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Emergency HVAC Contractors in South Lyon, MI (2026)

Top 50 of 471 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 South Lyon: Robin Aire Service Company, 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 South Lyon at a glance

Top emergency HVAC contractors in South Lyon at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Robin Aire Service Company644.9★ (2,591)Wixom, 7 mi away24/7
2Lakeside Service Co.644.9★ (2,337)Brighton, 8 mi away24/7
3Randazzo Heating & Cooling624.9★ (1,580)Farmington Hills, 12 mi away24/7
4Mrs. Michael Plumbers, Electricians, and HVAC Technicians624.7★ (2,618)Howell, 12 mi away24/7
5Matheson Heating Air Plumbing624.9★ (1,350)Milford, 12 mi away24/7
6Crain Heating and Cooling624.9★ (1,422)Livonia, 13 mi away24/7
7Levine & Sons Plumbing, Heating & AC624.8★ (5,322)Southfield, 19 mi away24/7
8South Lyon Heating And Cooling624.7★ (180)South Lyon24/7
9Haley Mechanical - Brighton624.9★ (374)Brighton, 7 mi away24/7
10Trusted Heating & Cooling Solutions624.9★ (138)Brighton, 3 mi away24/7

Call an emergency HVAC contractor in South Lyon 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 South Lyon, 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 471 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.

  2. #2 Lakeside Service Co.

    Based in Brighton, 8 mi away

    64/100CR Score

    Ranked #2 because of its Google rating and trade focus: 4.9★ from 2,337 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 2,337 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    4367 S Old US Hwy 23, Brighton, MI 48114
    View profile for Lakeside Service Co.(810) 227-2719

  12. #12 Osburn Services Inc

    Based in Milford, 8 mi away

    61/100CR Score

    Ranked #12 because of its Google rating and trade focus: 4.9★ from 280 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 280 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2530 E Buno Rd, Milford, MI 48381
    View profile for Osburn Services Inc(866) 381-6193

  16. #16 Hauser

    Based in South Lyon

    61/100CR Score

    Ranked #16 because of its Google rating and trade focus: 4.6★ from 69 Google reviews, listed on Google as “HVAC contractor”.

    • 4.6★ from 69 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    4609 Six Mile Rd, South Lyon, MI 48178
    View profile for Hauser(248) 437-6299

  18. #18 Hi-Tech, Inc.

    Based in Milford, 11 mi away

    60/100CR Score

    Ranked #18 because of its Google rating and trade focus: 4.9★ from 271 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 271 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    3224 S Duck Lake Rd, Highland Township, MI 48356
    View profile for Hi-Tech, Inc.(248) 842-2162

  23. #23 Technical Hot & Cold

    Based in Westland, 15 mi away

    60/100CR Score

    Ranked #23 because of its Google rating and trade focus: 4.7★ from 820 Google reviews, listed on Google as “HVAC contractor”.

    • 4.7★ from 820 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    38568 Webb Dr, Westland, MI 48185
    View profile for Technical Hot & Cold(734) 326-3900

  24. #24 Randazzo

    Based in Ypsilanti, 16 mi away

    60/100CR Score

    Ranked #24 because of its Google rating and trade focus: 5.0★ from 364 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 364 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    317 Ecorse Rd Suite #1, Ypsilanti, MI 48198
    View profile for Randazzo(734) 221-0661

Top 50 of 471 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 South Lyon, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Krane Heating and Cooling604.9★ (681)19 mi
27Precise Temperature Control,Inc.605.0★ (181)13 mi
28Cappy Heating & Air Conditioning, Inc.604.8★ (318)14 mi
29Hartford & Ratliff Co Inc604.8★ (347)14 mi
30Vredevoogd Heating & Cooling605.0★ (368)17 mi
31Absotemp Climate Control Inc.594.6★ (191)9 mi
32AFM Heating & Cooling594.8★ (474)16 mi
33Rightemp594.9★ (192)13 mi
34Mastercraft Heating, Cooling, Plumbing, & Electrical594.7★ (851)19 mi
35A-Team Heating and Cooling594.9★ (211)15 mi
36Weathervane Heating and Cooling594.8★ (512)19 mi
37Superior Comfort Heating and Cooling594.8★ (138)13 mi
38Adair Heating and Cooling595.0★ (50)10 mi
39A Power Heating & Cooling Refrigeration594.9★ (103)13 mi
40Fahrenheit Heating and Cooling594.9★ (68)11 mi
41McGraw Mechanical594.3★ (12)In South Lyon
42Affordable Comfort Heating and Cooling584.8★ (459)21 mi
43Hines Heating & Cooling LLC585.0★ (64)13 mi
44Comfort Mechanical Heating and Cooling584.9★ (112)16 mi
45Edwards Plumbing & Heating584.3★ (2,053)22 mi
46Lashbrook Mechanical584.9★ (80)14 mi
47Kotz Heating, Cooling and Plumbing584.9★ (5,035)21 mi
48Zilka Heating and Cooling584.8★ (260)19 mi
49AirPro Heating & Cooling, LLC584.9★ (40)11 mi
50Haley Mechanical - Ann Arbor584.8★ (119)16 mi

How we ranked emergency HVAC contractors in South Lyon

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 South Lyon: questions

Which HVAC contractors in South Lyon are open 24/7?

25 on this list post 24/7 hours, including Robin Aire Service Company, Lakeside Service Co., Randazzo Heating & Cooling, Mrs. Michael Plumbers, Electricians, and HVAC Technicians and Matheson Heating Air Plumbing.

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

Robin Aire Service Company is #1, with a CR Score of 64 out of 100 on emergency weights.

How are emergency HVAC contractors in South Lyon 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 South Lyon

  1. October 2026: CR Scores recalculated for 471 hvac contractors serving South Lyon.
  2. October 2026: 2 duplicate listings merged.

More emergency and heating and cooling pages