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Emergency HVAC Contractors in Bel Air North, MD (2026)

Top 50 of 311 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 Bel Air North: Blue Dot 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 Bel Air North at a glance

Top emergency HVAC contractors in Bel Air North at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Blue Dot Services674.5★ (7,297)Bel Air North24/7
2Excel Services644.9★ (411)Bel Air North24/7
3Anchor Mechanical LLC644.9★ (340)Bel Air North24/7
4Aire Serv of Bel Air644.9★ (309)Bel Air North24/7
5First Response Heating & Cooling634.8★ (285)Bel Air North24/7
6One Hour Air Conditioning & Heating® of Harford County634.8★ (292)Bel Air North24/7
7Michael & Son Services634.7★ (8,039)Baltimore, 20 mi away24/7
8Horizon Services - Air Conditioning, Heating, Plumbing & Electrical634.8★ (2,282)Havre de Grace, 15 mi away24/7
9HGH Mechanical624.9★ (337)Edgewood, 8 mi away24/7
10Griff's Heating and Air625.0★ (93)Bel Air, 2 mi away24/7

Call an emergency HVAC contractor in Bel Air North 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 Bel Air North, 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 311 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 Bel Air North

    #1 Blue Dot Services

    Based in Bel Air North

    67/100CR Score

    Ranked #1 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

  2. #2 Excel Services

    Based in Bel Air North

    64/100CR Score

    Ranked #2 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

  9. #9 HGH Mechanical

    Based in Edgewood, 8 mi away

    62/100CR Score

    Ranked #9 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

  13. #13 Broyles HVACR

    Based in Joppatowne, 10 mi away

    61/100CR Score

    Ranked #13 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

  14. #14 Smart Energy Systems

    Based in Bel Air, 2 mi away

    61/100CR Score

    Ranked #14 because of its Google rating and trade focus: 4.8★ from 64 Google reviews, listed on Google as “Heating contractor”.

    • 4.8★ from 64 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1300 Enterprise Ct #105, Bel Air, MD 21014
    View profile for Smart Energy Systems(410) 989-4582

  16. #16 Comfort Air

    Based in Fallston, 5 mi away

    60/100CR Score

    Ranked #16 because of its Google rating and trade focus: 5.0★ from 65 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 65 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2713 Belair Rd, Fallston, MD 21047
    View profile for Comfort Air(443) 416-2088

  17. #17 Excel Aire Abingdon

    Based in Bel Air North

    60/100CR Score

    Ranked #17 because of its Google rating and trade focus: 5.0★ from 27 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 27 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    3085 Benefit Ct, Abingdon, MD 21009
    View profile for Excel Aire Abingdon(240) 712-5472

  20. #20 APJ HVAC and R

    Based in Fallston, 4 mi away

    60/100CR Score

    Ranked #20 because of its Google rating and trade focus: 5.0★ from 43 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 43 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2403 Harford Rd, Fallston, MD 21047
    View profile for APJ HVAC and R(410) 493-4432

  24. #24 Farnen & Dermer

    Based in Owings Mills, 24 mi away

    59/100CR Score

    Ranked #24 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

Top 50 of 311 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 Bel Air North, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Krause Heating & Air Conditioning594.8★ (14)In Bel Air North
27Mechanical & Gas Services595.0★ (13)In Bel Air North
28Contemporary Air Systems, Inc.595.0★ (195)18 mi
29Carrington Heating & Air Conditioning595.0★ (20)4 mi
30Reliability Home Services594.7★ (539)20 mi
31Alpha Heating & Air Conditioning, LLC594.9★ (419)22 mi
32Abbott Brothers Plumbing & Heating of Maryland594.8★ (354)21 mi
33Bigfoot Heating & Cooling584.9★ (12)2 mi
34Triple E584.9★ (469)25 mi
35A.J. Michaels584.5★ (309)19 mi
36ABC Cooling & Heating LLC584.7★ (247)20 mi
37Sheffield Air Duct Cleaning585.0★ (5)In Bel Air North
38Black Horse Heating & Air Conditoning LLC585.0★ (5)In Bel Air North
39Mars Air Duct Cleaning584.9★ (177)21 mi
40Synergy Mechanical Solutions585.0★ (37)12 mi
41One Hour Air Conditioning & Heating® of Baltimore574.8★ (219)22 mi
42Applied575.0★ (6)2 mi
43New Covenant Heating & Air 32 Years in business574.7★ (27)10 mi
44All-Air Systems574.8★ (56)16 mi
45AAA574.7★ (60)15 mi
46Straight Plumbing Llc574.9★ (203)In Bel Air North
47Rowbel Services575.0★ (32)16 mi
48United Air Temp574.4★ (88)17 mi
49Soul HVAC575.0★ (10)9 mi
50Breezy Heating Ventilation and Air Conditioning564.8★ (121)24 mi

How we ranked emergency HVAC contractors in Bel Air North

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 Bel Air North: questions

Which HVAC contractors in Bel Air North are open 24/7?

25 on this list post 24/7 hours, including Blue Dot Services, Excel Services, Anchor Mechanical LLC, Aire Serv of Bel Air and First Response Heating & Cooling.

Who is ranked #1 for emergency heating and cooling in Bel Air North, MD?

Blue Dot Services is #1, with a CR Score of 67 out of 100 on emergency weights.

How are emergency HVAC contractors in Bel Air North 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 Bel Air North

  1. October 2026: CR Scores recalculated for 311 hvac contractors serving Bel Air North.
  2. October 2026: 2 duplicate listings merged.

More emergency and heating and cooling pages