64/100CR Score
Ranked #1 because of its Google rating and review volume: 4.8★ from 6,771 Google reviews.
- 4.8★ from 6,771 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 260 Smith St, Farmingdale, NY 11735
Emergency HVAC Contractors in Nesconset, NY (2026)
Top 50 of 752 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.
If you smell gas, leave the building now and call your gas utility or 911 from outside.
The short answer
- 1
#1 for emergency heating and cooling in Nesconset: Universe Home Services, open 24/7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
Top emergency HVAC contractors in Nesconset at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours |
|---|---|---|---|---|---|
| 1 | Universe Home Services | 64 | 4.8★ (6,771) | Farmingdale, 15 mi away | 24/7 |
| 2 | Varsity Home Service | 64 | 4.7★ (1,230) | Bohemia, 5 mi away | 24/7 |
| 3 | Energywise Inc | 64 | 4.9★ (514) | Ronkonkoma, 4 mi away | 24/7 |
| 4 | Cool Power LLC | 64 | 4.9★ (630) | Ronkonkoma, 6 mi away | 24/7 |
| 5 | Kintech Heating, Cooling & Plumbing | 64 | 5.0★ (633) | Port Jefferson Station, 7 mi away | 24/7 |
| 6 | Apple Air Heating Cooling Electric and Plumbing | 63 | 4.8★ (4,690) | Farmingdale, 17 mi away | 24/7 |
| 7 | Sunray Services - Air Conditioning and Heating | 63 | 4.5★ (494) | Nesconset | 24/7 |
| 8 | US Air Conditioning & Heating | 63 | 4.8★ (582) | Port Jefferson Station, 7 mi away | 24/7 |
| 9 | Tragar Home Services | 63 | 4.9★ (3,757) | Hicksville, 20 mi away | 24/7 |
| 10 | Dashing Dan's Plumbing & Heating Inc. | 62 | 4.9★ (764) | West Islip, 13 mi away | 24/7 |
Call an emergency HVAC contractor in Nesconset now
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.
- #1Call (516) 755-3862
Open 24/7 · 4.8 from 6,771 Google reviews
- #2Call (631) 305-2227
Open 24/7 · 4.7 from 1,230 Google reviews
- #3Call (631) 500-5300
Open 24/7 · 4.9 from 514 Google reviews
- #4Call (631) 913-8905
Open 24/7 · 4.9 from 630 Google reviews
- #5Call (631) 496-6646
#5Kintech Heating, Cooling & Plumbing
Open 24/7 · 5.0 from 633 Google reviews
- #6Call (516) 231-6542
#6Apple Air Heating Cooling Electric and Plumbing
Open 24/7 · 4.8 from 4,690 Google reviews
- #7Call (631) 887-5999
#7Sunray Services - Air Conditioning and Heating
Open 24/7 · 4.5 from 494 Google reviews
- #8Call (631) 473-0090
#8US Air Conditioning & Heating
Open 24/7 · 4.8 from 582 Google reviews
The 50 emergency HVAC contractors in Nesconset, ranked
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 752 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.
Based in Bohemia, 5 mi away
64/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.7★ from 1,230 Google reviews, listed on Google as “Air conditioning contractor”.
- 4.7★ from 1,230 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1610 Ocean Ave, Bohemia, NY 11716
Based in Ronkonkoma, 4 mi away
64/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 514 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 514 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2231 5th Ave Suite 26, Ronkonkoma, NY 11779
Based in Ronkonkoma, 6 mi away
64/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ from 630 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 630 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 75 Air Park Dr, Ronkonkoma, NY 11779
Based in Port Jefferson Station, 7 mi away
64/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 633 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 633 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 585 N Bicycle Path # 6, Port Jefferson Station, NY 11776
Based in Farmingdale, 17 mi away
63/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.8★ from 4,690 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 4,690 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 700 Broadhollow Rd, Farmingdale, NY 11735
Based in Nesconset
63/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.5★ from 494 Google reviews, listed on Google as “Air conditioning contractor”.
- 4.5★ from 494 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 120 Lake Ave S #13, Nesconset, NY 11767
Based in Port Jefferson Station, 7 mi away
63/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.8★ from 582 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 582 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 600 N Bicycle Path, Port Jefferson Station, NY 11776
Based in Hicksville, 20 mi away
63/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.9★ from 3,757 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 3,757 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3 Washington Pkwy, Hicksville, NY 11801
Based in West Islip, 13 mi away
62/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.9★ from 764 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 764 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 258 Higbie Ln, West Islip, NY 11795
Based in Ronkonkoma, 4 mi away
61/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.3★ from 428 Google reviews, listed on Google as “HVAC contractor”.
- 4.3★ from 428 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2221 5th Ave #2, Ronkonkoma, NY 11779
#12 Jen Air Inc
Based in Bohemia, 6 mi away
61/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.9★ from 138 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 138 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1507 Smithtown Ave #17, Bohemia, NY 11716
Based in Ronkonkoma, 4 mi away
61/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.9★ from 117 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 117 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 154-1 Remington Blvd, Ronkonkoma, NY 11779
Based in Bay Shore, 11 mi away
61/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 258 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 258 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1062 Udall Rd, Bay Shore, NY 11706
Based in Coram, 15 mi away
61/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 439 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 439 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 68 Woodville Rd, Shoreham, NY 11786
Based in Farmingdale, 17 mi away
61/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.6★ from 1,573 Google reviews, listed on Google as “HVAC contractor”.
- 4.6★ from 1,573 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 500 Bi County Blvd, Farmingdale, NY 11735
Based in Bohemia, 6 mi away
61/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.9★ from 135 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 135 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 481 Johnson Ave suite e, Bohemia, NY 11716
Based in Holtsville, 7 mi away
61/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.7★ from 191 Google reviews, listed on Google as “HVAC contractor”.
- 4.7★ from 191 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 20 Corporate Dr, Holtsville, NY 11742
Based in Coram, 7 mi away
61/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.9★ from 125 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 125 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 11 Hulse Rd, Setauket- East Setauket, NY 11733
Based in West Babylon, 14 mi away
61/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.9★ from 406 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 406 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 860 Little East Neck Rd North, West Babylon, NY 11704
Based in Yaphank, 11 mi away
61/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.4★ from 872 Google reviews, listed on Google as “HVAC contractor”.
- 4.4★ from 872 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 30 Old Dock Rd, Yaphank, NY 11980
Based in Amityville, 18 mi away
61/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.9★ from 797 Google reviews, listed on Google as “Heating contractor”.
- 4.9★ from 797 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 76 Montauk Hwy, Amityville, NY 11701
Based in Deer Park, 12 mi away
61/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.8★ from 328 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 328 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 561 Acorn St unit d, Deer Park, NY 11729
Based in Brentwood, 6 mi away
61/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.8★ from 114 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 114 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1158 Suffolk Ave C, Brentwood, NY 11717
Based in East Farmingdale, 8 mi away
60/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.9★ from 107 Google reviews, listed on Google as “Air conditioning contractor”.
- 4.9★ from 107 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Top 50 of 752 HVAC contractors by emergency score
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile.
How we ranked emergency HVAC contractors in Nesconset
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 |
Emergency HVAC contractors in Nesconset: questions
Which HVAC contractors in Nesconset are open 24/7?
25 on this list post 24/7 hours, including Universe Home Services, Varsity Home Service, Energywise Inc, Cool Power LLC and Kintech Heating, Cooling & Plumbing.
Who is ranked #1 for emergency heating and cooling in Nesconset, NY?
Universe Home Services is #1, with a CR Score of 64 out of 100 on emergency weights.
How are emergency HVAC contractors in Nesconset ranked?
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.
What should I do before the HVAC contractor arrives?
If you smell gas, leave the building now and call your gas utility or 911 from outside.
How many emergency HVAC contractors here list a phone number?
24 of the 25 businesses ranked in full list a phone number. Tap Call to dial it.
Update log for Nesconset
- October 2026: CR Scores recalculated for 752 hvac contractors serving Nesconset.
- October 2026: 2 duplicate listings merged.