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Emergency HVAC Contractors in Carney, MD (2026)

Top 50 of 541 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 Carney: Michael & Son 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 Carney at a glance

Top emergency HVAC contractors in Carney at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Michael & Son Services654.7★ (8,039)Baltimore, 6 mi away24/7
2Horizon Services - Air Conditioning, Heating, Plumbing, & Electrical634.8★ (4,514)Baltimore, 13 mi away24/7
3Complete Climate Services LLC635.0★ (786)Baltimore, 8 mi away24/7
4Blue Dot Services624.5★ (7,297)Bel Air North, 15 mi away24/7
5Elmar Heating & Cooling624.8★ (614)Timonium, 7 mi away24/7
6Maryland Heating & Air624.9★ (369)Essex, 6 mi away24/7
7At Your Service Heating and Cooling LLC624.6★ (811)Baltimore, 7 mi away24/7
8Hughes Mechanical, LLC624.8★ (408)Essex, 6 mi away24/7
9Boothe's Heating, Air, Plumbing, Drains & Electrical624.9★ (1,461)Dundalk, 15 mi away24/7
10Alpha Heating & Air Conditioning, LLC614.9★ (419)Arbutus, 9 mi away24/7

Call an emergency HVAC contractor in Carney 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 Carney, 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 541 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 Carney

    #1 Michael & Son Services

    Based in Baltimore, 6 mi away

    65/100CR Score

    Ranked #1 because of its Google rating and trade focus: 4.7★ from 8,039 Google reviews, listed on Google as “HVAC contractor”.

    • 4.7★ from 8,039 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    6420 Erdman Ave, Baltimore, MD 21205
    View profile for Michael & Son Services(410) 929-7190

  4. #4 Blue Dot Services

    Based in Bel Air North, 15 mi away

    62/100CR Score

    Ranked #4 because of its Google rating and trade focus: 4.5★ from 7,297 Google reviews, listed on Google as “Heating contractor”.

    • 4.5★ from 7,297 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    125 Industry Ln, Forest Hill, MD 21050
    View profile for Blue Dot Services(410) 846-2992

  15. #15 Farnen & Dermer

    Based in Owings Mills, 14 mi away

    61/100CR Score

    Ranked #15 because of its Google rating and trade focus: 4.8★ from 931 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 931 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    10500 Reisterstown Rd, Owings Mills, MD 21117
    View profile for Farnen & Dermer(410) 367-7777

  16. #16 Broyles HVACR

    Based in Joppatowne, 9 mi away

    61/100CR Score

    Ranked #16 because of its Google rating and trade focus: 4.9★ from 244 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 244 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    37 Neptune Dr, Joppatowne, MD 21085
    View profile for Broyles HVACR(667) 228-7015

  18. #18 A.J. Michaels

    Based in Baltimore, 6 mi away

    61/100CR Score

    Ranked #18 because of its Google rating and trade focus: 4.5★ from 309 Google reviews, listed on Google as “HVAC contractor”.

    • 4.5★ from 309 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    4512 York Rd, Baltimore, MD 21212
    View profile for A.J. Michaels(410) 435-5400

  20. #20 HGH Mechanical

    Based in Edgewood, 12 mi away

    60/100CR Score

    Ranked #20 because of its Google rating and trade focus: 4.9★ from 337 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 337 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2107 Emmorton Park Rd #111, Edgewood, MD 21040
    View profile for HGH Mechanical(410) 679-3794

  23. #23 AAA

    Based in Parkville, 2 mi away

    60/100CR Score

    Ranked #23 because of its Google rating and trade focus: 4.7★ from 60 Google reviews, listed on Google as “Air conditioning contractor”.

    • 4.7★ from 60 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2907 Taylor Ave, Parkville, MD 21234
    View profile for AAA(410) 661-7557

  24. #24 Triple E

    Based in Reisterstown, 16 mi away

    60/100CR Score

    Ranked #24 because of its Google rating and trade focus: 4.9★ from 469 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 469 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    655 Main St #1959, Reisterstown, MD 21136
    View profile for Triple E(410) 833-1133

  25. #25 Anchor Mechanical LLC

    Based in Bel Air North, 15 mi away

    60/100CR Score

    Ranked #25 because of its Google rating and trade focus: 4.9★ from 340 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 340 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1630 Robin Cir, Forest Hill, MD 21050
    View profile for Anchor Mechanical LLC(410) 452-5601

Top 50 of 541 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 Carney, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Arundel Service Experts604.7★ (472)14 mi
27Sila Heating, Air Conditioning & Plumbing604.9★ (275)14 mi
28Excel Services594.9★ (411)17 mi
29Aire Serv of Bel Air594.9★ (309)16 mi
30Fresh Air Concepts, LLC594.9★ (217)14 mi
31First Response Heating & Cooling594.8★ (285)15 mi
32United Air Temp594.4★ (88)5 mi
33Breezy Heating Ventilation and Air Conditioning594.8★ (121)11 mi
34F.H. Furr Plumbing, Heating, Air Conditioning & Electrical594.7★ (1,847)23 mi
35Rowbel Services595.0★ (32)5 mi
36Comfort Air595.0★ (65)9 mi
37Tario HVAC, LLC594.9★ (142)14 mi
38G & G Mechanical Heating & AC594.7★ (51)7 mi
39KMT Mechanical llc (HVAC)594.8★ (12)In Carney
40One Hour Air Conditioning & Heating® of Harford County594.8★ (292)17 mi
41Environmental Systems Associates594.9★ (658)23 mi
42Synergy Mechanical Solutions595.0★ (37)7 mi
43United Air Temp594.9★ (180)16 mi
44ARS / Rescue Rooter584.4★ (3,510)25 mi
45Ambient LLC584.8★ (336)19 mi
46Aire-Craft Heating & Cooling Co Inc584.8★ (26)6 mi
47Beyond Cooling LLC584.9★ (82)12 mi
48Griff's Heating and Air585.0★ (93)14 mi
49APJ HVAC and R585.0★ (43)10 mi
50Dalton Air Conditioning Repair585.0★ (44)10 mi

How we ranked emergency HVAC contractors in Carney

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 Carney: questions

Which HVAC contractors in Carney are open 24/7?

25 on this list post 24/7 hours, including Michael & Son Services, Horizon Services - Air Conditioning, Heating, Plumbing, & Electrical, Complete Climate Services LLC, Blue Dot Services and Elmar Heating & Cooling.

Who is ranked #1 for emergency heating and cooling in Carney, MD?

Michael & Son Services is #1, with a CR Score of 65 out of 100 on emergency weights.

How are emergency HVAC contractors in Carney 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 Carney

  1. October 2026: CR Scores recalculated for 541 hvac contractors serving Carney.
  2. October 2026: 2 duplicate listings merged.

More emergency and heating and cooling pages