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Emergency HVAC Contractors in Rochester, MN (2026)

42 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank

13 of the 42 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 Rochester: Tonna Mechanical: Heating, A/C, Water Treatment, Plumbing & Duct Cleaning, 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 Rochester at a glance

Top emergency HVAC contractors in Rochester at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Tonna Mechanical: Heating, A/C, Water Treatment, Plumbing & Duct Cleaning684.9★ (3,341)Rochester24/7
2K & S Heating, Air Conditioning, Plumbing & Electrical684.8★ (4,071)Rochester24/7
3Blue Ox Heating & Air664.9★ (690)Rochester24/7
4Hawk's Services654.8★ (427)Rochester24/7
5Hawk's Services644.9★ (205)Rochester24/7
6Unitedly Service Group aquired by Hawk's Service644.9★ (174)Rochester24/7
7Hero: Plumbing, Heating, Cooling, Drains, Ducts & Electrical634.8★ (144)Rochester24/7
8North Country Heating and Cooling625.0★ (64)Rochester24/7
9Rahman Heating, A/C & Fireplace, LLC614.8★ (47)Rochester24/7
10Superior Mechanical614.3★ (89)Rochester24/7

Call an emergency HVAC contractor in Rochester 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 42 emergency HVAC contractors in Rochester, ranked

24/7 first, then same-day service, then the rest. Each group is in CR Score order on emergency weights.

  1. Ranked #1 in Rochester

    #1 Tonna Mechanical: Heating, A/C, Water Treatment, Plumbing & Duct Cleaning

    Based in Rochester

    68/100CR Score

    Ranked #1 because of its Google rating and trade focus: 4.9★ from 3,341 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.9★ from 3,341 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1440 Industrial Dr NW, Rochester, MN 55901
    View profile for Tonna Mechanical: Heating, A/C, Water Treatment, Plumbing & Duct Cleaning(507) 264-4255

  3. #3 Blue Ox Heating & Air

    Based in Rochester

    66/100CR Score

    Ranked #3 because of its Google rating and trade focus: 4.9★ from 690 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.9★ from 690 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    4410 19th St NW, Rochester, MN 55901
    View profile for Blue Ox Heating & Air(507) 320-4650

  4. #4 Hawk's Services

    Based in Rochester

    65/100CR Score

    Ranked #4 because of its Google rating and trade focus: 4.8★ from 427 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.8★ from 427 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1912 3rd Ave SE, Rochester, MN 55904
    View profile for Hawk's Services(507) 226-9950

  5. #5 Hawk's Services

    Based in Rochester

    64/100CR Score

    Ranked #5 because of its Google rating and trade focus: 4.9★ from 205 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.9★ from 205 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    810 S Minnesota Ave, Oronoco, MN 55960
    View profile for Hawk's Services(507) 944-1070

  10. #10 Superior Mechanical

    Based in Rochester

    61/100CR Score

    Ranked #10 because of its Google rating and trade focus: 4.3★ from 89 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.3★ from 89 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1244 60th Ave NW, Rochester, MN 55901
    View profile for Superior Mechanical(507) 289-0229

  12. #12 Oronoco Heat & Air

    Based in Rochester

    58/100CR Score

    Ranked #12 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 4 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    600 Vintage Rd NW, Oronoco, MN 55960
    View profile for Oronoco Heat & Air(507) 951-5863

  13. #13 Action Plumbing & Heating

    Based in Rochester

    57/100CR Score

    Ranked #13 because of its Google rating and trade focus: 4.2★ from 45 Google reviews, listed on Google as “Plumber”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.2★ from 45 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    4006 US-14, Rochester, MN 55904
    View profile for Action Plumbing & Heating(507) 282-8333

  14. #14 Haley Comfort - Heating, Air Conditioning & Fireplaces - 24/7 Service

    Based in Rochester

    67/100CR Score

    Ranked #14 because of its Google rating and trade focus: 4.9★ from 1,245 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.9★ from 1,245 Google reviews
    • Emergency service
    Hours
    Mon–Wed 9 AM–6 PM · Thu 9 AM–8 PM · Fri 9 AM–5 PM · Sat 9 AM–4 PM · Sun closed
    Address
    3708 N Broadway Ave Suite 150, Rochester, MN 55906
    View profile for Haley Comfort - Heating, Air Conditioning & Fireplaces - 24/7 Service(507) 405-1641

  17. #17 WHV Inc

    Based in Rochester

    48/100CR Score

    Ranked #17 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “HVAC contractor”.

    Based on 7 of 10 factors; credentials, recency and availability not yet collected.

    • 5.0★ from 3 Google reviews
    Address
    1712 3rd Ave SE, Rochester, MN 55904
    View profile for WHV Inc(507) 280-4201

  18. #18 Scr Southern Division

    Based in Rochester

    48/100CR Score

    Ranked #18 because of its Google rating and trade focus: 3.7★ from 3 Google reviews, listed on Google as “Heating contractor”.

    Based on 7 of 10 factors; credentials, recency and availability not yet collected.

    • 3.7★ from 3 Google reviews
    Address
    6131 Rome Cir NW suite a, Rochester, MN 55901
    View profile for Scr Southern Division(507) 535-7954

  19. #19 Warners' Stellian Appliance

    Based in Rochester

    47/100CR Score

    Ranked #19 because of its Google rating and trade focus: 4.7★ from 942 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.7★ from 942 Google reviews
    Hours
    Mon–Fri 9 AM–8 PM · Sat 9 AM–5 PM · Sun 12 PM–5 PM
    Address
    4320 US-52 N, Rochester, MN 55901
    View profile for Warners' Stellian Appliance(507) 252-5552

  20. #20 B and C Plumbing and Heating

    Based in Rochester

    45/100CR Score

    Ranked #20 because of its Google rating and trade focus: 4.9★ from 205 Google reviews, listed on Google as “Air conditioning contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.9★ from 205 Google reviews
    Hours
    Mon–Fri 7:30 AM–4 PM · Sat–Sun closed
    Address
    661 Canyon Dr NW, Eyota, MN 55934
    View profile for B and C Plumbing and Heating(507) 545-9000

  23. #23 Southeast Mechanical

    Based in Rochester

    41/100CR Score

    Ranked #23 because of its Google rating and trade focus: 4.8★ from 18 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.8★ from 18 Google reviews
    Hours
    Mon–Fri 7:30 AM–4 PM · Sat–Sun closed
    View profile for Southeast Mechanical(507) 867-1604

  24. #24 Valor Mechanical

    Based in Stewartville, 11 mi away

    41/100CR Score

    Ranked #24 because of its Google rating and trade focus: 5.0★ from 65 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 65 Google reviews
    Hours
    Mon–Fri 7:30 AM–4 PM · Sat–Sun closed
    Address
    1001 2nd Ave NW, Stewartville, MN 55976
    View profile for Valor Mechanical(507) 218-8400

All 42 HVAC contractors by emergency score

#1 to #25 are shown in full above. Here are #26 to #42, in CR Score order; each links to its profile.

HVAC contractors in Rochester, ranks 26 to 42
RankBusinessCR ScoreGoogle ratingDistance
26Gotham Heating & Air Conditioning404.6★ (9)In Rochester
27Service Pros Plumbing and Heating404.8★ (98)In Rochester
28J. F. Ahern Co.403.7★ (9)In Rochester
29Harris395.0★ (4)In Rochester
30Metropolitan Mechanical Contractors, Inc.395.0★ (4)In Rochester
31Nagel Heating & Air Conditioning LLC395.0★ (23)11 mi
32FloCore394.0★ (4)In Rochester
33Hybrid Mechanical, LLC393.7★ (3)In Rochester
341st Class Plumbing & Heating394.7★ (46)In Rochester
35Tri-County Plumbing & Heating385.0★ (16)12 mi
36Platinum Heat and Air385.0★ (9)9 mi
37Preferred Heating, Cooling, and Plumbing LLC.374.2★ (21)14 mi
38Gander Plumbing & Heating364.2★ (10)In Rochester
39Goetzinger Plumbing and Heating LLC364.1★ (10)In Rochester
40Hamilton Plumbing and Heating344.3★ (6)7 mi
41Route 52 Plumbing & Heating Inc333.8★ (4)9 mi
42Advanced Plumbing and Heating323.0★ (10)14 mi

How we ranked emergency HVAC contractors in Rochester

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 Rochester: questions

Which HVAC contractors in Rochester are open 24/7?

13 on this list post 24/7 hours, including Tonna Mechanical: Heating, A/C, Water Treatment, Plumbing & Duct Cleaning, K & S Heating, Air Conditioning, Plumbing & Electrical, Blue Ox Heating & Air, Hawk's Services and Hawk's Services.

Who is ranked #1 for emergency heating and cooling in Rochester, MN?

Tonna Mechanical: Heating, A/C, Water Treatment, Plumbing & Duct Cleaning is #1, with a CR Score of 68 out of 100 on emergency weights.

How are emergency HVAC contractors in Rochester 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 Rochester

  1. October 2026: CR Scores recalculated for 42 hvac contractors serving Rochester.
  2. October 2026: 1 duplicate listing merged.

More emergency and heating and cooling pages