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Emergency HVAC Contractors in Glastonbury, CT (2026)

Top 50 of 463 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 Glastonbury: Degree Heating and Cooling, 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 Glastonbury at a glance

Top emergency HVAC contractors in Glastonbury at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Degree Heating and Cooling664.8★ (1,302)Glastonbury24/7
2SM Mechanical Services LLC654.8★ (618)Glastonbury24/7
3Call The Bee644.8★ (2,959)Farmington, 13 mi away24/7
4HARP Home Services - Air Conditioning, Heating, Plumbing, & Electrical644.5★ (4,138)Windsor, 11 mi away24/7
5Absolute Air Services, LLC644.9★ (1,027)Portland, 10 mi away24/7
6Total Mechanical Systems644.7★ (2,607)Plainville, 14 mi away24/7
7Clog Master Plumbing, HVAC and Water Damage Restoration Services634.7★ (412)West Hartford, 6 mi away24/7
8Ductworks HVAC Services624.8★ (695)Bristol, 15 mi away24/7
9M.J. Emonds Mechanical Contractors, LLC614.5★ (89)Glastonbury24/7
10Town Oil Company, Inc.614.7★ (100)Wethersfield, 3 mi away24/7

Call an emergency HVAC contractor in Glastonbury 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 Glastonbury, 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 463 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.

  3. #3 Call The Bee

    Based in Farmington, 13 mi away

    64/100CR Score

    Ranked #3 because of its Google rating and trade focus: 4.8★ from 2,959 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 2,959 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    7 Eastview Dr, Farmington, CT 06032
    View profile for Call The Bee(860) 272-6402

  20. #20 Direct Home Services

    Based in Guilford, 18 mi away

    59/100CR Score

    Ranked #20 because of its Google rating and trade focus: 4.7★ from 268 Google reviews, listed on Google as “HVAC contractor”.

    • 4.7★ from 268 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    57 Ozick Dr Suite i, Durham, CT 06422
    View profile for Direct Home Services(860) 339-6001

  22. #22 Clark's Heating

    Based in Middletown, 11 mi away

    59/100CR Score

    Ranked #22 because of its Google rating and trade focus: 4.8★ from 63 Google reviews, listed on Google as “Heating contractor”.

    • 4.8★ from 63 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    16 Alsop Ave, Middletown, CT 06457
    View profile for Clark's Heating(860) 346-1137

Top 50 of 463 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 Glastonbury, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26J.M. Curtis Energy Solutions584.9★ (68)14 mi
27Setpoint Refrigeration LLC585.0★ (55)13 mi
28Deitch Energy LLC584.0★ (70)6 mi
29SMR Heating And Cooling585.0★ (85)17 mi
30Hyper Fusion Heating & Cooling, LLC585.0★ (80)17 mi
31Hometown Heating & Cooling LLC584.9★ (90)17 mi
32Diamond Mechanical585.0★ (77)17 mi
33Becker's HVAC & Electrical Services LLC584.8★ (31)9 mi
34Future Mechanical LLC584.7★ (27)9 mi
35Alternative Mechanical Services, LLC583.9★ (18)5 mi
36Taylor Energy584.4★ (138)16 mi
37Mobilio and Son HVAC574.7★ (112)20 mi
38Saucier Mechanical Services574.7★ (70)18 mi
39Berkshire Refrigeration Service574.6★ (57)17 mi
40Elite Comfort574.9★ (114)24 mi
41Bobby's Burner Service574.9★ (13)9 mi
42AAA Plumbing, LLC573.3★ (25)6 mi
43Cool Spaces Services575.0★ (15)11 mi
44Tucker Mechanical574.4★ (7)6 mi
45Cundiff HVAC574.4★ (23)12 mi
46Spotless Chimney Sweeping & Solutions LLC564.6★ (714)8 mi
47Prime Time Heating, LLC565.0★ (15)13 mi
48Action Air Systems, Inc.563.2★ (9)6 mi
49Corbett HVAC Services LLC564.4★ (80)20 mi
50Facilities Compliance Fire Protection, LLC564.6★ (9)10 mi

How we ranked emergency HVAC contractors in Glastonbury

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 Glastonbury: questions

Which HVAC contractors in Glastonbury are open 24/7?

25 on this list post 24/7 hours, including Degree Heating and Cooling, SM Mechanical Services LLC, Call The Bee, HARP Home Services - Air Conditioning, Heating, Plumbing, & Electrical and Absolute Air Services, LLC.

Who is ranked #1 for emergency heating and cooling in Glastonbury, CT?

Degree Heating and Cooling is #1, with a CR Score of 66 out of 100 on emergency weights.

How are emergency HVAC contractors in Glastonbury 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 Glastonbury

  1. October 2026: CR Scores recalculated for 463 hvac contractors serving Glastonbury.
  2. October 2026: 5 duplicate listings merged.

More emergency and heating and cooling pages