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Serving Charleston, SC with quality HVAC service, maintenance and installation since 1993. When it comes to quality heating and air conditioning service, you can rely on Terrace for all of your HVAC needs. Call Terrace today or schedule service below.

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Delivering quality at home comfort to the low-country since 1993.

Charleston, SC HVAC Service & Installation

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Looking for reliable heating and air services in Charleston, SC? Look no further than Terrace Heating and Air. With over 30 years of experience serving the Charleston community, Terrace Heating and Air has established a reputation for excellence and customer satisfaction. Our team of skilled technicians is dedicated to providing top-quality HVAC services, including installation, repair, and maintenance, tailored to meet your specific needs. Whether you need a new heating system installed or your air conditioner repaired, you can trust Terrace Heating and Air to deliver prompt and professional service. Contact us today to schedule an appointment and experience the difference for yourself.

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Looking to get a second opinion on replacing your failing AC system? Energy efficient equipment and quality work always. Click the button below to get started with scheduling your free replacement estimate.

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Whether you are wanting to finance a new system or repair work to your heating and air, our financing options are a great way to turn your system cost to a month to month payment.

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Bringing comfort when you need it most in Charleston, SC.

Why choose us for your HVAC needs?

Family owned and operated since 1993.

Award winning service and HVAC equipment.

24/7 heating and air conditioning service.

Our customers comfort is our business

When it comes to choosing the right contractor for your at-home comfort in Charleston, SC, you can rely on the Customer Care certified technicians and service experts at Terrace. With a legacy dating back to 1972, Terrace has been committed to delivering outstanding HVAC comfort and service to the community.

Bringing comfort when you need it most in Charleston, SC.

24/7 HVAC Service & Installation

Terrace Heating and Air is your go-to contractor for all your heating and air conditioning needs, providing round-the-clock service 24 hours a day, 7 days a week. Our dedicated team of highly skilled and experienced technicians is committed to ensuring that your comfort is always a top priority here in Charleston, SC. Trust us to deliver reliable and efficient HVAC services that you can count on, no matter the time of day or night.

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American Standard Heating & Air Conditioning equipment provides energy efficient and reliable comfort. Learn more about our HVAC equipment and how it can benefit your home in Charleston, SC and surrounding areas.

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Mitsubishi ductless mini-splits are great energy efficient solutions that allow you to add on more conditioned air for your sun room, garage or your entire home. Learn more about the benefits of ductless HVAC equipment.

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Our Blog

Enhancing Indoor Air Quality: Tips for Charleston Homeowners

September 15, 2025

At Terrace Heating & Air, we understand that Charleston's unique climate can impact your home's indoor air quality. Between high humidity, seasonal allergens, and occasional airborne pollutants, the air inside your home can be less clean than you think. Breathing cleaner air isn’t just about comfort—it’s about protecting your health and the well-being of your family. Here are some practical tips to help you improve indoor air quality and maintain a healthier home environment. 1. Invest in a Quality Air Purifier Air purifiers with HEPA filters are highly effective at capturing airborne particles such as dust, pollen, pet dander, and even some bacteria. For maximum benefit, place them in high-traffic areas or rooms where family members spend the most time. Consider models that also reduce odors and VOCs for a fresher home environment. 2. Maintain Your HVAC System Regularly Your HVAC system plays a critical role in circulating and filtering air throughout your home. Regular maintenance—including cleaning ducts, replacing filters, and inspecting for any issues—ensures your system is running efficiently and helps prevent contaminants from circulating. Scheduling annual inspections with professionals can save you headaches down the line and keep your indoor air clean. 3. Control Humidity Levels Charleston’s humid climate can encourage mold, mildew, and dust mites. Using dehumidifiers in damp areas like basements, bathrooms, or laundry rooms helps maintain optimal humidity levels and prevents the growth of these allergens. Proper humidity control also helps preserve wood floors, furniture, and other household materials. 4. Choose Low-VOC Products Volatile organic compounds (VOCs) from paints, adhesives, furniture, and cleaning products can negatively impact indoor air quality. When redecorating or renovating, choose low-VOC or VOC-free products to minimize harmful emissions in your home. 5. Ensure Proper Ventilation Good airflow is essential for removing indoor pollutants. Open windows whenever the weather allows and make sure exhaust fans in kitchens and bathrooms are functioning properly. Proper ventilation not only improves air quality but also helps regulate temperature and humidity. 6. Incorporate Indoor Plants Certain indoor plants, like spider plants, peace lilies, and snake plants, can naturally filter toxins from the air while adding beauty to your home. While they shouldn’t replace proper ventilation or filtration, they can complement your overall air quality strategy. By implementing these strategies, Charleston homeowners can breathe easier, reduce allergens, and create a more comfortable living space year-round. At Terrace Heating & Air, we’re committed to helping you maintain a healthy home. Contact us today for professional HVAC maintenance , system upgrades , or additional advice on keeping your indoor air clean and fresh.

Is Your AC Costing You More Than It Should? Signs of Inefficiency

August 14, 2025

When summer hits Charleston, your air conditioner works hard to keep your home cool and comfortable. But what if it’s working harder than it needs to—costing you extra money every month? An inefficient AC doesn’t just drain your wallet; it can also shorten the lifespan of your system and leave you sweating on the hottest days. At Terrace Heating & Air, we want to help you spot the warning signs before small issues turn into big expenses. Here are some clear indicators your AC might be costing you more than it should. 1. Your Energy Bills Keep Rising If your monthly energy bills are creeping up without a change in usage, your AC could be to blame. Dirty filters, worn-out parts, or poor airflow can force your system to run longer and use more electricity to achieve the same results. Pro Tip: Compare this year’s summer bills to last year’s. If there’s a big jump, it’s worth getting your system checked. 2. Uneven Cooling Throughout Your Home Are some rooms freezing while others feel like a sauna? This could be a sign of duct leaks, inadequate insulation, or an AC unit that’s struggling to keep up. Uneven cooling often means wasted energy and an overworked system. 3. The AC Runs Constantly While your AC will naturally run more during Charleston’s heat waves, it shouldn’t be running non-stop. Constant operation often points to an undersized unit, refrigerant leaks, or mechanical issues that make it harder for your system to reach your set temperature. 4. Weak Airflow If you notice reduced airflow from your vents, your system could be dealing with clogged filters, duct blockages, or a failing blower motor. Weak airflow forces your AC to work overtime, driving up costs. 5. Strange Noises or Smells Banging, grinding, or squealing noises signal possible mechanical problems, while musty or burning odors could indicate mold growth or electrical issues. Ignoring these warning signs can lead to costly breakdowns—and higher energy bills in the meantime. 6. Your AC is Over 10–15 Years Old Older systems naturally lose efficiency over time. Even with regular maintenance, an older AC may require more energy to cool your home compared to a newer, high-efficiency model. How to Lower Costs and Improve Efficiency Schedule Regular Maintenance: Annual tune-ups keep your system running at peak performance. Change Filters Monthly: Clean filters improve airflow and reduce strain on your AC. Seal Duct Leaks: Prevent cooled air from escaping before it reaches your rooms. Consider an Upgrade: Newer systems can dramatically cut energy usage and costs. Don’t Let Inefficiency Drain Your Wallet If your AC is showing any of these signs, it’s time to call the experts. Terrace Heating & Air proudly serves Charleston and the surrounding Lowcountry with professional maintenance, repairs, and energy-efficient upgrades. 📞 Call us today at 843-762-3639 or schedule your service online to make sure your AC is cooling efficiently—without costing you more than it should.

The Most Common AC Repairs We See in Charleston Summers

July 16, 2025

When summer hits hard in Charleston, your air conditioner becomes one of the most important systems in your home. But with the extreme heat, heavy humidity, and salt air, your AC system is working overtime—and that can lead to problems. At Terrace Heating & Air, we’ve helped hundreds of Lowcountry homeowners stay cool, and we’ve noticed some common issues that tend to pop up every summer. If your AC is struggling, here’s what might be going on—and how we can help. 1. Refrigerant Leaks Refrigerant is what cools the air inside your home, and when it leaks, your system can’t do its job properly. Charleston’s salty coastal air can cause corrosion in copper lines, making leaks more likely. Signs of a refrigerant issue: Warm air blowing from vents Longer run times Hissing or bubbling sounds Good news: Our techs can find and fix the leak, recharge your system, and help prevent future issues. 2. Frozen Evaporator Coils It might sound strange, but frozen coils are a common summer problem. Dirty air filters, restricted airflow, or low refrigerant can cause ice to build up, especially in Charleston’s high-humidity environment. What you’ll notice: Weak airflow AC running but not cooling Water pooling near the indoor unit Tip: Changing your air filter regularly and scheduling routine maintenance can help prevent this. 3. Clogged Drain Lines With our humidity levels, your AC pulls a lot of moisture out of the air—and that moisture drains through a condensate line. Over time, algae and gunk can build up and block the line, leading to water leaks and even system shutdowns. Watch for: Water around your unit Musty smells AC not turning on We can quickly clear the line and keep your system draining like it should. 4. Capacitor or Contactor Failure Your AC has electrical components that help it turn on and stay running. The extreme heat can cause these parts—especially capacitors and contactors—to overheat and fail. Signs something’s wrong: AC won’t start Clicking noises Unit turning on and off repeatedly Don’t try to fix electrical components yourself. Give us a call and we’ll get you back up and running safely. 5. Dirty or Blocked Condenser Units Your outdoor unit needs proper airflow to release heat from your home. When it gets clogged with dirt, grass clippings, or coastal debris, your system has to work harder—and may eventually shut down. Pro tip: Keep the area around your outdoor unit clear and schedule a summer cleaning to keep it efficient. Stay Cool with Fast, Local Service At Terrace Heating & Air, we’re proud to be Charleston’s go-to AC repair team. We know how brutal Lowcountry summers can be—and how important it is to have a system you can count on. Whether your AC is acting up or you just want to avoid a breakdown, we’re here to help with fast, honest, and professional service. 📞 Call us today at 843-762-3639 or Book Online to schedule your AC repair or maintenance.

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