Charleston, SC
HVAC Pros in Charleston, SC
12 licensed HVAC pros serve Charleston, SC. Free-quote requests route to whichever provider can match your ZIP and timing. Santee Cooper rebates up to $800 available.
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Quick facts
- AreaCharleston
- StateSC
- Providers12
- Climate zone3A-Warm-Humid
- Heating degree days3,000
- Recommended systemheat pump dominant
Why HVAC matters in Charleston
Charleston sits in IECC climate zone 3A-Warm-Humid with average January temperatures of 46°F and July highs around 80°F. With 1,900 cooling degree days, air conditioning is critical during summer months.
SC (Charleston County) falls in IECC 3A-Warm-Humid. HDD 3000 / CDD 1900 per NOAA 1991–2020 state averages drive a heat pump dominant HVAC strategy. Climate data is zone-level; consult a contractor for site-specific load calcs.
Heat pump recommended for Charleston
An air source heat pump is the ideal system for this climate zone — it heats in winter and cools in summer with one unit.
With mild winters (avg 46°F in January) and 3,000 heating degree days, heat pumps operate at peak efficiency year-round here.
About Charleston HVAC
12 HVAC providers list active service in Charleston — a small but workable shortlist. Getting three quotes is realistic if you plan a week out. Charleston County pricing tends to track the regional median, with premium brands and efficiency tiers driving the range.
Charleston's climate (IECC zone 3A-Warm-Humid) keeps outdoor temps inside the efficient range of air-source heat pumps most of the year, with January averages around 46°F. That's why heat-pump conversions have overtaken straight AC + furnace installs in most of the local market. Santee Cooper's Santee Cooper Reduce The Use — Heat Pump Rebate currently offers up to $800 toward a qualifying system, which meaningfully shifts the cost-of-ownership math.
Top local providers
Request quotes →- Service Experts CharlestonTop ratedinstallationrepairemergency
What customers say “This team demonstrated strong coordination and efficiency throughout the project. Brett, along with James, Alfonso,…”
- installationrepairinspectionemergency
What customers say “Tony Hattar has very efficient and knowledgeable. He always responds to our questions and resolves any problems. He…”
- installationrepairemergency
What customers say “Great experience. Alex was awesome to deal with from our inital consultation explaining the different air…”
- Carolina Climate ControlTop rated
What customers say “Had a tech named Joe A. here today for biannual maintenance for my heat pump. What an absolute pro!! He was meticulous…”
- Carolina Custom AirTop ratedinstallationrepairinspection
What customers say “We had Carolina custom air come out as a second opinion to another vendor who told me it would be $30,000 to replace…”
- installationrepairemergency
What customers say “I work in real estate and also at the front desk of a local elementary school, so I’m around people and service…”
- Carney & Son 72 DegreesTop rated
What customers say “I had an excellent experience with Carney and Sons for a full HVAC system installation. From the very first visit, they…”
- AGL Heating & AirTop rated
What customers say “Outstanding service from start to finish. It started with Shonn with his estimate. He answered all my questions, and…”
- Smoak's Comfort ControlTop ratedinstallationrepairemergency
What customers say “Technician John McGarvie with Smoak's Comfort Control just recently replaced my traditional water heater with a Rinnai…”
- M&B Heating and AirTop rated
What customers say “M&B is wonderful. They had previously worked on the HVAC for my business, so when I needed a replacement HVAC for a…”
- 5 Star CharlestonTop rated
What customers say “Heater wouldn’t turn on last night. They came out this morning and replaced the thermostat. Warm again now, no more…”
- Terrace Heating & AirTop rated
What customers say “If you're looking for an exceptional air conditioning repair technician, let me tell you about the Jack! From the…”
What Charleston homeowners say
“We had Carolina custom air come out as a second opinion to another vendor who told me it would be $30,000 to replace our AC unit and $7000 to repair. Carolina custom air came in. They did a throw inspection and told me that they would not be able to …”
“Tony Hattar has very efficient and knowledgeable. He always responds to our questions and resolves any problems. He will always tell us when he sees an issue and explains the different choices we have. We always ask for him as we know he is going to …”
“If you're looking for an exceptional air conditioning repair technician, let me tell you about the Jack! From the moment he arrived, it was clear he was both knowledgeable and professional. He quickly diagnosed the problem, explaining each step in a…”
Local pricing snapshot
Repairs typically run $150–$600. Full system replacements range from $4k for a basic furnace to $12k+ for a premium heat pump. Heat pumps are the recommended system for this climate zone, offering both heating and cooling in one unit.
Available rebates in Charleston
- Santee Cooper: Santee Cooper Reduce The Use — Heat Pump Rebate — $200–$800 for heat pump
Federal tax credits (up to $2,000 for heat pumps) can stack with utility rebates. See full cost breakdown →
Nearby service areas
South Carolina hub →Popular comparisons in Charleston
- Service Experts Charleston vs C&C Myers Heating, Cooling, Plumbing & Electrical4.9★ vs 4.8★
- Service Experts Charleston vs Blanton & Sons - Heating, Cooling and Plumbing4.9★ vs 4.8★
- C&C Myers Heating, Cooling, Plumbing & Electrical vs Blanton & Sons - Heating, Cooling and Plumbing4.8★ vs 4.8★
- C&C Myers Heating, Cooling, Plumbing & Electrical vs Carolina Climate Control4.8★ vs 4.9★
- Blanton & Sons - Heating, Cooling and Plumbing vs Carolina Climate Control4.8★ vs 4.9★
- Blanton & Sons - Heating, Cooling and Plumbing vs Carolina Custom Air4.8★ vs 4.9★
Related research
Frequently Asked Questions
What's the best heating system for Charleston?
Charleston is in IECC climate zone 3A-Warm-Humid with mild winters (avg January: 46°F). Air source heat pumps are the recommended system — they provide both heating and cooling efficiently in this marine climate, and qualify for substantial utility and federal rebates.
How important is air conditioning in Charleston?
Very. With 1900 cooling degree days and summer highs regularly exceeding 80°F, AC is essential in Charleston. Central AC or a heat pump (which provides both heating and cooling) is strongly recommended. Budget $3,500-$7,000 for a quality cooling system installation.
What HVAC rebates are available in Charleston?
Charleston homeowners can stack multiple incentives: Santee Cooper offers up to $800 for heat pump installations. Add the federal 25C tax credit ($2,000), and total savings can reach $2,800+. Ask your installer to itemize which rebates apply to your specific project.
How much does HVAC work cost in Charleston?
In Charleston, typical costs range from $150-$600 for repairs, $4,000-$8,000 for a standard furnace or AC replacement, and $6,000-$14,000 for a heat pump system. After available rebates, heat pump installations often net out to $4,000-$9,000. Get 2-3 written quotes to compare — prices vary significantly between contractors.
How do I verify a HVAC contractor is licensed in South Carolina?
South Carolina HVAC contractors need a Mechanical Contractor license from the SC LLR Contractor's Licensing Board for commercial work over $5,000 (HT and AC-A/B/C subclassifications) — and, for residential work, a Residential Specialty Contractor license (HVAC) issued by the Residential Builders Commission. Verify at verify.llronline.com — confirm Active status for both the business and the qualifying party, current general-liability insurance, and any surety bond required by the classification limit.
Licensing verified weekly. Reviews refreshed within the last 30 days.
Licensing data: South Carolina Department of Labor, Licensing and Regulation (LLR) — Contractor's Licensing Board (commercial Mechanical) and Residential Builders Commission (Residential Specialty HVAC) · Company data: verified business records + Google Business profile
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