10 Best HVAC Companies in Mount Pleasant, SC

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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.

Top 10 Best HVAC Companies in Mount Pleasant

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Olde Towne Heating & Air, LLC

Olde Towne Heating & Air, LLC Logo

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443 Long Point Rd Suite F, Mt Pleasant, SC 29464 (843) 856-1433 oldetowneheatingandair.com

Reliable customer support

Informative resources

Clear pricing policy

Services Offered

Ac repair
Emergency services
Furnace repair
Boiler installation
Filtration
Maintenance
Ductless
Ventilation
Furnace installation
Ac installation
Zoning systems
Indoor air quality

TemperaturePro Charleston

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3516 S Live Oak Dr, Moncks Corner, SC 29461 (843) 603-8210 temperatureprocharleston.com

Prompt service delivery

Free quote

Clear pricing policy

Informative resources

Reliable customer support

Services Offered

Furnace installation
Emergency services
Ductless
Ac repair
Inspection
Maintenance
Indoor air quality
Ac installation
Ventilation
Duct cleaning

Atlantis Heating & Air Conditioning

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202 Carolina Ave, Moncks Corner, SC 29461 (843) 761-0111 atlantisheatingandair.com

Free quote

Reliable customer support

Prompt service delivery

Clear pricing policy

Services Offered

Maintenance
Ventilation
Ductless
Ac installation
Emergency services
Furnace repair
Ac repair
Inspection
Furnace installation
Indoor air quality

Burke HVAC Services, Inc.

Burke HVAC Services, Inc. Logo

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110 W Ashley Ave, Folly Beach, SC 29439 (843) 568-7336 burkeservicesinc.com

Informative resources

Clear pricing policy

Reliable customer support

Free quotes

Services Offered

Emergency services
Furnace repair
Furnace installation
Maintenance
Duct cleaning
Ventilation
Inspection
Ductless
Filtration
Ac installation
Indoor air quality
Ac repair

Holy City Heating & Air, LLC

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User Rating

238 E Bay St, Charleston, SC 29401 (843) 920-3944 holycityhvac.com

Clear pricing policy

Prompt service delivery

Reliable customer support

Informative resources

Free quotes

Services Offered

Ac repair
Indoor air quality
Ventilation
Maintenance
Ductless
Filtration
Furnace installation
Ac installation
Inspection

Max Mechanical Heating and Air

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User Rating

1550 Orange Grove Rd, Charleston, SC 29407 (843) 480-1098 maxairsc.com

Informative resources

Clear pricing policy

Reliable customer support

Services Offered

Furnace installation
Ac installation
Radiant heating
Maintenance
Duct cleaning
Emergency services
Ventilation
Indoor air quality
Inspection
Ductless

Acute Heating & Cooling

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1235 Boone Hill Rd Suite 1, Summerville, SC 29483 (843) 894-3557 acutehvac.com

Clear pricing policy

Informative resources

Free quotes

Reliable customer support

Prompt service delivery

Services Offered

Ductless
Maintenance
Indoor air quality
Filtration
Ac repair
Ac installation
Ventilation
Furnace installation
Emergency services

Morelli Heating & Air Conditioning Inc.

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2470 Faber Rd, North Charleston, SC 29405 (843) 554-8600 morelliair.com

Informative resources

Clear pricing policy

Prompt service delivery

Reliable customer support

Services Offered

Ac installation
Furnace installation
Boiler installation
Indoor air quality
Ductless
Emergency services
Inspection
Ventilation
Maintenance

Terrace Heating & Air

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1828 Elsey Dr, Charleston, SC 29407 (843) 762-3639 terraceair.com

Free quotes

Reliable customer support

Informative resources

Services Offered

Zoning systems
Inspection
Filtration
Ac installation
Furnace installation
Indoor air quality
Duct cleaning
Ductless
Maintenance

Coastal Air Solutions

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User Rating

409 S Live Oak Dr, Moncks Corner, SC 29461 (843) 482-0407 coastalairsolutions.net

Reliable customer support

Free quotes

Prompt service delivery

Informative resources

Services Offered

Inspection
Maintenance
Ac repair
Indoor air quality
Ductless
Ventilation
Emergency services
Furnace installation
Ac installation
Today's Homeowner Ranking Methodology

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:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

Signs You May Need HVAC Repair or Replacement

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:

  • Temperature control issues or thermostat malfunctions
  • Strange noises when turning on
  • Frequent breakdowns and need for repairs
  • Rust, corrosion, or cracking
  • Unusually high energy bills
  • Uneven heating/cooling or poor air circulation
  • Refrigerant leaks
  • An HVAC system that's over 15 years old

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.

Cost of HVAC Installation and Maintenance in Mount Pleasant

What you pay for HVAC installation or maintenance is determined by your system type. Common HVAC unit styles include the following:

  • Split or mini-split: If your home doesn't have the right ductwork for central heating or air, you probably have a split HVAC system. Split or mini-split systems consist of interior units that control the temperature in individual rooms, and that are all connected to an outdoor unit.
  • Hybrid split: A hybrid split HVAC system performs similarly to a standard split system, but has the capacity to draw on either gas or electricity for power.
  • Heat pump: Heat pumps work by transferring hot and cold air between your home and the outdoors. These systems don't create heat or air conditioning themselves, and are more effective in more moderate climates. They may not be as effective during Mount Pleasant's hot summers.
  • Packaged heating and air: Packaged HVAC systems work best in smaller homes. They consist of a single combined heating and air conditioning unit, commonly located in an attic or basement. This unit is typically small, cost-effective, and easy to maintain.

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 TypeCost
Split$1,920-$4,894
Hybrid Split$3,890-$7,167
Heat Pump$3,012-$30,694
Packaged Heating and Air$252-$420

Ways to Save Money on HVAC Costs

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.

  • Monitor for potential problems. Keeping an eye out for problems, for instance by routinely checking your thermostat and energy bills, helps you resolve them before they get too expensive.
  • Change the position of your blinds seasonally. Keeping your blinds closed in the summer helps block out passive solar heat. Keeping them open in the winter helps you take advantage of this same heat. Both of these measures help reduce the frequency with which you need to run your HVAC.
  • Change filters regularly. Switching out or cleaning your air filters every 1–3 months helps air flow smoothly through your HVAC system. You should also try to prevent dirt and debris from building up around the outdoor sections of your system.
  • Keep your system clean. Regularly cleaning condenser fan blades, ductwork, indoor evaporator coil, and grills helps your HVAC system run efficiently and lowers your risk of mold. The National Air Duct Cleaners Association recommends cleaning your system when it starts to look dirty.
ServiceCost
Filter Replacement$63-$168
Condensor Cleaning$1,260-$3,781
Thermostat Repair$84-$210
Ductwork Cleaning$403-$1,008

How To Choose a Local HVAC Company

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.

Compare Multiple Bids

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.

Check Credentials

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.

Understand Work Details

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.

Compare Warranties

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.

Get Quote in Writing

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.

Frequently Asked Questions About HVAC in Mount Pleasant, SC

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:

  • Keep ductwork clean, and clean or change your air filters on a regular basis.
  • Schedule regular inspections to take care of problems as they come up.
  • Keep your attic well-ventilated and make sure all doors and windows are well-sealed.
  • Install a smart thermostat. If you don't want to or can't buy one, try to keep the temperature indoors as close to the outside temperature as is comfortable.
  • When it comes time to replace any part of your system, explore Energy Star-certified or similar environmentally friendly options.

Other Mount Pleasant, SC Home Services

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