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Emergency HVAC Contractors in Green Haven, MD (2026)

Top 50 of 651 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 Green Haven: Boothe's Heating, Air, Plumbing, Drains & 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 Green Haven at a glance

Top emergency HVAC contractors in Green Haven at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Boothe's Heating, Air, Plumbing, Drains & Electrical654.9★ (1,461)Dundalk, 3 mi away24/7
2Beltway Air Conditioning, Heating & Plumbing644.9★ (2,167)Hanover, 7 mi away24/7
3Michael & Son Services644.7★ (8,039)Baltimore, 11 mi away24/7
4Staton Heating, Cooling & Plumbing634.9★ (2,904)Annapolis, 11 mi away24/7
5Complete Climate Services LLC625.0★ (786)Baltimore, 11 mi away24/7
6Barstow & Sons Heating and Cooling624.9★ (1,127)Annapolis, 11 mi away24/7
7Horizon Services - Air Conditioning, Heating, Plumbing, & Electrical624.8★ (4,514)Baltimore, 17 mi away24/7
8One Hour Air Conditioning & Heating® of Annapolis624.8★ (367)Arnold, 5 mi away24/7
9Grove Heating & Cooling624.9★ (1,156)Crofton, 13 mi away24/7
10Ambient LLC614.8★ (336)Severn, 7 mi away24/7

Call an emergency HVAC contractor in Green Haven 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 Green Haven, 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 651 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.

  10. #10 Ambient LLC

    Based in Severn, 7 mi away

    61/100CR Score

    Ranked #10 because of its Google rating and trade focus: 4.8★ from 336 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 336 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    508 Shaw Ct #103, Severn, MD 21144
    View profile for Ambient LLC(410) 429-7280

  12. #12 Bethany Air

    Based in Edgewater, 14 mi away

    61/100CR Score

    Ranked #12 because of its Google rating and trade focus: 4.8★ from 1,251 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 1,251 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    171 MD-253, Edgewater, MD 21037
    View profile for Bethany Air(410) 431-2312

  14. #14 ARS / Rescue Rooter

    Based in Laurel, 15 mi away

    61/100CR Score

    Ranked #14 because of its Google rating and trade focus: 4.4★ from 3,510 Google reviews, listed on Google as “HVAC contractor”.

    • 4.4★ from 3,510 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    9010 Maier Rd # 105, Laurel, MD 20723
    View profile for ARS / Rescue Rooter(301) 276-4499

  18. #18 All Good Home Inc

    Based in Severna Park, 5 mi away

    61/100CR Score

    Ranked #18 because of its Google rating and trade focus: 5.0★ from 98 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 98 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    762 Dividing Rd, Severna Park, MD 21146
    View profile for All Good Home Inc(202) 439-7718

Top 50 of 651 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 Green Haven, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Belair Engineering and Service Company, Inc.604.9★ (1,421)20 mi
27Above All Heating & Cooling604.8★ (45)1 mi
28Hughes Mechanical, LLC604.8★ (408)13 mi
29United Air Temp604.8★ (253)10 mi
30ABC Cooling & Heating LLC604.7★ (247)10 mi
31ClimateCare HVAC Services, LLC.604.9★ (221)12 mi
32Contemporary Air Systems, Inc.605.0★ (195)12 mi
33F.H. Furr Plumbing, Heating, Air Conditioning & Electrical604.8★ (1,788)7 mi
34United Air Temp604.8★ (1,306)20 mi
35JDL HVAC & Plumbing Services604.8★ (678)17 mi
36Abbott Brothers Plumbing & Heating of Maryland604.8★ (354)14 mi
37Tack Mechanical LLC604.8★ (57)4 mi
38Zoned Heating and Cooling605.0★ (40)4 mi
39ROCKY LLC604.6★ (253)10 mi
40Tario HVAC, LLC594.9★ (142)11 mi
41Breezy Heating Ventilation and Air Conditioning594.8★ (121)10 mi
42Mars Air Duct Cleaning594.9★ (177)13 mi
43Shoreline Comfort595.0★ (285)17 mi
44JJ HEATING & COOLING COMPANY594.8★ (110)10 mi
45Chesapeake Comfort Systems594.8★ (382)17 mi
46United Air Temp594.8★ (171)13 mi
47Bay Area Mechanical Services Inc.594.5★ (37)4 mi
48One Hour Air Conditioning & Heating® of Baltimore594.8★ (219)15 mi
49THE ELECTRICIANS594.9★ (98)12 mi
50Beyond Cooling LLC594.9★ (82)11 mi

How we ranked emergency HVAC contractors in Green Haven

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 Green Haven: questions

Which HVAC contractors in Green Haven are open 24/7?

25 on this list post 24/7 hours, including Boothe's Heating, Air, Plumbing, Drains & Electrical, Beltway Air Conditioning, Heating & Plumbing, Michael & Son Services, Staton Heating, Cooling & Plumbing and Complete Climate Services LLC.

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

Boothe's Heating, Air, Plumbing, Drains & Electrical is #1, with a CR Score of 65 out of 100 on emergency weights.

How are emergency HVAC contractors in Green Haven 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 Green Haven

  1. October 2026: CR Scores recalculated for 651 hvac contractors serving Green Haven.
  2. October 2026: 4 duplicate listings merged.

More emergency and heating and cooling pages