Kissimmee
Proven HVAC Solutions in Kissimmee, FL
If you’re looking for high-quality heating and cooling services in Kissimmee, FL, you can count on us at Underwood AC to deliver long-lasting results. We have a proven track record for professionalism and attention to detail and will always go the extra mile to make sure you’re completely satisfied. The next time you have a problem with your HVAC system, just reach out to us for a solution.

Complete HVAC repair & installation in Kissimmee
We provide a full range of HVAC, air filtration, water heater, and pool heater services in Kissimmee and throughout Osceola County:
AC System Repairs, Installs & Maintenance
We provide complete air conditioning services, from quick repairs to full system installations. Count on us to maintain your AC and keep your home cool all summer.
Furnace Services
A broken furnace is the last thing you want in the middle of winter. Our team offers reliable furnace repairs, installations, and maintenance to keep you warm when temperatures drop.
Ductless AC Installation & Repairs
No ductwork? No problem. We offer ductless air conditioning solutions to provide efficient and flexible cooling options for your home.
Air Handler Troubleshooting & Replacement
Proper airflow is key to a comfortable home. Our air handler services include repairs, installations, and replacements to improve circulation and HVAC efficiency.
Heat Pump Care & Maintenance
A well-functioning heat pump is essential for year-round comfort. We specialize in heat pump installation, repairs, and maintenance to keep your system running smoothly.
UV Air Purifier Installation
Indoor air pollution can be a hidden problem. Our UV air sanitizer installations help eliminate bacteria, viruses, and allergens for fresher, healthier indoor air.
Dehumidifier Services
Too much humidity can lead to mold and discomfort. We install and replace dehumidifiers to create a more balanced and breathable indoor environment.
Professional Air Quality Assessments
Not sure if your indoor air is safe? We provide comprehensive air quality testing to identify pollutants and recommend solutions for cleaner air.
Ductwork Installation
New or damaged ductwork can impact your HVAC system’s efficiency. We offer expert ductwork installation services to ensure proper airflow throughout your home.
Air Filtration System Upgrades
Protect your home from airborne pollutants with our advanced air filtration solutions. We offer multiple options to enhance your home’s air quality.
Complete Water Heater Services
Hot water is a necessity, not a luxury. Our team handles water heater repairs and installations to ensure you always have hot water when you need it.
Pool Heating Systems (Gas & Electric)
Enjoy your pool in every season with our energy-efficient pool heating solutions. We install and service both gas and electric pool heaters.
HVAC Service Plans
Preventative maintenance keeps your HVAC system in top condition. Our service agreements provide scheduled inspections to reduce breakdowns and extend system life.
If you’d like to learn more about our services or schedule an appointment for a repair or installation, just reach out to us today.
Budget-Friendly HVAC Financing
Keeping your home comfortable shouldn’t strain your finances. Our three financing plans make HVAC repairs and upgrades affordable with flexible payments and quick approvals.
Why Work with Us?
We know how important a reliable HVAC system is, and we’re here to ensure yours is always running at its best. Our commitment to quality service and outstanding customer care means you can always count on us to take care of the problem, no matter how serious it is. Our focus is on building trust and delivering solutions that stand the test of time. When you work with us, you’ll get:
Frequently Asked Questions
Here are some commonly asked questions about our range of HVAC services in Kissimmee.
If your air conditioner isn’t cooling as it should, is making odd noises, or has an unexplained increase in energy usage, it may need servicing. You might also notice weak airflow, unpleasant smells, or the system cycling on and off too frequently. Addressing these issues early can help prevent bigger, more expensive problems down the road.
Furnaces can develop problems like ignition failure, malfunctioning thermostats, and clogged filters that restrict airflow. If your system is making loud or unusual noises, struggling to maintain a consistent temperature, or shutting off unexpectedly, it likely needs repair. Regular maintenance can help detect these problems early and keep your furnace running efficiently.
If your water heater takes longer to heat water, produces inconsistent temperatures, or has visible rust or leaks, it may be time for a replacement. Tanks that are over 10 to 15 years old often lose efficiency and may require more frequent repairs. Upgrading to a new unit can provide better performance, improve energy savings, and ensure a steady hot water supply.
Ductless air conditioners provide targeted cooling, allowing you to set different temperatures in individual rooms, which can improve comfort and efficiency. They don’t require ductwork, making installation easier and reducing energy loss associated with traditional HVAC systems. Additionally, they operate quietly and help improve air quality by reducing dust and allergens.
Choosing the right pool heater depends on factors like your pool’s size, local climate, and energy efficiency goals. Gas heaters warm water quickly and are great for colder areas, while heat pumps and solar heaters are more energy-efficient but may take longer to heat the pool. Understanding your usage habits and budget will help you determine the best system for your needs.
If you experience uneven temperatures, excessive dust buildup, or rising energy costs, your ductwork may be damaged or outdated. Leaks, poor insulation, or improper sizing can cause your HVAC system to work harder than necessary, leading to inefficiency. Replacing old ducts can improve airflow, enhance indoor comfort, and help reduce utility costs.
Air filtration systems help reduce indoor air pollutants such as dust, pet dander, and pollen, improving overall air quality. High-efficiency filters, like HEPA filters, can capture microscopic particles that trigger allergies and respiratory issues. Installing an air filtration system can also help extend the life of your HVAC unit by keeping dust and debris from clogging components.
Indoor air quality testing can identify pollutants like mold, carbon monoxide, and volatile organic compounds that can impact your health. Poor air quality may contribute to allergy symptoms, respiratory problems, and long-term health issues. Testing allows you to find and address specific contaminants, whether through air purifiers, dehumidifiers, or upgraded filtration systems.
Heat pumps provide both heating and cooling by transferring heat instead of generating it, making them more energy-efficient than conventional systems. They work best in moderate climates but can still function in colder areas with additional heating support. Because they use less electricity, heat pumps can lower energy costs while maintaining comfortable indoor temperatures year-round.
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At Underwood AC, we provide expert AC repair and maintenance in Davenport, FL, that will keep your air conditioner running at full capacity. Schedule an appointment with us today so we can get started.
Recent Jobs and Reviews in Kissimmee, FL
Kissimmee, FL at a glance
Underwood AC has completed 10 jobs in Kissimmee, FL in September 2026.
The 9 customer reviews shown here average 5.0 out of 5.
The most recent job was on September 25, 2026.
Job Locations and Reviews
Performed diagnostic on approximately 10-year-old gas furnace. Found the system with a clogged condensate drain line. Quoted the customer for drain cleaning and presented the maintenance agreement. Customer enrolled in the Arctic Membership today, and I completed the first summer checkup. Cleaned and flushed the condensate drain line, applied Viper treatment, checked temperature split, and inspected the air filter; filter is clean. System was tested after service and is currently operating and cooling properly with good drainage. The remaining two full maintenance visits will need to be scheduled.
Performed a diagnostic on the downstairs HVAC system. Customer stated the upstairs system was not cooling yesterday, but it is currently operating and cooling properly. Checked the upstairs thermostat; it was reading 68°F with a 68°F set point. For the downstairs system, the thermostat was reading 70°F with a 69°F set point. Checked system operation, refrigerant pressures, subcooling, superheat, and temperature split. All readings were within normal operating range at this time. Checked the condensate drain line and confirmed the system is draining properly. Inspected the air filter and found it damaged and not installed to manufacturer specifications. The filter was marked as inspected on 9/17 and needs to be properly replaced. No additional filter was found inside the air handler area, so the existing filter was reinstalled temporarily. At this time, the system is operating properly with no equipment issues found. Recommended replacing the damaged filter and installing it properly
Performed leak search on mini-split system. Found refrigerant leak at flare nut. Initially tightened the flare nut, which appeared to stop the leak; however, electronic leak detection still indicated a slight leak. Recovered the refrigerant from the line set, cut off the existing flare, and re-flared the line. Reinstalled the connection and evacuated the system to 248 microns. Performed a pressure test with no leaks detected, and the vacuum held properly. Added approximately 2 lbs of refrigerant and tested the system in cooling mode. Unit is operating and draining properly at this time. Performed a final electronic leak inspection at the repaired flare connection with no leak detected. All work performed is covered under warranty.
Performed a diagnostic on a 2005 Carrier system that was not cooling. Checked the air handler and confirmed the blower motor is operating. Upon inspecting the outdoor unit on the roof, found the system completely void of refrigerant. The compressor is severely corroded and was pulling ambient air into the system. Due to the condition and age of the equipment, repair would require special-order parts, with limited availability and no guarantee that the required components can be sourced. Explained the repair limitations to the customer and discussed the option of upgrading to a new system. Customer requested a replacement proposal. Contacted the office and created a lead for Kenneth. Kenneth arrived on site, presented the replacement proposal, and the customer signed for the new system today. No $79 diagnostic fee was collected today because the customer approved the system replacement. The system is currently 100% down and will remain out of operation until the replacement installa
Performed preventive maintenance on downstairs Unit #1, located on the right side of the exterior closet/mechanical room. System is a 2.5-ton Carrier unit. During the inspection, found the drain line T-fitting broken, causing drainage issues while the system was operating in cooling mode. Recommended replacement of the broken fitting, and the customer approved the repair. Removed the damaged T-fitting and installed a new one. After the repair, tested system operation in cooling mode and checked system pressures, subcooling, superheat, and temperature split. Also checked compressor, condenser fan motor, and blower motor amperage. All readings and system operation are good at this time. Cleaned the drain line and drain pan and added Viper treatment. Rinsed the condenser coil and removed debris from inside the condenser. Inspected the blower wheel and evaporator coil; both look good at this time.
Performed preventive maintenance on Unit #2, a Carrier 3-ton system located in the left-side exterior mechanical room. Checked system operation in cooling mode, including system pressures, subcooling, superheat, temperature split, compressor amperage, condenser fan motor amperage, and blower motor amperage. All readings and system operation are within normal operating conditions at this time. Cleaned the condensate drain line and drain pan and added Viper treatment. Rinsed the condenser coil and removed debris from inside the condenser. Inspected the system and found the blower wheel and evaporator coil clean. The system is operating properly and the condensate drain is draining properly at this time.
Upstairs UV light and Surge protection Recommendations
UV light and Surge protection Recommendations Estimate
Performed service on the air handler following the previous visit by Mason, who installed the air handler control board and blower motor. At that time, the system was not communicating properly. Upon arrival, I connected to the Cool Cloud app and downloaded the air handler control board data, including the system settings and configuration information. The data was shared as required. I then verified the equipment at the rooftop and confirmed the system was properly configured and operating normally. Tested the system after completing the setup. The air handler is now communicating properly with the blower motor, and the system is operating and cooling properly at this time. The customer also reported water dripping from the fourth floor into the ceiling area and inside the air handler closet. The customer stated there is high humidity in the bathroom/closet area and that work is scheduled for tomorrow to investigate and locate the source of the water leak. Residents from the second
Performed a diagnostic on the apartment-over-garage unit. Customer stated that the safety float switch was repeatedly receiving water and tripping the system off. Inspected and tested the primary drain line and drain pan. The drain line is clear and draining properly, and the drain pan is not retaining any water. No blockage or drainage issue was found. During inspection of the evaporator coil capillary tubes, I found condensation forming on the tubing and dripping onto the UV light wiring, allowing water to travel into the secondary drain area. When the wiring was moved, visible water staining was present. I relocated and secured the UV light wiring with zip ties and repositioned the capillary tubes away from the affected area to prevent further condensation from contacting the wiring and draining into the secondary pan. Customer also has a humidifier operating inside the room. I explained that the HVAC system is designed to remove humidity from the space. The thermostat was set to
Victor gave us a courtesy call to let us know he was on the way and arrived right on time. Within a few minutes, he was able to troubleshoot the issue. He is very knowledgeable and friendly. I highly recommend them.
Victor, the technician showed up when he said he would spent several hours looking at our equipment. He then made recommendations no pressure just recommendations on things that needed to be done. Left the site clean and did a great job.
He did a great job explaining why the AC was backing up and how to provide maintenance for it in the future. He also really went the extra mile making sure the unit was fully flushed out.
Victor was our technician and provided excellent service. He was prompt with arriving at the time we requested. I was expecting the worst but was pleasantly surprised with the cost of the repair. Victor was honest and wasn’t trying to sell me something I didn’t want. He made several recommendations on a service plan. I could not be happier with the service provided and highly recommend this company. The communication from the time I booked the appointment until after the job was completed was top notch.
Victor was amazing He took care of the issue we had and was very efficient with his time. He took the time to explain everything.
Victor was awesome! He came out to check on an AC issue and was able to diagnose quickly and update everyone with the findings and solution. Thank you!
Really pleased with Mara’s service. Called to let me know she was on her way. Super friendly and explained everything so even I could understand it. Clearly knew what she was doing. So pleased I changed to Underwood.
Already completed Have two systems
Great job; very detailed; shares before and after ; request him for our account
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For dependable HVAC services in Kissimmee that always deliver results, you can count on us at Underwood AC. We will show up on time and take control of the situation to make sure your home is running at full capacity. Schedule an appointment with us today to get started.


