Every degree you pay for travels through your ducts first. Make sure it arrives.
Heating
You can own the best HVAC system money can buy and still have a hot upstairs, a musty smell, and a shocking power bill — because the ductwork carrying that air is leaking, crushed, or sweating in a 130-degree attic. Alexander Heating & Cooling repairs and replaces ductwork across the Charleston area, and it is some of the highest-payoff work we do.
Leaky ducts dump the air you paid to condition into the attic or crawl space. Sealing and repairing them puts it back in your rooms.
Rooms that never match the thermostat usually have a duct problem, not an equipment problem. We fix the actual cause.
Lowcountry attics and crawl spaces are brutal on ductwork. We install insulated runs that stand up to the heat and humidity.
Open 7 Days
Call (843) 608-1689 any day of the week — or send the form and we will get right back to you. Honest pricing, clear answers, and a crew your neighbors already rated 5.0 stars.
How It Works
Give us a call at (843) 608-1689 or fill out the form. We will ask a few questions about what is going on.
Our technician finds the real problem and gives you clear pricing before any work starts.
We finish the job, clean up after ourselves, and test everything before we leave. Done means done.
One room is always hot and another always cold. Dust builds up fast no matter how often you clean. A musty smell rides in when the system kicks on. Airflow at some registers feels weak. The system runs constantly but the house never feels right. Any two of those together point at the ducts — and in Charleston homes with vented crawl spaces or older flex duct, that is where we usually find the trouble.
In the Lowcountry, poorly sealed or under-insulated ducts do more than leak air — they sweat. Condensation forms on cold duct surfaces in humid attics and crawl spaces, soaking insulation and feeding the musty smells nobody wants in their supply air. When we replace ductwork, we seal and insulate it for this climate specifically, so the air arrives cold, dry, and where it belongs.
Our Services
Whatever your system needs, Alexander handles it end to end — anywhere we serve:
Call (843) 608-1689 or book online — open 7 days a week across Charleston and the Lowcountry.
FAQ
Service Areas
Proudly serving Charleston and the Lowcountry, from Daniel Island to the beaches and out to Huger.
Get in Touch