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Emergency HVAC Contractors in Saint Marys, OH (2026)

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

8 of the 48 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 Saint Marys: Lochard HVAC, Plumbing and Service, 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 Saint Marys at a glance

Top emergency HVAC contractors in Saint Marys at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Lochard HVAC, Plumbing and Service634.9★ (357)Sidney, 21 mi away24/7
2Quality Mechanical Services594.1★ (168)Lima, 21 mi away24/7
3American Heating & Air Conditioning584.4★ (73)Lima, 21 mi away24/7
4Teamwork Heating & Cooling584.8★ (44)Sidney, 20 mi away24/7
5Spartan Mechanical Services LLC565.0★ (26)Sidney, 21 mi away24/7
6Midwest Services565.0★ (3)Celina, 5 mi away24/7
7Premier Mechanical Services Inc533.0★ (10)Lima, 19 mi away24/7
8CREPS Plumbing Heating & Air Conditioning LLC523.2★ (6)Lima, 20 mi away24/7
9Reliable Plumbing & Heating443.4★ (32)Delphos, 21 mi away—
10Kogge Inc Plumbing Heating444.1★ (74)Saint Marys—

Call an emergency HVAC contractor in Saint Marys 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 48 emergency HVAC contractors in Saint Marys, ranked

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

  2. #2 Quality Mechanical Services

    Based in Lima, 21 mi away

    59/100CR Score

    Ranked #2 because of its Google rating and trade focus: 4.1★ from 168 Google reviews, listed on Google as “HVAC contractor”.

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

    • 4.1★ from 168 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1190 E Kibby St, Lima, OH 45804
    View profile for Quality Mechanical Services(419) 229-9781

  4. #4 Teamwork Heating & Cooling

    Based in Sidney, 20 mi away

    58/100CR Score

    Ranked #4 because of its Google rating and trade focus: 4.8★ from 44 Google reviews, listed on Google as “HVAC contractor”.

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

    • 4.8★ from 44 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1353 Tully Dr, Sidney, OH 45365
    View profile for Teamwork Heating & Cooling(937) 948-8248

  6. #6 Midwest Services

    Based in Celina, 5 mi away

    56/100CR Score

    Ranked #6 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “HVAC contractor”.

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

    • 5.0★ from 3 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    17125 Maier Barber Rd, St Marys, OH 45885
    View profile for Midwest Services(419) 953-5414

  10. #10 Kogge Inc Plumbing Heating

    Based in Saint Marys

    44/100CR Score

    Ranked #10 because of its Google rating and trade focus: 4.1★ from 74 Google reviews, listed on Google as “Heating contractor”.

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

    • 4.1★ from 74 Google reviews
    Hours
    Mon–Fri 8 AM–4:30 PM · Sat–Sun closed
    Address
    811 Indiana Ave, St Marys, OH 45885
    View profile for Kogge Inc Plumbing Heating(419) 394-4694

  11. #11 Copeland Corporation

    Based in Sidney, 22 mi away

    44/100CR Score

    Ranked #11 because of its Google rating and trade focus: 4.3★ from 15 Google reviews, listed on Google as “Air conditioning contractor”.

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

    • 4.3★ from 15 Google reviews
    Address
    756 Brooklyn Ave, Sidney, OH 45365
    View profile for Copeland Corporation(937) 498-3011

  12. #12 Burns Heating And Cooling Llc

    Based in Sidney, 21 mi away

    42/100CR Score

    Ranked #12 because of its Google rating and trade focus: 4.3★ from 6 Google reviews, listed on Google as “Air conditioning contractor”.

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

    • 4.3★ from 6 Google reviews
    Address
    899 Johnston Dr, Sidney, OH 45365
    View profile for Burns Heating And Cooling Llc

  13. #13 Consolidated-Hunter Heating

    Based in Celina, 10 mi away

    42/100CR Score

    Ranked #13 because of its Google rating and trade focus: 4.7★ from 47 Google reviews, listed on Google as “Heating contractor”.

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

    • 4.7★ from 47 Google reviews
    Hours
    Mon–Thu 7 AM–5 PM · Fri 7 AM–4:30 PM · Sat–Sun closed
    Address
    334 Godfrey Ave, Celina, OH 45822
    View profile for Consolidated-Hunter Heating(419) 586-3273

  14. #14 Riesen Plumbing & Heating Inc

    Based in Celina, 8 mi away

    41/100CR Score

    Ranked #14 because of its Google rating and trade focus: 4.7★ from 37 Google reviews, listed on Google as “Air conditioning contractor”.

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

    • 4.7★ from 37 Google reviews
    Hours
    Mon–Fri 7:30 AM–4 PM · Sat–Sun closed
    Address
    2015 State Rte 703, Celina, OH 45822
    View profile for Riesen Plumbing & Heating Inc(419) 586-2639

  15. #15 Quality Plumbing & Heating

    Based in Saint Marys

    41/100CR Score

    Ranked #15 because of its Google rating and trade focus: 4.2★ from 16 Google reviews, listed on Google as “Air conditioning contractor”.

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

    • 4.2★ from 16 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    225 Greenville Rd, St Marys, OH 45885
    View profile for Quality Plumbing & Heating(419) 394-8121

  16. #16 Mr Comfort Water Heat Inc

    Based in Lima, 19 mi away

    41/100CR Score

    Ranked #16 because of its Google rating and trade focus: 4.7★ from 3 Google reviews, listed on Google as “Heating contractor”.

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

    • 4.7★ from 3 Google reviews
    Address
    1634 W High St, Lima, OH 45805
    View profile for Mr Comfort Water Heat Inc(419) 224-8686

  19. #19 Thermo King Midwest

    Based in Delphos, 21 mi away

    40/100CR Score

    Ranked #19 because of its Google rating and trade focus: 4.9★ from 68 Google reviews, listed on Google as “HVAC contractor”.

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

    • 4.9★ from 68 Google reviews
    Hours
    Mon–Fri 7 AM–5 PM · Sat–Sun closed
    Address
    801 W 5th St, Delphos, OH 45833
    View profile for Thermo King Midwest(419) 695-6060

  21. #21 Doug's Plumbing & Heating

    Based in Lima, 18 mi away

    40/100CR Score

    Ranked #21 because of its Google rating and trade focus: 4.5★ from 66 Google reviews, listed on Google as “Air conditioning contractor”.

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

    • 4.5★ from 66 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    2585 N Wapakoneta Rd, Elida, OH 45807
    View profile for Doug's Plumbing & Heating(419) 339-2880

  22. #22 R. A. Flynn & Son

    Based in Lima, 20 mi away

    39/100CR Score

    Ranked #22 because of its Google rating and trade focus: 4.5★ from 50 Google reviews, listed on Google as “HVAC contractor”.

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

    • 4.5★ from 50 Google reviews
    Hours
    Mon–Fri 7 AM–4 PM · Sat–Sun closed
    Address
    2300 Central Parkway, Lima, OH 45801
    View profile for R. A. Flynn & Son(419) 225-4166

  23. #23 Houston Electric Plumbing Heating & Air Conditioning

    Based in Wapakoneta, 11 mi away

    39/100CR Score

    Ranked #23 because of its Google rating and trade focus: 4.5★ from 16 Google reviews, listed on Google as “HVAC contractor”.

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

    • 4.5★ from 16 Google reviews
    Hours
    Mon–Fri 7 AM–5 PM · Sat–Sun closed
    Address
    603 Dixie Hwy, Wapakoneta, OH 45895
    View profile for Houston Electric Plumbing Heating & Air Conditioning(419) 738-9800

  25. #25 Ayers Mechanical Group

    Based in Van Wert, 25 mi away

    38/100CR Score

    Ranked #25 because of its Google rating and trade focus: 4.5★ from 70 Google reviews, listed on Google as “Air conditioning contractor”.

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

    • 4.5★ from 70 Google reviews
    Hours
    Mon–Thu 8 AM–5 PM · Fri 8 AM–4 PM · Sat–Sun closed
    Address
    222 N Market St, Van Wert, OH 45891
    View profile for Ayers Mechanical Group(419) 238-5480

All 48 HVAC contractors by emergency score

#1 to #25 are shown in full above. Here are #26 to #48, in CR Score order; each links to its profile.

HVAC contractors in Saint Marys, ranks 26 to 48
RankBusinessCR ScoreGoogle ratingDistance
26Area Energy & Electric, Inc.384.4★ (34)20 mi
27Alltek Plumbing Heating and Air Conditioning384.5★ (27)19 mi
28Dotson Plumbing, Heating & A/C373.9★ (21)15 mi
29DP & L373.4★ (59)21 mi
30Burns Heating and Cooling, LLC374.8★ (23)21 mi
31Quality Plumbing Heating & AC374.0★ (8)11 mi
32CW Service364.0★ (5)10 mi
33Schnippel Electric Plumbing & Heating364.9★ (7)15 mi
34Lippincott Plumbing, Heating & Electrical, Inc.363.3★ (34)20 mi
35Smith Boughan Inc364.4★ (8)17 mi
36ATR Contractors / All Temp Refrigeration354.4★ (9)20 mi
37ChillTex / Eck Refrigeration Inc354.4★ (8)20 mi
38Perry's Heating and Air Conditioning354.7★ (6)20 mi
39Grothouse Plumbing and Heating344.0★ (43)20 mi
40Advanced Mechanical Plus Inc342.5★ (8)20 mi
41Washam Plumbing Heating & Air Conditioning, INC.333.7★ (30)18 mi
42Sidney Electric334.0★ (4)21 mi
43Wollenhaupt335.0★ (4)23 mi
44Home Power Systems, LLC335.0★ (3)22 mi
45Regal Plumbing & Heating Co.334.4★ (14)18 mi
46A & A Mechanical324.0★ (4)25 mi
47Trents General Contracting and Hvac Services324.9★ (7)16 mi
48Fischer Plumbing & Heating302.5★ (12)21 mi

How we ranked emergency HVAC contractors in Saint Marys

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 Saint Marys: questions

Which HVAC contractors in Saint Marys are open 24/7?

8 on this list post 24/7 hours, including Lochard HVAC, Plumbing and Service, Quality Mechanical Services, American Heating & Air Conditioning, Teamwork Heating & Cooling and Spartan Mechanical Services LLC.

Who is ranked #1 for emergency heating and cooling in Saint Marys, OH?

Lochard HVAC, Plumbing and Service is #1, with a CR Score of 63 out of 100 on emergency weights.

How are emergency HVAC contractors in Saint Marys 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?

24 of the 25 businesses ranked in full list a phone number. Tap Call to dial it.

Update log for Saint Marys

  1. October 2026: CR Scores recalculated for 48 hvac contractors serving Saint Marys.

More emergency and heating and cooling pages