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Emergency HVAC Contractors in Granville, OH (2026)

Top 50 of 218 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 Granville: Dor Mar Heating & Air Conditioning, 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 Granville at a glance

Top emergency HVAC contractors in Granville at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Dor Mar Heating & Air Conditioning644.6★ (1,591)Newark, 7 mi away24/7
2Apex Pros Plumbing, Electrical, Heating and Air644.8★ (549)Newark, 5 mi away24/7
3Pickerington Heating & Cooling644.9★ (3,492)Pickerington, 17 mi away24/7
4CARE Heating and Cooling, Inc.634.9★ (3,995)Westerville, 22 mi away24/7
5Newark-Heath Heating & Cooling634.8★ (349)Newark, 6 mi away24/7
6Moore's Heating and Air Conditioning635.0★ (162)Newark, 5 mi away24/7
7Roy Mechanical LLC634.8★ (163)Newark, 3 mi away24/7
8Dor-Mar Pataskala Heating Cooling Plumbing Electrical Appliances Radon624.9★ (384)Pataskala, 10 mi away24/7
9Five Star Home Services Columbus624.8★ (2,234)Canal Winchester, 20 mi away24/7
10Right Way Heating & Cooling624.9★ (581)Reynoldsburg, 14 mi away24/7

Call an emergency HVAC contractor in Granville 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 Granville, 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 218 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.

  7. #7 Roy Mechanical LLC

    Based in Newark, 3 mi away

    63/100CR Score

    Ranked #7 because of its Google rating and trade focus: 4.8★ from 163 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 163 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2112 Cherry Valley Rd suite E2, Newark, OH 43055
    View profile for Roy Mechanical LLC(740) 762-4871

  22. #22 Classic Air

    Based in Columbus, 22 mi away

    60/100CR Score

    Ranked #22 because of its Google rating and trade focus: 4.9★ from 579 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 579 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    5180 Westerville Rd, Columbus, OH 43231
    View profile for Classic Air(614) 476-1732

Top 50 of 218 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 Granville, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Dor-Mar Westerville Heating Cooling Plumbing Electric Appliances Radon594.9★ (348)21 mi
27Westin Air Heating and Cooling - Sunbury Ohio595.0★ (355)23 mi
28Bryant Heating, Cooling, & Refrigeration594.4★ (62)7 mi
29Cosby Heating and Cooling594.9★ (500)24 mi
30Hubbs Heating & Air594.8★ (728)25 mi
31Dor-Mar Reynoldsburg Heating and Air Conditioning Service594.8★ (183)17 mi
32Westerville Air Conditioning & Heating594.9★ (277)22 mi
33Apex Pros Plumbing, Electrical, Heating and Air594.8★ (501)25 mi
34Thermo Pros595.0★ (294)24 mi
35Uptown Heating and Cooling594.9★ (231)22 mi
36Climate Heating & Cooling594.8★ (120)17 mi
37Peterman Brothers594.8★ (439)25 mi
38Best Service Heating & Cooling584.6★ (80)14 mi
39Set Point Heating and Cooling584.7★ (15)6 mi
40LRF Maintenance LLC584.9★ (93)18 mi
41Westin Air Heating and Cooling - Westerville Ohio584.8★ (251)23 mi
42Whole Home Comfort584.5★ (39)11 mi
43Eagle Heating & Cooling Inc584.1★ (66)10 mi
44Foster's Heating & Air584.9★ (139)22 mi
45Lancaster Furnace & Air Conditioning584.8★ (269)25 mi
46The Heating and Cooling Pro585.0★ (167)25 mi
47Arctic Air Service Now Heating & Air Conditioning585.0★ (33)15 mi
48Eco Plumbers, Electricians, and HVAC Technicians584.9★ (750)18 mi
49Polar Bear Conditioned Air585.0★ (68)19 mi
50Upper Arlington Heating & Air584.9★ (176)25 mi

How we ranked emergency HVAC contractors in Granville

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 Granville: questions

Which HVAC contractors in Granville are open 24/7?

25 on this list post 24/7 hours, including Dor Mar Heating & Air Conditioning, Apex Pros Plumbing, Electrical, Heating and Air, Pickerington Heating & Cooling, CARE Heating and Cooling, Inc. and Newark-Heath Heating & Cooling.

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

Dor Mar Heating & Air Conditioning is #1, with a CR Score of 64 out of 100 on emergency weights.

How are emergency HVAC contractors in Granville 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 Granville

  1. October 2026: CR Scores recalculated for 218 hvac contractors serving Granville.
  2. October 2026: 1 duplicate listing merged.

More emergency and heating and cooling pages