Top 50 of 94 HVAC contractors, in emergency orderUpdated 0 paid placements in this rankingHow we rank
25 of the 50 HVAC contractors on this list post 24/7 hours. 24/7 businesses come first, then same-day, each ranked by CR Score with availability weighted higher.
#1 for emergency heating and cooling in Greenville: CS AIR & HEAT, open 24/7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
| Rank | Business | CR Score | Google rating | Based in | Hours |
|---|---|---|---|---|---|
| 1 | CS AIR & HEAT | 64 | 5.0★ (251) | Greenville | 24/7 |
| 2 | Bacon Plumbing Heating Air Electric | 62 | 4.9★ (7,092) | Rockwall, 25 mi away | 24/7 |
| 3 | Rockwall Electric Heating and Air | 61 | 5.0★ (338) | Royse City, 14 mi away | 24/7 |
| 4 | Everflow Plumbing, Heating & Air | 60 | 4.9★ (408) | Royse City, 16 mi away | 24/7 |
| 5 | Crazy AC Guy | 59 | 4.8★ (367) | Anna, 20 mi away | 24/7 |
| 6 | The Comfort Pros, LLC | 59 | 5.0★ (229) | Anna, 20 mi away | 24/7 |
| 7 | Reliable Heating Solutions | 59 | 5.0★ (6) | Greenville | 24/7 |
| 8 | One Hour Heating & Air Conditioning | 59 | 4.7★ (778) | Rockwall, 24 mi away | 24/7 |
| 9 | Brannam Mechanical | 58 | 5.0★ (4) | Greenville | 24/7 |
| 10 | Ducts in a Row Heating & Air LLC | 58 | 5.0★ (26) | Wylie, 10 mi away | 24/7 |
24/7 hours mean the business says its phone is answered around the clock. Arrival time depends on where the crew is. Ask for an arrival window when you call.
Open 24/7 · 5.0 from 251 Google reviews
#2Bacon Plumbing Heating Air Electric
Open 24/7 · 4.9 from 7,092 Google reviews
#3Rockwall Electric Heating and Air
Open 24/7 · 5.0 from 338 Google reviews
#4Everflow Plumbing, Heating & Air
Open 24/7 · 4.9 from 408 Google reviews
Open 24/7 · 4.8 from 367 Google reviews
Open 24/7 · 5.0 from 229 Google reviews
Open 24/7 · 5.0 from 6 Google reviews
#8One Hour Heating & Air Conditioning
Open 24/7 · 4.7 from 778 Google reviews
24/7 first, then same-day service, then the rest. Each group is in CR Score order on emergency weights. The full ranking of all 94 is on the HVAC contractors page.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 because of its Google rating and trade focus: 5.0★ from 251 Google reviews, listed on Google as “HVAC contractor”.
Based in Rockwall, 25 mi away
Ranked #2 because of its Google rating and review volume: 4.9★ from 7,092 Google reviews.
Based in Royse City, 14 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 338 Google reviews, listed on Google as “HVAC contractor”.
Based in Royse City, 16 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 408 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Anna, 20 mi away
Ranked #5 because of its Google rating and trade focus: 4.8★ from 367 Google reviews, listed on Google as “HVAC contractor”.
Based in Anna, 20 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 229 Google reviews, listed on Google as “HVAC contractor”.
Based in Greenville
Ranked #7 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “HVAC contractor”.
Based in Rockwall, 24 mi away
Ranked #8 because of its Google rating and trade focus: 4.7★ from 778 Google reviews, listed on Google as “HVAC contractor”.
Based in Greenville
Ranked #9 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Wylie, 10 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 26 Google reviews, listed on Google as “HVAC contractor”.
Based in Greenville
Ranked #11 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “HVAC contractor”.
Based in Greenville
Ranked #12 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “HVAC contractor”.
Based in Rockwall, 19 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 84 Google reviews, listed on Google as “HVAC contractor”.
Based in Anna, 21 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 97 Google reviews, listed on Google as “HVAC contractor”.
Based in Wylie, 25 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 175 Google reviews, listed on Google as “HVAC contractor”.
Based in Rockwall, 25 mi away
Ranked #16 because of its Google rating and trade focus: 4.8★ from 260 Google reviews, listed on Google as “HVAC contractor”.
Based in Royse City, 17 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 44 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Princeton, 23 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 85 Google reviews, listed on Google as “HVAC contractor”.
Based in Princeton, 24 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 99 Google reviews, listed on Google as “HVAC contractor”.
Based in Rockwall, 23 mi away
Ranked #20 because of its Google rating and trade focus: 4.8★ from 97 Google reviews, listed on Google as “HVAC contractor”.
Based in Fate, 16 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “HVAC contractor”.
Based in Fate, 23 mi away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 46 Google reviews, listed on Google as “HVAC contractor”.
Based in Rockwall, 24 mi away
Ranked #23 because of its Google rating and trade focus: 4.8★ from 54 Google reviews, listed on Google as “HVAC contractor”.
Based in Royse City, 21 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 16 Google reviews, listed on Google as “HVAC contractor”.
Based in Rockwall, 24 mi away
Ranked #25 because of its Google rating and trade focus: 4.7★ from 35 Google reviews, listed on Google as “HVAC contractor”.
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile.
Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 HVAC contractors are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.
Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from |
|---|---|---|
| Reputation | 15% | Google star rating, adjusted for how many reviews back it |
| Credentials | 15% | Active state license, bond and workers’ comp on file |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list |
| Recency | 5% | Share of reviews from the last 12 months |
| Availability | 15% | Weekly open hours, Saturday, Sunday, 24/7 or same-day |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) |
| Proximity | 5% | Based in the city scores highest, less the farther away it is |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are |