Top 7 HVAC companies in Greenville, South Carolina

Greenville County sits in a cooling-leaning mixed climate with very high summer humidity and near-universal central-air saturation. Homeowners replacing equipment face a shortlist drawn from public listings rather than performance audits. The ranking uses a Bayesian adjustment that pulls every raw star rating toward the national mean of 4.764 until review counts grow large enough to stand alone. Tie-breakers favor a public website and published 24/7 availability.

Installed costs

Modeled typical full-system price stands at $8450, bounded by $7600 and $9300. Invoiced averages for 2025 jobs reached $19089 while the upper quartile reached $26280. Labor is published at $90 per hour and local permit fees range from $90 to $300. Both sources appear in the data; the invoiced average sits well above the modeled typical price. These figures cover complete changeouts and already reflect Greenville's lower cost tier versus national benchmarks. No averages or differences are calculated here because the two data sets measure different populations of jobs.

The shortlist

Three Jay Heating & Air

Three Jay Heating & Air operates from 1035 Park W Blvd Unit b-5, Greenville, SC 29611 and lists (864) 774-5495. Its general-contractor category and 24/7 posting suggest readiness for both scheduled and emergency residential calls. Twelve reviews produced a raw 5.0 that the adjustment lowered to 4.831 because the small sample size tugs the score toward 4.764. The firm also earned tie-breakers for its website and round-the-clock listing. The numbers cannot reveal how the twelve customers were selected or whether the same crew handles every call.

Greenville Pro Heating & Cooling Inc.

Greenville Pro Heating & Cooling Inc. is located at 20 Piney Mountain Rd, Greenville, SC 29609 and can be reached at (864) 412-1588. Thirty-two reviews at a raw 5.0 moved only to 4.886 after adjustment, the smallest pull among the top entries because the count already supplies stability. No website or 24/7 flag appears. The general-contractor listing implies the firm accepts a broad range of work beyond HVAC. These figures leave open the question of whether larger jobs receive the same attention as smaller ones.

Calhoun Heating and Air

Calhoun Heating and Air lists 12 Carolina Ave, Greenville, SC 29607 and the number (864) 315-7382. Thirteen reviews at raw 5.0 adjusted to 4.835, pulled downward by limited volume despite the website tie-breaker. The general-contractor category and lack of 24/7 availability point to standard daytime scheduling. The score difference from the mean shows how few reviews still exert noticeable influence on the final placement.

Full-Air Heating & Cooling

Full-Air Heating & Cooling is at 2313 Old Buncombe Rd, Greenville, SC 29609 with phone (864) 421-9355. Eleven reviews produced a raw 5.0 adjusted to 4.827 after the website tie-breaker was applied. The general-contractor listing and daytime-only hours suggest focus on planned residential replacements. The adjustment distance reflects the modest review count pulling the rating toward the national mean.

All Weather Services

All Weather Services operates from 122 Old Mill Rd Ste H, Mauldin, SC 29662 and lists (864) 757-4822. Twenty-eight reviews at 4.6 adjusted upward to 4.685 because the rating sat below the mean; the website and 24/7 flags supplied additional tie-breakers. The general-contractor category indicates mixed residential and light commercial work. The numbers cannot disclose whether the 24/7 line routes to an answering service after hours.

Greenville Heating & Cooling

Greenville Heating & Cooling is located at 105 Orders St, Greenville, SC 29609 and answers at (864) 232-6831. Eleven reviews at raw 4.5 adjusted upward to 4.693 because the score lay below the mean and no extra tie-breakers applied. The general-contractor listing and standard hours suggest daytime residential service. The adjustment distance illustrates how a smaller sample can still shift placement when the raw rating is below average.

Cordell's Heating and Cooling

Cordell's Heating and Cooling lists 227 Maryland Ave, Greenville, SC 29611 and the number (864) 444-4253. Nineteen reviews at 3.7 adjusted upward to 4.351 because the raw score sat well below the mean; the 24/7 flag provided the only tie-breaker. The general-contractor category and continuous availability suggest the firm accepts after-hours residential calls. The numbers leave open how many of the nineteen reviews reflect recent work versus older listings.

Licensing and permits

South Carolina maintains state-level licensing through the Residential Builders Commission for residential HVAC and the Contractors' Licensing Board for commercial mechanical work, both under the Department of Labor, Licensing and Regulation. A Residential HVAC Installer and Repairer License covers residential jobs exceeding $500; a Group 2 Mechanical Contractor license is required for commercial work above $10,000. The state does not mandate general liability insurance, though a $10,000 surety bond is required once a residential job exceeds $5,000. Permits themselves are issued by the local city or county building department and are not controlled at the state level. Homeowners can verify any license at verify.llronline.com/LicLookup/Resbu/Resbu.aspx.

Local climate demands

Greenville falls in IECC zone 3A with 2300 heating degree days and 2200 cooling degree days. Design temperatures are 25 °F in winter and 96 °F in summer, accompanied by very high humidity. The load profile is cooling-dominant with heavy latent load, and heat-pump suitability is rated excellent. Near-universal central-air saturation means most replacements involve existing ducted systems. Equipment must handle high moisture removal while the modest winter load still favors heat-pump efficiency. Proper sizing remains critical because oversized units will short-cycle and fail to control humidity in this moist regime.

Available incentives

South Carolina's Home Energy Rebates program is conditionally approved for a 2026 launch with a planned $8,000 heat-pump rebate. No state tax credit exists. Utility programs from Duke Energy Carolinas, Dominion Energy SC, and Santee Cooper offer $200 to $1,200 rebates, but participation requires the installer to belong to the utility contractor network. Federal 25C and 25D credits expired at the end of 2025; only the commercial 48E investment tax credit remains for third-party-owned systems. The combination of state licensing tiers and utility network rules means homeowners should first confirm an installer holds the correct LLR classification and utility approval before discussing equipment choices.

How to choose

Compare each firm's review count against its adjusted rating to gauge stability. Verify the state license class matches the job size, confirm the firm participates in any utility rebate network, and ask the local building department about permit requirements before signing a contract. Public data alone cannot predict workmanship or long-term reliability.