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ContractorsRanked

Best HVAC Contractors in Rossmoor, MD (2026)

1,132 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Rossmoor: GAC Services, CR Score 94/100; 4.9★ from 6,908 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): F.H. Furr Plumbing, Heating, Air Conditioning & Electrical, posts 24/7 hours; ranked #2 of 1,132.

  3. 15

    Most-reviewed: Michael & Son Services, 15,537 Google reviews at 4.7★, the most of 1,132 ranked; ranked #15.

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

1,132 Rossmoor HVAC contractors are ranked here by CR Score, from 8 published factors. 331 are open 24/7, 749 open Saturdays and 515 open Sundays, based on posted hours. The median Google rating is 4.8★ across 1,132 rated businesses.

Top 10 HVAC contractors in Rossmoor at a glance

Top 10 HVAC contractors in Rossmoor at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1GAC Services944.9★ (6,908)Gaithersburg, 6 mi away24/7Overall
2F.H. Furr Plumbing, Heating, Air Conditioning & Electrical924.7★ (5,985)Rockville, 4 mi away24/7Emergencies
3Presidential, Inc.914.9★ (1,701)Gaithersburg, 7 mi away24/7—
4Len The Plumber Heating & Air, LLC914.6★ (8,136)Silver Spring, 7 mi away24/7—
5Michael Bonsby HVAC, Plumbing & Electrical914.8★ (2,083)Gaithersburg, 7 mi away24/7—
6Parker Pearce Service Experts914.8★ (1,700)Gaithersburg, 6 mi away24/7—
7Cyprus Air Heating, Cooling and Fireplaces904.7★ (1,402)Rockville, 4 mi away24/7—
8CroppMetcalfe904.8★ (7,638)Fairfax, 18 mi away24/7—
9NARFIX HEATING AND AIR CONDITIONING LLC895.0★ (293)Silver Spring, 8 mi away24/7—
10Cool Breeze Plumbing, Heating & A/C894.8★ (666)Gaithersburg, 7 mi away24/7—

The 1,132 best HVAC contractors in Rossmoor, 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 Rossmoor

    #1 GAC Services

    Based in Gaithersburg, 6 mi away

    94/100CR 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

  8. #8 CroppMetcalfe

    Based in Fairfax, 18 mi away

    90/100CR Score

    Ranked #8 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

  17. #17 United Air Temp

    Based in Greenbelt, 13 mi away

    89/100CR Score

    Ranked #17 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

  22. #22 John C. Flood

    Based in Alexandria, 22 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 1,132 ranked HVAC contractors here; the rest are on their profiles.

HVAC contractors in Rossmoor, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Michael & Son Services884.9★ (1,501)20 mi
27Krafft Service Corporation884.9★ (1,631)21 mi
28Making Air Right884.9★ (361)12 mi
29Horizon Services - Air Conditioning, Heating, Plumbing, & Electrical884.8★ (4,514)23 mi
30P&Y Heating and Cooling875.0★ (85)7 mi
31EzGreen Air duct And Dryer Vent Cleaning874.9★ (130)8 mi
32John Nugent & Sons874.8★ (1,701)19 mi
33United Air Temp874.8★ (2,161)20 mi
34F.H. Furr Plumbing, Heating, Air Conditioning & Electrical874.8★ (2,314)21 mi
35Lebrun's Services875.0★ (31)1 mi
36Anthony & Son Indoor Air Quality, LLC874.8★ (838)4 mi
37Cardinal Plumbing Heating & Air Inc874.9★ (745)19 mi
38Grove Heating & Cooling874.9★ (1,156)22 mi
39Meade's Heating and Air875.0★ (710)23 mi
40Nelson's HVAC, LLC874.9★ (627)19 mi
41Shemtov Systems Heating & Air Conditioning874.9★ (57)4 mi
42United Air Temp874.8★ (1,775)21 mi
43Michael & Son Services874.8★ (8,326)16 mi
44Belair Engineering and Service Company, Inc.874.9★ (1,421)24 mi
45C.D. Shanahan's HVAC, Plumbing, Electrical & Remodeling LLC874.9★ (966)22 mi
46Mario Bro, LLC875.0★ (53)7 mi
47One Hour Air Conditioning & Heating® of Gaithersburg874.8★ (302)13 mi
48B&B Air Conditioning & Heating Service865.0★ (357)20 mi
49AVS Heating and Air Conditioning Bethesda - Appliance, Heating, AC Install, Repair Maintenance Service864.8★ (104)8 mi
50Caffi Services864.9★ (508)20 mi

Also serving Rossmoor

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 Rossmoor
BusinessGoogle ratingDistance
A Blessing Mechanical, LLC5.0★ (2)9 mi
A-Gas Rapid Recovery - Baltimore5.0★ (2)13 mi
Bill Myers Inc4.5★ (2)9 mi
Conrod's Plumbing Heating and A/C5.0★ (2)8 mi
Davis Plumbing & Heating Inc5.0★ (2)8 mi
DMV Mechanical3.0★ (2)8 mi
Energy Systems Inc3.0★ (2)6 mi
Home Services at The Home Depot3.5★ (2)12 mi
Home Services at The Home Depot3.0★ (2)12 mi
JC & JC HVAC4.7★ (503)5 mi
JDL HVAC & Plumbing Services4.8★ (678)12 mi
Kensington Cooling & Heating5.0★ (2)5 mi
Owens & Johnsons Heating and Cooling3.0★ (2)1 mi
P W Scholl Plumbing & Heating Inc5.0★ (2)13 mi
R And R Climate Control Inc5.0★ (2)9 mi
R D Springer Plumbing & Heating5.0★ (2)8 mi
Rockville Heating & Air Services5.0★ (2)6 mi
S.L. Johnson Plumbing & Heating3.0★ (2)4 mi
T & T Plumbing And Heating5.0★ (2)13 mi
Vito Services4.7★ (1,351)4 mi

How much do HVAC contractors cost in Rossmoor?

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

How much do HVAC contractors cost in Rossmoor?
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 Rossmoor HVAC contractors

We scored 1,132 Rossmoor 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 Rossmoor 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 Rossmoor: frequently asked questions

Who is the best HVAC contractor in Rossmoor?

By CR Score, the highest-ranked HVAC contractor in Rossmoor, MD is GAC Services with a CR Score of 94/100. It has 4.9★ from 6,908 Google reviews. It is open 24/7. F.H. Furr Plumbing, Heating, Air Conditioning & Electrical (#2) and Presidential, Inc. (#3) follow. We ranked 1,132 HVAC contractors on 8 factors, last updated October 22, 2026.

How many HVAC contractors are there in Rossmoor?

ContractorsRanked ranks 1,132 HVAC contractors serving Rossmoor, MD. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.

Which HVAC contractors in Rossmoor are open 24/7?

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

Which HVAC contractors in Rossmoor work on weekends?

749 of 1,132 ranked HVAC contractors post Saturday hours and 515 post Sunday hours. The highest-ranked open Saturdays are GAC Services (#1), F.H. Furr Plumbing, Heating, Air Conditioning & Electrical (#2) and Presidential, 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 Rossmoor?

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

What Google rating do Rossmoor HVAC contractors have?

The median Google rating among 1,132 rated HVAC contractors in Rossmoor is 4.8★, with a median of 22 reviews. Michael & Son Services has the most, 15,537 reviews, and ranks #15. 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 Rossmoor?

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 Rossmoor

  1. October 2026: CR Scores recalculated for 1,132 hvac contractors serving Rossmoor.
  2. October 2026: 11 duplicate listings merged.

More HVAC contractors and Rossmoor pages

Other trades in Rossmoor