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Last Updated: February 25, 2025
On average, 55% of energy use in American homes goes toward heating and cooling, according to the Department of Energy. You don't want to spend more than you need to on cooling and heating your Gantt home, so it's important to make sure all systems are working properly.
Our list of the top HVAC companies in Gantt can help you save money by getting your HVAC system repaired, installed or replaced for a fair price by a skilled worker.

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

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

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

Our Rating
User Rating
Free quotes
Services Offered

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

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

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

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

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

Our Rating
User Rating
Reliable customer support
Clear pricing policy
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:
If your home's HVAC system isn't working correctly or nearing the end of its lifespan, you might need an HVAC contractor for repairs or replacement. Look for these common signs that your system needs expert attention:
If you notice any of the above, have a local HVAC technician inspect your system. They can diagnose problems and recommend whether repair or full HVAC replacement is required.
HVAC installation or maintenance prices vary depending on your system. Common HVAC unit types include the following:
HVAC maintenance costs vary based on the specific services required. HVAC systems can be complex and potentially require several different services. Costs for typical jobs are as follows:
| HVAC Unit Type | Cost | |
|---|---|---|
| Split | $1,887-$4,811 | |
| Hybrid Split | $3,824-$7,044 | |
| Heat Pump | $2,961-$30,168 | |
| Packaged Heating and Air | $248-$413 |
HVAC upkeep is important, but can be pricey. Thankfully, homeowners can take steps to reduce wear and tear on their HVAC and lower future maintenance needs.
| Service | Cost | |
|---|---|---|
| Filter Replacement | $62-$165 | |
| Condensor Cleaning | $1,239-$3,716 | |
| Thermostat Repair | $83-$206 | |
| Ductwork Cleaning | $396-$991 |
Knowing what makes a trustworthy HVAC company is crucial for a successful installation or repair. An experienced, credentialed HVAC contractor gives you confidence your system can provide consistent heating and air conditioning year-round.
Contact at least three HVAC companies 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 contractors that pressure you or demand payment upfront.
When hiring an HVAC provider, choose one with technicians that have the proper training, licenses, and experience. HVAC contractors in all states must obtain a Section 608 Technician Certification from the Environmental Protection Agency (EPA). This certification is required 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 South Carolina are required to be licensed as mechanical contractors through the South Carolina Department of Labor, Licensing and Regulation Contractor's Licensing Board. Contractors can have multiple specialities, such as Refrigeration, Electrical, Air Conditioning, Plumbing, or Heating, depending on what's required for a specific project. Contractors must have one year of work experience and pass an exam to obtain a license. Your city or county may have additional requirements. Reviewing feedback on the Better Business Bureau (BBB), Google Reviews, Yelp, and similar sites can help your decision. Choose a provider with great reviews and reports of positive customer experiences.
Always make sure you understand what a company’s process looks like. When getting HVAC repairs, ask your provider to specify which parts need replacement and explain why. Confirm that your technician will clean and test the full system at the end of the job to ensure proper operation. When replacing your HVAC system, ask the contractor to describe the new energy efficiency, brand, features, estimated installation time, and model. Before signing a contract, ask how your provider plans to accurately size the unit for your home and how much it will cost.
Good HVAC companies offer warranties on service and equipment installations. The more complete the coverage, the better. Compare warranty details between providers and pick the one that offers the best protection for a fair price.
Always get HVAC bids in writing before work begins. A thorough quote covers costs for both materials and labor. Ensure that you understand all terms before signing the contract.
Typically, your HVAC system should be inspected twice a year. After an inspection, your technician will tell you what, if any, services are needed. You should also call a technician if you start to notice any issues, such as strange noises, leaks, or unusual smells. If you have ductwork in your home, it should be serviced every few years.
The best times to have your HVAC system inspected are the spring and fall. Technicians are less busy during these times, making it easier to get an appointment. 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 making it easier for your HVAC system to keep your home cool. Set your thermostat as close to the outside temperature as you can, and avoid making drastic changes in temperature all at once. Keep your roof well-maintained and seal any leaks around your windows and doors to help keep cool air in. Similarly, make sure your attic is well ventilated to avoid trapping excess heat in your home.
Generally, HVAC installation or replacement takes between one and three days for the entire system. Installing or replacing a furnace or air conditioning unit takes anywhere from about half a day up to two days. The exact amount of time will be based on things like how large your home is, how easily accessible different sections are, and whether your technician finds any problems.
For a 2,000-square-foot home, look for a furnace that's between 50,000 and 80,000 BTUs (British thermal units). In Gantt, 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 an air conditioning unit with around 2.5 to 5 tons of capacity. In Gantt, you'll likely want a unit on the higher end of this range. Usually, if your home is over 1,000 square feet, central air will be more effective than window air conditioning units.
Your HVAC company may offer financing options through a third-party lender, or you might be able 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're choosing the best option for you.
There are several ways you can make your HVAC system more energy-efficient:
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