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Emergency HVAC Contractors in Thurmont, MD (2026)

Top 50 of 166 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 Thurmont: Larry & Sons Plumbing, Heating, Cooling, Drain & Electrical, 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 Thurmont at a glance

Top emergency HVAC contractors in Thurmont at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Larry & Sons Plumbing, Heating, Cooling, Drain & Electrical914.8★ (4,764)Hagerstown, 18 mi away24/7
2Larry & Sons Plumbing, Heating, Cooling, Drain & Electrical894.8★ (932)Frederick, 16 mi away24/7
3Wenbrooke Services - Electrical, Plumbing, Heating and Air894.8★ (1,208)Frederick, 18 mi away24/7
4Warner Service894.8★ (537)Frederick, 15 mi away24/7
5Markool Heating Cooling Plumbing894.9★ (547)Frederick, 17 mi away24/7
6Frederick Air Inc884.8★ (414)Frederick, 15 mi away24/7
7United Air Temp884.7★ (928)Frederick, 17 mi away24/7
8closed884.8★ (240)Walkersville, 13 mi away24/7
9Cumberland Valley Heating & Air Conditioning884.9★ (441)Hagerstown, 19 mi away24/7
10Apple Plumbing, Heating, & Air884.9★ (679)Westminster, 22 mi away24/7

Call an emergency HVAC contractor in Thurmont 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 Thurmont, 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 166 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.

  4. #4 Warner Service

    Based in Frederick, 15 mi away

    89/100CR Score

    Ranked #4 because of its Google rating and availability: 4.8★ from 537 Google reviews, open 24/7.

    • 4.8★ from 537 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    217 Monroe Ave, Frederick, MD 21701
    View profile for Warner Service(301) 200-9774

  7. #7 United Air Temp

    Based in Frederick, 17 mi away

    88/100CR Score

    Ranked #7 because of its Google rating and availability: 4.7★ from 928 Google reviews, open 24/7.

    • 4.7★ from 928 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    5305 Jefferson Pike Suite 5, Frederick, MD 21703
    View profile for United Air Temp(240) 680-9304

  8. #8 closed

    Based in Walkersville, 13 mi away

    88/100CR Score

    Ranked #8 because of its Google rating and availability: 4.8★ from 240 Google reviews, open 24/7.

    • 4.8★ from 240 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for closed(301) 900-8593

  11. #11 Urbana HVAC

    Based in Ballenger Creek, 17 mi away

    88/100CR Score

    Ranked #11 because of its Google rating and availability: 5.0★ from 182 Google reviews, open 24/7.

    • 5.0★ from 182 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for Urbana HVAC(240) 723-3860

  14. #14 McIntire HVAC

    Based in Hagerstown, 17 mi away

    87/100CR Score

    Ranked #14 because of its Google rating and availability: 4.9★ from 160 Google reviews, open 24/7.

    • 4.9★ from 160 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    313 E Wilson Blvd Suite 3, Hagerstown, MD 21740
    View profile for McIntire HVAC(240) 527-5945

  21. #21 B & E Services

    Based in Halfway, 21 mi away

    86/100CR Score

    Ranked #21 because of its Google rating and availability: 4.9★ from 154 Google reviews, open 24/7.

    • 4.9★ from 154 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    10228 Governor Lane Boulevard #3011, Williamsport, MD 21795
    View profile for B & E Services(301) 678-1927

Top 50 of 166 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 Thurmont, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Comfort Central Inc845.0★ (65)22 mi
27Prime AC Repair Frederick835.0★ (15)16 mi
28G&R Heating and Cooling835.0★ (28)21 mi
29Right-A-Way Heating & Cooling835.0★ (17)13 mi
30Right A Way Heating & Cooling835.0★ (3)10 mi
31Michael & Son Services824.0★ (88)16 mi
32Wivell's Heating and Air Conditioning, LLC825.0★ (7)17 mi
33Bob Jones Plumbing & Heating Inc824.7★ (140)16 mi
34Siegman Forced Air Systems, Inc.824.7★ (30)24 mi
35ClemAIR Heating & Cooling, LLC815.0★ (9)16 mi
36Heating & Air Solutions815.0★ (9)21 mi
37Akron Industrial Heating & Cooling814.5★ (8)15 mi
38M&M Welding and Fabricators, Inc.814.7★ (12)23 mi
39Precision Westminster HVAC Repair815.0★ (10)23 mi
40Precision Heating & Cooling, Inc.802.8★ (12)13 mi
41Constellation Home794.8★ (93)16 mi
42B G's Services Co Heating A/C792.6★ (5)15 mi
43Reliable HVAC inc795.0★ (6)22 mi
44M & J's 4 Seasons783.7★ (3)18 mi
45RHEyler Plumbing and Heating, LLC784.5★ (17)13 mi
46BST Plumbing & Heating784.8★ (8)13 mi
47Knoxville LLC775.0★ (71)23 mi
48Southern Maryland Heating & Air762.1★ (14)21 mi
49Efficient Heating & Air Conditioning765.0★ (3)In Thurmont
50Level Up Plumbing & Heating765.0★ (8)20 mi

How we ranked emergency HVAC contractors in Thurmont

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 Thurmont: questions

Which HVAC contractors in Thurmont are open 24/7?

25 on this list post 24/7 hours, including Larry & Sons Plumbing, Heating, Cooling, Drain & Electrical, Larry & Sons Plumbing, Heating, Cooling, Drain & Electrical, Wenbrooke Services - Electrical, Plumbing, Heating and Air, Warner Service and Markool Heating Cooling Plumbing.

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

Larry & Sons Plumbing, Heating, Cooling, Drain & Electrical is #1, with a CR Score of 91 out of 100 on emergency weights.

How are emergency HVAC contractors in Thurmont 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 Thurmont

  1. October 2026: CR Scores recalculated for 166 hvac contractors serving Thurmont.

More emergency and heating and cooling pages