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Emergency HVAC Contractors in Marysville, MI (2026)

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

17 of the 47 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 Marysville: Reliance Home Comfort, 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 Marysville at a glance

Top emergency HVAC contractors in Marysville at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Reliance Home Comfort664.8★ (3,256)Sarnia, 7 mi away24/7
2Vincent's Heating & Plumbing Inc654.8★ (997)Port Huron, 4 mi away24/7
3It's Your Heating And Cooling Guy654.9★ (739)Port Huron, 4 mi away24/7
4Dependable Heating Cooling & Refrigeration654.9★ (707)Sarnia, 5 mi away24/7
5Handy Bros. HVAC Sarnia (AC and Furnace Repair)634.9★ (312)Sarnia, 7 mi away24/7
6Stewart Adams & Son Heating & Air Conditioning LLC635.0★ (200)Port Huron, 6 mi away24/7
7Superior Heating & Cooling Inc.634.9★ (191)Port Huron, 6 mi away24/7
8Bright's Grove Heating & Cooling (AC and Furnace Repair)605.0★ (166)Sarnia, 14 mi away24/7
9Superior Plumbing & Heating of Sarnia595.0★ (20)Sarnia, 6 mi away24/7
10Tri-Masters Heating & Cooling575.0★ (29)Richmond, 15 mi away24/7

Call an emergency HVAC contractor in Marysville 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 47 emergency HVAC contractors in Marysville, 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 Marysville

    #1 Reliance Home Comfort

    Based in Sarnia, 7 mi away

    66/100CR Score

    Ranked #1 because of its Google rating and review volume: 4.8★ from 3,256 Google reviews.

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

    • 4.8★ from 3,256 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1355 Confederation St Unit 15, Sarnia, ON N7S 4T2
    View profile for Reliance Home Comfort(866) 780-3710

  7. #7 Superior Heating & Cooling Inc.

    Based in Port Huron, 6 mi away

    63/100CR Score

    Ranked #7 because of its Google rating and trade focus: 4.9★ from 191 Google reviews, listed on Google as “HVAC contractor”.

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

    • 4.9★ from 191 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    920 Pine Grove Ave, Port Huron, MI 48060, United States
    View profile for Superior Heating & Cooling Inc.(586) 727-7753

  11. #11 ASM - All Systems Mechanical

    Based in Petrolia, 17 mi away

    57/100CR Score

    Ranked #11 because of its Google rating and trade focus: 4.8★ from 37 Google reviews, listed on Google as “HVAC contractor”.

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

    • 4.8★ from 37 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    414 Albany St, Petrolia, ON N0N 1R0
    View profile for ASM - All Systems Mechanical(519) 381-4328

  15. #15 Heatmasters

    Based in New Baltimore, 22 mi away

    54/100CR Score

    Ranked #15 because of its Google rating and trade focus: 4.6★ from 10 Google reviews, listed on Google as “Heating contractor”.

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

    • 4.6★ from 10 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    30960 Hickey Rd, New Baltimore, MI 48051
    View profile for Heatmasters(586) 770-3233

  16. #16 Richmond Heating and Cooling

    Based in Richmond, 16 mi away

    54/100CR Score

    Ranked #16 because of its Google rating and trade focus: 3.5★ from 4 Google reviews, listed on Google as “Heating contractor”.

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

    • 3.5★ from 4 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    67731 Joe Wood Dr, Richmond, MI 48062
    View profile for Richmond Heating and Cooling(586) 623-7638

  18. #18 Dale’s Mechanical

    Based in Marysville

    51/100CR Score

    Ranked #18 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Heating contractor”.

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

    • 5.0★ from 20 Google reviews
    Address
    1441 S Range Rd, St Clair, MI 48079
    View profile for Dale’s Mechanical(810) 326-4328

  19. #19 Jet Heating & Air

    Based in Port Huron, 11 mi away

    50/100CR Score

    Ranked #19 because of its Google rating and trade focus: 4.8★ from 71 Google reviews, listed on Google as “Air conditioning contractor”.

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

    • 4.8★ from 71 Google reviews
    Address
    5649 State Rd, Fort Gratiot Township, MI 48059
    View profile for Jet Heating & Air(810) 385-4700

  20. #20 Mc Cormick Heating

    Based in Port Huron, 12 mi away

    45/100CR Score

    Ranked #20 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “HVAC contractor”.

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

    • 5.0★ from 4 Google reviews
    Address
    3120 Maplewood Dr, Fort Gratiot Township, MI 48059
    View profile for Mc Cormick Heating(810) 385-3997

  21. #21 Royal heating and cooling

    Based in Richmond, 15 mi away

    44/100CR Score

    Ranked #21 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “HVAC contractor”.

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

    • 5.0★ from 4 Google reviews
    Address
    68834 Main St STE 2, Richmond, MI 48062
    View profile for Royal heating and cooling(586) 489-5438

  22. #22 Bear Metal

    Based in Camlachie, 18 mi away

    44/100CR Score

    Ranked #22 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “HVAC contractor”.

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

    • 5.0★ from 6 Google reviews
    Address
    6729 O'Banwell St, Camlachie, ON N0N 1E0
    View profile for Bear Metal(519) 899-2651

  24. #24 MN Mechanical

    Based in Sarnia, 7 mi away

    42/100CR Score

    Ranked #24 because of its Google rating and trade focus: 5.0★ from 76 Google reviews, listed on Google as “HVAC contractor”.

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

    • 5.0★ from 76 Google reviews
    Hours
    Mon–Fri 8 AM–4 PM · Sat–Sun closed
    Address
    1323 Lougar Ave, Sarnia, ON N7S 5N7
    View profile for MN Mechanical(519) 383-9922

  25. #25 A & C Heating & Cooling

    Based in New Baltimore, 20 mi away

    42/100CR Score

    Ranked #25 because of its Google rating and trade focus: 4.9★ from 491 Google reviews, listed on Google as “HVAC contractor”.

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

    • 4.9★ from 491 Google reviews
    Hours
    Mon–Fri 8 AM–7 PM · Sat 9 AM–3 PM · Sun closed
    Address
    36649 Green St, New Baltimore, MI 48047
    View profile for A & C Heating & Cooling(586) 210-6660

All 47 HVAC contractors by emergency score

#1 to #25 are shown in full above. Here are #26 to #47, in CR Score order; each links to its profile.

HVAC contractors in Marysville, ranks 26 to 47
RankBusinessCR ScoreGoogle ratingDistance
26Superior HVAC Service, Heating & Air Conditioning424.9★ (62)8 mi
27Yale Heating & Air Inc414.8★ (21)3 mi
28Saucier Plumbing and Heating414.5★ (48)6 mi
29W J Barnes414.3★ (55)6 mi
30Tony's Heating and Cooling404.8★ (188)18 mi
31Sarnia Heating404.4★ (28)6 mi
32Abram394.2★ (47)9 mi
33Tocco Heating and Cooling395.0★ (111)21 mi
34Mark's Plumbing & Heating395.0★ (3)14 mi
35Marks Comfort Tech394.6★ (20)9 mi
36A Village Fireplace Shop394.4★ (160)19 mi
37ClintonAire Heating and Cooling394.9★ (135)25 mi
38S B Heating & Air Conditioning Inc393.3★ (33)6 mi
39Northern Air Heating & Cooling384.6★ (37)16 mi
40Kelley & Sons Heating & Cooling384.9★ (34)19 mi
41St. Clair Plumbing & Heating373.5★ (4)7 mi
42Ace Appliance Heating & Cooling Inc374.2★ (5)10 mi
43MHT Air Conditioning & Heating, LLC374.3★ (3)8 mi
44Chris' Heating & Cooling, LLC354.5★ (11)20 mi
45Watson Bros. Company334.4★ (7)3 mi
46Blue Water Plumbing & Heating325.0★ (3)13 mi
47Therma Construction - Heating & Cooling - HVAC Services in Arkona305.0★ (6)24 mi

How we ranked emergency HVAC contractors in Marysville

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 Marysville: questions

Which HVAC contractors in Marysville are open 24/7?

17 on this list post 24/7 hours, including Reliance Home Comfort, Vincent's Heating & Plumbing Inc, It's Your Heating And Cooling Guy, Dependable Heating Cooling & Refrigeration and Handy Bros. HVAC Sarnia (AC and Furnace Repair).

Who is ranked #1 for emergency heating and cooling in Marysville, MI?

Reliance Home Comfort is #1, with a CR Score of 66 out of 100 on emergency weights.

How are emergency HVAC contractors in Marysville 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 Marysville

  1. October 2026: CR Scores recalculated for 47 hvac contractors serving Marysville.

More emergency and heating and cooling pages