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Emergency HVAC Contractors in Leesburg, VA (2026)

Top 50 of 533 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 Leesburg: M.E. Flow, 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 Leesburg at a glance

Top emergency HVAC contractors in Leesburg at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1M.E. Flow664.8★ (3,718)Leesburg24/7
2F.H. Furr Plumbing, Heating, Air Conditioning & Electrical644.8★ (2,314)Ashburn, 7 mi away24/7
3Snell Home Services644.8★ (5,283)Sterling, 11 mi away24/7
4AllTech Services, Inc634.9★ (2,807)Sterling, 11 mi away24/7
5Cardinal Plumbing Heating & Air Inc634.9★ (2,958)Sterling, 12 mi away24/7
6Meade's Heating and Air635.0★ (710)Ashburn, 7 mi away24/7
7Meade's Heating and Air635.0★ (1,428)Sterling, 11 mi away24/7
8Michael & Son Services634.9★ (1,501)Sterling, 11 mi away24/7
9United Air Temp634.8★ (2,161)Sterling, 11 mi away24/7
10John Nugent & Sons624.8★ (1,701)Sterling, 11 mi away24/7

Call an emergency HVAC contractor in Leesburg 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 Leesburg, 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 533 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 Leesburg

    #1 M.E. Flow

    Based in Leesburg

    66/100CR Score

    Ranked #1 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

  3. #3 Snell Home Services

    Based in Sterling, 11 mi away

    64/100CR Score

    Ranked #3 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

  4. #4 AllTech Services, Inc

    Based in Sterling, 11 mi away

    63/100CR Score

    Ranked #4 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

  9. #9 United Air Temp

    Based in Sterling, 11 mi away

    63/100CR Score

    Ranked #9 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

  10. #10 John Nugent & Sons

    Based in Sterling, 11 mi away

    62/100CR Score

    Ranked #10 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

  11. #11 GAC Services

    Based in Gaithersburg, 21 mi away

    62/100CR Score

    Ranked #11 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

  17. #17 CroppMetcalfe

    Based in Fairfax, 24 mi away

    61/100CR Score

    Ranked #17 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

  18. #18 Premier Home Comfort

    Based in Ashburn, 10 mi away

    61/100CR Score

    Ranked #18 because of its Google rating and trade focus: 5.0★ from 226 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 226 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    22645 Upperville Heights Square, Ashburn, VA 20148
    View profile for Premier Home Comfort(703) 994-1191

  23. #23 Presidential, Inc.

    Based in Gaithersburg, 22 mi away

    60/100CR Score

    Ranked #23 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

Top 50 of 533 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 Leesburg, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Making Air Right604.9★ (361)14 mi
27Premier HVAC LLC605.0★ (230)14 mi
28Parker Pearce Service Experts604.8★ (1,700)22 mi
29OHA HVAC, Plumbing, Chimney & Fireplaces594.9★ (1,794)24 mi
30Michael & Son Services594.8★ (993)20 mi
31Markool Heating Cooling Plumbing594.9★ (547)19 mi
32R A Dobson Inc594.8★ (164)11 mi
33United Air Temp594.7★ (928)19 mi
34Larry & Sons Plumbing, Heating, Cooling, Drain & Electrical594.8★ (932)21 mi
35Techstar Mechanical Services llc.595.0★ (452)20 mi
36Parrish Services594.8★ (1,816)24 mi
37Dave's Heating & Air Conditioning594.8★ (138)11 mi
38Mast Services LLC595.0★ (118)13 mi
39Cyprus Air Heating, Cooling and Fireplaces594.7★ (1,402)23 mi
40VIP General HVAC Services595.0★ (25)5 mi
41Vito Services594.7★ (1,351)23 mi
42Cool Breeze Plumbing, Heating & A/C594.8★ (666)22 mi
43Conde Tech Services, LLC585.0★ (166)17 mi
44Nelson's HVAC, LLC584.9★ (627)23 mi
45Premier Hvac Mechanical Inc585.0★ (7)In Leesburg
46Sultan Comfort Solutions585.0★ (147)16 mi
47911Air-Care585.0★ (81)13 mi
48Metro Services HVAC584.9★ (298)20 mi
49Turner's Service Co. Heating & Air Conditioning584.8★ (1,037)25 mi
50Airtron Heating & Air Conditioning584.5★ (724)20 mi

How we ranked emergency HVAC contractors in Leesburg

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 Leesburg: questions

Which HVAC contractors in Leesburg are open 24/7?

25 on this list post 24/7 hours, including M.E. Flow, F.H. Furr Plumbing, Heating, Air Conditioning & Electrical, Snell Home Services, AllTech Services, Inc and Cardinal Plumbing Heating & Air Inc.

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

M.E. Flow is #1, with a CR Score of 66 out of 100 on emergency weights.

How are emergency HVAC contractors in Leesburg 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 Leesburg

  1. October 2026: CR Scores recalculated for 533 hvac contractors serving Leesburg.
  2. October 2026: 2 duplicate listings merged.

More emergency and heating and cooling pages