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ContractorsRanked

Best HVAC Contractors in Glenn Dale, MD (2026)

1,018 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Glenn Dale: United Air Temp, CR Score 91/100; 4.8★ from 1,306 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Grove Heating & Cooling, posts 24/7 hours; ranked #2 of 1,018.

  3. 14

    Most-reviewed: Michael & Son Services, 15,537 Google reviews at 4.7★, the most of 1,018 ranked; ranked #14.

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

1,018 Glenn Dale HVAC contractors are ranked here by CR Score, from 8 published factors. 298 are open 24/7, 659 open Saturdays and 469 open Sundays, based on posted hours. The median Google rating is 4.8★ across 1,018 rated businesses.

Top 10 HVAC contractors in Glenn Dale at a glance

Top 10 HVAC contractors in Glenn Dale at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1United Air Temp914.8★ (1,306)Greenbelt, 3 mi away24/7Overall
2Grove Heating & Cooling914.9★ (1,156)Crofton, 7 mi away24/7Emergencies
3Belair Engineering and Service Company, Inc.914.9★ (1,421)Greater Upper Marlboro, 9 mi away24/7—
4Michael & Son Services904.8★ (8,326)Hyattsville, 4 mi awaySat · Sun—
5Len The Plumber Heating & Air, LLC904.6★ (8,136)Silver Spring, 11 mi away24/7—
6Staton Heating, Cooling & Plumbing904.9★ (2,904)Annapolis, 16 mi away24/7—
7GAC Services894.9★ (6,908)Gaithersburg, 22 mi away24/7—
8NARFIX HEATING AND AIR CONDITIONING LLC895.0★ (293)Silver Spring, 9 mi away24/7—
9C&V Home Services Inc894.9★ (114)Lanham, 2 mi away24/7—
10Environmental Systems Associates894.9★ (658)Columbia, 13 mi away24/7—

The 1,018 best HVAC contractors in Glenn Dale, 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 Glenn Dale

    #1 United Air Temp

    Based in Greenbelt, 3 mi away

    91/100CR Score

    Ranked #1 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

  7. #7 GAC Services

    Based in Gaithersburg, 22 mi away

    89/100CR Score

    Ranked #7 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

  11. #11 United Air Temp

    Based in Fort Washington, 14 mi away

    89/100CR Score

    Ranked #11 because of its Google rating and availability: 4.8★ from 1,775 Google reviews, open 24/7.

    • 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

  17. #17 CroppMetcalfe

    Based in Fairfax, 24 mi away

    88/100CR Score

    Ranked #17 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

  18. #18 Bethany Air

    Based in Edgewater, 15 mi away

    88/100CR Score

    Ranked #18 because of its Google rating and availability: 4.8★ from 1,251 Google reviews, open 24/7.

    • 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

  22. #22 John C. Flood

    Based in Alexandria, 23 mi away

    88/100CR Score

    Ranked #22 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 1,018 ranked HVAC contractors here; the rest are on their profiles.

HVAC contractors in Glenn Dale, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Fixed Right & Guaranteed Super Techs, LLC875.0★ (1,032)23 mi
27Horizon Services - Air Conditioning, Heating, Plumbing, & Electrical874.8★ (4,514)24 mi
28David E White's Plumbing, Heating & Repair Company875.0★ (238)14 mi
29Presidential, Inc.874.9★ (1,701)22 mi
30ARS / Rescue Rooter874.4★ (3,510)9 mi
31EzGreen Air duct And Dryer Vent Cleaning874.9★ (130)8 mi
32OHA HVAC, Plumbing, Chimney & Fireplaces874.9★ (1,794)23 mi
33Caffi Services874.9★ (508)17 mi
34Su' Coy Heating, AC & Duct Cleaning874.9★ (205)13 mi
35Sweet Spot Home Services875.0★ (379)7 mi
36Michael Bonsby HVAC, Plumbing & Electrical874.8★ (2,083)22 mi
37Complete Climate Services LLC875.0★ (786)24 mi
38Thomas E Clark Inc874.8★ (299)13 mi
39Tim Whistler Plumbing, Gas Fitting, HVAC, and Electrical874.8★ (291)12 mi
40Beltway Air Conditioning, Heating & Plumbing874.9★ (2,167)14 mi
41Parker Pearce Service Experts874.8★ (1,700)22 mi
42Ambient LLC864.8★ (336)14 mi
43AG Services – Electrical, Air Conditioning, Heating & Plumbing864.9★ (440)19 mi
44Cyprus Air Heating, Cooling and Fireplaces864.7★ (1,402)18 mi
45JJ HEATING & COOLING COMPANY864.8★ (110)8 mi
46GW Air Service864.9★ (270)17 mi
47Len The Plumber Heating & Air, LLC864.8★ (1,053)6 mi
48United Air Temp864.8★ (171)11 mi
49JV heating and air services864.8★ (114)9 mi
50United Air Temp864.8★ (1,318)23 mi

Also serving Glenn Dale

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 Glenn Dale
BusinessGoogle ratingDistance
A-Gas Rapid Recovery - Baltimore5.0★ (2)7 mi
Bill Myers Inc4.5★ (2)9 mi
Conrod's Plumbing Heating and A/C5.0★ (2)11 mi
Cora AC5.0★ (2)12 mi
Davis Plumbing & Heating Inc5.0★ (2)2 mi
DMV Mechanical3.0★ (2)11 mi
Energy Systems Inc3.0★ (2)10 mi
Ferguson3.0★ (2)9 mi
Home Services at The Home Depot3.0★ (2)7 mi
Horizon Mechanical Services LLC5.0★ (2)11 mi
JC & JC HVAC4.7★ (503)12 mi
JDL HVAC & Plumbing Services4.8★ (678)7 mi
Meleney Equipment Inc5.0★ (2)10 mi
One Call Services5.0★ (2)3 mi
R And R Climate Control Inc5.0★ (2)8 mi
R D Springer Plumbing & Heating5.0★ (2)8 mi
S&W Controls, Inc.5.0★ (2)11 mi
T & T Plumbing And Heating5.0★ (2)4 mi
United Service Company5.0★ (2)8 mi
Vito Services4.7★ (1,351)19 mi

How much do HVAC contractors cost in Glenn Dale?

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

How much do HVAC contractors cost in Glenn Dale?
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 Glenn Dale HVAC contractors

We scored 1,018 Glenn Dale 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 Glenn Dale 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 Glenn Dale: frequently asked questions

Who is the best HVAC contractor in Glenn Dale?

By CR Score, the highest-ranked HVAC contractor in Glenn Dale, MD is United Air Temp with a CR Score of 91/100. It has 4.8★ from 1,306 Google reviews. It is open 24/7. Grove Heating & Cooling (#2) and Belair Engineering and Service Company, Inc. (#3) follow. We ranked 1,018 HVAC contractors on 8 factors, last updated October 22, 2026.

How many HVAC contractors are there in Glenn Dale?

ContractorsRanked ranks 1,018 HVAC contractors serving Glenn Dale, MD. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.

Which HVAC contractors in Glenn Dale are open 24/7?

298 ranked HVAC contractors in Glenn Dale post 24/7 hours. The highest-ranked are United Air Temp (#1), Grove Heating & Cooling (#2) and Belair Engineering and Service Company, Inc. (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which HVAC contractors in Glenn Dale work on weekends?

659 of 1,018 ranked HVAC contractors post Saturday hours and 469 post Sunday hours. The highest-ranked open Saturdays are United Air Temp (#1), Grove Heating & Cooling (#2) and Belair Engineering and Service Company, Inc. (#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 Glenn Dale?

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 Glenn Dale. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Glenn Dale HVAC contractors have?

The median Google rating among 1,018 rated HVAC contractors in Glenn Dale is 4.8★, with a median of 20 reviews. Michael & Son Services has the most, 15,537 reviews, and ranks #14. 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 Glenn Dale?

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 Glenn Dale

  1. October 2026: CR Scores recalculated for 1,018 hvac contractors serving Glenn Dale.
  2. October 2026: 6 duplicate listings merged.

More HVAC contractors and Glenn Dale pages

Other trades in Glenn Dale