Top 50 of 422 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 Castle Shannon: CALFO Home Services, 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 | CALFO Home Services | 67 | 4.8★ (3,299) | Pittsburgh, 4 mi away | 24/7 |
| 2 | J&A Heating, Cooling, Plumbing, & Electrical | 67 | 4.8★ (4,278) | West Mifflin, 5 mi away | 24/7 |
| 3 | Gillece Services | 66 | 4.5★ (3,864) | Bridgeville, 5 mi away | 24/7 |
| 4 | Mark Allen Service Experts | 66 | 4.8★ (1,043) | Bethel Park, 1 mi away | 24/7 |
| 5 | One Hour Heating & Air | 66 | 4.9★ (1,068) | Bethel Park, 3 mi away | 24/7 |
| 6 | Boehmer Heating & Cooling | 65 | 4.8★ (1,350) | Pittsburgh, 4 mi away | 24/7 |
| 7 | Denillo Heating & Cooling, Inc. | 65 | 4.9★ (707) | Bethel Park, 3 mi away | 24/7 |
| 8 | Sureway Heating Cooling Plumbing | 64 | 4.9★ (608) | Bridgeville, 5 mi away | 24/7 |
| 9 | Armstrong Comfort Solutions | 64 | 4.9★ (1,265) | Pittsburgh, 10 mi away | 24/7 |
| 10 | Beverly Services | 64 | 4.7★ (603) | Bethel Park, 3 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 · 4.8 from 3,299 Google reviews
#2J&A Heating, Cooling, Plumbing, & Electrical
Open 24/7 · 4.8 from 4,278 Google reviews
Open 24/7 · 4.5 from 3,864 Google reviews
Open 24/7 · 4.8 from 1,043 Google reviews
Open 24/7 · 4.9 from 1,068 Google reviews
Open 24/7 · 4.8 from 1,350 Google reviews
#7Denillo Heating & Cooling, Inc.
Open 24/7 · 4.9 from 707 Google reviews
#8Sureway Heating Cooling Plumbing
Open 24/7 · 4.9 from 608 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 422 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: 4.8★ from 3,299 Google reviews, listed on Google as “HVAC contractor”.
Based in West Mifflin, 5 mi away
Ranked #2 because of its Google rating and review volume: 4.8★ from 4,278 Google reviews.
Based in Bridgeville, 5 mi away
Ranked #3 because of its Google rating and trade focus: 4.5★ from 3,864 Google reviews, listed on Google as “HVAC contractor”.
Based in Bethel Park, 1 mi away
Ranked #4 because of its Google rating and trade focus: 4.8★ from 1,043 Google reviews, listed on Google as “HVAC contractor”.
Based in Bethel Park, 3 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 1,068 Google reviews, listed on Google as “HVAC contractor”.
Based in Pittsburgh, 4 mi away
Ranked #6 because of its Google rating and trade focus: 4.8★ from 1,350 Google reviews, listed on Google as “HVAC contractor”.
Based in Bethel Park, 3 mi away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 707 Google reviews, listed on Google as “HVAC contractor”.
Based in Bridgeville, 5 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 608 Google reviews, listed on Google as “HVAC contractor”.
Based in Pittsburgh, 10 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 1,265 Google reviews, listed on Google as “HVAC contractor”.
Based in Bethel Park, 3 mi away
Ranked #10 because of its Google rating and trade focus: 4.7★ from 603 Google reviews, listed on Google as “HVAC contractor”.
Based in McKees Rocks, 8 mi away
Ranked #11 because of its Google rating and trade focus: 4.8★ from 1,030 Google reviews, listed on Google as “HVAC contractor”.
Based in Bethel Park, 20 mi away
Ranked #12 because of its Google rating and review volume: 5.0★ from 4,264 Google reviews.
Based in Pittsburgh, 12 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 1,453 Google reviews, listed on Google as “HVAC contractor”.
Based in Bethel Park, 4 mi away
Ranked #14 because of its Google rating and trade focus: 4.9★ from 307 Google reviews, listed on Google as “HVAC contractor”.
Based in Bethel Park, 1 mi away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 168 Google reviews, listed on Google as “HVAC contractor”.
Based in Fox Chapel, 14 mi away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 1,139 Google reviews, listed on Google as “HVAC contractor”.
Based in Baldwin, 2 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 126 Google reviews, listed on Google as “HVAC contractor”.
Based in Pittsburgh, 5 mi away
Ranked #18 because of its Google rating and trade focus: 4.9★ from 215 Google reviews, listed on Google as “HVAC contractor”.
Based in Ambridge, 18 mi away
Ranked #19 because of its Google rating and trade focus: 4.9★ from 1,647 Google reviews, listed on Google as “HVAC contractor”.
Based in Pittsburgh, 4 mi away
Ranked #20 because of its Google rating and trade focus: 4.7★ from 232 Google reviews, listed on Google as “HVAC contractor”.
Based in Pittsburgh, 16 mi away
Ranked #21 because of its Google rating and trade focus: 4.8★ from 1,123 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Pittsburgh, 2 mi away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 89 Google reviews, listed on Google as “HVAC contractor”.
Based in Pittsburgh, 11 mi away
Ranked #23 because of its Google rating and trade focus: 4.8★ from 418 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Pittsburgh, 13 mi away
Ranked #24 because of its Google rating and trade focus: 4.9★ from 476 Google reviews, listed on Google as “HVAC contractor”.
Based in Pittsburgh, 1 mi away
Ranked #25 because of its Google rating and trade focus: 4.5★ from 124 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 |