Millis Air Conditioning and Heating - Jacksonville's Trusted HVAC Services
729 Parker St, Jacksonville, FL 32202
Property Service Solutions
- HVAC system maintenance
- HVAC installation or replacement
- HVAC system repair
Meet the Team
Millis Air Conditioning and Heating has been serving Jacksonville and surrounding communities since 2003, founded by David Millis after his 20-year career as a Facilities Operation and Maintenance Technician with the local utility company. Our business grew from recognizing that Jacksonville homeowners and businesses needed reliable, honest HVAC service they could trust. We specialize in installation, repair, and maintenance of heating and cooling systems, serving Duval, Clay, Orange Park, St. Johns counties and the Beaches area. What sets us apart is our commitment to treating every customer with integrity—whether you've been with us for 15 years or are calling for the first time. We focus on what you actually need, not what someone wants to sell you, and offer free estimates and preventive maintenance plans designed to extend your system's life while saving you money. Our service calls are scheduled for your convenience with quick response times, because we believe your comfort shouldn't wait.
Question Answers
What areas of Jacksonville does Millis Air Conditioning and Heating serve?
We provide HVAC services throughout Duval County, Clay County, Orange Park, St. Johns County, and the Beaches area. Whether you're in downtown Jacksonville, the suburbs, or coastal communities, our team is available to help with installation, repairs, and maintenance.
How can I prevent uneven cooling in my Jacksonville home?
Uneven cooling is common in our area due to humidity and older ductwork. We recommend regular maintenance to check airflow, clean ducts, and ensure your system is balanced. During a service visit, we'll inspect for issues like blocked vents, inadequate insulation, or an undersized unit, and provide solutions tailored to your home's layout.
What's included in your preventive maintenance plans?
Our preventive maintenance plans are customized based on your system's needs and include cleaning components, checking refrigerant levels, inspecting electrical connections, and testing safety controls. For Jacksonville homeowners, we pay special attention to condensate drain lines—which often clog here—to prevent water damage and maintain efficiency. These plans help extend your system's life and reduce unexpected repairs.
Business Location & Hours
| Mon: | Closed |
| Tue: | 9:00 AM - 5:00 PM |
| Wed: | 9:00 AM - 5:00 PM |
| Thu: | 9:00 AM - 5:00 PM |
| Fri: | 9:00 AM - 5:00 PM |
| Sat: | 9:00 AM - 5:00 PM |
| Sun: | Closed |
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