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Emergency HVAC Contractors in Longwood, FL (2026)

Top 50 of 753 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

    #1 for emergency heating and cooling in Longwood: American Air, Plumbing, and Electrical, 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 Longwood at a glance

Top emergency HVAC contractors in Longwood at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1American Air, Plumbing, and Electrical664.9★ (8,447)Sanford, 7 mi away24/7
2Cool Today - Cooling, Plumbing, Electrical664.8★ (4,827)Altamonte Springs, 4 mi away24/7
3Mechanical One665.0★ (2,454)Altamonte Springs, 4 mi away24/7
4Rainaldi Home Services644.8★ (5,502)Orlando, 10 mi away24/7
5Pro-Tech Air Conditioning & Plumbing Service644.9★ (1,184)Lake Mary, 4 mi away24/7
6Frank Gay Residential Services644.6★ (8,222)Orlando, 10 mi away24/7
7Pro-Tech Air Conditioning & Plumbing Service644.8★ (2,898)Winter Park, 9 mi away24/7
8Pro-Tech Air Conditioning & Plumbing Service644.6★ (981)Longwood24/7
9Clear Comfort645.0★ (1,046)Horizon West, 7 mi away24/7
10Del-Air Heating, Air Conditioning, Plumbing and Electrical644.5★ (5,225)Sanford, 7 mi away24/7

Call an emergency HVAC contractor in Longwood 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.

The 50 emergency HVAC contractors in Longwood, 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 753 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.

  3. #3 Mechanical One

    Based in Altamonte Springs, 4 mi away

    66/100CR Score

    Ranked #3 because of its Google rating and trade focus: 5.0★ from 2,454 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 2,454 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    217 N Westmonte Dr #1007, Altamonte Springs, FL 32714
    View profile for Mechanical One(407) 220-1780

  9. #9 Clear Comfort

    Based in Horizon West, 7 mi away

    64/100CR Score

    Ranked #9 because of its Google rating and trade focus: 5.0★ from 1,046 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 1,046 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for Clear Comfort(407) 408-0776

  12. #12 Mills Air Inc

    Based in Orlando, 8 mi away

    64/100CR Score

    Ranked #12 because of its Google rating and trade focus: 4.7★ from 2,318 Google reviews, listed on Google as “HVAC contractor”.

    • 4.7★ from 2,318 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    6502 Forest City Rd, Orlando, FL 32810
    View profile for Mills Air Inc(407) 277-1159

  13. #13 E&G HVAC services

    Based in Winter Springs, 2 mi away

    63/100CR Score

    Ranked #13 because of its Google rating and trade focus: 4.8★ from 532 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 532 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    430 Sheoah Blvd #218, Winter Springs, FL 32708
    View profile for E&G HVAC services(407) 960-6198

  18. #18 Mechanical One

    Based in Altamonte Springs, 4 mi away

    63/100CR Score

    Ranked #18 because of its Google rating and trade focus: 5.0★ from 293 Google reviews, listed on Google as “Air conditioning contractor”.

    • 5.0★ from 293 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    307 Cranes Roost Blvd #2010, Altamonte Springs, FL 32701
    View profile for Mechanical One(407) 439-0998

  21. #21 ARS / Rescue Rooter

    Based in Sanford, 8 mi away

    62/100CR Score

    Ranked #21 because of its Google rating and trade focus: 4.3★ from 3,758 Google reviews, listed on Google as “HVAC contractor”.

    • 4.3★ from 3,758 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    4150 Church St Suite 1048, Sanford, FL 32771
    View profile for ARS / Rescue Rooter(407) 426-4964

  22. #22 Belle Air

    Based in Orlando, 13 mi away

    62/100CR Score

    Ranked #22 because of its Google rating and trade focus: 4.9★ from 1,733 Google reviews, listed on Google as “Heating contractor”.

    • 4.9★ from 1,733 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    379 W Michigan St Ste 200, Orlando, FL 32806
    View profile for Belle Air(407) 543-2050

  23. #23 R & A Industries

    Based in Oviedo, 8 mi away

    62/100CR Score

    Ranked #23 because of its Google rating and trade focus: 4.9★ from 603 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 603 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    306 Aulin Ave, Oviedo, FL 32765
    View profile for R & A Industries(407) 384-0034

  25. #25 Captain Comfort

    Based in Longwood

    62/100CR Score

    Ranked #25 because of its Google rating and trade focus: 5.0★ from 112 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 112 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    442 Raymond Ave, Longwood, FL 32750
    View profile for Captain Comfort(407) 904-4376

Top 50 of 753 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.

HVAC contractors in Longwood, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Carpenter’s Cooling, LLC625.0★ (435)8 mi
27ABC Air Conditioning and Heating Specialist- Oviedo624.9★ (478)8 mi
28Energy Masters Air624.9★ (117)In Longwood
29Sun City624.9★ (172)3 mi
30Armstrong Air & Electric624.9★ (2,186)17 mi
31Del-Air Heating, Air Conditioning, Plumbing and Electrical624.7★ (3,970)18 mi
32Mechanical One of Orlando - Air Conditioning, Plumbing and Electrical625.0★ (1,083)15 mi
33ProMag Energy Group A/C & Heating, Inc.624.7★ (1,341)12 mi
34Swift Brothers Plumbing, Heating & Air624.8★ (302)6 mi
354 Seasons Air Conditioning and Heating614.7★ (576)9 mi
36Air Flow Designs Heating & Air Conditioning614.4★ (448)3 mi
37Ferran Air Conditioning, Electrical & Plumbing614.7★ (1,254)13 mi
38Greens Energy HVAC & Fuel614.7★ (954)11 mi
39A/C Mechanix Heat & Air614.4★ (231)In Longwood
40High Tech Air Conditioning615.0★ (268)9 mi
41Arctic Cool Inc614.8★ (107)2 mi
42Autumn Air Conditioning and Heating LLC615.0★ (756)15 mi
43Iron Air and Heat614.9★ (236)8 mi
44United Air Temp614.8★ (298)8 mi
45Cool Baby Air Conditioning and Heating615.0★ (84)4 mi
46Benzah Vent Cleaning LLC615.0★ (236)10 mi
47Pro-Tech Air Conditioning & Plumbing Service, Inc614.9★ (1,072)18 mi
48Complete Air Mechanical613.9★ (476)In Longwood
49Rinaldi's Energy Solutions614.7★ (1,030)15 mi
50ABC Cleaning Inc. of Orlando614.9★ (349)12 mi

How we ranked emergency HVAC contractors in Longwood

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.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed from
Reputation15%Google star rating, adjusted for how many reviews back it
Credentials15%Active state license, bond and workers’ comp on file
Review volume10%Number of Google reviews, compared with the most-reviewed business on the list
Recency5%Share of reviews from the last 12 months
Availability15%Weekly open hours, Saturday, Sunday, 24/7 or same-day
Trade focus10%How clearly the business does this trade (its Google category and name)
Proximity5%Based in the city scores highest, less the farther away it is
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodically
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there are

Emergency HVAC contractors in Longwood: questions

Which HVAC contractors in Longwood are open 24/7?

25 on this list post 24/7 hours, including American Air, Plumbing, and Electrical, Cool Today - Cooling, Plumbing, Electrical, Mechanical One, Rainaldi Home Services and Pro-Tech Air Conditioning & Plumbing Service.

Who is ranked #1 for emergency heating and cooling in Longwood, FL?

American Air, Plumbing, and Electrical is #1, with a CR Score of 66 out of 100 on emergency weights.

How are emergency HVAC contractors in Longwood 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?

25 of the 25 businesses ranked in full list a phone number. Tap Call to dial it.

Update log for Longwood

  1. October 2026: CR Scores recalculated for 753 hvac contractors serving Longwood.
  2. October 2026: 2 duplicate listings merged.

More emergency and heating and cooling pages