The Most Common AC Repairs We See in Charleston Summers

If your air conditioner is running but your home still feels hot and muggy, you’re not alone. Charleston’s high heat and coastal humidity can put a major strain on your cooling system—and one issue we see time and time again is the #1 reason your AC isn’t cooling properly: a dirty or clogged air filter. Why Your Air Filter Matters More Than You Think Your AC system relies on proper airflow to function efficiently. When your air filter gets clogged with dust, pollen, pet hair, or other debris, it blocks that airflow—making your system work harder while cooling less effectively. In Charleston, this problem is even more common during the summer months when: Pollen levels are high Pet shedding increases indoors Humidity causes filters to trap more moisture and debris AC systems are running almost nonstop A dirty filter doesn’t just reduce cooling—it can also cause your coils to freeze, reduce energy efficiency, and even shorten the life of your system. Signs Your Filter Is the Problem Not sure if your filter is the culprit? Here are a few red flags to watch for: Warm air blowing from vents Weak airflow in certain rooms Higher-than-usual energy bills AC running constantly but not reaching set temperature Increased indoor humidity How Often Should You Change It? In Charleston’s climate, we recommend checking your filter once a month during the peak cooling season (May through September). You may need to change it more frequently if: You have pets You live near construction or marsh areas You suffer from allergies Your AC runs constantly Don’t Let a Simple Fix Turn Into a Costly Repair At Terrace Heating & Air, we see it all the time—a customer calls us for what seems like a serious AC problem, and it turns out the solution is as easy as replacing the air filter. That’s why routine maintenance is key to keeping your system running efficiently all summer long. Need Help With Your Cooling System in Charleston? If your AC still isn’t cooling after changing the filter, there could be a more complex issue—like low refrigerant, dirty coils, or a failing compressor. The experts at Terrace Heating & Air are here to help with fast, friendly service across the Charleston area. Contact us today to schedule a service visit or sign up for a preventive maintenance plan—and keep your cool all summer long.

As Charleston’s spring temperatures start to rise, it’s the perfect time to make sure your air conditioning system is ready to handle the hot, humid summer ahead. At Terrace Heating & Air, we know how important a reliable and efficient AC system is for keeping your home cool and comfortable during those sticky Lowcountry months. A little spring maintenance now can prevent breakdowns later—and save you money on energy bills. Why Spring AC Maintenance Matters in Charleston Charleston’s summer humidity puts a lot of stress on your air conditioner. Without proper care, your system can lose efficiency, struggle to cool your home, or even fail when you need it most. Scheduling spring maintenance ensures your system is clean, tuned, and ready to keep up with the demands of a Charleston summer. Top Spring Maintenance Tips from Our Charleston HVAC Experts Here are a few simple but important steps to get your AC system in top shape: 1. Replace or Clean Air Filters Dirty filters reduce airflow and make your system work harder. We recommend changing your air filter at least every 1-3 months—especially in the spring when pollen levels are high in Charleston. 2. Check and Clean Your Outdoor Unit Leaves, dirt, and debris can block airflow to your outdoor condenser unit. Make sure the area around the unit is clear and gently hose off any buildup to improve efficiency. 3. Inspect Thermostat Settings Now’s a great time to test your thermostat and program it for energy savings. Consider upgrading to a smart thermostat for better control and efficiency during Charleston’s fluctuating spring and summer temps. 4. Listen for Strange Noises Unusual sounds like rattling, grinding, or squealing can signal loose parts or wear and tear. Don’t ignore them—addressing these early can help prevent costly repairs later. 5. Schedule a Professional AC Tune-Up The best way to ensure your system is ready for summer? Schedule a professional inspection and tune-up with Terrace Heating & Air. Our skilled Charleston HVAC technicians will check refrigerant levels, tighten electrical connections, clean coils, and ensure everything is operating at peak performance. Stay Cool All Summer with Terrace Heating & Air Don’t wait until the first heat wave hits—get ahead of the Charleston summer with a spring AC maintenance appointment. Regular maintenance not only keeps your system running efficiently but also extends its lifespan and reduces the risk of emergency repairs. Contact Terrace Heating & Air today to book your spring tune-up and make sure your air conditioner is ready to take on the summer heat! Check out our air conditioning service page to learn more about how we can keep you cool and comfortable this summer.

Charleston summers are no joke. Between the soaring temperatures and thick coastal humidity, your air conditioner in Charleston works hard to keep your home cool and comfortable. But if your system is struggling now, it may not make it through another Lowcountry summer without major repairs—or even total failure. At Terrace Heating & Air, we want to help you stay ahead of the heat. Here are some warning signs your AC unit might be on its last legs. 1. Weak or Warm Airflow If your vents are blowing warm air or the airflow feels weak no matter how low you set your thermostat, it’s a clear sign that something’s wrong. This could mean your air conditioning system is dealing with a failing compressor, low refrigerant, or just can’t keep up with Charleston’s extreme summer temperatures. 2. Strange Noises Hearing grinding, rattling, or banging? Those sounds aren’t normal. Your HVAC system should operate relatively quietly. Unusual noises can point to worn-out parts, loose components, or serious mechanical issues—often signs your air conditioner needs replacement. 3. High Energy Bills Has your electric bill in Charleston been creeping up lately? Older or inefficient air conditioning units work harder to keep your home cool. If your system is running constantly but your home still isn’t comfortable, it might be time for an HVAC upgrade. 4. Frequent Repairs Needing one repair every few years is normal. Needing multiple AC repairs in Charleston in a single season? That’s a red flag. Constant issues not only cost you money but also suggest your system is nearing the end of its life. 5. Uneven Cooling If some rooms feel like a sauna while others are freezing, you might have uneven cooling. That could mean your system is too old or too small—or that your ductwork is struggling. Either way, it’s time to have your Charleston air conditioning system inspected. 6. Your AC Is 10+ Years Old Most air conditioners in South Carolina last around 10–15 years, but Charleston’s heat and humidity can shorten that lifespan. If your system is 10 years or older and not keeping up, it’s probably time to consider a new AC installation. Don’t Get Caught in the Heat The last thing you want is for your air conditioner to break down during a Charleston summer. If you’ve noticed any of these signs, Terrace Heating & Air is here to help. We’ll inspect your system, walk you through your options, and make sure your home stays cool and comfortable. Check out our air conditioner product page to learn more about some of the energy efficient air conditioners we carry and install here at Terrace Heating & Air in Charleston, SC. Call us today at 843-762-3639 or schedule your appointment online for trusted AC service in Charleston, SC!

As we say goodbye to winter and welcome the warmer temperatures of spring, it’s the perfect time to prepare your HVAC system for the upcoming change in weather. In Charleston, we experience a unique blend of mild winters and hot, humid summers, making HVAC maintenance essential to ensure your home stays comfortable throughout the year. Here’s how you can get your HVAC system ready for Charleston’s spring weather. 1. Schedule a Professional Spring Maintenance Check Spring is the perfect time to schedule a professional maintenance appointment. HVAC systems that are well-maintained are more energy-efficient and last longer. A professional technician will inspect and clean the system, check refrigerant levels, and address any wear and tear that may have occurred during the winter months. By catching small issues early, you can avoid costly repairs down the road. 2. Change the Air Filter Air filters play a crucial role in maintaining air quality and system efficiency. Over time, filters become clogged with dust, dirt, and debris, making it harder for your system to circulate air effectively. Spring is a great time to change your air filter to ensure proper airflow and maintain a clean, healthy home environment. 3. Clean the Coils and Condenser Unit If you have an outdoor condenser unit, make sure it’s clear of debris, dirt, and leaves that may have accumulated over the winter. Clean the coils and check for any damage that could affect the system’s performance. Keeping the area around the unit clear will allow it to run more efficiently during the hot Charleston summer months. 4. Test the Thermostat As the weather warms up, you’ll rely more on your air conditioner. Test your thermostat to ensure it’s working properly. If your thermostat is outdated or malfunctioning, it could cause your HVAC system to work harder than necessary, leading to higher energy bills. Consider upgrading to a smart thermostat for improved control and energy savings. 5. Check for Air Leaks Springtime in Charleston can bring unpredictable weather, with sudden rainstorms or humidity spikes. Make sure your home is sealed properly by checking for drafts around doors, windows, and ducts. Sealing air leaks can prevent your HVAC system from overworking and help maintain a consistent indoor temperature. 6. Clear Drainage Lines As your HVAC system works harder to keep your home cool during the warmer months, condensation will build up. It’s important to check and clear your drainage lines to prevent clogs that could lead to water damage or system malfunctions. Clean and inspect the drainage lines regularly, especially after a heavy rainstorm. 7. Upgrade Your Insulation If your insulation isn’t up to par, your HVAC system may have to work harder to maintain the desired temperature. Spring is a great time to check your home’s insulation, particularly in attics, basements, and crawl spaces. Adequate insulation keeps cool air inside during the summer and helps regulate your home’s temperature more effectively. 8. Consider Upgrading Your System If your HVAC system is more than 10 years old, it may be time to think about an upgrade. Newer models are designed to be more energy-efficient, which can save you money in the long run. If you’re unsure about the condition of your current system, Terrace Heating & Air can help you assess its efficiency and provide recommendations. Explore our Air Conditioners and Heat Pumps pages to discover the energy-efficient heating and cooling systems we offer and install at Terrace Heating & Air! Conclusion Spring in Charleston is a time of renewal, and your HVAC system deserves the same attention. By following these simple steps, you can ensure your system runs efficiently and effectively, saving you money on energy bills while keeping your home comfortable throughout the warmer months. If you need assistance with any of these tasks or want to schedule your spring HVAC maintenance, contact Terrace Heating & Air today. Our expert team is here to help keep your system in top shape for the season ahead. Stay cool and comfortable with Terrace Heating & Air!

If you’ve noticed that your heat pump is blowing cold air instead of keeping your Charleston home warm, you’re not alone. Many homeowners experience this issue, especially during the cooler months. Before you panic, there are several possible reasons why your heat pump isn’t performing as expected. Terrace Heating & Air is here to help you troubleshoot the problem and get your home back to a comfortable temperature. 1. Your Heat Pump Is in Defrost Mode Heat pumps work by transferring heat from the outside air into your home. When temperatures drop, frost can build up on the outdoor unit, triggering the system’s defrost mode. During this cycle, your heat pump may temporarily blow cooler air inside while it works to melt the ice outside. If this happens, give it a few minutes to complete the cycle and return to normal heating mode. 2. The Thermostat Is Set Incorrectly Sometimes, the issue is as simple as an incorrect thermostat setting. Double-check that your thermostat is set to “heat” rather than “cool” or “auto.” Also, make sure the temperature is set higher than the current room temperature. If your thermostat has malfunctioned, it may need recalibration or replacement. 3. Refrigerant Levels Are Low Your heat pump relies on refrigerant to transfer heat effectively. If there’s a refrigerant leak or the levels are too low, the system won’t be able to generate warm air efficiently. A professional HVAC technician from Terrace Heating & Air can check for leaks and recharge the refrigerant if needed. 4. Dirty Air Filters or Coils A clogged air filter or dirty coils can restrict airflow, making it harder for your heat pump to distribute warm air throughout your home. Regular maintenance, including changing air filters and cleaning the indoor and outdoor coils, can help prevent this issue. 5. Outdoor Temperature Is Too Low Heat pumps are most efficient in moderate temperatures, but they can struggle when the temperature drops too low. If Charleston experiences an unusually cold spell, your heat pump may need extra support from a supplemental heating system, like electric resistance heating or a furnace. 6. Ductwork Issues Leaky or poorly insulated ductwork can cause heat loss before the warm air even reaches your living space. If some rooms feel colder than others, it may be time to have your ducts inspected and sealed to improve efficiency. 7. Mechanical Issues or Component Failure If none of the above issues seem to be the culprit, there could be a mechanical problem with the heat pump itself. A faulty compressor, reversing valve, or another internal component may need repair or replacement. Professional diagnosis is essential to pinpoint and fix these issues effectively. When to Call a Professional While some troubleshooting steps, like checking your thermostat and changing filters, can be done yourself, other problems require expert attention. If your heat pump continues to blow cold air, makes strange noises, or isn’t heating your home properly, it’s time to call in the professionals at Terrace Heating & Air. Our experienced technicians will diagnose the issue and provide the necessary repairs to restore your comfort. Schedule Your Heat Pump Service Today Don’t let a malfunctioning heat pump leave you in the cold. Contact Terrace Heating & Air today for expert heat pump repair and maintenance services in Charleston, SC. Call us or schedule an appointment online to keep your home warm and comfortable all winter long!

Winter in Charleston may not bring the freezing temperatures of northern states, but staying warm during the colder months can still be a challenge — and it can come with higher energy bills. At Terrace Heating & Air, we understand the importance of keeping your home comfortable without breaking the bank. Here are some practical tips to save money on heating bills this winter while staying cozy in Charleston's unique climate. 1. Schedule a Professional HVAC Tune-Up Your heating system works hard to keep you comfortable, and regular maintenance ensures it runs efficiently. A professional tune-up can identify and fix potential issues, improve efficiency, and prevent costly breakdowns. At Terrace Heating & Air, we’re here to keep your HVAC system in peak condition. 2. Seal Drafts and Insulate Drafty windows and doors can let warm air escape, forcing your heater to work overtime. Use weather stripping or caulking to seal gaps around windows and doors. Adding insulation to your attic or crawl space can also prevent heat loss and lower your energy bills. 3. Use a Programmable Thermostat A programmable thermostat allows you to set specific temperatures for different times of the day. Lower the temperature while you’re asleep or away from home to save energy. Smart thermostats even let you adjust settings remotely, giving you more control over your heating costs. Check out some of the smart thermostats we carry and install today! 4. Take Advantage of Charleston’s Sunlight Charleston’s sunny winter days can help naturally heat your home. Open your curtains or blinds during the day to let the sunlight in, and close them at night to keep the warmth inside. 5. Replace or Clean Air Filters Dirty air filters reduce your HVAC system’s efficiency, making it work harder to heat your home. Replace or clean your filters every 1-3 months to ensure proper airflow and system performance. 6. Use Ceiling Fans Wisely Ceiling fans aren’t just for summer! Switch them to rotate clockwise during the winter at a low speed. This helps push warm air that rises back down into the living space, improving comfort and reducing heating costs. 7. Bundle Up and Use Space Heaters Strategically Instead of heating the entire house, focus on the rooms you use most. A space heater can keep small areas warm and comfortable without raising the thermostat for your whole home. Remember to use space heaters safely and follow manufacturer guidelines. 8. Upgrade Your Heating System If your heating system is more than 10-15 years old, it might be time for an upgrade. Modern systems are significantly more energy-efficient, which can lead to long-term savings. Our team at Terrace Heating & Air can help you find the right energy-efficient system for your home. 9. Take Advantage of Energy Audits An energy audit can identify areas where your home is losing heat and suggest improvements. Our experts can evaluate your home’s heating efficiency and recommend cost-saving solutions tailored to Charleston’s climate. Conclusion Saving money on heating bills this winter doesn’t have to mean sacrificing comfort. By following these tips and relying on Terrace Heating & Air for professional HVAC services, you can keep your home warm and your energy costs under control. If you’re ready to schedule a tune-up or explore energy-efficient heating solutions, contact us today! Let us help you stay cozy and save money this winter in Charleston.

Living in Charleston, SC, means enjoying mild winters compared to other parts of the country. However, when temperatures drop, having a reliable heating system is essential for keeping your home comfortable. At Terrace Heating & Air, we’ve helped countless Charleston homeowners address common heating problems, and we’re here to help you do the same. Below, we’ll explore some of the most frequent heating issues in Charleston homes and how to prevent them. 1. Uneven Heating Charleston’s older homes often struggle with uneven heating, leaving some rooms feeling too warm while others remain chilly. This issue can stem from poor insulation, leaky ducts, or an improperly sized HVAC system. Prevention Tips: Schedule a professional energy audit to identify insulation or ductwork issues. Seal and insulate your ducts. Ensure your HVAC system is properly sized for your home. 2. Short Cycling Short cycling occurs when your heating system turns on and off frequently without completing a full heating cycle. This not only makes your home less comfortable but also increases energy bills and wear on your system. Prevention Tips: Replace dirty or clogged air filters regularly. Schedule annual maintenance to ensure your system runs efficiently. Consult a professional if your system is oversized or undersized for your home. 3. Pilot Light or Ignition Problems Gas furnaces can experience issues with their pilot light or electronic ignition. If these components malfunction, your furnace may struggle to produce heat. Prevention Tips: Keep the area around your furnace clean and free of debris. Schedule regular inspections to identify and resolve ignition issues early. Contact a professional if you notice persistent problems with your pilot light or ignition system. 4. Thermostat Malfunctions A malfunctioning thermostat can cause your heating system to run inefficiently, leading to inconsistent temperatures throughout your home. Prevention Tips: Upgrade to a programmable or smart thermostat for better control. Replace batteries in your thermostat regularly. Have a technician inspect and calibrate your thermostat during routine maintenance. 5. Dirty or Clogged Filters One of the most common heating issues is dirty or clogged air filters. This can restrict airflow, reduce efficiency, and strain your system. Prevention Tips: Check and replace your air filters every 1-3 months. Use high-quality filters suited to your system’s requirements. 6. Wear and Tear on Components Over time, components of your heating system can wear down, leading to breakdowns or reduced performance. This is especially common in systems that are not regularly maintained. Prevention Tips: Schedule annual maintenance to identify and address worn components. Address minor issues promptly to avoid larger, costlier repairs. 7. Ductwork Leaks Leaky ducts can cause heated air to escape before it reaches your living spaces, making your system work harder to maintain a comfortable temperature. Prevention Tips: Have your ductwork inspected for leaks or damage. Seal leaks with professional-grade materials. Insulate ducts in unconditioned spaces. 8. Heat Pump Problems Heat pumps are popular in Charleston due to their efficiency, but they can experience issues like frozen coils or refrigerant leaks, especially during colder months. Prevention Tips: Keep the outdoor unit clear of debris and ice. Schedule regular maintenance to check for refrigerant leaks and clean coils. Ensure proper airflow by maintaining clean filters and clear vents. Trust Terrace Heating & Air for Your Heating Needs No one wants to deal with heating issues during Charleston’s chilly winter nights. By staying proactive and scheduling regular maintenance, you can prevent many common problems and keep your system running smoothly. At Terrace Heating & Air, we’re dedicated to helping Charleston homeowners stay warm and comfortable year-round. If you’re experiencing heating issues or want to schedule preventative maintenance, contact us today!

As the cool weather of winter begins to creep in, now is the perfect time to make sure your HVAC system is ready to handle the seasonal change. With the harsh winter chill right around the corner, the last thing you want is for your heating system to break down when you need it most. Before the temperatures drop, take the time to inspect your HVAC system for warning signs that it may need a repair. Here are some of the most common indicators that your system may require attention: 1. Unusual Noises If your heating system starts making strange noises such as banging, grinding, or squealing, it’s a sign that something is wrong. These sounds could indicate loose or worn parts, a failing motor, or issues with your ductwork. Don’t ignore these noises, as they often get worse over time and could lead to a complete system failure. 2. Inconsistent Heating Does it feel like certain rooms in your home are colder than others? If your system is only heating part of your home or providing uneven warmth, it could be an issue with your thermostat, ductwork, or even a malfunctioning component within the HVAC unit itself. A professional technician can diagnose the cause and restore consistent comfort throughout your space. 3. Higher Energy Bills If you notice a sudden increase in your heating bills without an increase in usage, it may be due to an inefficient system. An HVAC system that is struggling to function properly has to work harder, using more energy to maintain the desired temperature. This is a sign that something in the system may need repair, such as a clogged filter, malfunctioning thermostat, or aging components. 4. Weak Airflow A noticeable drop in airflow from your vents is another sign that your HVAC system may need repairs. Weak airflow can occur for a variety of reasons, such as dirty filters, clogged ducts, or a malfunctioning blower motor. When the airflow is weak, your home won’t heat properly, and your system will have to work overtime to meet the desired temperature, leading to higher energy bills and further damage. 5. Frequent Cycling If your system is frequently turning on and off, it may be a sign of an underlying issue, such as an electrical problem, a faulty thermostat, or dirty filters. Frequent cycling can also cause unnecessary wear and tear on your system, shortening its lifespan and leading to expensive repairs down the road. 6. System Won’t Turn On This one seems obvious, but it’s always worth mentioning. If your HVAC system refuses to start up or doesn’t respond to thermostat settings, you may have a more serious issue at hand. Whether it’s a broken ignition system, electrical failure, or faulty thermostat, don’t delay in contacting a professional to get it fixed before the winter cold sets in. 7. Unpleasant Odors Strange odors emanating from your HVAC system can be a sign of an issue. A musty or moldy smell could point to excess moisture in your system, which is common in areas like Charleston, SC, where humidity levels are high. If you notice a burning smell, it could indicate something is overheating, and that could be a fire hazard. 8. System Age Finally, if your HVAC system is nearing the end of its lifespan (typically 15-20 years), it may be more prone to breakdowns, inefficiency, and costly repairs. If you’ve noticed several small problems or it’s simply been a while since the last servicing, it may be time to consider a replacement before the system gives out during the coldest months of the year. Call Terrace Heating & Air for HVAC Repairs in Charleston, SC It’s always better to catch a problem early before it becomes a major issue. At Terrace Heating & Air, we’re committed to keeping your HVAC system running smoothly all winter long. Our team of certified technicians can provide expert diagnostics and repairs to ensure your heating system is ready to keep you warm and comfortable all season. Contact us today to schedule a checkup and make sure your HVAC system is prepared for the winter chill!

When winter arrives in Charleston, SC, the chilly air might prompt you to consider the best way to heat your home. With Charleston’s relatively mild winter climate, you don’t need the same level of heating as folks up north, but you still want a reliable and efficient system to stay comfortable. Two popular heating options are heat pumps and furnaces—but which one is the best choice for Charleston’s mild winters? At Terrace Heating & Air, we’re here to help you compare these options to find what’s right for your home. Understanding Heat Pumps Heat pumps work by transferring heat instead of generating it. In winter, they pull heat from the outdoor air and bring it inside. Because Charleston rarely experiences extreme cold, heat pumps can often find enough warmth in the air to keep your home cozy. They’re highly efficient, especially in mild climates, making them a popular choice in the Southeast. Benefits of a Heat Pump in Charleston: Energy Efficiency: Heat pumps can be three to four times more efficient than traditional electric heating, as they use electricity mainly to move heat, not create it. Dual Functionality: A heat pump can also cool your home in the summer, making it a year-round solution. Environmentally Friendly: Heat pumps produce fewer carbon emissions than fossil fuel-burning systems, making them a more eco-friendly choice. The Pros and Cons of Furnaces Furnaces are a more traditional heating solution, typically using natural gas, oil, or electricity to generate heat. For colder climates, furnaces are often preferred because they can produce higher levels of warmth more quickly. In Charleston, however, the intense heat output of a furnace might be overkill on milder winter days. Benefits of a Furnace in Charleston: Fast Heat Output: When temperatures drop quickly, a furnace can heat your home faster than a heat pump. Warmer Indoor Air: Furnaces deliver higher temperatures at the vent, creating a “warmer” feel compared to heat pumps. Longevity: With proper maintenance, gas furnaces typically have a longer lifespan than most heat pumps, often lasting 20+ years. Challenges of a Furnace in Charleston: Higher Energy Use: Furnaces, particularly electric ones, can be less efficient than heat pumps, leading to higher energy costs. No Cooling Capability: A furnace is only for heating, so you would still need an air conditioning unit to stay cool in the summer. Choosing the Right Option for Your Home Given Charleston’s mild winters, a heat pump might be the better choice for energy efficiency, cost savings, and year-round functionality. Heat pumps can handle Charleston’s winter lows and can be a more economical and eco-friendly solution. However, if you prefer faster heating or already have a furnace that’s in good working order, you may decide to stick with it. If you’re unsure about which system would best meet your needs, our experienced team at Terrace Heating & Air can help. We offer personalized consultations to recommend the ideal heating system for Charleston’s unique climate, your budget, and your comfort preferences. Whether you choose a heat pump or a furnace, we’ll make sure your home stays warm, efficient, and ready for whatever winter brings. Ready to Upgrade or Install a New Heating System? Contact Terrace Heating & Air! Our team at Terrace Heating & Air is here to guide you every step of the way. Contact us today to schedule a consultation and get the best heating solution for your Charleston home. Check out our products page to learn more about some of the energy efficient heat pumps and furnaces we carry and install here at Terrace Heating & Air in Charleston, SC!