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Emergency HVAC Contractors in Alexandria, VA (2026)

Top 50 of 1,044 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 Alexandria: 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 Alexandria at a glance

Top emergency HVAC contractors in Alexandria at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Michael & Son Services684.7★ (15,537)Alexandria24/7
2John C. Flood674.8★ (4,976)Alexandria24/7
3Krafft Service Corporation654.9★ (1,631)Alexandria24/7
4AZA heating, cooling, plumbing & construction655.0★ (959)Alexandria24/7
5United Air Temp654.8★ (1,318)Alexandria24/7
6CroppMetcalfe644.8★ (7,638)Fairfax, 11 mi away24/7
7United Air Temp644.8★ (1,775)Fort Washington, 4 mi away24/7
8Caffi Services644.9★ (508)Alexandria24/7
9AG Services – Electrical, Air Conditioning, Heating & Plumbing644.9★ (440)Alexandria24/7
10Cyprus Air Heating, Cooling and Fireplaces644.3★ (2,189)Alexandria24/7

Call an emergency HVAC contractor in Alexandria 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 Alexandria, 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 1,044 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.

  2. #2 John C. Flood

    Based in Alexandria

    67/100CR Score

    Ranked #2 because of its Google rating and trade focus: 4.8★ from 4,976 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 4,976 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    6430 General Green Way, Alexandria, VA 22312
    View profile for John C. Flood(571) 605-7008

  5. #5 United Air Temp

    Based in Alexandria

    65/100CR Score

    Ranked #5 because of its Google rating and trade focus: 4.8★ from 1,318 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 1,318 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    6094 Franconia Rd # B, Alexandria, VA 22310
    View profile for United Air Temp(703) 762-2488

  6. #6 CroppMetcalfe

    Based in Fairfax, 11 mi away

    64/100CR Score

    Ranked #6 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

  7. #7 United Air Temp

    Based in Fort Washington, 4 mi away

    64/100CR Score

    Ranked #7 because of its Google rating and trade focus: 4.8★ from 1,775 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 1,775 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    5620 St Barnabas Rd Ste 240, Fort Washington, MD 20744
    View profile for United Air Temp(240) 342-3956

  8. #8 Caffi Services

    Based in Alexandria

    64/100CR Score

    Ranked #8 because of its Google rating and trade focus: 4.9★ from 508 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 508 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1313 Powhatan St, Alexandria, VA 22314
    View profile for Caffi Services(703) 962-6052

  15. #15 United Air Temp

    Based in Lorton, 8 mi away

    63/100CR Score

    Ranked #15 because of its Google rating and trade focus: 4.4★ from 4,301 Google reviews, listed on Google as “HVAC contractor”.

    • 4.4★ from 4,301 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    6900 Hill Park Dr, Lorton, VA 22079
    View profile for United Air Temp(703) 688-9494

  18. #18 McCarthy Services

    Based in Springfield, 10 mi away

    62/100CR Score

    Ranked #18 because of its Google rating and trade focus: 4.4★ from 3,547 Google reviews, listed on Google as “HVAC contractor”.

    • 4.4★ from 3,547 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    7435 Boston Blvd, Springfield, VA 22153
    View profile for McCarthy Services(703) 682-0528

  19. #19 M.E. Flow

    Based in Lorton, 10 mi away

    62/100CR Score

    Ranked #19 because of its Google rating and trade focus: 4.7★ from 1,169 Google reviews, listed on Google as “HVAC contractor”.

    • 4.7★ from 1,169 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    8580 Cinder Bed Rd #200, Lorton, VA 22079
    View profile for M.E. Flow(571) 350-3183

  23. #23 M.E. Flow

    Based in Lorton, 10 mi away

    62/100CR Score

    Ranked #23 because of its Google rating and trade focus: 4.8★ from 866 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 866 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    7200 Telegraph Square Dr, Lorton, VA 22079
    View profile for M.E. Flow(571) 470-7235

  24. #24 ACCURATE

    Based in Falls Church, 5 mi away

    61/100CR Score

    Ranked #24 because of its Google rating and trade focus: 4.9★ from 208 Google reviews, listed on Google as “Air conditioning contractor”.

    • 4.9★ from 208 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    5613 VA-7 #31, Falls Church, VA 22041
    View profile for ACCURATE(703) 625-0294

Top 50 of 1,044 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 Alexandria, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26United Air Temp614.9★ (313)8 mi
27GAC Services614.9★ (6,908)24 mi
28Michael Bonsby HVAC, Plumbing and Electrical614.8★ (2,138)17 mi
29Su' Coy Heating, AC & Duct Cleaning614.9★ (205)6 mi
30F.H. Furr Plumbing, Heating, Air Conditioning & Electrical614.7★ (5,985)21 mi
31Leonard Splaine Co.614.9★ (1,060)15 mi
32Nelson's HVAC, LLC614.9★ (627)13 mi
33United Air Temp614.7★ (1,754)15 mi
34GW Air Service614.9★ (270)8 mi
35Magnolia Plumbing, Heating & Cooling614.4★ (1,519)11 mi
36United Air Temp614.8★ (1,306)16 mi
37A-Plus Service Experts614.8★ (1,234)16 mi
38Belair Engineering and Service Company, Inc.614.9★ (1,421)18 mi
39Mission Comfort615.0★ (625)15 mi
40Perry Aire Services, Inc614.6★ (181)4 mi
41TRINITY PRO SERVICES614.7★ (257)7 mi
42Comfort Solutions604.8★ (298)10 mi
43Snell Home Services604.8★ (5,283)25 mi
44One Hour Air Conditioning & Heating® of Gaithersburg604.8★ (302)10 mi
45Cardinal Plumbing Heating & Air Inc604.9★ (2,958)24 mi
46Argent Heating Cooling and Plumbing604.7★ (392)11 mi
47ARS / Rescue Rooter604.5★ (5,934)22 mi
48AllTech Services, Inc604.9★ (2,807)25 mi
49AVS Heating and Air Conditioning Falls Church ( AC, Furnace and Appliance Repair)604.8★ (88)5 mi
50United Air Temp604.7★ (855)16 mi

How we ranked emergency HVAC contractors in Alexandria

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 Alexandria: questions

Which HVAC contractors in Alexandria are open 24/7?

25 on this list post 24/7 hours, including Michael & Son Services, John C. Flood, Krafft Service Corporation, AZA heating, cooling, plumbing & construction and United Air Temp.

Who is ranked #1 for emergency heating and cooling in Alexandria, VA?

Michael & Son Services is #1, with a CR Score of 68 out of 100 on emergency weights.

How are emergency HVAC contractors in Alexandria 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 Alexandria

  1. October 2026: CR Scores recalculated for 1,044 hvac contractors serving Alexandria.
  2. October 2026: 12 duplicate listings merged.

More emergency and heating and cooling pages