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Emergency HVAC Contractors in Michigan City, IN (2026)

Top 50 of 97 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 Michigan City: Summers Plumbing Heating & Cooling, 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 Michigan City at a glance

Top emergency HVAC contractors in Michigan City at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Summers Plumbing Heating & Cooling644.9★ (1,834)La Porte, 11 mi away24/7
2Home Comfort Experts644.9★ (4,299)Valparaiso, 19 mi away24/7
3Summers Plumbing Heating & Cooling634.9★ (3,188)Valparaiso, 19 mi away24/7
4Regional Plumbing Heating & Air - Michigan City624.9★ (73)Michigan City24/7
5All Seasons Heating & Air Conditioning624.8★ (357)La Porte, 11 mi away24/7
6Regional Plumbing Heating & Air614.8★ (998)Valparaiso, 19 mi away24/7
7Buck's Heating & Air614.8★ (186)Chesterton, 11 mi away24/7
8Green Air Technologies HVAC614.4★ (47)Michigan City24/7
9Clear Sky Heating & Air614.9★ (153)La Porte, 12 mi away24/7
10Maglish Plumbing, Heating, Cooling & Electrical604.6★ (788)Portage, 17 mi away24/7

Call an emergency HVAC contractor in Michigan City 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 Michigan City, 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 97 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.

  7. #7 Buck's Heating & Air

    Based in Chesterton, 11 mi away

    61/100CR Score

    Ranked #7 because of its Google rating and trade focus: 4.8★ from 186 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 186 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    403 S Calumet Rd, Chesterton, IN 46304
    View profile for Buck's Heating & Air(219) 406-8758

  13. #13 All-Star Service

    Based in Valparaiso, 22 mi away

    60/100CR Score

    Ranked #13 because of its Google rating and trade focus: 4.8★ from 526 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 526 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    519 W US Hwy 30, Valparaiso, IN 46385
    View profile for All-Star Service(219) 464-4919

  16. #16 Crown Wheele HVAC

    Based in Valparaiso, 19 mi away

    59/100CR Score

    Ranked #16 because of its Google rating and trade focus: 4.8★ from 259 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 259 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    750 Franklin St, Valparaiso, IN 46383
    View profile for Crown Wheele HVAC(219) 462-4328

  20. #20 ASM Refrigeration

    Based in La Porte, 9 mi away

    58/100CR Score

    Ranked #20 because of its Google rating and trade focus: 4.9★ from 21 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 21 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    105n S 400 W, La Porte, IN 46350
    View profile for ASM Refrigeration(574) 400-9711

  22. #22 ECO HVAC

    Based in La Porte, 11 mi away

    58/100CR Score

    Ranked #22 because of its Google rating and trade focus: 5.0★ from 24 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 24 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    374 Hawthorne St, La Porte, IN 46350
    View profile for ECO HVAC(347) 528-3093

Top 50 of 97 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 Michigan City, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Taniyah's Heating & Cooling Service583.7★ (3)In Michigan City
27Frostique HVAC Repair Services583.8★ (37)8 mi
28Veterans First Air Conditioning and Heating575.0★ (16)11 mi
29ICC Mechanical Services / ICC Cold Storage Products564.5★ (34)17 mi
30Better Home Service564.0★ (4)9 mi
31All-Star Service554.6★ (51)23 mi
32Regional Plumbing Heating & Air554.6★ (22)19 mi
33All Brands Heating & Cooling555.0★ (3)12 mi
34Twin Town Mechanical544.7★ (12)20 mi
35PCS Refrigeration LLC545.0★ (10)21 mi
36Around The Clock Heating & Air LLC544.6★ (10)21 mi
37Habhab Mechanical544.4★ (7)19 mi
38Air Quality Heating & Air Conditioning llc533.2★ (45)22 mi
39W.J.M. Industrial Services, Inc.534.2★ (5)21 mi
40Certified Comfort Heating and Air525.0★ (5)24 mi
41R. V. Sutton Inc.495.0★ (4)14 mi
42All Aspects Heating and Cooling474.9★ (45)18 mi
43Michiana Mechanical Heating & Cooling464.9★ (300)In Michigan City
44Wayne Heating, Plumbing & A.C.444.8★ (120)In Michigan City
45Mechanical Concepts Inc444.9★ (8)19 mi
46Gann Mechanical435.0★ (43)In Michigan City
47Thorn Total Comfort424.0★ (4)18 mi
48NWI Heating and Air425.0★ (418)18 mi
49Wiesemann's Plumbing Heating & A/C424.8★ (26)In Michigan City
50Hoekstra - Paniccia Heating & Air Conditioning Inc424.9★ (49)5 mi

How we ranked emergency HVAC contractors in Michigan City

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 Michigan City: questions

Which HVAC contractors in Michigan City are open 24/7?

25 on this list post 24/7 hours, including Summers Plumbing Heating & Cooling, Home Comfort Experts, Summers Plumbing Heating & Cooling, Regional Plumbing Heating & Air - Michigan City and All Seasons Heating & Air Conditioning.

Who is ranked #1 for emergency heating and cooling in Michigan City, IN?

Summers Plumbing Heating & Cooling is #1, with a CR Score of 64 out of 100 on emergency weights.

How are emergency HVAC contractors in Michigan City 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 Michigan City

  1. October 2026: CR Scores recalculated for 97 hvac contractors serving Michigan City.
  2. October 2026: 1 duplicate listing merged.

More emergency and heating and cooling pages