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Last Updated: February 25, 2025
On average, 55% of the energy used in American homes is for heating and cooling, according to the U.S. Department of Energy. In Mount Pleasant, you're likely looking to reduce this energy expense and save money.
Our list of Mount Pleasant's top HVAC companies can help you get your system into top shape, allowing you to keep comfortable while saving money.

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

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

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

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

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

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

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

Our Rating
User Rating
Reliable customer support
Free quotes
Prompt service delivery
Informative resources
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 getting old, you may need to hire an HVAC contractor for maintenance or replacement. Look for these common signs that your system requires expert attention:
Schedule an inspection if you notice any of these problems. A local technician can inspect your system, detect problems, and decide whether you need repairs or a new HVAC unit.
What you pay for HVAC installation or maintenance is determined by your system type. Common HVAC unit styles include the following:
HVAC maintenance prices vary based on the work needed. HVAC systems are complex and may need multiple types of maintenance. Prices for common jobs are as follows:
| HVAC Unit Type | Cost | |
|---|---|---|
| Split | $1,920-$4,894 | |
| Hybrid Split | $3,890-$7,167 | |
| Heat Pump | $3,012-$30,694 | |
| Packaged Heating and Air | $252-$420 |
It's important to repair or replace your HVAC system when it's broken, but it can also be expensive. Thankfully, there are steps you can take to slow the wear and tear on your HVAC.
| Service | Cost | |
|---|---|---|
| Filter Replacement | $63-$168 | |
| Condensor Cleaning | $1,260-$3,781 | |
| Thermostat Repair | $84-$210 | |
| Ductwork Cleaning | $403-$1,008 |
Knowing what to look for in an HVAC company is important for a successful project. Look for an experienced, licensed contractor that can give you peace of mind and make sure your system provides reliable heating and air conditioning for your home.
Contact at least three HVAC providers for quotes. Explain your issues and schedule an in-person inspection if possible. Compare providers' diagnoses, suggested repairs, estimated costs, timeframes, and warranties. Avoid providers that pressure you or demand upfront payment.
It's important to choose an HVAC company that employs technicians with the proper qualifications and expertise. In all states, HVAC contractors have federal requirements set by the Environmental Protection Agency (EPA). To obtain the EPA Section 608 Technician Certification, an individual must pass an exam (the type of exam depends on what kind of equipment they plan to work with). Section 608 certification is required for all technicians who "maintain, service, repair or dispose of equipment that could release refrigerants into the atmosphere." All other licensing requirements are handled by the state.
HVAC contractors in South Carolina must 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 Plumbing, Air Conditioning, Electrical, Heating, or Refrigeration, depending on what's needed for a specific project. Contractors must have one year of work experience and must pass an exam to be licensed. Individual cities or counties may have additional requirements. Reviewing feedback on the Better Business Bureau (BBB), Google Reviews, Yelp, and similar sites can help your decision as well. Choose a provider with stellar reviews and reports of positive experiences from customers.
Always make sure you know what a company’s process is like. When HVAC repairs are needed, ask your provider to explain which parts require replacement and why. Confirm that your technician will clean and test the full system at the end of the job to guarantee proper operation. When replacing your HVAC, ask the provider to explain the new estimated installation time, brand, model, features, and energy efficiency. Before work starts, make sure you understand how your provider will determine the right system size for your home and what the price will be.
Reliable HVAC companies provide warranties for their work. The broader the coverage, the better, so make sure to compare warranties between providers. Choose the one that gives you the most coverage at a fair cost.
Always get quotes for HVAC service in writing before work begins. A detailed quote should cover both materials and labor. Make sure you understand all terms before signing a contract.
You should have your HVAC system inspected about twice annually. At the time of the inspection, your technician will inform you what services are required. You should also call a technician if you start noticing issues such as unusual smells, strange noises, or leaks. If your home has ductwork, you should have it inspected every few years.
Normally, it's a good idea to have your HVAC system inspected in the spring and fall, as these times tend to be less busy. 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 comfortably can, and try to avoid making drastic changes in temperature all at once. Keep your roof in good shape and seal any leaks around your windows and doors to avoid letting cool air escape. Similarly, make sure your attic is well ventilated to avoid trapping excess heat in your home.
It takes roughly 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 can take between half a day and two days. This timeline can be determined by the size of your house, the accessibility of your system, and any new issues your technician runs into.
For a 2,000-square-foot home, you need around 2.5 to 5 tons of air conditioning capacity. In Mount Pleasant, you'll probably want to purchase a unit on the higher end of this range. For a house over 1,000 square feet, central air will usually be more effective for cooling than window units.
For a 2,000-square-foot home, you'll also look for a furnace that is between 50,000 and 80,000 BTUs (British thermal units). In Mount Pleasant, you might be able to make do with a lower-capacity furnace.
There are a number of ways you can make your HVAC system more energy-efficient:
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