
Residential Air Conditioning Service in Jacksonville, St. Augustine & Palm Coast
Trusted Experts for AC Repair, Installation & More
Whether you need air conditioning repair, installation, or maintenance, David Gray Heating & Air offers the services that are right for you, right here in Northeast FL. As a leading air conditioning company Jacksonville residents trust, we serve both residential and commercial customers, and there is no job too big or small. At David Gray Heating & Air, we handle them all, proudly establishing ourselves as the preferred AC company Jacksonville counts on.
Need air conditioning maintenance in Jacksonville? Call David Gray Heating & Air at (904) 605-8190 or send us a message online today.
Air Conditioner Repairs
With over 40 years of service in Jacksonville, David Gray Heating & Air has the experience to deliver fast and effective air conditioning repairs. We stock the most commonly needed parts to complete many repairs in a single visit, helping to minimize downtime and restore comfort quickly.
Your air conditioning system may show signs of trouble before a complete breakdown. Common issues to watch for include:
- Low refrigerant levels: Can cause the system to blow warm air.
- Dirty filters: A clogged air filter restricts airflow and strains your system.
- Frozen coils: Ice buildup on the evaporator coils can cause the system to freeze and stop cooling properly.
- Thermostat issues: A malfunctioning thermostat can lead to inconsistent indoor temperatures.
Our highly trained technicians service nearly every type of AC equipment, including central air conditioners, heat pumps, and ductless mini-split systems from all major manufacturers. We arrive promptly, diagnose issues thoroughly, and provide straightforward repair solutions. Additionally, we offer expert advice on preventive maintenance to help extend the life and efficiency of your air conditioning system.
Air Conditioner Installation & Replacement
Air conditioning installation should only be done by a trained and qualified HVAC professional. This helps to ensure that your new air conditioner is installed according to safety standards and will remain working efficiently and reliably for years to come. The benefits of a new AC installation can include:
- Reduced energy consumption
- Lower utility costs
- Quieter operation
- Improved comfort and air quality
In a rush to get your new unit up and running? David Gray even offers same-day replacements or installations for your convenience. With access to a wide range of top-tier brands and models, we support you in choosing a unit that best fits your needs and budget. Our installation process is comprehensive, including both site assessment and precision fitting to maximize efficiency and comfort in your home. Post-installation, we also provide a walkthrough of your new system, instructing on basic operations and answering any questions to ensure you feel confident with your choice.
HVAC Maintenance & Tune-Ups
Maintaining your air conditioning unit with regular service is essential to keeping it operating efficiently. David Gray offers seasonal tune-ups as part of a comprehensive air conditioner maintenance plan, helping your system perform at peak efficiency year-round.
Keeping your air conditioning system well-maintained is also crucial for extending its lifespan and enhancing overall performance. Routine maintenance can help lower repair costs, reduce energy bills, and ensure more consistent comfort. Here’s why scheduling AC maintenance is so important:
- Improves Efficiency: Regular maintenance keeps your system running at its optimal efficiency, reducing energy consumption.
- Prevents Costly Repairs: By catching issues early, you can avoid unexpected breakdowns and expensive repairs.
- Extends System Lifespan: Proper care can help your air conditioner last longer, saving you the cost of a premature replacement.
- Enhances Comfort: A well-maintained unit provides more consistent and reliable cooling, improving overall comfort in your home.
Our service technicians are NATE certified, the national gold standard for technician development and certification. This certification ensures all maintenance tasks are performed to the highest standards, providing peace of mind and confidence in the reliability of our service.

Our Reviews See What Our Customers Say
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Clearly explained what needed to be done and why. Worked efficiently and neatly. I’m very pleased.
Jennifer W. -
We are grateful to all the professionals who turned our frown upside down.
Wes L. -
Thanks for doing such a thoughtful and precise job, we are very happy!
Ryan M. -
They were organized, prepared, careful, thorough, meticulous, pleasant, and incredibly helpful.
T. Prousis -
From start to finish (estimates thru installation) if you use David Gray you will be completely satisfied and happy that you did.
Cindy S. -
Our technician Rowdy did a great job explaining ways to improve our system and was very helpful.
Stephen B. -
Outstanding service on our duct cleaning today from David Grey Heating & Air.
Jackie G. -
They worked without distractions and cleaned when they completed their work.
Fern M.


Indoor Air Quality Products & Services
The quality of the air inside your home can influence your family's health and happiness, but most people do not measure the indoor air quality or take steps to improve it. At David Gray, we offer the latest indoor air quality solutions and services to help you breathe easier, including:
- Air purifiers and air filtration systems
- Germicidal UV light systems
- And more!
For help improving your indoor air quality, contact our air quality experts today!
Indoor air pollution can significantly affect your household's health. Our services focus on reducing allergens, pathogens, and toxic substances in your home's air. We employ cutting-edge technologies that enhance air purity by eliminating common household pollutants. In addition to installations, our team offers routine maintenance to ensure continued efficiency of your air quality products, optimizing your indoor environment for health and relaxation. Understanding the specific air quality challenges in your area, we tailor solutions to effectively combat pollution unique to your locality.
Ductwork Services in Jacksonville
Ductwork is paramount to a healthy, functioning HVAC system. Ignoring duct issues or having a duct system improperly installed can lead to higher utility costs, lower HVAC lifespan, and poor air quality. Our expert technicians are available for any air duct services you may need, including:
- Ductwork installation
- Ductwork replacement
- Ductwork repair
Schedule duct services with our team today by calling (904) 605-8190 or visiting us online!
Proper ductwork ensures optimal airflow throughout your home, enhancing both comfort and system efficiency. Our team conducts thorough inspections and diagnostics to identify issues such as leaks, blockages, or inefficiencies within your duct system. We use advanced tools and techniques to achieve precise repairs and installations, safeguarding against future problems. By addressing ductwork promptly, you can alleviate excessive strain on your HVAC system, preventing energy loss and ensuring better air quality. Moreover, our solutions are sustainable, targeting long-term enhancements in system performance as well as substantial energy savings.
Frequently Asked Questions
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How long will my AC unit last?The typical life span for most air conditioners, heat pumps, or ductless AC systems is 12 to 15 years. To get the most life out of your system, change the air filter often, keep the area around the condenser unit clean, and schedule AC maintenance at least once a year.
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Why is my AC leaking water?In most cases, water leaks are caused by algae clogging the condensate drain, though sometimes a thawing evaporator can also cause water leaks. It is best to have a professional inspect the condensate drain and drip tray for problems.
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Why is my AC freezing up?Ice or frost buildups on the evaporator and refrigerant lines can be caused by a clogged air filter, airflow issues, dirty coils, low refrigerant, or compressor problems. Have the system inspected by an HVAC professional to be sure of the cause.
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How often should I check the air filter?It is a good idea to check the air filter every month, replacing it whenever it looks dirty or clogged. Basic fiberglass or pleated filters can last one to three months, while high-efficiency or HEPA filters can last six months to a year.
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When should I replace my AC unit?If your air conditioner is over 12 years old and is starting to have problems like frequent breakdowns, efficiency losses, or a major component failure, such as the compressor, it may be time for an AC replacement. If it is under 12 years old and has no major problems, AC repairs may be more cost-effective.
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Does David Gray service rental properties and Airbnbs?Yes! The David Gray team is proud to partner with many property managers and short-term rentals throughout the area to ensure their property’s AC is operating at peak efficiency during their guest’s stays. Whether you need to prepare your AC system for the summer months or you’re looking to outfit your rental home for increased AC efficiency, we will provide the trustworthy AC services you need.