#1
Techmazing Heating, Cooling & Plumbing
“Josh did a great job on our new system install. He diagnosed the old system and laid out the options. Everything went smoothly, continuing the great service we have gotten for years.” — Google review
Experts Reviews · 2026 Ratings
The Best HVAC Contractors in Stonecrest, GA
We graded 6 companies on seven things customers actually report: satisfaction, reliability, workmanship, value, momentum, track record and how owners handle complaints.
$340typical jobMedian of the bill customers reported in their Google review (Google asks reviewers for a price range; we use the middle of each range).
97%say the price was fairOf customers who rated the price, the share who chose “Great price” or “Reasonable” rather than “Overpriced”.
4.90★average ratingPlain average of every Google star rating we collected for these companies.
1.9%bad jobs (1–2★, 2 yrs)Share of 1–2★ reviews in the last 24 months — or the 20 newest reviews when the company had fewer than 20 in that time.
From 120,450 Google reviews of 119 top-rated HVAC contractors nationwide; 6 of them in Stonecrest, GA. Updated November 9, 2026.
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Overall ratings
Experts Score 0–100Experts Score (0–100)Absolute quality first: recency-weighted star average (≈54%), share of 1–2★ reviews (≈24%), customers’ price verdicts (≈14%), owner replies to critical reviews (≈7%); minus up to 10 points each for complaints flagged in Google review highlights and for a real slide in recent ratings. Hover a company’s score on its page for the full breakdown. and a letter grade per factor (A = top 20% of HVAC contractors).
| # | Company | ScoreExperts Score (0–100)Absolute quality first: recency-weighted star average (≈54%), share of 1–2★ reviews (≈24%), customers’ price verdicts (≈14%), owner replies to critical reviews (≈7%); minus up to 10 points each for complaints flagged in Google review highlights and for a real slide in recent ratings. Hover a company’s score on its page for the full breakdown. | FactorsFactor grades, in orderSatisfaction (54%): Recency-weighted star average (2-year half-life), shrunk toward the category mean by review volume; the company’s own lifetime average as the prior; absolute: 4.0★ = 0, 5★ = 100.Reliability (24%): How rarely jobs go badly: share of 1–2★ reviews — 60% the last 24 months (or the 20 newest if fewer), 40% all-time; 0% = 100, 15%+ = 0; the category percentile can only raise it.Craft & service (0%): Google review highlights: Quality, Professionalism, Responsiveness, Punctuality — how rarely reviewers flag them as a negative, per review since highlights began; 0% = 100, 5%+ = 0. Subtracted from the score (up to −10), never averaged in — clean highlights are the norm, not a bonus.Value (14%): Customers’ own price verdicts (Great / Reasonable vs Overpriced) and Value highlights; 65% absolute (all “reasonable” ≈ 80, “great” = 100), the category percentile can only raise it.Momentum (0%): Penalises only a real slide: last-12-month average below lifetime (−0.5★ = 0). Still 4.8★+ over the last year, or steady/improving = 100. Subtracted from the score (up to −10), never averaged in.Replies to reviews (7%): How often the owner publicly replies to reviews under 5★ (1–4★). Needs 3+ such reviews, otherwise not counted; 65% absolute (80%+ replied = 100), the category percentile can only raise it.One letter per factor score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = below 20. | ★Google star rating as shown on Google Maps. | Typical billMedian bill customers of this company reported in their reviews (needs 3+ priced reviews). |
|---|---|---|---|---|---|
| 1 |  PM Service Company LLCStonecrest, GA | A 100How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 59%100+58.7Reliability 26%99+25.8Value 15%100+15.2Experts Score= 100Not enough data for replies to reviews; its weight is shared by the others.Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAA– | 5.00 | $548 |
| 2 | A 99How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 59%99+58.1Reliability 26%99+25.8Value 15%100+15.2Experts Score= 99Not enough data for replies to reviews; its weight is shared by the others.Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAA– | 4.99 | $163 | |
| 3 |  OP's Heating and Air LLCStonecrest, GA | A 98How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 59%98+57.5Reliability 26%95+24.8Value 15%100+15.2Experts Score= 98Not enough data for replies to reviews; its weight is shared by the others.Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAA– | 4.98 | $397 |
| 4 | Techmazing Heating, Cooling & PlumbingStonecrest, GA | A 95How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%97+52.9Reliability 24%97+23.5Value 14%100+14.1Replies to reviews 7%57+4Experts Score= 95Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAC | 4.97 | $429 |
| 5 |  Peppers Heating & AirStonecrest, GA | A 92How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%92+50.2Reliability 24%88+21.3Value 14%100+14.1Replies to reviews 7%100+7.1Craft & service penalty92−0.8Experts Score= 92Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAA | 4.90 | — |
| 6 |  BE Relieved Heating & Air Conditioning, Inc.Stonecrest, GA | A 84How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 59%91+53.4Reliability 26%75+19.6Value 15%100+15.2Craft & service penalty99−0.1Momentum penalty58−4.2Experts Score= 84Not enough data for replies to reviews; its weight is shared by the others.Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | ABAAC– | 4.95 | — |
What jobs cost
What customers paid, from the price Google asks reviewers to report.
| Job | Low25th percentile: 1 in 4 customers paid less than this. | TypicalMedian of the bill customers reported in their Google review (Google asks reviewers for a price range; we use the middle of each range). | High75th percentile: 1 in 4 customers paid more than this. | FairOf customers who rated the price, the share who chose “Great price” or “Reasonable” rather than “Overpriced”. |
|---|---|---|---|---|
| HVAC system maintenance | $37 | $135 | $295 | 98% |
| A/C system maintenance | $39 | $192 | $393 | 98% |
| HVAC system repair | $205 | $406 | $942 | 97% |
| A/C system repair | $209 | $383 | $793 | 97% |
| Install AC | $1.5k | $2.1k | $3.2k | 98% |
| Heating system maintenance | $37 | $124 | $251 | 98% |
| Heating system installation | $1.4k | $1.9k | $2.5k | 98% |
| Repair HVAC | $224 | $359 | $535 | 97% |
| Heating system repair | $161 | $453 | $1.2k | 97% |
| Installation | $1.2k | $2.1k | $2.8k | 99% |
| Install thermostat | $50 | $148 | $437 | 98% |
| HVAC duct & vent installation | $1.2k | $1.9k | $2.8k | 95% |
HVAC Contractors in Stonecrest, GA at a glance
How the 6 HVAC contractors we rated in Stonecrest, GA compare, and what customers praise most.
Experts Score grades
A = score 80+, F = below 20.
- Grade A6100%
- Grade B00%
- Grade C00%
- Grade D00%
- Grade F00%
Google ratings
Average stars per company.
- 4.90★ and up6100%
- 4.80–4.89★00%
- 4.60–4.79★00%
- Below 4.60★00%
What customers praise
Share of Google review highlights.
- Quality22,94920%
- Professionalism28,30524%
- Responsiveness24,05321%
- Punctuality23,68620%
- Value17,25115%
Was the price fair?
All price verdicts left with reviews.
- Great price6,51333%
- Reasonable10,81456%
- Overpriced5913%
- Not sure1,5288%
Price verdicts by year
Share calling it great / reasonable / overpriced.
2025
2026
How we grade
Satisfaction (54%) — Recency-weighted star average (2-year half-life), shrunk toward the category mean by review volume; the company’s own lifetime average as the prior; absolute: 4.0★ = 0, 5★ = 100.
Reliability (24%) — How rarely jobs go badly: share of 1–2★ reviews — 60% the last 24 months (or the 20 newest if fewer), 40% all-time; 0% = 100, 15%+ = 0; the category percentile can only raise it.
Craft & service (penalty, up to −10) — Google review highlights: Quality, Professionalism, Responsiveness, Punctuality — how rarely reviewers flag them as a negative, per review since highlights began; 0% = 100, 5%+ = 0. Subtracted from the score (up to −10), never averaged in — clean highlights are the norm, not a bonus.
Value (14%) — Customers’ own price verdicts (Great / Reasonable vs Overpriced) and Value highlights; 65% absolute (all “reasonable” ≈ 80, “great” = 100), the category percentile can only raise it.
Momentum (penalty, up to −10) — Penalises only a real slide: last-12-month average below lifetime (−0.5★ = 0). Still 4.8★+ over the last year, or steady/improving = 100. Subtracted from the score (up to −10), never averaged in.
Replies to reviews (7%) — How often the owner publicly replies to reviews under 5★ (1–4★). Needs 3+ such reviews, otherwise not counted; 65% absolute (80%+ replied = 100), the category percentile can only raise it.
The 10 best-rated hvac contractors in Stonecrest, GA average 5.0★ on Google across 6,099 reviews. Techmazing Heating, Cooling & Plumbing has the top rating (5.0★). Updated November 6, 2026.
10 companies that meet our bar: rated 4.5★ or higher on Google, with a meaningful review history (6,099 reviews combined) and currently operating. Request a call back and the company will phone you directly.
#2
Hope Heating & AC Repair
“Always smooth and great communication from this company. They installed my unit and have maintained it for me they always do a phenomenal job.” — Google review
#3
The Air Company of GA
“The Air Company is committed to excellence and will stick with it until the problem is solved. So grateful for a reliable company filled with kind and trustworthy service people from the office to the repair staff.…” — Google review
#4
OP's Heating and Air LLC
“Great professional service! They came out and immediately assess the problem and came up with a repair solution. Thank you!!” — Google review
#5
PM Service Company LLC
“I had a great experience with P.M. Service LLC! The service was professional, prompt, and reliable from start to finish. They were very knowledgeable, took the time to explain everything clearly, and made sure the…” — Google review
#6
Smart Comfort Heating and Air LLC
“Heater downstairs quit working and Smart Comfort showed up in a few hours and solved the problem in no time. The rodents had chewed through my wires in the crawlspace. TRAP TIME! I recommend the two times a year…” — Google review
#7
Empire Heating & Air Conditioning
“Lance and George did a great job listening to my concerns and answered all of my questions. At my request Lance brought George out to look at my inside closet and roof location where the installation of the equipment…” — Google review
#8
Peppers Heating & Air
“I recently contacted Peppers Heating & Air due to a stopped up AC drain line. They responded fairly quick as it was on a Saturday. They resolved the issue. Then I started and Annual maintenance plain. The service…” — Google review
#9
Champion HVAC & Plumbing
“I had a great experience with their HVAC service! The team was professional, friendly, and punctual. They explained everything clearly, worked efficiently, and made sure everything was running properly before…” — Google review
#10
BE Relieved Heating & Air Conditioning, Inc.
“Great experience. Technician was very professional, methodoical and knowledgeable. During the appointment the technician convinced me he was there to resolve my issue. Thanks BE! Another great result from BE…” — Google review
How we pick hvac contractors in Stonecrest
We scan Google Maps for hvac contractor listings in and around Stonecrest, keep only open businesses whose main category matches the service, and require a Google rating of at least 4.5 from at least 20 reviews. Companies are ordered by a confidence-weighted score that balances rating and review volume. We do not accept payment for placement.
Frequently asked questions
Who is the highest-rated hvac contractor in Stonecrest?
Techmazing Heating, Cooling & Plumbing has the highest Google rating on our Stonecrest list: 5.0 out of 5 from 1,252 reviews (as of November 6, 2026).
Which hvac contractor in Stonecrest has the most reviews?
Techmazing Heating, Cooling & Plumbing has the most Google reviews among the companies listed here: 1,252, with a 5.0★ average.
How are these hvac contractors chosen?
Only open Stonecrest-area businesses whose Google category matches the service, rated at least 4.5★ from at least 20 Google reviews. They are ordered by a confidence-weighted score of rating and review volume. Placement is never paid.
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