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Emergency HVAC Contractors in Hunt Valley, MD (2026)

Top 50 of 499 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 Hunt Valley: 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 Hunt Valley at a glance

Top emergency HVAC contractors in Hunt Valley at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Michael & Son Services634.7★ (8,039)Baltimore, 15 mi away24/7
2Elmar Heating & Cooling634.8★ (614)Timonium, 3 mi away24/7
3Horizon Services - Air Conditioning, Heating, Plumbing, & Electrical634.8★ (4,514)Baltimore, 13 mi away24/7
4Blue Dot Services624.5★ (7,297)Bel Air North, 15 mi away24/7
5Farnen & Dermer624.8★ (931)Owings Mills, 9 mi away24/7
6Triple E614.9★ (469)Reisterstown, 10 mi away24/7
7Complete Climate Services LLC615.0★ (786)Baltimore, 15 mi away24/7
8F.H. Furr Plumbing, Heating, Air Conditioning & Electrical614.7★ (1,847)Eldersburg, 16 mi away24/7
9Alpha Heating & Air Conditioning, LLC604.9★ (419)Arbutus, 13 mi away24/7
10All-Air Systems604.8★ (56)Cockeysville, 1 mi away24/7

Call an emergency HVAC contractor in Hunt Valley 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 Hunt Valley, 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 499 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 Hunt Valley

    #1 Michael & Son Services

    Based in Baltimore, 15 mi away

    63/100CR 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

  5. #5 Farnen & Dermer

    Based in Owings Mills, 9 mi away

    62/100CR Score

    Ranked #5 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

  6. #6 Triple E

    Based in Reisterstown, 10 mi away

    61/100CR Score

    Ranked #6 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

  10. #10 All-Air Systems

    Based in Cockeysville, 1 mi away

    60/100CR Score

    Ranked #10 because of its Google rating and trade focus: 4.8★ from 56 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 56 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    400 Symphony Cir, Cockeysville, MD 21030
    View profile for All-Air Systems(410) 877-6100

  13. #13 United Air Temp

    Based in Owings Mills, 11 mi away

    60/100CR Score

    Ranked #13 because of its Google rating and trade focus: 4.9★ from 180 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 180 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    500 Redland Ct # 107, Owings Mills, MD 21117
    View profile for United Air Temp(410) 999-8288

  14. #14 Excel Services

    Based in Bel Air North, 15 mi away

    60/100CR Score

    Ranked #14 because of its Google rating and trade focus: 4.9★ from 411 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 411 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    19 Brocks Way, Jarrettsville, MD 21084
    View profile for Excel Services(410) 803-2279

  21. #21 Anchor Mechanical LLC

    Based in Bel Air North, 16 mi away

    59/100CR Score

    Ranked #21 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

  24. #24 A.J. Michaels

    Based in Baltimore, 11 mi away

    59/100CR Score

    Ranked #24 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

Top 50 of 499 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 Hunt Valley, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26First Response Heating & Cooling594.8★ (285)15 mi
27Brothers HVAC LLC594.9★ (76)9 mi
28Contemporary Air Systems, Inc.595.0★ (195)16 mi
29HGH Mechanical594.9★ (337)18 mi
30Broyles HVACR594.9★ (244)16 mi
31Reliability Home Services594.7★ (539)19 mi
32Sila Heating, Air Conditioning & Plumbing594.9★ (275)18 mi
33Aire Serv of Bel Air594.9★ (309)19 mi
34United Air Temp594.4★ (88)7 mi
35Arundel Service Experts584.7★ (472)19 mi
36Comfort Air585.0★ (65)13 mi
37AAA584.7★ (60)10 mi
38Fresh Air Concepts, LLC584.9★ (217)19 mi
39One Hour Air Conditioning & Heating® of Harford County584.8★ (292)19 mi
40Griff's Heating and Air585.0★ (93)16 mi
41Tario HVAC, LLC584.9★ (142)18 mi
42Tim Kyle Electric, Heating & Cooling585.0★ (2,777)20 mi
43ABC Cooling & Heating LLC584.7★ (247)19 mi
44Breezy Heating Ventilation and Air Conditioning584.8★ (121)16 mi
45Dalton Air Conditioning Repair585.0★ (44)12 mi
46Abbott Mechanical HVAC575.0★ (33)11 mi
47APJ HVAC and R575.0★ (43)13 mi
48Fire n Ice Hvac, Inc575.0★ (90)17 mi
49Greenfox Cooling, Heating & Plumbing574.8★ (238)21 mi
50G & G Mechanical Heating & AC574.7★ (51)12 mi

How we ranked emergency HVAC contractors in Hunt Valley

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 Hunt Valley: questions

Which HVAC contractors in Hunt Valley are open 24/7?

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

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

Michael & Son Services is #1, with a CR Score of 63 out of 100 on emergency weights.

How are emergency HVAC contractors in Hunt Valley 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 Hunt Valley

  1. October 2026: CR Scores recalculated for 499 hvac contractors serving Hunt Valley.
  2. October 2026: 2 duplicate listings merged.

More emergency and heating and cooling pages