Top 50 of 52 HVAC contractors, in emergency orderUpdated 0 paid placements in this rankingHow we rank
18 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 Blacksburg: McGrady Perdue Heating & Cooling, 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 | McGrady Perdue Heating & Cooling | 64 | 4.9★ (894) | Christiansburg, 7 mi away | 24/7 |
| 2 | New River Heating & Air | 61 | 4.8★ (676) | Radford, 13 mi away | 24/7 |
| 3 | Three Rivers Heating & Air | 61 | 5.0★ (43) | Blacksburg | 24/7 |
| 4 | Service Experts Heating & Air Conditioning | 61 | 4.8★ (1,987) | Salem, 21 mi away | 24/7 |
| 5 | Southern Trust Home Services: Heating, A/C, Plumbing, Drains & Electrical | 60 | 4.7★ (2,956) | Roanoke, 24 mi away | 24/7 |
| 6 | Wisler Plumbing, Heating, Cooling & Electric | 60 | 4.9★ (620) | Salem, 20 mi away | 24/7 |
| 7 | Elite AC & Heating | 59 | 4.9★ (44) | Christiansburg, 7 mi away | 24/7 |
| 8 | Air Doctor | 58 | 5.0★ (17) | Christiansburg, 7 mi away | 24/7 |
| 9 | Prillaman Mechanical, Htg., & A/C | 58 | 4.8★ (282) | Salem, 21 mi away | 24/7 |
| 10 | Radford Mechanical LLC | 58 | 5.0★ (3) | Blacksburg | 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.
#1McGrady Perdue Heating & Cooling
Open 24/7 · 4.9 from 894 Google reviews
Open 24/7 · 4.8 from 676 Google reviews
Open 24/7 · 5.0 from 43 Google reviews
#4Service Experts Heating & Air Conditioning
Open 24/7 · 4.8 from 1,987 Google reviews
#5Southern Trust Home Services: Heating, A/C, Plumbing, Drains & Electrical
Open 24/7 · 4.7 from 2,956 Google reviews
#6Wisler Plumbing, Heating, Cooling & Electric
Open 24/7 · 4.9 from 620 Google reviews
Open 24/7 · 4.9 from 44 Google reviews
Open 24/7 · 5.0 from 17 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 52 is on the HVAC contractors page.
Ranked #1 because of its Google rating and trade focus: 4.9★ from 894 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Radford, 13 mi away
Ranked #2 because of its Google rating and trade focus: 4.8★ from 676 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Blacksburg
Ranked #3 because of its Google rating and trade focus: 5.0★ from 43 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Salem, 21 mi away
Ranked #4 because of its Google rating and trade focus: 4.8★ from 1,987 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Roanoke, 24 mi away
Ranked #5 because of its Google rating and trade focus: 4.7★ from 2,956 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Salem, 20 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 620 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Christiansburg, 7 mi away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 44 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Christiansburg, 7 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Salem, 21 mi away
Ranked #9 because of its Google rating and trade focus: 4.8★ from 282 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Blacksburg
Ranked #10 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Salem, 21 mi away
Ranked #11 because of its Google rating and trade focus: 4.7★ from 148 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Salem, 20 mi away
Ranked #12 because of its Google rating and trade focus: 4.8★ from 53 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Pulaski, 25 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 46 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Radford, 16 mi away
Ranked #14 because of its Google rating and trade focus: 4.0★ from 7 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Roanoke, 24 mi away
Ranked #15 because of its Google rating and trade focus: 4.8★ from 24 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Cave Spring, 20 mi away
Ranked #16 because of its Google rating and trade focus: 4.0★ from 4 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Pulaski, 20 mi away
Ranked #17 because of its Google rating and trade focus: 2.6★ from 5 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Roanoke, 23 mi away
Ranked #18 because of its Google rating and trade focus: 2.8★ from 11 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Cave Spring, 15 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 91 Google reviews, listed on Google as “HVAC contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Christiansburg, 6 mi away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 2,339 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Goose Creek, 15 mi away
Ranked #21 because of its Google rating and review volume: 4.9★ from 8,100 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Roanoke, 22 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Christiansburg, 7 mi away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 244 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Christiansburg, 7 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 148 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Salem, 19 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
#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 |