Top 7 HVAC companies in York, South Carolina

Climate in York County

York County falls in IECC zone 3A with a moist regime. Heating degree days total 2,300 while cooling degree days reach 2,200, producing a cooling-leaning mixed load. Columbia design temperatures are 25 °F winter and 96 °F summer. Very high summer humidity creates a heavy latent load that favors heat-pump systems sized for both sensible and latent capacity. Central air conditioning saturation is near-universal and electricity is the primary heating fuel. Peak service demand occurs in summer. Equipment must handle elevated moisture removal without short-cycling, and proper sizing remains critical to avoid humidity problems in shoulder seasons.

The shortlist

This shortlist is built from public listing data, not a review of work performed. Companies are ranked by a Bayesian-adjusted rating that pulls each star rating toward the national mean of 4.764 until the firm has enough reviews to stand on its own. Small tie-breakers favor a public website, HVAC-specialist listing category and published 24/7 availability.

Harper Company of the Carolinas, LLC

Eleven reviews produce a raw rating of 5.0 that the model adjusts downward to 4.827 because the count remains modest. The firm lists as a general contractor in York at 928 US Hwy 321 Bypass, York, SC 29745 and can be reached at (803) 329-2395. A public website supplies the only tie-breaker applied. The adjustment distance shows how eleven reviews still leave room for regression toward the mean. These numbers say nothing about actual workmanship, response times or warranty service once the contract is signed.

Carolina Air Control, LLC

Zero reviews leave the raw rating at 0, yet the adjusted score reaches the national mean of 4.764 through the website tie-breaker alone. The general-contractor listing shows an address in York, SC 29745 and the phone number (803) 526-3490. Without review volume the score cannot move away from the mean. The data therefore supplies no performance signal beyond the presence of a website.

Garrison Mechanical , Llc.

No reviews appear, so the raw rating sits at 0 and the adjusted rating equals the national mean of 4.764 after the website tie-breaker is applied. The firm operates from 3061 Moonlight Rd, York, SC 29745 as a general contractor and lists the phone (704) 748-3674. Review count is the sole reason the score stays pinned to the mean. Nothing in the listing reveals field performance or licensing status.

Good's Air Conditioning Heating

Six reviews yield a raw 5.0 that adjusts to 4.803. The firm lists as a general contractor at 2 Pinewood Dr, York, SC 29745 without a website and can be reached at (803) 684-9975. No tie-breakers were applied. The modest review count keeps the adjusted figure 0.197 below the raw score. These figures give no information on parts availability or post-install support.

Pruetts Heating and Air

Twenty-five reviews produce a raw rating of 4.6 that rises slightly to 4.689 after Bayesian adjustment. The general-contractor listing at 2404 SC-161, York, SC 29745 includes a website and the phone (803) 222-7661. The adjustment moves the score upward because the raw value sits below the national mean. Review volume is still low enough that further data could shift placement. The numbers do not address actual service quality or scheduling reliability.

Upstate Services Heating & Air

Three reviews give a raw rating of 4.0 that the model lifts to 4.695. The firm is listed as a general contractor at 488 Ramah Church Rd, York, SC 29745 without a website and can be reached at (803) 222-1169. No tie-breakers apply. The larger adjustment distance reflects the small sample size pulling the score toward the mean. These data points reveal nothing about technician training or equipment brands stocked.

Filtration Group

Thirty-four reviews produce a raw rating of 4.1 that adjusts upward to 4.411. The supplier category listing at 1200 Filbert Hwy, York, SC 29745 includes a website and the phone (803) 628-2400. The adjustment moves the score closer to the mean because the raw value is below it. Review depth is the highest on the list yet still modest by national standards. The figures supply no detail on installation capability or parts sourcing speed.

How to choose an HVAC contractor

Verify every firm through the state license lookup at https://verify.llronline.com/LicLookup/Resbu/Resbu.aspx before requesting bids. Confirm the correct classification for residential or commercial work and ask which local jurisdiction will issue the mechanical permit. Request references from recent jobs of similar scope and compare written estimates that itemize equipment, labor at the published $90 hourly rate and permit fees.

Cost of HVAC work

Modeled typical full-system installation cost is $8,450 with a published range of $7,600 to $9,300. Invoiced averages for 2025 reach $19,089 while the upper quartile hits $26,280. Labor is listed at $90 per hour and permit fees range from $90 to $300. Both sources are supplied; the invoiced average is roughly twice the modeled typical price. The gap between the two data sets is itself information for budgeting. No totals or differences are calculated beyond the figures given.

Licensing and permits

South Carolina maintains state-level licensing through the Residential Builders Commission for residential HVAC and the Contractors' Licensing Board for commercial and mechanical HVAC, both under the Department of Labor, Licensing and Regulation. A Residential HVAC Installer and Repairer License covers residential work exceeding $500; a Group 2 Mechanical Contractor license covers commercial work exceeding $10,000. A $10,000 surety bond is required when residential jobs exceed $5,000. Permits for furnace or AC changeouts are issued by the local city or county building department, not the state. License lookup is available at https://verify.llronline.com/LicLookup/Resbu/Resbu.aspx.

Incentives and rebates

The South Carolina Home Energy Rebates program is conditionally approved with a planned launch in 2026 and a maximum heat-pump rebate of $8,000. No state tax credit exists. Utility programs from Duke Energy Carolinas, Dominion Energy SC and Santee Cooper offer rebates between $200 and $1,200, all requiring participation in a contractor network. Federal 25C and 25D credits expired at the end of 2025; the 48E ITC remains available only for commercial or third-party-owned systems. These rules mean homeowners should first confirm which installers belong to the relevant utility networks before comparing equipment options.

York County data show a mature heat-pump market with clear climate-driven sizing requirements. License verification and local permit steps remain the non-negotiable first actions for any project.