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Emergency HVAC Contractors in Westwood, MA (2026)

Top 50 of 1,198 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 Westwood: Nicholson Plumbing, Electrical, Heating, and 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 Westwood at a glance

Top emergency HVAC contractors in Westwood at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Nicholson Plumbing, Electrical, Heating, and Air Conditioning654.8★ (2,950)Holliston, 9 mi away24/7
2Winters Home Services644.8★ (2,862)Watertown, 11 mi away24/7
3ARS / Rescue Rooter644.6★ (2,547)Stoughton, 9 mi away24/7
4Akian Plumbing, Heating, Cooling & Electric634.8★ (1,625)Watertown, 11 mi away24/7
5Trust 1 Services Plumbing, Heating, and Air Conditioning634.8★ (1,567)Quincy, 11 mi away24/7
6Obie Comfort Solutions634.8★ (1,322)Framingham, 10 mi away24/7
7HL Bowman Inc Plumbing Heating & AC634.8★ (1,026)Braintree, 10 mi away24/7
8Boston Standard Company634.7★ (2,808)Weymouth, 15 mi away24/7
9Yellow Dog Plumbing, Heating & Cooling635.0★ (259)Needham, 6 mi away24/7
10128 Plumbing, Heating, Cooling & Electric624.9★ (3,912)Wakefield, 21 mi away24/7

Call an emergency HVAC contractor in Westwood 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 Westwood, 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 1,198 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 ARS / Rescue Rooter

    Based in Stoughton, 9 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

  14. #14 Notturno Home Services

    Based in Blackstone, 17 mi away

    62/100CR Score

    Ranked #14 because of its Google rating and trade focus: 4.9★ from 1,586 Google reviews, listed on Google as “Heating contractor”.

    • 4.9★ from 1,586 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1271 Pulaski Blvd, Bellingham, MA 02019
    View profile for Notturno Home Services(508) 413-6209

  25. #25 Accurate Baker Elman

    Based in Franklin, 14 mi away

    61/100CR Score

    Ranked #25 because of its Google rating and trade focus: 4.9★ from 508 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 508 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    120 Grove St, Franklin, MA 02038
    View profile for Accurate Baker Elman(508) 301-3470

Top 50 of 1,198 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 Westwood, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26James A. Dalelis Plumbing Heating & Air Conditioning614.9★ (72)2 mi
27New England Ductless614.8★ (780)15 mi
28Quarry Hills Plumbing & HVAC614.9★ (409)13 mi
29A&L Plumbing, Heating, and AC Repair614.9★ (169)8 mi
30GEM Plumbing and Heating614.6★ (6,353)24 mi
31TBros - Trethewey Brothers Inc614.7★ (232)7 mi
32JN Service HVAC & Plumbing614.8★ (148)6 mi
33ABV Appliance614.8★ (300)11 mi
34All-Temp Systems Mechanical, LLC614.9★ (533)16 mi
35Full Spectrum HVAC Service614.8★ (82)3 mi
36Harmony Heating & Air Conditioning614.8★ (110)6 mi
37Green Tech Plumbing & Heating614.8★ (451)15 mi
38BDL Heating & Cooling614.9★ (400)15 mi
39CPS Heating & Cooling604.9★ (781)20 mi
40ABV Appliance Service604.8★ (156)10 mi
41Addario's Plumbing, Heating, Cooling & Electrical Services604.6★ (2,076)22 mi
42Champion Heating & Air Conditioning604.9★ (90)8 mi
43J. W. HVAC605.0★ (162)13 mi
44Michael Grella Plumbing & Heating604.6★ (62)3 mi
45Precision Home Services604.9★ (1,017)22 mi
46Presidential HVAC604.9★ (206)13 mi
47Unified HVAC Service604.8★ (100)7 mi
48Full Spectrum HVAC Service604.9★ (106)9 mi
49Accurate LLC604.8★ (149)11 mi
50PerfectTemp HVAC Service604.9★ (85)8 mi

How we ranked emergency HVAC contractors in Westwood

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 Westwood: questions

Which HVAC contractors in Westwood are open 24/7?

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

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

Nicholson Plumbing, Electrical, Heating, and Air Conditioning is #1, with a CR Score of 65 out of 100 on emergency weights.

How are emergency HVAC contractors in Westwood 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 Westwood

  1. October 2026: CR Scores recalculated for 1,198 hvac contractors serving Westwood.
  2. October 2026: 6 duplicate listings merged.

More emergency and heating and cooling pages