit so the technician can ask about the issue, access the equipment, and walk through the findings with you before any work starts. If you manage a property and cannot be there yourself, a property manager or authorized contact works fine. We confirm the scope and pricing with whoever is on-site before touching anything.
How does your pricing and estimate process work?
When you call, we explain what the visit involves and how pricing is communicated. On arrival, the technician inspects the system and explains what they found before quoting the work. No repairs start until you have a clear picture of what is involved and what it will cost. There are no hidden fees and no charges added after the fact.
Work Performed by Qualified HVAC Technicians
Every job is handled by qualified HVAC technicians who show up prepared, work through the problem systematically, and explain what they find before starting any repairs.
Can a dirty filter or dirty coil actually hurt my system's performance?
Yes, and more than most people expect. A clogged filter restricts airflow to the point where the system has to work harder to move air, which strains the blower motor and can cause the evaporator coil to ice over. A dirty coil reduces the system's ability to transfer heat, which drops efficiency and can lead to compressor problems over time. Changing filters regularly and keeping up with annual maintenance prevents most of these issues.
What does a whole-home dehumidifier do that my AC does not?
A standard air conditioner removes some moisture as a byproduct of cooling, but it was not designed to manage humidity as a primary function. In a subtropical climate like Central Florida's, the AC often cannot keep up, especially on mild days when the system does not run long enough to pull meaningful moisture out of the air. A whole-home dehumidifier integrates with your existing HVAC system and maintains a set humidity level throughout the building regardless of whether the AC is actively cooling.
How long does a full system replacement take?
Most residential system replacements are completed in one day. The timeline depends on the complexity of the installation, whether any ductwork modifications are needed, and the size of the equipment. We give you a realistic estimate of the time involved before the job starts so you can plan accordingly.
Call (321) 241-3235 and we will walk you through your options, give you a straight answer on what the job involves, and get a visit scheduled at a time that works for you.
(321) 241-3235