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Emergency HVAC Contractors in Redland, MD (2026)

Top 50 of 1,020 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 Redland: GAC 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 Redland at a glance

Top emergency HVAC contractors in Redland at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1GAC Services674.9★ (6,908)Gaithersburg, 2 mi away24/7
2F.H. Furr Plumbing, Heating, Air Conditioning & Electrical664.7★ (5,985)Rockville, 4 mi away24/7
3Presidential, Inc.654.9★ (1,701)Gaithersburg, 2 mi away24/7
4Michael Bonsby HVAC, Plumbing & Electrical654.8★ (2,083)Gaithersburg, 2 mi away24/7
5Parker Pearce Service Experts654.8★ (1,700)Gaithersburg, 2 mi away24/7
6Len The Plumber Heating & Air, LLC644.6★ (8,136)Silver Spring, 11 mi away24/7
7Vito Services644.7★ (1,351)Rockville, 3 mi away24/7
8Cool Breeze Plumbing, Heating & A/C644.8★ (666)Gaithersburg, 2 mi away24/7
9Cyprus Air Heating, Cooling and Fireplaces634.7★ (1,402)Rockville, 5 mi away24/7
10Metro Services HVAC634.9★ (298)Gaithersburg, 3 mi away24/7

Call an emergency HVAC contractor in Redland 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 Redland, 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 1,020 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 Redland

    #1 GAC Services

    Based in Gaithersburg, 2 mi away

    67/100CR Score

    Ranked #1 because of its Google rating and trade focus: 4.9★ from 6,908 Google reviews, listed on Google as “Heating contractor”.

    • 4.9★ from 6,908 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    227 E Deer Park Dr, Gaithersburg, MD 20877
    View profile for GAC Services(301) 202-1641

  3. #3 Presidential, Inc.

    Based in Gaithersburg, 2 mi away

    65/100CR Score

    Ranked #3 because of its Google rating and trade focus: 4.9★ from 1,701 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 1,701 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    8000 Cessna Ave, Gaithersburg, MD 20879
    View profile for Presidential, Inc.(301) 719-3315

  7. #7 Vito Services

    Based in Rockville, 3 mi away

    64/100CR Score

    Ranked #7 because of its Google rating and trade focus: 4.7★ from 1,351 Google reviews, listed on Google as “HVAC contractor”.

    • 4.7★ from 1,351 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    681 Southlawn Ln, Rockville, MD 20850
    View profile for Vito Services(301) 861-3908

  10. #10 Metro Services HVAC

    Based in Gaithersburg, 3 mi away

    63/100CR Score

    Ranked #10 because of its Google rating and trade focus: 4.9★ from 298 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 298 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    30 N Summit Ave Unit 2, Gaithersburg, MD 20877
    View profile for Metro Services HVAC(240) 676-1804

  11. #11 CroppMetcalfe

    Based in Fairfax, 19 mi away

    62/100CR Score

    Ranked #11 because of its Google rating and trade focus: 4.8★ from 7,638 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 7,638 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    8421 Hilltop Rd, Fairfax, VA 22031
    View profile for CroppMetcalfe(703) 420-5030

  13. #13 Snell Home Services

    Based in Sterling, 20 mi away

    62/100CR Score

    Ranked #13 because of its Google rating and trade focus: 4.8★ from 5,283 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 5,283 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    22977 Eaglewood Ct STE 130, Sterling, VA 20166
    View profile for Snell Home Services(571) 470-7206

  16. #16 AllTech Services, Inc

    Based in Sterling, 20 mi away

    61/100CR Score

    Ranked #16 because of its Google rating and trade focus: 4.9★ from 2,807 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 2,807 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    101-A Executive Dr STE 200, Sterling, VA 20166
    View profile for AllTech Services, Inc(703) 214-2940

  20. #20 John Nugent & Sons

    Based in Sterling, 17 mi away

    61/100CR Score

    Ranked #20 because of its Google rating and trade focus: 4.8★ from 1,701 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 1,701 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    45921 Maries Rd, Sterling, VA 20166
    View profile for John Nugent & Sons(571) 506-5228

  21. #21 Michael & Son Services

    Based in Sterling, 18 mi away

    61/100CR Score

    Ranked #21 because of its Google rating and trade focus: 4.9★ from 1,501 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 1,501 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    45681 Oakbrook Ct STE 101, Sterling, VA 20166
    View profile for Michael & Son Services(703) 289-0565

  22. #22 United Air Temp

    Based in Sterling, 18 mi away

    61/100CR Score

    Ranked #22 because of its Google rating and trade focus: 4.8★ from 2,161 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 2,161 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    45570 Shepard Dr Ste. #6, Sterling, VA 20164
    View profile for United Air Temp(571) 888-8078

  23. #23 JC & JC HVAC

    Based in Silver Spring, 10 mi away

    61/100CR Score

    Ranked #23 because of its Google rating and trade focus: 4.7★ from 503 Google reviews, listed on Google as “HVAC contractor”.

    • 4.7★ from 503 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1614 Maydale Dr, Silver Spring, MD 20905
    View profile for JC & JC HVAC(301) 364-3729

  24. #24 M.E. Flow

    Based in Leesburg, 22 mi away

    61/100CR Score

    Ranked #24 because of its Google rating and trade focus: 4.8★ from 3,718 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 3,718 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    12 Cardinal Park Dr SE STE 107, Leesburg, VA 20175
    View profile for M.E. Flow(571) 322-8847

Top 50 of 1,020 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 Redland, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26OHA HVAC, Plumbing, Chimney & Fireplaces614.9★ (1,794)19 mi
27AMS Air Conditioning & Heating614.9★ (116)5 mi
28John C. Flood614.8★ (4,976)24 mi
29Mario Bro, LLC615.0★ (53)2 mi
30Horizon Services - Air Conditioning, Heating, Plumbing, & Electrical604.8★ (4,514)24 mi
31NARFIX HEATING AND AIR CONDITIONING LLC605.0★ (293)13 mi
32United Air Temp604.8★ (1,306)18 mi
33ARS / Rescue Rooter604.4★ (3,510)17 mi
34Thomas E Clark Inc604.8★ (299)11 mi
35Tim Whistler Plumbing, Gas Fitting, HVAC, and Electrical604.8★ (291)11 mi
36Environmental Systems Associates604.9★ (658)17 mi
37One Hour Air Conditioning & Heating® of Mount Airy604.7★ (852)15 mi
38Abdul HVAC605.0★ (34)2 mi
39JDL HVAC & Plumbing Services604.8★ (678)16 mi
40Cardinal Plumbing Heating & Air Inc604.9★ (745)18 mi
41Magnolia Plumbing, Heating & Cooling604.4★ (1,519)16 mi
42Meade's Heating and Air605.0★ (710)20 mi
43United Air Temp604.7★ (75)5 mi
44Krafft Service Corporation604.9★ (1,631)23 mi
45Beltway Air Conditioning, Heating & Plumbing604.9★ (2,167)25 mi
46AZA heating, cooling, plumbing & construction605.0★ (959)23 mi
47Air 1 Mechanical Heating and Cooling594.9★ (440)17 mi
48Nelson's HVAC, LLC594.9★ (627)19 mi
49Wenbrooke Services - Electrical, Plumbing, Heating and Air594.8★ (1,208)22 mi
50B&B Air Conditioning & Heating Service595.0★ (357)18 mi

How we ranked emergency HVAC contractors in Redland

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 Redland: questions

Which HVAC contractors in Redland are open 24/7?

25 on this list post 24/7 hours, including GAC Services, F.H. Furr Plumbing, Heating, Air Conditioning & Electrical, Presidential, Inc., Michael Bonsby HVAC, Plumbing & Electrical and Parker Pearce Service Experts.

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

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

How are emergency HVAC contractors in Redland 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 Redland

  1. October 2026: CR Scores recalculated for 1,020 hvac contractors serving Redland.
  2. October 2026: 7 duplicate listings merged.

More emergency and heating and cooling pages