Top 50 of 297 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 Spring Ridge: Wenbrooke Services - Electrical, Plumbing, Heating and Air, 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 | Wenbrooke Services - Electrical, Plumbing, Heating and Air | 64 | 4.8★ (1,208) | Frederick, 5 mi away | 24/7 |
| 2 | Larry & Sons Plumbing, Heating, Cooling, Drain & Electrical | 64 | 4.8★ (932) | Frederick, 4 mi away | 24/7 |
| 3 | Warner Service | 64 | 4.8★ (537) | Frederick, 2 mi away | 24/7 |
| 4 | Frederick Air Inc | 64 | 4.8★ (414) | Frederick, 2 mi away | 24/7 |
| 5 | GAC Services | 63 | 4.9★ (6,908) | Gaithersburg, 20 mi away | 24/7 |
| 6 | Markool Heating Cooling Plumbing | 63 | 4.9★ (547) | Frederick, 7 mi away | 24/7 |
| 7 | United Air Temp | 63 | 4.7★ (928) | Frederick, 7 mi away | 24/7 |
| 8 | Airtron Heating & Air Conditioning | 63 | 4.5★ (724) | Frederick, 4 mi away | 24/7 |
| 9 | Urbana HVAC | 63 | 5.0★ (182) | Ballenger Creek, 3 mi away | 24/7 |
| 10 | closed | 62 | 4.8★ (240) | Walkersville, 4 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.
#1Wenbrooke Services - Electrical, Plumbing, Heating and Air
Open 24/7 · 4.8 from 1,208 Google reviews
#2Larry & Sons Plumbing, Heating, Cooling, Drain & Electrical
Open 24/7 · 4.8 from 932 Google reviews
Open 24/7 · 4.8 from 537 Google reviews
Open 24/7 · 4.8 from 414 Google reviews
Open 24/7 · 4.9 from 6,908 Google reviews
#6Markool Heating Cooling Plumbing
Open 24/7 · 4.9 from 547 Google reviews
Open 24/7 · 4.7 from 928 Google reviews
#8Airtron Heating & Air Conditioning
Open 24/7 · 4.5 from 724 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 297 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 in Spring Ridge
Based in Frederick, 5 mi away
Ranked #1 because of its Google rating and trade focus: 4.8★ from 1,208 Google reviews, listed on Google as “HVAC contractor”.
Based in Frederick, 4 mi away
Ranked #2 because of its Google rating and trade focus: 4.8★ from 932 Google reviews, listed on Google as “HVAC contractor”.
Based in Frederick, 2 mi away
Ranked #3 because of its Google rating and trade focus: 4.8★ from 537 Google reviews, listed on Google as “HVAC contractor”.
Based in Frederick, 2 mi away
Ranked #4 because of its Google rating and trade focus: 4.8★ from 414 Google reviews, listed on Google as “HVAC contractor”.
Based in Gaithersburg, 20 mi away
Ranked #5 because of its Google rating and review volume: 4.9★ from 6,908 Google reviews.
Based in Frederick, 7 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 547 Google reviews, listed on Google as “HVAC contractor”.
Based in Frederick, 7 mi away
Ranked #7 because of its Google rating and trade focus: 4.7★ from 928 Google reviews, listed on Google as “HVAC contractor”.
Based in Frederick, 4 mi away
Ranked #8 because of its Google rating and trade focus: 4.5★ from 724 Google reviews, listed on Google as “HVAC contractor”.
Based in Ballenger Creek, 3 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 182 Google reviews, listed on Google as “HVAC contractor”.
Based in Walkersville, 4 mi away
Ranked #10 because of its Google rating and trade focus: 4.8★ from 240 Google reviews, listed on Google as “HVAC contractor”.
Based in Mount Airy, 12 mi away
Ranked #11 because of its Google rating and trade focus: 4.7★ from 852 Google reviews, listed on Google as “HVAC contractor”.
Based in Gaithersburg, 19 mi away
Ranked #12 because of its Google rating and trade focus: 4.9★ from 1,701 Google reviews, listed on Google as “HVAC contractor”.
Based in Frederick, 4 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 111 Google reviews, listed on Google as “HVAC contractor”.
Based in Gaithersburg, 19 mi away
Ranked #14 because of its Google rating and trade focus: 4.8★ from 2,083 Google reviews, listed on Google as “HVAC contractor”.
Based in Frederick, 5 mi away
Ranked #15 because of its Google rating and trade focus: 4.8★ from 165 Google reviews, listed on Google as “HVAC contractor”.
Based in Rockville, 24 mi away
Ranked #16 because of its Google rating and trade focus: 4.7★ from 5,985 Google reviews, listed on Google as “HVAC contractor”.
Based in Leesburg, 23 mi away
Ranked #17 because of its Google rating and trade focus: 4.8★ from 3,718 Google reviews, listed on Google as “HVAC contractor”.
Based in Gaithersburg, 19 mi away
Ranked #18 because of its Google rating and trade focus: 4.8★ from 1,700 Google reviews, listed on Google as “HVAC contractor”.
Based in Frederick, 3 mi away
Ranked #19 because of its Google rating and trade focus: 4.2★ from 364 Google reviews, listed on Google as “HVAC contractor”.
Based in Ashburn, 24 mi away
Ranked #20 because of its Google rating and trade focus: 4.8★ from 2,314 Google reviews, listed on Google as “HVAC contractor”.
Based in Gaithersburg, 19 mi away
Ranked #21 because of its Google rating and trade focus: 4.8★ from 666 Google reviews, listed on Google as “HVAC contractor”.
Based in Eldersburg, 23 mi away
Ranked #22 because of its Google rating and trade focus: 4.7★ from 1,847 Google reviews, listed on Google as “HVAC contractor”.
Based in Clarksburg, 19 mi away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 361 Google reviews, listed on Google as “HVAC contractor”.
Based in Rockville, 24 mi away
Ranked #24 because of its Google rating and trade focus: 4.7★ from 1,351 Google reviews, listed on Google as “HVAC contractor”.
Based in Westminster, 24 mi away
Ranked #25 because of its Google rating and trade focus: 4.9★ from 679 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 |