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Emergency HVAC Contractors in Naperville, IL (2026)

Top 50 of 1,509 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 Naperville: Energy Services Air Conditioning & Heating Co. & 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 Naperville at a glance

Top emergency HVAC contractors in Naperville at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Energy Services Air Conditioning & Heating Co. & Electrical654.9★ (1,929)Naperville24/7
2TR Miller Heating, Cooling, Plumbing and Electrical654.9★ (10,641)Plainfield, 9 mi away24/7
3Perfect Home Services654.7★ (5,573)Aurora, 4 mi away24/7
4Precision Today Plumbing Heating Cooling Electrical644.8★ (7,723)Carol Stream, 8 mi away24/7
5Leslie Heating, Cooling, Plumbing, & Electric644.8★ (3,089)Lombard, 8 mi away24/7
6Borter Heating & Air Conditioning Co635.0★ (1,316)Wheaton, 7 mi away24/7
7A All Temp Inc. Heating & Cooling634.8★ (602)Naperville24/7
8Nortek Environmental634.9★ (381)Naperville24/7
9McNally's Heating and Cooling634.9★ (2,593)Batavia, 11 mi away24/7
10Chris Heating & Cooling635.0★ (942)West Chicago, 8 mi away24/7

Call an emergency HVAC contractor in Naperville 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 Naperville, 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 1,509 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 Perfect Home Services

    Based in Aurora, 4 mi away

    65/100CR Score

    Ranked #3 because of its Google rating and trade focus: 4.7★ from 5,573 Google reviews, listed on Google as “HVAC contractor”.

    • 4.7★ from 5,573 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    4255 Meridian Pkwy Suite 101, Aurora, IL 60504
    View profile for Perfect Home Services(630) 519-6620

  8. #8 Nortek Environmental

    Based in Naperville

    63/100CR Score

    Ranked #8 because of its Google rating and trade focus: 4.9★ from 381 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 381 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    600 Industrial Dr #102, Naperville, IL 60563
    View profile for Nortek Environmental(630) 548-1500

  15. #15 AWE Air Water Energy

    Based in Carol Stream, 8 mi away

    63/100CR Score

    Ranked #15 because of its Google rating and trade focus: 4.8★ from 1,516 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 1,516 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    295 Carlton Dr, Carol Stream, IL 60188
    View profile for AWE Air Water Energy(630) 326-4520

  16. #16 Hall of Fame HVAC

    Based in Naperville

    63/100CR Score

    Ranked #16 because of its Google rating and trade focus: 5.0★ from 181 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 181 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    10s187 Schoger Dr Unit 66, Naperville, IL 60564
    View profile for Hall of Fame HVAC(630) 870-1264

  24. #24 ARS / Rescue Rooter

    Based in Itasca, 15 mi away

    62/100CR Score

    Ranked #24 because of its Google rating and trade focus: 4.7★ from 4,969 Google reviews, listed on Google as “HVAC contractor”.

    • 4.7★ from 4,969 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    731 District Dr, Itasca, IL 60143
    View profile for ARS / Rescue Rooter(630) 475-1987

  25. #25 Green Air Care

    Based in Naperville

    62/100CR Score

    Ranked #25 because of its Google rating and trade focus: 4.7★ from 220 Google reviews, listed on Google as “HVAC contractor”.

    • 4.7★ from 220 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    800 W 5th Ave #100H, Naperville, IL 60563
    View profile for Green Air Care(855) 930-6367

Top 50 of 1,509 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 Naperville, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26One Hour Heating & Air Conditioning of Naperville624.8★ (140)In Naperville
27Precision Air625.0★ (584)10 mi
28Comfort Masters Service Experts614.8★ (1,224)11 mi
29Comfort Services Heating & Air Conditioning614.9★ (331)6 mi
30Expert Plumbing Heating & Electrical614.7★ (153)In Naperville
31All Temp Heating and Air Conditioning- Bolingbrook615.0★ (330)8 mi
32Mel-O-Air Heating and Air Conditioning, Inc.614.9★ (268)6 mi
33Service Express Heating and Air Conditioning614.9★ (897)12 mi
34Paragon Heating, Cooling, and Tankless614.9★ (823)12 mi
35Brian's Heating & Air Conditioning614.8★ (336)7 mi
36Charles McDuffee Co. Heating & Air Conditioning614.9★ (422)9 mi
37Freedom Heating, Cooling & Electrical614.9★ (2,121)17 mi
38Glen Ellyn Heating and Cooling615.0★ (187)6 mi
39Four Seasons Heating, Air Conditioning, Plumbing, & Electric614.7★ (4,200)18 mi
40Franzen Heating & Cooling614.9★ (396)9 mi
41Goodberlet Home Services614.8★ (648)11 mi
42Jim Wagner Plumbing, Inc.614.6★ (670)8 mi
43Youngren's, Inc. Heating & Cooling614.9★ (408)10 mi
44Affordable American Air Heating, Cooling & Energy services615.0★ (250)9 mi
45Andersen Plumbing, Heating and AC Repair615.0★ (434)11 mi
46Climate Champions Inc.615.0★ (110)4 mi
47Leipart Heating and Cooling614.9★ (57)In Naperville
48Airco Heating & Cooling614.9★ (162)6 mi
49Renewed Air LLC615.0★ (162)7 mi
50Residential Heating & Cooling614.9★ (905)15 mi

How we ranked emergency HVAC contractors in Naperville

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 Naperville: questions

Which HVAC contractors in Naperville are open 24/7?

25 on this list post 24/7 hours, including Energy Services Air Conditioning & Heating Co. & Electrical, TR Miller Heating, Cooling, Plumbing and Electrical, Perfect Home Services, Precision Today Plumbing Heating Cooling Electrical and Leslie Heating, Cooling, Plumbing, & Electric.

Who is ranked #1 for emergency heating and cooling in Naperville, IL?

Energy Services Air Conditioning & Heating Co. & Electrical is #1, with a CR Score of 65 out of 100 on emergency weights.

How are emergency HVAC contractors in Naperville 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 Naperville

  1. October 2026: CR Scores recalculated for 1,509 hvac contractors serving Naperville.
  2. October 2026: 16 duplicate listings merged.

More emergency and heating and cooling pages