Heating Repair in Mount Pleasant, SC — Heat Pump Specialists, Same-Day Service
When your heat pump quits heating on a cold Mount Pleasant night, you need a tech who knows heat pumps — and what salt air off Shem Creek and the Wando does to an outdoor unit. Coastal Carolina Comfort sends NATE-certified technicians across Mount Pleasant, same-day on most calls, with honest diagnosis and written pricing before any work begins.
The Heating Repairs Mount Pleasant
Homeowners Call Us For Most
Just across the Ravenel Bridge from downtown, Mount Pleasant heats almost entirely with heat pumps — so when the heat quits, it is usually a heat-pump fault, not a furnace. The town splits into two halves. Lower Mount Pleasant — Old Village, I’On, Snee Farm, Belle Hall — runs older systems, often squeezed into tight closets and crawl spaces. Upper Mount Pleasant — Carolina Park, Park West, Dunes West — is newer, and a lot of those homes are now hitting the age where the first heat pump needs real work or replacement.
Then there is the water. Homes near Shem Creek, the Wando River, and the tidal creeks take constant salt air on the outdoor unit. That salt corrodes the coil and fan motor years faster than inland. That is why Coastal Carolina Comfort always checks the outdoor coil on coastal Mount Pleasant homes before quoting a repair — the part that fails here often is not the one a homeowner expects.
Heat pump blowing cold air
The most common cold-night call in Mount Pleasant: a stuck reversing valve, a tripped defrost control, or a system locked into auxiliary heat. The fan runs, but the air is cool. We diagnose which fault it is before we quote a repair.
Stuck in defrost & iced over
On a cold snap your outdoor unit should defrost on a cycle. A failed defrost board or sensor leaves it iced solid and blowing cold — a heat-pump-specific failure we trace to the control, not guesswork.
Salt-air wear on the outdoor coil
Near Shem Creek and the Wando, salt air eats the outdoor coil, fan motor, and contactor years faster than inland. We check coil condition on every coastal call so a small fix does not become a full replacement.
Diagnosis Before Repair —
How Coastal Works
The same four-step process every Mount Pleasant service call runs through, from the moment you pick up the phone to a verified, working system.
Same-Day Dispatch
We get a NATE-certified tech to your Mount Pleasant home fast, same-day on most calls. You talk to our local team, not a national call center.
Full Heat-Pump Diagnostic
Reversing valve, defrost board, refrigerant charge, capacitor and contactor, auxiliary heat strips, airflow, thermostat, and the salt-exposed outdoor coil. We check each one rather than guess.
Written Pricing First
You get a flat-rate written estimate in plain language before any work begins. If replacement is the smarter money on an older system, we will tell you straight.
Repair & Verify
We fix it with manufacturer-spec parts, confirm the system is holding a proper temperature rise, and leave a written summary with a parts-and-labor warranty.
Every Common Heat Pump
Failure, Fixed in Mount Pleasant
Our trucks carry the parts behind most Lowcountry heat-pump breakdowns, so the majority of Mount Pleasant repairs finish in one visit.
Most Mount Pleasant heat pump repairs land between $150 and $700, depending on the part. Capacitors, contactors, and thermostats sit at the low end; a reversing valve, compressor, or defrost board costs more. You always get the number in writing before we start. On bigger repairs or a replacement, we offer 0% financing for 24 months.
Call (843) 708-8735What Neighbors Say After the Repair
Is Your Mount Pleasant Heat
Pump Worth Repairing?
Salt air off the creeks is hard on heat pumps, which puts a lot of Mount Pleasant systems right on the repair-or-replace line. Here is the honest framework our techs use.
Repair makes sense when
- The system is under about 10 to 12 years old
- The repair costs less than half a new system
- It is a single failed part — capacitor, contactor, defrost board, or sensor
- The outdoor coil is still sound and it runs R-410A, not phased-out R-22
Replacement is smarter when
- The unit is 12 to 15+ years old with a major failure
- You are facing a reversing valve or compressor on an aging system
- The outdoor coil is corroded through from salt air
- It still runs phased-out R-22, or you have had repeated repairs
Not sure where your system lands? That is the diagnostic call — we will show you the numbers and let you decide. Start with our Charleston heating repair team and we will route the closest Mount Pleasant tech to you.
Neighborhoods We Cover Around Mount Pleasant
We repair heat pumps and heating systems throughout Mount Pleasant (29464 and 29466) — both halves of town, from the Old Village waterfront to the newer neighborhoods up Highway 17.
Serving the rest of the Charleston coast:
Common Questions From
Mount Pleasant Homeowners
No Heat in Mount Pleasant? We Move Fast.
One call puts a NATE-certified technician on your Mount Pleasant heat pump, same-day on most jobs across the Charleston metro, with a written estimate before any work and parts on the truck.
Coastal Carolina Comfort keeps Mount Pleasant warm from Old Village to Park West: see the full Charleston heating repair page and the complete Charleston HVAC company hub. Call (843) 708-8735.