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Emergency HVAC Contractors in Hagerstown, MD (2026)

Top 50 of 136 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 Hagerstown: 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 Hagerstown at a glance

Top emergency HVAC contractors in Hagerstown at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Larry & Sons Plumbing, Heating, Cooling, Drain & Electrical684.8★ (4,764)Hagerstown24/7
2Cumberland Valley Heating & Air Conditioning654.9★ (441)Hagerstown24/7
3McIntire HVAC634.9★ (160)Hagerstown24/7
4B & E Services624.9★ (154)Halfway, 6 mi away24/7
5Care Services Inc624.9★ (164)Halfway, 6 mi away24/7
6Griffith Energy Services, Inc.624.4★ (147)Hagerstown24/7
7Comfort Central Inc615.0★ (65)Halfway, 6 mi away24/7
8United Air Temp604.7★ (928)Frederick, 22 mi away24/7
9Wenbrooke Services - Electrical, Plumbing, Heating and Air604.8★ (1,208)Frederick, 25 mi away24/7
10Larry & Sons Plumbing, Heating, Cooling, Drain & Electrical604.8★ (932)Frederick, 24 mi away24/7

Call an emergency HVAC contractor in Hagerstown 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 Hagerstown, 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 136 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.

  3. #3 McIntire HVAC

    Based in Hagerstown

    63/100CR Score

    Ranked #3 because of its Google rating and trade focus: 4.9★ from 160 Google reviews, listed on Google as “HVAC contractor”.

    • 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

  4. #4 B & E Services

    Based in Halfway, 6 mi away

    62/100CR Score

    Ranked #4 because of its Google rating and trade focus: 4.9★ from 154 Google reviews, listed on Google as “HVAC contractor”.

    • 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

  5. #5 Care Services Inc

    Based in Halfway, 6 mi away

    62/100CR Score

    Ranked #5 because of its Google rating and trade focus: 4.9★ from 164 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 164 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    19 W Sunset Ave, Williamsport, MD 21795
    View profile for Care Services Inc(301) 923-4419

  7. #7 Comfort Central Inc

    Based in Halfway, 6 mi away

    61/100CR Score

    Ranked #7 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
    138 N Conococheague St, Williamsport, MD 21795
    View profile for Comfort Central Inc(301) 745-5515

  8. #8 United Air Temp

    Based in Frederick, 22 mi away

    60/100CR Score

    Ranked #8 because of its Google rating and trade focus: 4.7★ from 928 Google reviews, listed on Google as “HVAC contractor”.

    • 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

  14. #14 Warner Service

    Based in Frederick, 24 mi away

    59/100CR Score

    Ranked #14 because of its Google rating and trade focus: 4.8★ from 537 Google reviews, listed on Google as “HVAC contractor”.

    • 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

  17. #17 Frederick Air Inc

    Based in Frederick, 24 mi away

    58/100CR Score

    Ranked #17 because of its Google rating and trade focus: 4.8★ from 414 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 414 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    3 King Ave, Frederick, MD 21701
    View profile for Frederick Air Inc(301) 845-5652

  18. #18 closed

    Based in Walkersville, 22 mi away

    58/100CR Score

    Ranked #18 because of its Google rating and trade focus: 4.8★ from 240 Google reviews, listed on Google as “HVAC contractor”.

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

  19. #19 Urbana HVAC

    Based in Ballenger Creek, 25 mi away

    58/100CR Score

    Ranked #19 because of its Google rating and trade focus: 5.0★ from 182 Google reviews, listed on Google as “HVAC contractor”.

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

  22. #22 Wyant Service Experts

    Based in Frederick, 24 mi away

    57/100CR Score

    Ranked #22 because of its Google rating and trade focus: 4.8★ from 165 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 165 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    4959 New Design Rd, Frederick, MD 21703
    View profile for Wyant Service Experts(301) 781-7637

  25. #25 M & J's 4 Seasons

    Based in Fountainhead-Orchard Hills, 4 mi away

    56/100CR Score

    Ranked #25 because of its Google rating and trade focus: 3.7★ from 3 Google reviews, listed on Google as “Air conditioning contractor”.

    • 3.7★ from 3 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    Maugansville, MD 21767
    View profile for M & J's 4 Seasons(301) 698-8771

Top 50 of 136 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 Hagerstown, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Edgars Cooling & Heating564.8★ (35)19 mi
27Southern Maryland Heating & Air562.1★ (14)6 mi
28Climate Control Inc564.8★ (40)21 mi
29Rodney B Smith Plumbing Heating & Clng564.5★ (43)20 mi
30G&R Heating and Cooling555.0★ (28)22 mi
31Homeland Heating and Air Conditioning555.0★ (25)21 mi
32Your Comfort Services, Inc.554.3★ (4)13 mi
33Michael & Son Services544.0★ (88)24 mi
34Prime AC Repair Frederick545.0★ (15)24 mi
35Forever Air Duct Cleaning545.0★ (6)19 mi
36Heating & Air Solutions535.0★ (9)24 mi
37Akron Industrial Heating & Cooling534.5★ (8)23 mi
38Right A Way Heating & Cooling525.0★ (3)22 mi
39HD Heating and Cooling LLC525.0★ (4)25 mi
40Constellation Home514.8★ (93)19 mi
41Randy L Heck Plumbing & Heating514.5★ (30)22 mi
42BST Plumbing & Heating504.8★ (8)22 mi
43Cooling Services, Inc.494.3★ (6)In Hagerstown
44Warner Service Hagerstown, LLC484.4★ (5)In Hagerstown
45Knoxville LLC475.0★ (71)22 mi
46Hagerstown Heating & Cooling464.8★ (660)In Hagerstown
47Total Comfort Heating & Air Conditioning Inc.465.0★ (294)In Hagerstown
48Hahn's Heating & Cooling464.7★ (7)11 mi
49J & M Heating and Cooling LLC454.7★ (16)18 mi
50Johnson & Johnson Heating, Air Conditioning, and Plumbing, Inc.444.9★ (2,110)16 mi

How we ranked emergency HVAC contractors in Hagerstown

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 Hagerstown: questions

Which HVAC contractors in Hagerstown are open 24/7?

25 on this list post 24/7 hours, including Larry & Sons Plumbing, Heating, Cooling, Drain & Electrical, Cumberland Valley Heating & Air Conditioning, McIntire HVAC, B & E Services and Care Services Inc.

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

Larry & Sons Plumbing, Heating, Cooling, Drain & Electrical is #1, with a CR Score of 68 out of 100 on emergency weights.

How are emergency HVAC contractors in Hagerstown 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 Hagerstown

  1. October 2026: CR Scores recalculated for 136 hvac contractors serving Hagerstown.

More emergency and heating and cooling pages