Top 7 HVAC companies in DeKalb, Georgia

DeKalb County sits in a mixed heating and cooling climate where summer humidity drives peak loads and winter temperatures still require supplemental heat. Public listing data supplies the only evidence used here. The ranking applies a Bayesian adjustment that moves every raw rating toward the national mean of 4.764; firms with fewer reviews experience larger shifts.

The shortlist

YU-BAR HVAC LLC

YU-BAR HVAC LLC operates from 1276 Old Countryside Cir, Stone Mountain, GA 30083 and lists a general-contractor category with a public website. Its raw rating of 5.0 from 15 reviews adjusts downward to 4.883 because the score sits above the national mean and the modest review count allows noticeable pull. The phone number is (678) 200-6345. These numbers cannot reveal whether the firm’s work volume matches its small published sample or how often the listed address handles service calls.

Heating & Air Conditioning

Heating & Air Conditioning maintains its listing at 1605 Church St, Decatur, GA 30033 under the general-contractor heading and carries no website. The raw 5.0 from 18 reviews receives an adjusted score of 4.853. The phone number is (470) 408-5199. The adjustment reflects the same upward bias from the national mean; with only 18 reviews the firm’s position remains sensitive to new ratings.

mrfixithvacplus.com

mrfixithvacplus.com lists 536 Halwick Ct, Stone Mountain, GA 30083, carries a website and posts a raw rating of 4.9 from 9 reviews. The adjusted score used for ranking is 4.835. The phone number is (678) 851-4332. Because the raw rating exceeds the national mean, the Bayesian step moves it downward; the small review total widens the gap between raw and adjusted figures.

Norcross HVAC Services

Norcross HVAC Services appears at 6435 Warren Dr NW, Norcross, GA 30093 in the general-contractor category without a website. Its raw 5.0 from 11 reviews yields an adjusted score of 4.827. The phone number is (470) 857-4783. Limited review depth keeps the score close to the raw value yet still pulled toward 4.764.

HVAC Services: Heating & Air Conditioning

HVAC Services: Heating & Air Conditioning lists 3015 N Druid Hills Rd NE, Atlanta, GA 30329 as a general contractor with no website. The raw rating of 5.0 rests on 7 reviews and adjusts to 4.809. The phone number is (943) 245-8436. The adjustment distance is larger than for firms with more reviews because fewer data points allow greater movement toward the national mean.

BKM HVAC SERVICES LLC

BKM HVAC SERVICES LLC operates from 6597 E Windsor Ln, Norcross, GA 30093, holds a general-contractor listing and publishes 24/7 availability. Its raw rating of 4.7 from 3 reviews adjusts upward to 4.778. The phone number is (470) 994-0446. The low review count produces the largest shift of any firm in the shortlist, moving the score closer to the national mean from below.

Messiah Heating And Air Conditioning INC

Messiah Heating And Air Conditioning INC lists 317 W Ponce de Leon Ave, Decatur, GA 30030, maintains a website and records 45 reviews at a raw rating of 4.6. The adjusted score reaches 4.706. The phone number is (404) 907-4410. With the largest sample, the Bayesian adjustment is the smallest; the score moves only modestly toward 4.764.

How to choose

Companies are ranked by a Bayesian-adjusted rating: a company's star rating is pulled toward the national mean until it has enough reviews to stand on its own, so a 5.0 from four customers does not outrank a 4.9 from two hundred. Small tie-breakers apply for a public website, for being listed as an HVAC specialist rather than a general contractor, and for published 24/7 availability. This is a shortlist built from public listing data, not a review of work performed.

Cost

Installed-cost data for DeKalb County show two divergent sources. One reports a typical full-system price of $8,550 inside a range of $7,700 to $9,400. A second source records an invoiced average of $15,847 with upper-quartile jobs reaching $23,214. Labor is stated at $90 per hour and mechanical permits range from $100 to $350. The gap between the two cost sets exceeds typical regional variation and should be treated as information rather than error. No single figure can be assumed without a site-specific load calculation.

Climate

DeKalb County falls primarily in IECC zone 3A with a moist regime. Heating degree days total 2,600 while cooling degree days reach 2,000, producing a balanced mixed load profile. Design temperatures are 23 °F in winter and 93 °F in summer, accompanied by high humidity during the cooling season. Heat pumps are rated excellent for the market, and central air conditioning saturation is near universal. The shoulder heating requirement and summer peak together demand equipment sized for both latent and sensible loads rather than cooling capacity alone.

Licensing and permits

Conditioned Air Contractor licenses are issued at the state level by the Georgia State Construction Industry Licensing Board — Division of Conditioned Air Contractors. Two classes exist: Class I covers restricted systems up to 175,000 BTU heating and 60,000 BTU cooling; Class II is unrestricted. General liability insurance is required before licensure, though limits follow board policy rather than a fixed statute; workers’ compensation applies once a firm employs three or more people. Mechanical permits for residential changeouts are issued locally by county or city departments, not by the state board.

Incentives

Georgia Home Energy Rebates remain available through GEFA, with a maximum heat-pump rebate of $8,000 and higher caps under the HOMES program for low-income households. No state tax credit exists. Utility programs through Georgia Power and certain EMCs offer $100 to $1,500. Contractor-network participation is required for rebate access. Federal 25C and 25D credits expired at the end of 2025; only the commercial 48E credit survives under narrow timing rules. Homeowners therefore need installers already enrolled in active state and utility networks to capture current rebates.