Dunes Heating and Air Conditioning LLC

  What Homeowners Should Know About Coastal Corrosion If you’ve lived in Mount Pleasant long enough, you’ve probably seen what salt air can do. And unfortunately, your air conditioner isn’t immune. The same salty breeze that makes life near the marsh so refreshing also carries microscopic salt particles that cling to metal surfaces, including your AC’s coils and fins. Over time, that buildup can corrode key components, reduce efficiency, and shorten your system’s lifespan. At Dunes Heating and Air Conditioning, we service hundreds of homes across Mount Pleasant, Sullivan’s Island, and Isle of Palms, and corrosion is one of the most common (and preventable) issues we see in coastal systems. In this blog, our Mount Pleasant AC repair specialists will explore what every Lowcountry homeowner should know. Why Salt Air Is So Hard on AC Units Salt is naturally corrosive. When carried through the air, it settles on your outdoor condenser unit—the large metal box that pulls heat from your h...