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Emergency HVAC Contractors in Dedham, MA (2026)

Top 50 of 1,252 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 Dedham: Winters Home Services, 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 Dedham at a glance

Top emergency HVAC contractors in Dedham at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Winters Home Services654.8★ (2,862)Watertown, 9 mi away24/7
2Trust 1 Services Plumbing, Heating, and Air Conditioning654.8★ (1,567)Quincy, 7 mi away24/7
3ARS / Rescue Rooter644.6★ (2,547)Stoughton, 8 mi away24/7
4Akian Plumbing, Heating, Cooling & Electric644.8★ (1,625)Watertown, 9 mi away24/7
5Nicholson Plumbing, Electrical, Heating, and Air Conditioning644.8★ (2,950)Holliston, 13 mi away24/7
6Boston Standard Company644.7★ (2,808)Weymouth, 12 mi away24/7
7HL Bowman Inc Plumbing Heating & AC644.8★ (1,026)Braintree, 8 mi away24/7
8128 Plumbing, Heating, Cooling & Electric644.9★ (3,912)Wakefield, 18 mi away24/7
9Central Cooling & Heating634.9★ (3,169)Woburn, 19 mi away24/7
10Yellow Dog Plumbing, Heating & Cooling635.0★ (259)Needham, 6 mi away24/7

Call an emergency HVAC contractor in Dedham 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 Dedham, 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 1,252 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.

  1. Ranked #1 in Dedham

    #1 Winters Home Services

    Based in Watertown, 9 mi away

    65/100CR Score

    Ranked #1 because of its Google rating and trade focus: 4.8★ from 2,862 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 2,862 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    108 School St, Watertown, MA 02472
    View profile for Winters Home Services(617) 221-4247

  3. #3 ARS / Rescue Rooter

    Based in Stoughton, 8 mi away

    64/100CR Score

    Ranked #3 because of its Google rating and trade focus: 4.6★ from 2,547 Google reviews, listed on Google as “HVAC contractor”.

    • 4.6★ from 2,547 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    800 Technology Center Dr, Stoughton, MA 02072
    View profile for ARS / Rescue Rooter(508) 876-7327

  19. #19 New England Ductless

    Based in Weymouth, 12 mi away

    62/100CR Score

    Ranked #19 because of its Google rating and trade focus: 4.8★ from 780 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 780 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    267 Libbey Pkwy Suite B, Weymouth, MA 02189
    View profile for New England Ductless(617) 644-4692

  20. #20 ABV Appliance

    Based in Brookline, 7 mi away

    62/100CR Score

    Ranked #20 because of its Google rating and trade focus: 4.8★ from 300 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 300 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for ABV Appliance(617) 404-9944

Top 50 of 1,252 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 Dedham, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Notturno Home Services624.9★ (1,586)21 mi
27Blue Bear Plumbing, Heating & Air624.9★ (234)10 mi
28Heritage Home Service624.8★ (3,352)25 mi
29PerfectTemp HVAC Service614.8★ (89)3 mi
30Harmony Heating & Air Conditioning614.8★ (110)5 mi
31Presidential HVAC614.9★ (206)10 mi
32Complete Heating & Cooling Tom Fricker614.8★ (529)14 mi
33ABV Appliance Service614.8★ (156)7 mi
34Addario's Plumbing, Heating, Cooling & Electrical Services614.6★ (2,076)20 mi
35Quarry Hills Plumbing & HVAC614.9★ (409)15 mi
36Service Right, LLC614.9★ (101)6 mi
37Unified HVAC Service614.8★ (116)6 mi
38James A. Dalelis Plumbing Heating & Air Conditioning614.9★ (72)4 mi
39Unified HVAC Service614.8★ (100)6 mi
40Accurate Baker Elman614.9★ (508)17 mi
41Champion Heating & Air Conditioning614.9★ (90)7 mi
42JN Service HVAC & Plumbing614.8★ (148)9 mi
43Pann Home Services & Remodeling614.5★ (331)10 mi
44PerfectTemp HVAC Service614.9★ (85)6 mi
45Full Spectrum HVAC Service614.9★ (106)8 mi
46Accurate LLC614.8★ (149)9 mi
47HomeServe of New England614.7★ (872)19 mi
48J. W. HVAC615.0★ (162)13 mi
49T&K Mechanical614.8★ (133)9 mi
50All-Temp Systems Mechanical, LLC604.9★ (533)19 mi

How we ranked emergency HVAC contractors in Dedham

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 Dedham: questions

Which HVAC contractors in Dedham are open 24/7?

25 on this list post 24/7 hours, including Winters Home Services, Trust 1 Services Plumbing, Heating, and Air Conditioning, ARS / Rescue Rooter, Akian Plumbing, Heating, Cooling & Electric and Nicholson Plumbing, Electrical, Heating, and Air Conditioning.

Who is ranked #1 for emergency heating and cooling in Dedham, MA?

Winters Home Services is #1, with a CR Score of 65 out of 100 on emergency weights.

How are emergency HVAC contractors in Dedham 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 Dedham

  1. October 2026: CR Scores recalculated for 1,252 hvac contractors serving Dedham.
  2. October 2026: 5 duplicate listings merged.

More emergency and heating and cooling pages