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Emergency HVAC Contractors in Montville Center, CT (2026)

Top 50 of 162 HVAC contractors, in emergency orderUpdated 0 paid placements in this rankingHow we rank

24 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 Montville Center: Kneeland heating & Cooling LLC, 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 Montville Center at a glance

Top emergency HVAC contractors in Montville Center at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Kneeland heating & Cooling LLC624.6★ (169)Groton, 6 mi away24/7
2Absolute Air Services, LLC614.9★ (1,027)Portland, 24 mi away24/7
3DTS Oil & Gas Service & Solutions LLC615.0★ (150)Hebron, 12 mi away24/7
4Connecticut HVAC Services llc604.6★ (107)Guilford, 8 mi away24/7
5HVAC Restorations LLC.605.0★ (33)Norwich, 5 mi away24/7
6C&M Heating and Cooling, LLC604.6★ (28)Ledyard, 2 mi away24/7
7CNM Heating Cooling Piping LLC595.0★ (186)Storrs, 21 mi away24/7
8Carnot Heating584.6★ (9)Groton, 1 mi away24/7
9Russ Energy585.0★ (8)East Haddam, 3 mi away24/7
10Sprague Heating & Cooling LLC585.0★ (8)Windham, 5 mi away24/7

Call an emergency HVAC contractor in Montville Center 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 Montville Center, 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 162 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.

  8. #8 Carnot Heating

    Based in Groton, 1 mi away

    58/100CR Score

    Ranked #8 because of its Google rating and trade focus: 4.6★ from 9 Google reviews, listed on Google as “HVAC contractor”.

    • 4.6★ from 9 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for Carnot Heating(860) 917-5879

  9. #9 Russ Energy

    Based in East Haddam, 3 mi away

    58/100CR Score

    Ranked #9 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 8 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for Russ Energy(860) 800-4737

  16. #16 Air Pro Services LLC

    Based in Plainfield, 14 mi away

    55/100CR Score

    Ranked #16 because of its Google rating and trade focus: 4.6★ from 9 Google reviews, listed on Google as “HVAC contractor”.

    • 4.6★ from 9 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    54 Woodchuck Hill Rd, Canterbury, CT 06331
    View profile for Air Pro Services LLC(860) 334-3031

  18. #18 Best Energy

    Based in Pawcatuck, 18 mi away

    55/100CR Score

    Ranked #18 because of its Google rating and trade focus: 3.8★ from 32 Google reviews, listed on Google as “HVAC contractor”.

    • 3.8★ from 32 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    4 Mechanic St, Pawcatuck, CT 06379
    View profile for Best Energy(860) 599-1920

  19. #19 Air Guarden

    Based in Norwich, 7 mi away

    54/100CR Score

    Ranked #19 because of its Google rating and review volume: 5.0★ from 59 Google reviews.

    • 5.0★ from 59 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1 Hilltop Rd, Norwich, CT 06360
    View profile for Air Guarden(860) 222-1605

Top 50 of 162 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 Montville Center, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26STAK'D Mechanical534.6★ (9)23 mi
27KSB Electric535.0★ (245)24 mi
28Rainville Plumbing & Heating525.0★ (4)9 mi
29Rapid Service LLC504.4★ (74)19 mi
30TNT Heating & Cooling LLC475.0★ (9)9 mi
3172 Degrees Air Conditioning & Heating474.2★ (16)10 mi
32Bamaca's Roofing LLC464.3★ (6)22 mi
33MIDKNIGHT OIL COMPANY464.6★ (9)10 mi
34BTW Plumbing, Heating, and Cooling LLC465.0★ (8)10 mi
35Muscarella Plumbing & Heating Inc464.0★ (4)6 mi
36Rich's Heating464.2★ (5)8 mi
37Broad Brook Heating & Cooling Inc454.9★ (175)3 mi
38MDK Mechancial LLC445.0★ (3)11 mi
39DDLC Energy444.7★ (422)9 mi
40E W Leonard Inc444.7★ (6)16 mi
41W F Lebeau Plumbing & Heating444.6★ (7)17 mi
42South Shore Heating & Cooling Inc434.9★ (564)17 mi
43Villa & Sons434.0★ (4)16 mi
44Densmore Oil Company434.9★ (283)14 mi
45Eric Sabo Plumbing Heating & Cooling, LLC.434.9★ (264)14 mi
46Control/Temp423.3★ (4)17 mi
47Wilcox Energy425.0★ (467)20 mi
48Foley Furnace Inc424.5★ (4)19 mi
49Northeast Temperature Control425.0★ (3)19 mi
50Duncklee Cooling & Heating Inc424.7★ (256)14 mi

How we ranked emergency HVAC contractors in Montville Center

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 Montville Center: questions

Which HVAC contractors in Montville Center are open 24/7?

24 on this list post 24/7 hours, including Kneeland heating & Cooling LLC, Absolute Air Services, LLC, DTS Oil & Gas Service & Solutions LLC, Connecticut HVAC Services llc and HVAC Restorations LLC..

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

Kneeland heating & Cooling LLC is #1, with a CR Score of 62 out of 100 on emergency weights.

How are emergency HVAC contractors in Montville Center 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 Montville Center

  1. October 2026: CR Scores recalculated for 162 hvac contractors serving Montville Center.
  2. October 2026: 3 duplicate listings merged.

More emergency and heating and cooling pages