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    Verified heating and air conditioning services reviews

Top-Rated Heating and air conditioning pros in Saint Charles - Updated Nov 2026

Avatar for HVAC Service Corporation
HVAC Service Corporation
New to Angi
Electric Furnace / Forced Air Heating System - Install - For BusinessElectric Furnace / Forced Air Heating System - Repair - For BusinessGas Furnace / Forced Air Heating System - Install - For Business+5 more

Serving Saint Charles, SC and surrounding areas

Approved

In business since 2007

Free estimates

Credit card accepted

We have extensive experience providing design, construction, installation and on going maintenance for all of our service lines across a diverse spectrum of industries and asset types. Founded over 75 years ago, HVAC Service Corporation has been a cornerstone in the Carolinas for reliable and efficient HVAC solutions. Our commitment to quality service and customer satisfaction has made us a trusted name in the industry. We are licensed and insured in North Carolina, South Carolina, and parts of Georgia, with our headquarters located in Gastonia, NC. Our mission is to provide top-notch commercial heating and air conditioning services that meet the unique needs of our clients.

Chiller Job
Response time3 hrs
Response rate94%
Avatar for Top Notch Supreme Cleaning Service
Top Notch Supreme Cleaning Service
New to Angi
Air Ducts & Vents - Clean

Serving Saint Charles, SC and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

Reliable, detail-oriented cleaning services for residential and commercial spaces. We specialize in new construction, move-in/move-out, and Airbnb turnover cleanings—delivering spotless results you can see and feel every time. We don’t just clean—we restore, refresh, and reset your space.

Avatar for One Call
One Call
5.0(
2
)
Air Ducts & Vents - Clean

Serving Saint Charles, SC and surrounding areas

Approved

Free estimates

Small jobs welcome

Offers commercial services

Hi,\n\n My name is Hart Davidson and I am the owner of One Call. At One Call we do it all. I specialize in landscaping, painting, and pressure washing. Best price guaranteed. I have around 15 years of experience in this field.

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29 neighbors recently requested a quote
Standing by grace cleaning services
New to Angi
Air Ducts & Vents - Clean

Serving Saint Charles, SC and surrounding areas

Approved

Welcome to Standing By Grace Cleaning Services!\n\nHello, my name is Rhonda, and I’m the proud owner of Standing By Grace Cleaning Services. I have seven years of professional cleaning experience, and cleaning is more than just a job to me — it’s something I truly enjoy and take pride in.\n\nI love helping people feel comfortable and relaxed in a clean, fresh, and welcoming home. I believe every home deserves care, attention to detail, and a little extra love. My goal is to provide dependable, quality cleaning services while treating every home with the same respect and care I would give my own.\n\nWhether you need help keeping up with your everyday cleaning or want your home to feel fresh and spotless, I’m here to help!\n\nAt Standing By Grace Cleaning Services, my motto is Professional cleaning with care, quality, and grace. Your home deserves the best, and I look forward to helping make your life a little easier! Thanks for considering my small business.

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Heating and Air Conditioning FAQs, answered by experts

Some of the signs of HVAC issues include rising energy bills, rooms not cooling or heating properly, loud noises when in operation, and signs of condensation. To illustrate, if you’re wondering how to stop condensation on air vents, you’ll need to have your HVAC inspected. 

You can run an HRV with air conditioning—assuming that you decide to keep the system on during the summer. The HRV will continue to bring in fresh outdoor air, which will then flow into your AC unit and cool down your home. It will also keep moving the stuffy indoor air out of your house.

When your HVAC technician mentions recharging your home AC unit, they’re referring to the process of topping off the unit with refrigerant, so the levels are properly maintained and pressurized. Normally, a properly functioning AC unit doesn’t need additional refrigerant, but AC units can develop leaks or other problems that decrease the amount of refrigerant needed.

While many states do not have specific licensing requirements for HVAC companies, your local city or county might. It's always a good idea to check local requirements online and use a tool like Angi’s contractor license lookup to confirm that the company you’re considering is licensed. Regardless of licensing, you should always ensure the company you hire is fully insured to avoid potential lawsuits if a technician is injured on your property. Additionally, it is recommended to check if the company holds third-party certifications, such as North American Technician Excellence (NATE) certification or R-410A certification, which qualifies them to work with HVAC refrigerants.

A home AC unit provides anywhere from one-half to five tons of cooling and requires approximately two to four pounds of refrigerant per ton of cooling. At approximately five to 10 minutes to fill one pound of refrigerant, a home that requires three tons of cooling will take about six to 12 pounds of refrigerant and approximately 30 minutes to two hours to completely recharge the unit.

The Saint Charles, SC homeowners’ guide to heating and air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.