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Emergency HVAC Contractors in Johnston, IA (2026)

Top 50 of 119 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 Johnston: Schaal Plumbing, Heating and 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 Johnston at a glance

Top emergency HVAC contractors in Johnston at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Schaal Plumbing, Heating and Cooling684.9★ (8,128)Johnston24/7
2Kohles & Bach Heating & Cooling674.9★ (2,360)Johnston24/7
3Service Legends Heating & Cooling, Plumbing & Electrical664.9★ (5,373)Des Moines, 5 mi away24/7
4Greens Appliance, Heating & Cooling664.9★ (3,935)Grimes, 4 mi away24/7
5Bell Brothers Heating, Cooling & Plumbing664.9★ (3,734)Des Moines, 5 mi away24/7
6Lenz Heating & Cooling654.9★ (1,802)Urbandale, 3 mi away24/7
7Holt Plumbing & Heating, Inc.654.8★ (3,343)Des Moines, 8 mi away24/7
8True Comfort Heating, Cooling and Plumbing645.0★ (983)Des Moines, 5 mi away24/7
9Lozier Heating & Cooling644.9★ (1,545)West Des Moines, 8 mi away24/7
10Des Moines Comfort645.0★ (1,014)Des Moines, 9 mi away24/7

Call an emergency HVAC contractor in Johnston 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 Johnston, 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 119 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.

  10. #10 Des Moines Comfort

    Based in Des Moines, 9 mi away

    64/100CR Score

    Ranked #10 because of its Google rating and trade focus: 5.0★ from 1,014 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 1,014 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2703 E Grand Ave, Des Moines, IA 50317
    View profile for Des Moines Comfort(515) 266-4660

  19. #19 Indianola Mechanical

    Based in Des Moines, 6 mi away

    61/100CR Score

    Ranked #19 because of its Google rating and trade focus: 4.9★ from 145 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 145 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1955 NE 58th Ave Suite 304, Des Moines, IA 50313
    View profile for Indianola Mechanical(515) 416-6406

  21. #21 Total Comfort Group

    Based in Clive, 10 mi away

    61/100CR Score

    Ranked #21 because of its Google rating and trade focus: 4.7★ from 507 Google reviews, listed on Google as “HVAC contractor”.

    • 4.7★ from 507 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    30033 Zippy Dr, Dallas Center, IA 50063
    View profile for Total Comfort Group(515) 471-3333

  22. #22 Aspen Aire Inc.

    Based in Ankeny, 6 mi away

    61/100CR Score

    Ranked #22 because of its Google rating and trade focus: 4.6★ from 229 Google reviews, listed on Google as “HVAC contractor”.

    • 4.6★ from 229 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    807 SW Des Moines St UNIT 103, Ankeny, IA 50023
    View profile for Aspen Aire Inc.(515) 257-8370

Top 50 of 119 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 Johnston, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Lenz Heating & Cooling605.0★ (119)13 mi
27Wyckoff Heating and Cooling594.7★ (447)17 mi
28Dorrian Heating & Cooling Inc594.7★ (129)12 mi
29City Wide Heating & Air Conditioning Inc.594.1★ (103)5 mi
30Des Moines Heating & Cooling584.8★ (26)7 mi
31GEM Heating and Cooling585.0★ (51)13 mi
32Scott's Heating, Cooling, Plumbing584.5★ (23)6 mi
33American Home Services584.8★ (43)12 mi
34Excel Mechanical584.4★ (18)5 mi
35Elite Heating And Cooling Inc584.8★ (24)9 mi
36Neighbors Heating and Cooling584.9★ (394)25 mi
37Triple A Home Services584.7★ (76)15 mi
38Marick Mechanical573.7★ (24)6 mi
39Resource Services Inc574.2★ (6)5 mi
40Bob Oliver Heating & Air Conditioning574.4★ (11)9 mi
41United Heating & Air Conditioning573.5★ (81)9 mi
42Dale’s heating and cooling575.0★ (6)8 mi
43Budget Heating & Cooling565.0★ (3)7 mi
44515 Mechanical563.9★ (29)13 mi
45Sims Plumbing Co554.0★ (4)9 mi
46Whipp It Up Services LLC555.0★ (5)12 mi
4710G Heating Cooling Plumbing555.0★ (4)12 mi
48Aire Serv544.8★ (12)22 mi
49Platinum Plumbing Heating and Cooling535.0★ (24)14 mi
50Star Refrigeration Heating & Cooling525.0★ (3)24 mi

How we ranked emergency HVAC contractors in Johnston

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 Johnston: questions

Which HVAC contractors in Johnston are open 24/7?

25 on this list post 24/7 hours, including Schaal Plumbing, Heating and Cooling, Kohles & Bach Heating & Cooling, Service Legends Heating & Cooling, Plumbing & Electrical, Greens Appliance, Heating & Cooling and Bell Brothers Heating, Cooling & Plumbing.

Who is ranked #1 for emergency heating and cooling in Johnston, IA?

Schaal Plumbing, Heating and Cooling is #1, with a CR Score of 68 out of 100 on emergency weights.

How are emergency HVAC contractors in Johnston 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 Johnston

  1. October 2026: CR Scores recalculated for 119 hvac contractors serving Johnston.
  2. October 2026: 1 duplicate listing merged.

More emergency and heating and cooling pages