Top 50 of 1,115 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 Norristown: Horizon Services - Air Conditioning, Heating, Plumbing, & Electrical, 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 | Horizon Services - Air Conditioning, Heating, Plumbing, & Electrical | 67 | 4.7★ (10,656) | Audubon, 4 mi away | 24/7 |
| 2 | Lowry Services | 64 | 4.8★ (4,471) | Harleysville, 10 mi away | 24/7 |
| 3 | Davis Modern Heating & Cooling | 64 | 4.8★ (616) | Norristown | 24/7 |
| 4 | IT Landes Home Service Team | 64 | 4.9★ (2,388) | Harleysville, 10 mi away | 24/7 |
| 5 | Adam Home Services | 64 | 4.8★ (3,232) | Broomall, 11 mi away | 24/7 |
| 6 | Quality Degree, Inc. | 64 | 4.9★ (2,683) | Phoenixville, 12 mi away | 24/7 |
| 7 | Mattioni Plumbing, Heating & Cooling | 64 | 5.0★ (667) | King of Prussia, 6 mi away | 24/7 |
| 8 | Harris Plumbing, Heating, Air & Electrical | 63 | 4.9★ (3,594) | Media, 14 mi away | 24/7 |
| 9 | One Hour Heating & Air Conditioning of Lansdale | 63 | 4.9★ (928) | Lansdale, 7 mi away | 24/7 |
| 10 | Christian Heating, Cooling, Plumbing and Electrical | 63 | 4.9★ (648) | King of Prussia, 6 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.
#1Horizon Services - Air Conditioning, Heating, Plumbing, & Electrical
Open 24/7 · 4.7 from 10,656 Google reviews
Open 24/7 · 4.8 from 4,471 Google reviews
#3Davis Modern Heating & Cooling
Open 24/7 · 4.8 from 616 Google reviews
Open 24/7 · 4.9 from 2,388 Google reviews
Open 24/7 · 4.8 from 3,232 Google reviews
Open 24/7 · 4.9 from 2,683 Google reviews
#7Mattioni Plumbing, Heating & Cooling
Open 24/7 · 5.0 from 667 Google reviews
#8Harris Plumbing, Heating, Air & Electrical
Open 24/7 · 4.9 from 3,594 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 1,115 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 Norristown
Based in Audubon, 4 mi away
Ranked #1 because of its Google rating and trade focus: 4.7★ from 10,656 Google reviews, listed on Google as “HVAC contractor”.
Based in Harleysville, 10 mi away
Ranked #2 because of its Google rating and trade focus: 4.8★ from 4,471 Google reviews, listed on Google as “HVAC contractor”.
Based in Norristown
Ranked #3 because of its Google rating and trade focus: 4.8★ from 616 Google reviews, listed on Google as “HVAC contractor”.
Based in Harleysville, 10 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 2,388 Google reviews, listed on Google as “HVAC contractor”.
Based in Broomall, 11 mi away
Ranked #5 because of its Google rating and trade focus: 4.8★ from 3,232 Google reviews, listed on Google as “HVAC contractor”.
Based in Phoenixville, 12 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 2,683 Google reviews, listed on Google as “HVAC contractor”.
Based in King of Prussia, 6 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 667 Google reviews, listed on Google as “HVAC contractor”.
Based in Media, 14 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 3,594 Google reviews, listed on Google as “HVAC contractor”.
Based in Lansdale, 7 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 928 Google reviews, listed on Google as “HVAC contractor”.
Based in King of Prussia, 6 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 648 Google reviews, listed on Google as “HVAC contractor”.
Based in West Chester, 15 mi away
Ranked #11 because of its Google rating and trade focus: 4.9★ from 3,053 Google reviews, listed on Google as “HVAC contractor”.
Based in Woodbury, 22 mi away
Ranked #12 because of its Google rating and review volume: 4.9★ from 11,049 Google reviews.
Based in Kulpsville, 8 mi away
Ranked #13 because of its Google rating and trade focus: 4.8★ from 1,035 Google reviews, listed on Google as “HVAC contractor”.
Based in West Chester, 16 mi away
Ranked #14 because of its Google rating and trade focus: 4.9★ from 3,146 Google reviews, listed on Google as “HVAC contractor”.
Based in Souderton, 12 mi away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 1,236 Google reviews, listed on Google as “Furnace repair service”.
Based in Hatboro, 17 mi away
Ranked #16 because of its Google rating and trade focus: 4.8★ from 3,972 Google reviews, listed on Google as “HVAC contractor”.
Based in Philadelphia, 11 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 980 Google reviews, listed on Google as “HVAC contractor”.
Based in Hatboro, 16 mi away
Ranked #18 because of its Google rating and trade focus: 4.9★ from 2,538 Google reviews, listed on Google as “HVAC contractor”.
Based in Ardmore, 13 mi away
Ranked #19 because of its Google rating and trade focus: 4.9★ from 1,287 Google reviews, listed on Google as “HVAC contractor”.
Based in Norristown
Ranked #20 because of its Google rating and trade focus: 4.9★ from 124 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Chester Springs, 11 mi away
Ranked #21 because of its Google rating and trade focus: 4.9★ from 765 Google reviews, listed on Google as “HVAC contractor”.
Based in Ardmore, 10 mi away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 617 Google reviews, listed on Google as “HVAC contractor”.
Based in Dresher, 12 mi away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 853 Google reviews, listed on Google as “HVAC contractor”.
Based in Willow Grove, 13 mi away
Ranked #24 because of its Google rating and trade focus: 4.9★ from 1,014 Google reviews, listed on Google as “HVAC contractor”.
Based in Blue Bell, 7 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 282 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 |