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ContractorsRanked

Best HVAC Contractors in Wheaton, MD (2026)

1,116 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Wheaton: GAC Services, CR Score 93/100; 4.9★ from 6,908 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Len The Plumber Heating & Air, LLC, posts 24/7 hours; ranked #2 of 1,116.

  3. 8

    Most-reviewed: Michael & Son Services, 15,537 Google reviews at 4.7★, the most of 1,116 ranked; ranked #8.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

1,116 Wheaton HVAC contractors are ranked here by CR Score, from 8 published factors. 344 are open 24/7, 751 open Saturdays and 512 open Sundays, based on posted hours. The median Google rating is 4.9★ across 1,116 rated businesses.

Top 10 HVAC contractors in Wheaton at a glance

Top 10 HVAC contractors in Wheaton at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1GAC Services934.9★ (6,908)Gaithersburg, 10 mi away24/7Overall
2Len The Plumber Heating & Air, LLC924.6★ (8,136)Silver Spring, 3 mi away24/7Emergencies
3F.H. Furr Plumbing, Heating, Air Conditioning & Electrical924.7★ (5,985)Rockville, 6 mi away24/7—
4CroppMetcalfe914.8★ (7,638)Fairfax, 15 mi away24/7—
5Presidential, Inc.904.9★ (1,701)Gaithersburg, 11 mi away24/7—
6NARFIX HEATING AND AIR CONDITIONING LLC905.0★ (293)Silver Spring, 5 mi away24/7—
7Cyprus Air Heating, Cooling and Fireplaces904.7★ (1,402)Rockville, 5 mi away24/7—
8Michael & Son Services904.7★ (15,537)Alexandria, 18 mi away24/7Most reviews
9Michael Bonsby HVAC, Plumbing & Electrical904.8★ (2,083)Gaithersburg, 11 mi away24/7—
10Parker Pearce Service Experts904.8★ (1,700)Gaithersburg, 10 mi away24/7—

The 1,116 best HVAC contractors in Wheaton, ranked

Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.

Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  1. Ranked #1 in Wheaton

    #1 GAC Services

    Based in Gaithersburg, 10 mi away

    93/100CR Score

    Ranked #1 because of its Google rating and availability: 4.9★ from 6,908 Google reviews, open 24/7.

    • 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

  4. #4 CroppMetcalfe

    Based in Fairfax, 15 mi away

    91/100CR Score

    Ranked #4 because of its Google rating and availability: 4.8★ from 7,638 Google reviews, open 24/7.

    • 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

  8. #8 Michael & Son Services

    Based in Alexandria, 18 mi away

    90/100CR Score

    Ranked #8 because of its Google rating and review volume: 4.7★ from 15,537 Google reviews, the most Google reviews on this list (15,537).

    • 4.7★ from 15,537 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    5740 General Washington Dr, Alexandria, VA 22312
    View profile for Michael & Son Services(800) 948-6453

  15. #15 United Air Temp

    Based in Greenbelt, 10 mi away

    89/100CR Score

    Ranked #15 because of its Google rating and availability: 4.8★ from 1,306 Google reviews, open 24/7.

    • 4.8★ from 1,306 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    7255 Hanover Pkwy Ste A, Greenbelt, MD 20770
    View profile for United Air Temp(240) 713-3314

  17. #17 John C. Flood

    Based in Alexandria, 18 mi away

    89/100CR Score

    Ranked #17 because of its Google rating and availability: 4.8★ from 4,976 Google reviews, open 24/7.

    • 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

HVAC contractors ranked #26 to #50

#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 1,116 ranked HVAC contractors here; the rest are on their profiles.

HVAC contractors in Wheaton, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26United Air Temp884.8★ (1,775)17 mi
27Environmental Systems Associates884.9★ (658)15 mi
28Metro Services HVAC884.9★ (298)10 mi
29Michael & Son Services884.9★ (1,501)20 mi
30Michael & Son Services884.8★ (8,326)13 mi
31Nelson's HVAC, LLC884.9★ (627)16 mi
32One Hour Air Conditioning & Heating® of Gaithersburg884.8★ (302)9 mi
33Belair Engineering and Service Company, Inc.884.9★ (1,421)20 mi
34C.D. Shanahan's HVAC, Plumbing, Electrical & Remodeling LLC884.9★ (966)18 mi
35Caffi Services884.9★ (508)15 mi
36Grove Heating & Cooling884.9★ (1,156)20 mi
37Shemtov Systems Heating & Air Conditioning884.9★ (57)2 mi
38Cycle Heating and Cooling, LLC874.9★ (77)4 mi
39EzGreen Air Duct And Dryer Vent Cleaning874.9★ (90)6 mi
40United Air Temp874.8★ (2,161)20 mi
41AVS Heating and Air Conditioning Bethesda - Appliance, Heating, AC Install, Repair Maintenance Service874.8★ (104)4 mi
42Cardinal Plumbing Heating & Air Inc874.9★ (745)18 mi
43John Nugent & Sons874.8★ (1,701)19 mi
44Making Air Right874.9★ (361)15 mi
45Su' Coy Heating, AC & Duct Cleaning874.9★ (205)12 mi
46United Air Temp874.8★ (1,318)18 mi
47AG Services – Electrical, Air Conditioning, Heating & Plumbing874.9★ (440)16 mi
48F.H. Furr Plumbing, Heating, Air Conditioning & Electrical874.8★ (2,314)22 mi
49Service Force Plumbing874.9★ (374)3 mi
50Magnolia Plumbing, Heating & Cooling874.4★ (1,519)7 mi

Also serving Wheaton

20 more HVAC contractors within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.

Unranked HVAC contractors serving Wheaton
BusinessGoogle ratingDistance
Barivo HVAC Repair Washington5.0★ (2)9 mi
Conrod's Plumbing Heating and A/C5.0★ (2)3 mi
Coreno HVAC Repair Washington5.0★ (2)10 mi
DMV Mechanical3.0★ (2)3 mi
Energy Systems Inc3.0★ (2)4 mi
F.H. Furr Plumbing, Heating, Air Conditioning & Electrical4.7★ (4,469)23 mi
Helino HVAC Repair Washington5.0★ (2)9 mi
Heravo HVAC Repair Washington5.0★ (2)9 mi
JC & JC HVAC4.7★ (503)6 mi
JDL HVAC & Plumbing Services4.8★ (678)11 mi
Owens & Johnsons Heating and Cooling3.0★ (2)4 mi
Pavilo HVAC Repair Washington5.0★ (2)9 mi
R And R Climate Control Inc5.0★ (2)6 mi
R D Springer Plumbing & Heating5.0★ (2)5 mi
Rockville Heating & Air Services5.0★ (2)9 mi
S.L. Johnson Plumbing & Heating3.0★ (2)6 mi
Teravo HVAC Repair Washington5.0★ (2)9 mi
Vito Services4.7★ (1,351)6 mi
Xavino HVAC Repair Washington5.0★ (2)10 mi
Zelavo HVAC Repair Washington5.0★ (2)10 mi

How much do HVAC contractors cost in Wheaton?

National price ranges in USD, not adjusted for Wheaton. Each row names its basis and the month we checked it.

How much do HVAC contractors cost in Wheaton?
JobLowTypicalHighBasisChecked
AC replacement$3,887$5,978$8,073Per system, installed (unit plus labor); typical range of customer-reported jobs. US national rangeOctober 2026
Furnace replacement$2,823$4,814$6,896Per system, installed; typical range of customer-reported jobs. US national rangeOctober 2026

How to check an HVAC contractor's license in Maryland

In Maryland, Maryland State Board of Heating, Ventilation, Air-Conditioning and Refrigeration Contractors licenses Heating, ventilation, air conditioning and refrigeration work.

  1. Check that the status is active and the name matches the contract or truck.
  2. Ask for proof of insurance before work starts.

No chip usually means we have not matched a state record yet. Check the lookup yourself before you hire.

Guide checked October 2026. How we verify licenses

When to hire an HVAC contractor in Maryland

HVAC demand peaks in summer for cooling and in winter for heating. Spring and fall are the easiest times to book maintenance or a replacement.

How we ranked Wheaton HVAC contractors

We scored 1,116 Wheaton HVAC contractors on 8 factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. Unknown factors are left out of the score, not counted as zero. Scores last refreshed October 22, 2026.

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 fromIn Wheaton data
Reputation35%Bayesian-adjusted Google star ratingMeasured
Credentials15%Active state license 0.6, bond 0.2, workers’ comp 0.2Not yet collected
Review volume10%log10(reviews + 1) against the list maximumMeasured
Recency10%Share of reviews from the last 12 monthsNot yet collected
Availability10%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%Google main category 1.0, business name 0.7, additional category 0.5Measured
Proximity5%1.0 when based in the city, falling to 0 at the trade’s radiusMeasured
Completeness5%Website, photos, description, hours, claimed profile (0.2 each)Measured

HVAC contractors in Wheaton: frequently asked questions

Who is the best HVAC contractor in Wheaton?

By CR Score, the highest-ranked HVAC contractor in Wheaton, MD is GAC Services with a CR Score of 93/100. It has 4.9★ from 6,908 Google reviews. It is open 24/7. Len The Plumber Heating & Air, LLC (#2) and F.H. Furr Plumbing, Heating, Air Conditioning & Electrical (#3) follow. We ranked 1,116 HVAC contractors on 8 factors, last updated October 22, 2026.

How many HVAC contractors are there in Wheaton?

ContractorsRanked ranks 1,116 HVAC contractors serving Wheaton, MD. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.

Which HVAC contractors in Wheaton are open 24/7?

344 ranked HVAC contractors in Wheaton post 24/7 hours. The highest-ranked are GAC Services (#1), Len The Plumber Heating & Air, LLC (#2) and F.H. Furr Plumbing, Heating, Air Conditioning & Electrical (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which HVAC contractors in Wheaton work on weekends?

751 of 1,116 ranked HVAC contractors post Saturday hours and 512 post Sunday hours. The highest-ranked open Saturdays are GAC Services (#1), Len The Plumber Heating & Air, LLC (#2) and F.H. Furr Plumbing, Heating, Air Conditioning & Electrical (#3). Posted hours are office hours; crews may book weekend jobs separately.

How do I check an HVAC contractor's license in Maryland?

In Maryland, Maryland State Board of Heating, Ventilation, Air-Conditioning and Refrigeration Contractors handles licensing and covers Heating, ventilation, air conditioning and refrigeration work.

How much does ac replacement cost in Wheaton?

AC replacement typically costs $3,887 to $8,073, with $5,978 typical (Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range). This is a national range, not adjusted for Wheaton. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Wheaton HVAC contractors have?

The median Google rating among 1,116 rated HVAC contractors in Wheaton is 4.9★, with a median of 24 reviews. Michael & Son Services has the most, 15,537 reviews, and ranks #8. We adjust ratings for review count, so a few five-star reviews cannot top the list.

When is the best time to hire an HVAC contractor in Wheaton?

HVAC demand peaks in summer for cooling and in winter for heating. Spring and fall are the easiest times to book maintenance or a replacement.

Update log for Wheaton

  1. October 2026: CR Scores recalculated for 1,116 hvac contractors serving Wheaton.
  2. October 2026: 11 duplicate listings merged.

More HVAC contractors and Wheaton pages

Other trades in Wheaton