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Emergency HVAC Contractors in Lowell, IN (2026)

Top 50 of 188 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 Lowell: 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 Lowell at a glance

Top emergency HVAC contractors in Lowell at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Summers Plumbing Heating & Cooling664.9★ (4,666)Crown Point, 10 mi away24/7
2True Quality HVAC635.0★ (368)Gary, 7 mi away24/7
3Home Comfort Experts624.9★ (4,299)Valparaiso, 24 mi away24/7
4Merts Heating & Air Conditioning624.8★ (1,449)Steger, 17 mi away24/7
5Summers Plumbing Heating & Cooling624.9★ (3,188)Valparaiso, 24 mi away24/7
6AAA Services, Inc. - Heating, Air Conditioning & Plumbing624.9★ (486)Merrillville, 13 mi away24/7
7All American AC & Heating Repair624.9★ (275)Crown Point, 10 mi away24/7
8Comfort Aire Inc624.8★ (508)Merrillville, 13 mi away24/7
9EcoEdge Systems Heating & Cooling624.9★ (486)Merrillville, 14 mi away24/7
10Gray's Total Green Energy Solutions LLC624.4★ (127)Lowell24/7

Call an emergency HVAC contractor in Lowell 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 Lowell, 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 188 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 Home Comfort Experts

    Based in Valparaiso, 24 mi away

    62/100CR Score

    Ranked #3 because of its Google rating and trade focus: 4.9★ from 4,299 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 4,299 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    3505 Redbow Dr, Valparaiso, IN 46383
    View profile for Home Comfort Experts(219) 224-6602

  8. #8 Comfort Aire Inc

    Based in Merrillville, 13 mi away

    62/100CR Score

    Ranked #8 because of its Google rating and trade focus: 4.8★ from 508 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 508 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    8269 Buchanan St, Merrillville, IN 46410
    View profile for Comfort Aire Inc(219) 306-2348

  13. #13 All-Star Service

    Based in Valparaiso, 18 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

  23. #23 Crown Wheele HVAC

    Based in Valparaiso, 22 mi away

    58/100CR Score

    Ranked #23 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

Top 50 of 188 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 Lowell, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Aire Serv of Valparaiso584.7★ (282)22 mi
27Madden Heating & Air Conditioning585.0★ (220)25 mi
28Ryan Patrick Heating & AC Services, LLC585.0★ (17)9 mi
29M & M Mechanical575.0★ (12)9 mi
30JL Mechanical Heating and Air574.7★ (264)25 mi
31EDCO Environmental Services575.0★ (13)10 mi
32Rich's Heating and Air LLC575.0★ (73)21 mi
334 Brothers Sewer and Plumbing Service574.6★ (166)22 mi
34J&J Heating Inc.575.0★ (52)19 mi
35Mountain Top Heating Air & Appliance Repair Inc.repair574.6★ (117)20 mi
36Cold Air HVAC LLC574.4★ (35)13 mi
37Kulacz & Sons Heating & Cooling, Inc.574.9★ (77)21 mi
38All-Star Service574.6★ (51)17 mi
39Apex Heating and Cooling575.0★ (81)24 mi
40Brandon Casey’s Comfort Crew574.8★ (81)23 mi
41Division HVAC Specialists575.0★ (79)24 mi
42Kent Heating and Air Conditioning564.7★ (108)23 mi
43One Hour Heating & Air Conditioning of Hazel Crest564.8★ (100)24 mi
44Tri-Quality Service Inc564.0★ (8)9 mi
45Bennett Heating & Air Conditioning564.5★ (67)20 mi
46Sun Ray Heating LLC564.5★ (67)20 mi
47JTR Heating & Air Conditioning564.2★ (68)19 mi
48Able Heating & Cooling564.9★ (37)22 mi
49Lakefront Heating and Cooling554.9★ (30)22 mi
50After Hours Heating & Cooling Corp555.0★ (9)16 mi

How we ranked emergency HVAC contractors in Lowell

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 Lowell: questions

Which HVAC contractors in Lowell are open 24/7?

25 on this list post 24/7 hours, including Summers Plumbing Heating & Cooling, True Quality HVAC, Home Comfort Experts, Merts Heating & Air Conditioning and Summers Plumbing Heating & Cooling.

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

Summers Plumbing Heating & Cooling is #1, with a CR Score of 66 out of 100 on emergency weights.

How are emergency HVAC contractors in Lowell 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 Lowell

  1. October 2026: CR Scores recalculated for 188 hvac contractors serving Lowell.
  2. October 2026: 2 duplicate listings merged.

More emergency and heating and cooling pages