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The 10 Best HVAC Contractors in Charleston (2026)
This list ranks Charleston’s top HVAC contractors using Google review data and a Bayesian-style score that weights average rating by number of reviews. Updated for 2026, the roundup highlights firms with consistently high ratings and substantial customer feedback across the Charleston area. Charleston homeowners face humid summers and older housing stock, so dependable heating and cooling pros are essential year-round. We focused strictly on Google review performance and publicly listed business categories and addresses to compile a practical, easy-to-scan local guide.
This ranking is computed from Google reviews (our method). Listings marked Partner are paid advertising spots: they sit alongside the ranking without changing its order.
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Anchor Heating and Air LLC
Anchor Heating and Air LLC tops the list thanks to a perfect 5.0 rating paired with a very large review count (1,546), which gives it strong statistical standing in our Google-based ranking. That combination of score and volume suggests consistent positive experiences across many customers. Its presence in Charleston with high visibility and substantial feedback is what pushes it ahead in this methodology.
The full ranking
AGL Heating & Air
AGL Heating & Air posts a 5.0 rating supported by 960 reviews and appears under HVAC contractor; the address places it on Johns Island (29455).
960 reviews
1st Choice A/C, Heating, Plumbing, & Gas
This business shows a 5.0 Google rating with 783 reviews, categorized as an HVAC contractor and listed in Charleston (29492).
783 reviews
Sing
Sing is listed as an HVAC contractor with a 5.0 rating from 769 reviews, and its address is in North Charleston (29405).
769 reviews
Blake & Sons Heating & Air
Blake & Sons Heating & Air has a 5.0 score backed by 628 reviews, categorized as an HVAC contractor and located in North Charleston (29420).
628 reviews
Alexander Heating & Cooling
Alexander Heating & Cooling carries a 5.0 rating across 483 reviews, shown as an Air conditioning contractor and based in Charleston (29492).
483 reviews
First Call Heating & Cooling
First Call Heating & Cooling posts a 5.0 Google rating with 185 reviews, listed under HVAC contractor and located in Charleston (29418).
185 reviews
Max Mechanical Heating and Air
Max Mechanical Heating and Air appears with a 5.0 rating from 144 reviews, categorized as an HVAC contractor and based in Charleston (29407).
144 reviews
Polar Bear Heating and Air
Polar Bear Heating and Air holds a 5.0 rating supported by 137 reviews, listed as an HVAC contractor in North Charleston (29405).
137 reviews
Anchor Heating and Air
This listing for Anchor Heating and Air records a 5.0 rating with 114 reviews and is categorized as an HVAC contractor situated in Charleston (29492).
114 reviews
Frequently asked questions
How should I choose an HVAC contractor in Charleston?
Look for a licensed and insured contractor with clear pricing, transparent warranties, and positive recent reviews. Ask for references, verify professional credentials, and confirm experience with the type of system you have before committing.
What should I check before hiring an HVAC company?
Confirm licensing, insurance, and written estimates that list parts and labor. Also check for clear warranty terms, ask about any required permits, and read recent customer reviews to gauge reliability.
How much does typical HVAC work cost in Charleston?
Costs vary widely by job type, system size, and parts required; routine maintenance and small repairs cost less than full replacements. Get at least two written estimates and compare scope, components, and warranty details to make an informed decision.
How was this ranking of HVAC contractors created?
The list is built from Google review data using a Bayesian-style approach that weights average rating by the number of reviews, prioritizing businesses with both high scores and substantial review volume. It reflects publicly available Google categories and addresses, updated for 2026.