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Last Updated: February 25, 2025
On average, Americans devote 55% of their energy usage to heating and cooling their home, according to the Department of Energy. In Key Largo, much of that energy use likely goes toward cooling off during the warm summer months. In fact, Key Largo residents spend, on average, $160 a month cooling their homes.
Our guide to the top HVAC companies in Key Largo can help you save money by getting your HVAC system installed, repaired or replaced by the right person for the right price.
Our Rating
User Rating
Clear pricing policy
Prompt service delivery
Informative resources
Free quotes
Services Offered
Our Rating
User Rating
Reliable customer support
Clear pricing policy
Informative resources
Free quotes
Services Offered
Our Rating
User Rating
Clear pricing policy
Prompt service delivery
Informative resources
Reliable customer support
Services Offered
Our Rating
User Rating
Informative resources
Reliable customer support
Free quotes
Clear pricing policy
Services Offered
Our Rating
User Rating
Clear pricing policy
Reliable customer support
Informative resources
Services Offered
Our Rating
User Rating
Free quotes
Reliable customer support
Prompt service delivery
Clear pricing policy
Services Offered
Our Rating
User Rating
Clear pricing policy
Reliable customer support
Prompt service delivery
Free quote
Informative resources
Services Offered
Our Rating
User Rating
Prompt service delivery
Services Offered
Our Rating
User Rating
Free quotes
Clear pricing policy
Informative resources
Reliable customer support
Services Offered
Our Rating
User Rating
Prompt service delivery
Clear pricing policy
Reliable customer support
Informative resources
Free quotes
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:
An HVAC system that's not working properly or old likely needs professional attention for repairs or replacement. Watch for these indicators that your system needs service:
If you notice any of these HVAC red flags, your system evaluated. A local company can complete an inspection, diagnose problems, and recommend repairing or replacing your HVAC unit.
What you pay for HVAC installation or maintenance varies based on your system style. Common HVAC unit styles include the following:
HVAC maintenance prices vary based on the work needed. HVAC systems are complicated and may need a number of types of maintenance. Prices for common jobs are as follows:
| HVAC Unit Type | Cost | |
|---|---|---|
| Split | $1,922-$4,899 | |
| Hybrid Split | $3,894-$7,174 | |
| Heat Pump | $3,015-$30,723 | |
| Packaged Heating and Air | $252-$421 |
Repairing or replacing your HVAC system when needed is important, but can be costly. Fortunately, there are actions you can take to reduce gradual wear and tear on your system.
| Service | Cost | |
|---|---|---|
| Filter Replacement | $63-$168 | |
| Condensor Cleaning | $1,262-$3,785 | |
| Thermostat Repair | $84-$210 | |
| Ductwork Cleaning | $404-$1,009 |
Finding the right HVAC company is key for an easy installation or repair. Hiring an experienced, credentialed HVAC contractor gives you confidence your system can provide consistent heating and air conditioning year-round.
Contact at least three HVAC providers for quotes. Explain the issues and have technicians visit to inspect your system if possible. Compare the contractors' explanations, solutions, estimated costs, warranties, and timeframes. Avoid companies that pressure you or demand payment upfront.
When selecting an HVAC provider, choose one with technicians that have the proper training, licenses, and experience. HVAC contractors in all states need to obtain a Section 608 Technician Certification from the Environmental Protection Agency (EPA). This certification is mandatory for any individual who helps "maintain, service, repair or dispose of equipment that could release refrigerants into the atmosphere." Contractors must pass an exam (the type of exam depends on what kind of equipment they intend to work with) to be certified by the EPA. All other licensing requirements are handled at the state level.
HVAC contractors in Florida must be registered or certified with the Department of Business and Professional Regulation. Certified HVAC contractors must have four years of experience, pass an exam, and carry HVAC business insurance. Registered HVAC contractors may only work in one specific city, and the local government sets licensing requirements. You should also look at reviews and complaints on sites like Google Reviews, the Better Business Bureau (BBB), and Yelp. Choose a company with positive reviews and testimonials about fantastic customer experiences.
Always make sure you understand what a company’s process is like. When HVAC repairs are needed, ask your provider to list which parts require replacement and explain why. Confirm that your technician will clean and test the full system after finishing the work to guarantee proper operation. When replacing your HVAC system, ask the contractor to provide details on the new estimated installation time, features, brand, energy efficiency, and model. Before signing a contract, make sure you understand how your provider will properly size the new unit for your home and what the cost will be.
Trustworthy HVAC companies stand behind their services with warranties. Compare warranties from different companies, keeping in mind that broader coverage is better. Look for the provider that offers the most coverage for a reasonable price.
Get written quotes before starting any HVAC work. The quote should cover costs for both labor and materials. Read all terms carefully before signing.
You should have your HVAC system inspected approximately twice yearly. At the time of the inspection, your technician will tell you what services are required. You should also schedule an inspection if you start noticing issues such as leaks, strange noises, or unusual smells. If your system has ductwork, you should have it inspected every few years.
Normally, you should have your HVAC system inspected in the spring and fall, as technicians tend to be less busy at these times. This also helps get your system ready for the summer and winter, when it typically sees the most use.
You can save energy during the summer by reducing the amount of power your HVAC system uses to keep your home cool. Set your thermostat as close to the outside temperature as you comfortably can, and try to avoid making drastic changes in temperature all at once. Keep your roof in good shape and seal any door or window leaks to avoid letting cool air escape. Similarly, ensure that your attic is well ventilated to avoid trapping excess heat in your home.
It takes between one and three days to have your HVAC system installed or replaced. If you only need an air conditioning unit or a furnace, this can take anywhere from a few hours up to two days. This timeline will be affected by the size of your house, the accessibility of your system, and any new issues your technician uncovers.
For a 2,000-square-foot home, look for a furnace that's between 50,000 and 80,000 BTUs (British thermal units). In Key Largo, you may be able to make do with a furnace on the lower end of this range.
For a 2,000-square-foot home, you'll also want to look for an air conditioning unit with between 2.5 and 5 tons of capacity. In Key Largo, you'll likely want a unit on the higher end of this range. Typically, if your home is over 1,000 square feet, central air will be more effective than window air conditioning units.
Your HVAC company might offer financing options via a third-party lender, or you may choose to obtain your own loan. It's smart to discuss payment options with a financial advisor and your HVAC company to make sure that you find the best option for you.
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