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Emergency HVAC Contractors in Lutherville-Timonium, MD (2026)

Top 50 of 574 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 Lutherville-Timonium: 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 Lutherville-Timonium at a glance

Top emergency HVAC contractors in Lutherville-Timonium at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Michael & Son Services924.7★ (8,039)Baltimore, 10 mi away24/7
2Horizon Services - Air Conditioning, Heating, Plumbing, & Electrical914.8★ (4,514)Baltimore, 11 mi away24/7
3Elmar Heating & Cooling914.8★ (614)Timonium, 2 mi away24/7
4Complete Climate Services LLC905.0★ (786)Baltimore, 11 mi away24/7
5Farnen & Dermer904.8★ (931)Owings Mills, 9 mi away24/7
6Alpha Heating & Air Conditioning, LLC894.9★ (419)Arbutus, 9 mi away24/7
7Abbott Brothers Plumbing & Heating of Maryland894.8★ (354)Baltimore, 8 mi away24/7
8Blue Dot Services894.5★ (7,297)Bel Air North, 16 mi away24/7
9Triple E894.9★ (469)Reisterstown, 11 mi away24/7
10Beltway Air Conditioning, Heating & Plumbing894.9★ (2,167)Hanover, 20 mi away24/7

Call an emergency HVAC contractor in Lutherville-Timonium 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 Lutherville-Timonium, 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 574 is on the HVAC contractors page.

Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  5. #5 Farnen & Dermer

    Based in Owings Mills, 9 mi away

    90/100CR Score

    Ranked #5 because of its Google rating and availability: 4.8★ from 931 Google reviews, open 24/7.

    • 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

  8. #8 Blue Dot Services

    Based in Bel Air North, 16 mi away

    89/100CR Score

    Ranked #8 because of its Google rating and availability: 4.5★ from 7,297 Google reviews, open 24/7.

    • 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

  9. #9 Triple E

    Based in Reisterstown, 11 mi away

    89/100CR Score

    Ranked #9 because of its Google rating and availability: 4.9★ from 469 Google reviews, open 24/7.

    • 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

  20. #20 United Air Temp

    Based in Owings Mills, 11 mi away

    87/100CR Score

    Ranked #20 because of its Google rating and availability: 4.9★ from 180 Google reviews, open 24/7.

    • 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

  22. #22 Broyles HVACR

    Based in Joppatowne, 14 mi away

    87/100CR Score

    Ranked #22 because of its Google rating and availability: 4.9★ from 244 Google reviews, open 24/7.

    • 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

  23. #23 A.J. Michaels

    Based in Baltimore, 7 mi away

    87/100CR Score

    Ranked #23 because of its Google rating and availability: 4.5★ from 309 Google reviews, open 24/7.

    • 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

  25. #25 HGH Mechanical

    Based in Edgewood, 16 mi away

    87/100CR Score

    Ranked #25 because of its Google rating and availability: 4.9★ from 337 Google reviews, open 24/7.

    • 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

Top 50 of 574 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 Lutherville-Timonium, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Reliability Home Services874.7★ (539)14 mi
27All-Air Systems874.8★ (56)5 mi
28Arundel Service Experts874.7★ (472)15 mi
29Brothers HVAC LLC874.9★ (76)9 mi
30First Class Mechanical874.9★ (580)21 mi
31Fresh Air Concepts, LLC874.9★ (217)15 mi
32Environmental Systems Associates864.9★ (658)22 mi
33First Response Heating & Cooling864.8★ (285)15 mi
34Aire Serv of Bel Air864.9★ (309)18 mi
35Tario HVAC, LLC864.9★ (142)14 mi
36United Air Temp864.4★ (88)3 mi
37ABC Cooling & Heating LLC864.7★ (247)14 mi
38Apple Plumbing, Heating, & Air864.9★ (679)24 mi
39Breezy Heating Ventilation and Air Conditioning864.8★ (121)12 mi
40Comfort Air865.0★ (65)12 mi
41Dalton Air Conditioning Repair865.0★ (44)9 mi
42Excel Services864.9★ (411)17 mi
43Warrior Plumbing & Heating864.9★ (400)7 mi
44Beyond Cooling LLC864.9★ (82)13 mi
45G & G Mechanical Heating & AC854.7★ (51)8 mi
46Griff's Heating and Air855.0★ (93)16 mi
47Greenfox Cooling, Heating & Plumbing854.8★ (238)18 mi
48One Hour Air Conditioning & Heating® of Harford County854.8★ (292)19 mi
49Ambient LLC854.8★ (336)20 mi
50Free Da Block Drain Cleaning Services, LLC,855.0★ (20)7 mi

How we ranked emergency HVAC contractors in Lutherville-Timonium

Emergency lists move 10 points of the CR Score from reputation to availability: 25% and 20%. 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
Reputation25%Bayesian-adjusted Google star rating
Credentials15%Active state license 0.6, bond 0.2, workers’ comp 0.2
Review volume10%log10(reviews + 1) against the list maximum
Recency10%Share of reviews from the last 12 months
Availability20%Weekly open hours, Saturday, Sunday, 24/7 or same-day
Trade focus10%Google main category 1.0, business name 0.7, additional category 0.5
Proximity5%1.0 when based in the city, falling to 0 at the trade’s radius
Completeness5%Website, photos, description, hours, claimed profile (0.2 each)

Emergency HVAC contractors in Lutherville-Timonium: questions

Which HVAC contractors in Lutherville-Timonium are open 24/7?

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

Who is ranked #1 for emergency heating and cooling in Lutherville-Timonium, MD?

Michael & Son Services is #1, with a CR Score of 92 out of 100 on emergency weights.

How are emergency HVAC contractors in Lutherville-Timonium ranked?

Emergency lists move 10 points of the CR Score from reputation to availability: 25% and 20%. 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 Lutherville-Timonium

  1. October 2026: CR Scores recalculated for 574 hvac contractors serving Lutherville-Timonium.
  2. October 2026: 2 duplicate listings merged.

More emergency and heating and cooling pages