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Best HVAC Contractors in La Plata, MD (2026)

420 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in La Plata: Mission Comfort, CR Score 91/100; 5.0★ from 625 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): A-Plus Service Experts, posts 24/7 hours; ranked #2 of 420.

  3. 4

    Most-reviewed: Michael & Son Services, 15,537 Google reviews at 4.7★, the most of 420 ranked; ranked #4.

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

420 La Plata HVAC contractors are ranked here by CR Score, from 8 published factors. 138 are open 24/7, 290 open Saturdays and 195 open Sundays, based on posted hours. The median Google rating is 4.9★ across 420 rated businesses.

Top 10 HVAC contractors in La Plata at a glance

Top 10 HVAC contractors in La Plata at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Mission Comfort915.0★ (625)Waldorf, 7 mi away24/7Overall
2A-Plus Service Experts914.8★ (1,234)St. Charles, 5 mi away24/7Emergencies
3Olympic Aire Services Inc904.9★ (426)Accokeek, 5 mi away24/7—
4Michael & Son Services894.7★ (15,537)Alexandria, 21 mi away24/7Most reviews
5United Air Temp894.7★ (855)Waldorf, 7 mi away24/7—
6John C. Flood884.8★ (4,976)Alexandria, 21 mi away24/7—
7Michael Bonsby HVAC, Plumbing and Electrical884.8★ (2,138)Dale City, 17 mi away24/7—
8F.H. Furr Plumbing, Heating, Air Conditioning & Electrical884.7★ (4,469)Lorton, 18 mi away24/7—
9Leonard Splaine Co.884.9★ (1,060)Dale City, 18 mi away24/7—
10Fixed Right & Guaranteed Super Techs, LLC885.0★ (1,032)Rosaryville, 21 mi away24/7—

The 420 best HVAC contractors in La Plata, 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 La Plata

    #1 Mission Comfort

    Based in Waldorf, 7 mi away

    91/100CR Score

    Ranked #1 because of its Google rating and availability: 5.0★ from 625 Google reviews, open 24/7.

    • 5.0★ from 625 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    11822 Pika Dr, Waldorf, MD 20602
    View profile for Mission Comfort(301) 450-5913

  4. #4 Michael & Son Services

    Based in Alexandria, 21 mi away

    89/100CR Score

    Ranked #4 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

  5. #5 United Air Temp

    Based in Waldorf, 7 mi away

    89/100CR Score

    Ranked #5 because of its Google rating and availability: 4.7★ from 855 Google reviews, open 24/7.

    • 4.7★ from 855 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    605 Post Office Rd Ste 204, Waldorf, MD 20602
    View profile for United Air Temp(240) 359-9217

  6. #6 John C. Flood

    Based in Alexandria, 21 mi away

    88/100CR Score

    Ranked #6 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

  14. #14 United Air Temp

    Based in Fort Washington, 20 mi away

    87/100CR Score

    Ranked #14 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

  15. #15 SMO Energy

    Based in La Plata

    87/100CR Score

    Ranked #15 because of its Google rating and availability: 4.3★ from 945 Google reviews, open 24/7.

    • 4.3★ from 945 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    109 N Maple Ave, La Plata, MD 20646
    View profile for SMO Energy(888) 222-3720

  16. #16 HPC Services

    Based in Waldorf, 7 mi away

    87/100CR Score

    Ranked #16 because of its Google rating and availability: 4.9★ from 92 Google reviews, open 24/7.

    • 4.9★ from 92 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    14 Irongate Dr Suite F, Waldorf, MD 20602
    View profile for HPC Services(240) 435-7472

  19. #19 M.E. Flow

    Based in Lorton, 18 mi away

    87/100CR Score

    Ranked #19 because of its Google rating and availability: 4.8★ from 866 Google reviews, open 24/7.

    • 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

  20. #20 United Air Temp

    Based in Alexandria, 20 mi away

    87/100CR Score

    Ranked #20 because of its Google rating and availability: 4.8★ from 1,318 Google reviews, open 24/7.

    • 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

  22. #22 United Air Temp

    Based in Dale City, 19 mi away

    86/100CR Score

    Ranked #22 because of its Google rating and availability: 4.7★ from 1,754 Google reviews, open 24/7.

    • 4.7★ from 1,754 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    12662 Lake Ridge Dr STE B, Woodbridge, VA 22192
    View profile for United Air Temp(866) 739-5179

  24. #24 Su'Coy

    Based in St. Charles, 6 mi away

    86/100CR Score

    Ranked #24 because of its Google rating and availability: 4.9★ from 58 Google reviews, open 24/7.

    • 4.9★ from 58 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for Su'Coy(301) 343-3228

  25. #25 M.E. Flow

    Based in Lorton, 18 mi away

    86/100CR Score

    Ranked #25 because of its Google rating and availability: 4.7★ from 1,169 Google reviews, open 24/7.

    • 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

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 420 ranked HVAC contractors here; the rest are on their profiles.

HVAC contractors in La Plata, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26GW Air Service864.9★ (270)16 mi
27Caffi Services864.9★ (508)20 mi
28AG Services – Electrical, Air Conditioning, Heating & Plumbing864.9★ (440)20 mi
29DR HVAC Inc864.9★ (348)19 mi
30A Action Home Services864.9★ (326)19 mi
31Alex Hvac Service LLC854.9★ (310)21 mi
32Comfort Solutions854.8★ (298)17 mi
33Trust Heating And AC Services854.9★ (348)22 mi
34NFS Heating & A/C Services LLC854.9★ (67)12 mi
35United Air Temp854.4★ (4,301)18 mi
36United Air Temp854.9★ (313)22 mi
37Associates Property Management, Inc.854.9★ (17)4 mi
38McCarthy Services854.4★ (3,547)19 mi
39Hynes HVAC LLC854.9★ (391)25 mi
40Lawson Air Conditioning Repair855.0★ (36)12 mi
41Len the Plumber Heating & Air, LLC844.7★ (6,899)20 mi
42HVAC & Plumbing Unlimited844.9★ (788)18 mi
43Cardinal Plumbing Heating & Air Inc844.9★ (1,720)20 mi
44KPK Enterprise Heating and Cooling845.0★ (320)16 mi
45ACCURATE844.9★ (208)24 mi
46Cyprus Air Heating, Cooling and Fireplaces844.3★ (2,189)17 mi
47Su' Coy Heating, AC & Duct Cleaning844.9★ (205)24 mi
48All Season Aire844.7★ (11)5 mi
49McCarthy Services844.8★ (335)25 mi
50Multi MG Services844.8★ (64)16 mi

Also serving La Plata

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 La Plata
BusinessGoogle ratingDistance
(HVACR) Lord refrigeration3.0★ (2)19 mi
Ace HVAC & Airduct cleaning Conditioning4.5★ (2)13 mi
Airtron Heating & Air Conditioning2.5★ (2)14 mi
AY Comfort, Inc.5.0★ (2)19 mi
Back 2 Basic HVAC LLC5.0★ (2)17 mi
BBG Contracting4.5★ (2)14 mi
Construction Trade Services3.0★ (2)19 mi
DKS Enterprise LLC5.0★ (2)15 mi
DM Select Services5.0★ (2)16 mi
JM INSULATION LLC5.0★ (2)14 mi
K 2 Ventilations5.0★ (2)5 mi
Lighthouse Heating & Air Conditioning, LLCIn La Plata
Logan Mechanical LLC4.7★ (155)18 mi
Preferred Mechanical Solution5.0★ (1)In La Plata
R&R HVAC Solutions5.0★ (220)22 mi
Sears Heating and Air Conditioning3.0★ (2)7 mi
Sears Window Replacement2.5★ (2)21 mi
Tom s ductworkIn La Plata
TRINITY PRO SERVICES4.7★ (257)21 mi
Ultra Painting HVAC Pros5.0★ (2)20 mi

How much do HVAC contractors cost in La Plata?

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

How much do HVAC contractors cost in La Plata?
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 La Plata HVAC contractors

We scored 420 La Plata 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 La Plata 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 La Plata: frequently asked questions

Who is the best HVAC contractor in La Plata?

By CR Score, the highest-ranked HVAC contractor in La Plata, MD is Mission Comfort with a CR Score of 91/100. It has 5.0★ from 625 Google reviews. It is open 24/7. A-Plus Service Experts (#2) and Olympic Aire Services Inc (#3) follow. We ranked 420 HVAC contractors on 8 factors, last updated October 22, 2026.

How many HVAC contractors are there in La Plata?

ContractorsRanked ranks 420 HVAC contractors serving La Plata, MD. 2 of them are based in La Plata; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.

Which HVAC contractors in La Plata are open 24/7?

138 ranked HVAC contractors in La Plata post 24/7 hours. The highest-ranked are Mission Comfort (#1), A-Plus Service Experts (#2) and Olympic Aire Services Inc (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which HVAC contractors in La Plata work on weekends?

290 of 420 ranked HVAC contractors post Saturday hours and 195 post Sunday hours. The highest-ranked open Saturdays are Mission Comfort (#1), A-Plus Service Experts (#2) and Olympic Aire Services 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 La Plata?

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

What Google rating do La Plata HVAC contractors have?

The median Google rating among 420 rated HVAC contractors in La Plata is 4.9★, with a median of 19 reviews. Michael & Son Services has the most, 15,537 reviews, and ranks #4. 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 La Plata?

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 La Plata

  1. October 2026: CR Scores recalculated for 420 hvac contractors serving La Plata.
  2. October 2026: 4 duplicate listings merged.

More HVAC contractors and La Plata pages

Other trades in La Plata