Skip to content
ContractorsRanked

Emergency HVAC Contractors in Medford, MA (2026)

Top 50 of 1,237 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 Medford: 128 Plumbing, Heating, Cooling & Electric, 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 Medford at a glance

Top emergency HVAC contractors in Medford at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1128 Plumbing, Heating, Cooling & Electric674.9★ (3,912)Wakefield, 6 mi away24/7
2Winters Home Services664.8★ (2,862)Watertown, 5 mi away24/7
3Central Cooling & Heating664.9★ (3,169)Woburn, 7 mi away24/7
4Akian Plumbing, Heating, Cooling & Electric654.8★ (1,625)Watertown, 7 mi away24/7
5Heritage Home Service654.8★ (3,352)Wilmington, 13 mi away24/7
6Cranney Home Services644.8★ (4,220)Danvers, 15 mi away24/7
7Addario's Plumbing, Heating, Cooling & Electrical Services644.6★ (2,076)Wilmington, 8 mi away24/7
8Green Tech Plumbing & Heating644.8★ (451)Somerville, 2 mi away24/7
9Trust 1 Services Plumbing, Heating, and Air Conditioning644.8★ (1,567)Quincy, 10 mi away24/7
10Cooling Unlimited, Inc.644.8★ (741)Reading, 7 mi away24/7

Call an emergency HVAC contractor in Medford 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 Medford, 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 1,237 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.

  5. #5 Heritage Home Service

    Based in Wilmington, 13 mi away

    65/100CR Score

    Ranked #5 because of its Google rating and trade focus: 4.8★ from 3,352 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 3,352 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    323 Andover St STE 2, Wilmington, MA 01887
    View profile for Heritage Home Service(978) 254-4602

  15. #15 Papalia Home Services

    Based in Acton, 22 mi away

    63/100CR Score

    Ranked #15 because of its Google rating and trade focus: 4.9★ from 3,978 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 3,978 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1220 Liberty Square Rd, Boxborough, MA 01719
    View profile for Papalia Home Services(978) 897-1701

  16. #16 Super Service Today

    Based in Danvers, 13 mi away

    63/100CR Score

    Ranked #16 because of its Google rating and trade focus: 4.7★ from 1,672 Google reviews, listed on Google as “HVAC contractor”.

    • 4.7★ from 1,672 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    7 Healy Ct, Danvers, MA 01923
    View profile for Super Service Today(781) 568-9075

  21. #21 Presidential HVAC

    Based in Boston, 5 mi away

    63/100CR Score

    Ranked #21 because of its Google rating and trade focus: 4.9★ from 206 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 206 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    31 Milk St, Boston, MA 02109
    View profile for Presidential HVAC(857) 895-1220

Top 50 of 1,237 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 Medford, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26ARS / Rescue Rooter624.6★ (2,547)19 mi
27HL Bowman Inc Plumbing Heating & AC624.8★ (1,026)16 mi
28ABV Appliance624.8★ (300)9 mi
29ABV Appliance Service624.8★ (156)6 mi
30Excel Mechanical624.8★ (444)12 mi
31Mike Giasullo Oil Burner Service Inc.625.0★ (476)16 mi
32Obie Comfort Solutions624.8★ (1,322)19 mi
33Blue Bear Plumbing Heating & Air614.8★ (2,030)22 mi
34Comfort Masters HVAC Service614.8★ (112)5 mi
35128 Plumbing, Heating, Cooling & Electric615.0★ (443)16 mi
36Boston Budget Plumbing Heating and Cooling614.8★ (382)12 mi
37Precision Climate Heating & Air Conditioning614.8★ (90)4 mi
38Aspinwall Baystate Plumbing, Heating, Air Conditioning614.8★ (953)18 mi
39KEN's HVAC SERVICE615.0★ (97)7 mi
40128 Plumbing, Heating, Cooling & Electric615.0★ (562)18 mi
41Marciano Plumbing & Heating614.9★ (115)8 mi
42TBros - Trethewey Brothers Inc614.7★ (232)9 mi
43Full Spectrum HVAC Service614.9★ (106)7 mi
44A. Fagundes Plumbing & Heating Inc.614.8★ (1,626)23 mi
45A&L Plumbing, Heating, and AC Repair614.9★ (169)10 mi
46New England Ductless614.8★ (780)18 mi
47Green Energy AC Heating & Plumbing Repair614.8★ (257)12 mi
48Service Right, LLC614.9★ (101)8 mi
49Silco Plumbing | HVAC in Stoneham MA614.8★ (68)5 mi
50Chilli Willie Plumbing HVAC & Mechanical Inc614.8★ (69)5 mi

How we ranked emergency HVAC contractors in Medford

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 Medford: questions

Which HVAC contractors in Medford are open 24/7?

25 on this list post 24/7 hours, including 128 Plumbing, Heating, Cooling & Electric, Winters Home Services, Central Cooling & Heating, Akian Plumbing, Heating, Cooling & Electric and Heritage Home Service.

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

128 Plumbing, Heating, Cooling & Electric is #1, with a CR Score of 67 out of 100 on emergency weights.

How are emergency HVAC contractors in Medford 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 Medford

  1. October 2026: CR Scores recalculated for 1,237 hvac contractors serving Medford.
  2. October 2026: 9 duplicate listings merged.

More emergency and heating and cooling pages