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Last Updated: February 25, 2025
According to the Department of Energy, approximately 55% of energy use in American homes goes toward heating and cooling. Since cooling and heating represent such a significant chunk of your utility bills, you'll want to ensure that the HVAC system in your Jacksonville home is functioning optimally.
We've researched and assembled this guide to the top HVAC companies in Jacksonville to help you choose the right person for your job and get your system into top shape.

Our Rating
User Rating
Clear pricing policy
Prompt service delivery
Informative resources
Free quotes
Reliable customer support
Services Offered

Our Rating
User Rating
Reliable customer support
Clear pricing policy
Prompt service delivery
Services Offered

Our Rating
User Rating
Reliable customer support
Clear pricing policy
Prompt service delivery
Free quotes
Informative resources
Services Offered

Our Rating
User Rating
Prompt service delivery
Clear pricing policy
Informative resources
Free quotes
Reliable customer support
Services Offered

Our Rating
User Rating
Free quotes
Reliable customer support
Informative resources
Clear pricing policy
Services Offered

Our Rating
User Rating
Informative resources
Reliable customer support
Clear pricing policy
Services Offered

Our Rating
User Rating
Free quotes
Informative resources
Prompt service delivery
Services Offered

Our Rating
User Rating
Reliable customer support
Clear pricing policy
Free quotes
Services Offered

Our Rating
User Rating
Clear pricing policy
Informative resources
Services Offered

Our Rating
User Rating
Reliable customer support
Services Offered
Today's Homeowner looks at dozens of datapoints on hvac companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:
If your HVAC system is broken or getting near the end of its lifespan, it likely needs repairs or replacement from an HVAC company. Watch for these signs your system needs service:
If you notice any of the above, it's wise to have a local HVAC technician inspect your system. They can identify problems and recommend whether repair or full HVAC replacement is required.
Your HVAC installation or maintenance cost fluctuates depending on the type of unit. Common HVAC unit types include the following:
HVAC expenses vary based on the services needed. HVAC systems are complicated and may need several types of maintenance. Costs for common jobs are as follows:
| HVAC Unit Type | Cost | |
|---|---|---|
| Split | $1,933-$4,928 | |
| Hybrid Split | $3,917-$7,216 | |
| Heat Pump | $3,033-$30,903 | |
| Packaged Heating and Air | $254-$423 |
HVAC system repairs and replacements are important, but can be pricey. Luckily, homeowners can take steps to reduce wear and tear on their HVAC and lower future maintenance needs.
| Service | Cost | |
|---|---|---|
| Filter Replacement | $63-$169 | |
| Condensor Cleaning | $1,269-$3,807 | |
| Thermostat Repair | $85-$211 | |
| Ductwork Cleaning | $406-$1,015 |
It's important to know what makes a good HVAC company. A properly licensed contractor with the right experience will give you confidence that they can fix your system, providing you with effective heating and cooling for your home.
Contact at least three HVAC companies for quotes. Describe the issues and have technicians visit to inspect your system if possible. Compare the companies' explanations, solutions, estimated costs, warranties, and timeframes. Avoid providers that pressure you or demand payment upfront.
When hiring an HVAC provider, choose one with technicians that have the appropriate training, licenses, and experience. In all states, HVAC contractors must obtain a Section 608 Technician Certification from the Environmental Protection Agency (EPA). This certification is mandatory for all contractors who "maintain, service, repair or dispose of equipment that could release refrigerants into the atmosphere." An individual must pass an exam (the type of exam depends on the type of equipment they intend to work with) to be certified by the EPA. All other licensing requirements are handled at the state level.
The state of Illinois doesn't have state-level licensing requirements for contractors. However, there may be local regulations, so make sure to check with your municipal government to confirm that your contractor meets all the requirements. You can verify an Illinois business license on the Secretary of State's website. You should also check reviews and complaints on sites like Yelp, the Better Business Bureau (BBB), and Google Reviews. Pick a company with glowing reviews and testimonials about great customer experiences.
Always make sure you understand the details of your project. For HVAC repairs, your provider should specify which parts require replacement and why. Confirm that your technician will clean and test the system after repairs are completed to verify that it’s working properly. For replacement, ask the contractor to explain the new HVAC system brand, model, energy efficiency, estimated installation time, and features. Before signing a contract, you should understand the process your provider will use to properly size the system for your home and the price you'll pay.
Trustworthy HVAC companies provide warranties for their work. The broader the coverage, the better, so make sure to review warranties between companies. Choose the one that provides the most comprehensive coverage at a reasonable cost.
Get written bids before starting any HVAC work. The quote should cover costs for both materials and labor. Read all terms carefully before signing.
Typically, your HVAC system should be inspected twice a year. After that inspection, your technician will tell you what, if any, services are needed. You should also have an inspection if you notice any new issues, like strange noises, leaks, or unusual smells. If your home has ductwork, it should be serviced every few years.
The best times of the year to have your HVAC system inspected are during the spring and fall. Technicians tend to be less busy during these times, which makes it easier to get an appointment. This also ensures that your system is ready for the summer and winter, the times of the year when it gets the most use.
You can save energy throughout the year by making it easier for your HVAC system to maintain your home's temperature. During all seasons, keep your thermostat as close to the outside temperature as is comfortable, and avoid making drastic changes — adjust it only a few degrees at a time. You might also consider installing a smart thermostat.
It takes around one to three days to have an HVAC system installed or replaced. If you need just a furnace or a single air conditioning unit, this might take between half a day and two days. This timeline can be influenced by the size of your home, how easily accessible your system is, and any issues your technician discovers.
For a 2,000-square-foot home, you'll need between 2.5 and 5 tons of air conditioning capacity. For homes over 1,000 square feet, central air is likely to be more effective for cooling than window units.
For a 2,000-square-foot home, you should also look for a furnace that is between 50,000 and 80,000 BTUs (British thermal units).
Typically, HVAC financing is offered through a third-party lender. If your HVAC company doesn't offer these options, you may consider taking out your own loan. Be sure to speak with a financial advisor and your HVAC company to determine what options are available to you and appropriate for your situation.
There are several ways you can make your HVAC system more energy-efficient:
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