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ContractorsRanked

Best HVAC Contractors in Arnold, MD (2026)

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

The short answer

  1. 1

    Best overall in Arnold: Staton Heating, Cooling & Plumbing, CR Score 93/100; 4.9★ from 2,904 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Barstow & Sons Heating and Cooling, posts 24/7 hours; ranked #2 of 609.

  3. 26

    Most-reviewed: Len The Plumber Heating & Air, LLC, 15,911 Google reviews at 4.7★, the most of 609 ranked; ranked #26.

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

609 Arnold HVAC contractors are ranked here by CR Score, from 8 published factors. 177 are open 24/7, 374 open Saturdays and 272 open Sundays, based on posted hours. The median Google rating is 4.8★ across 609 rated businesses.

Top 10 HVAC contractors in Arnold at a glance

Top 10 HVAC contractors in Arnold at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Staton Heating, Cooling & Plumbing934.9★ (2,904)Annapolis, 4 mi away24/7Overall
2Barstow & Sons Heating and Cooling924.9★ (1,127)Annapolis, 4 mi away24/7Emergencies
3Boothe's Heating, Air, Plumbing, Drains & Electrical904.9★ (1,461)Dundalk, 10 mi away24/7—
4One Hour Air Conditioning & Heating® of Annapolis904.8★ (367)Arnold24/7—
5David E White's Plumbing, Heating & Repair Company905.0★ (238)Annapolis, 4 mi away24/7—
6Bethany Air904.8★ (1,251)Edgewater, 8 mi away24/7—
7Grove Heating & Cooling904.9★ (1,156)Crofton, 11 mi away24/7—
8All Good Home Inc895.0★ (98)Severna Park, 3 mi away24/7—
9Belair Engineering and Service Company, Inc.894.9★ (1,421)Greater Upper Marlboro, 16 mi away24/7—
10Michael & Son Services894.7★ (8,039)Baltimore, 19 mi away24/7—

The 609 best HVAC contractors in Arnold, 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.

  6. #6 Bethany Air

    Based in Edgewater, 8 mi away

    90/100CR Score

    Ranked #6 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

  11. #11 United Air Temp

    Based in Annapolis, 4 mi away

    89/100CR Score

    Ranked #11 because of its Google rating and availability: 4.8★ from 253 Google reviews, open 24/7.

    • 4.8★ from 253 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2553 Housley Rd, Annapolis, MD 21401
    View profile for United Air Temp(410) 705-6043

  12. #12 Shoreline Comfort

    Based in Stevensville, 11 mi away

    89/100CR Score

    Ranked #12 because of its Google rating and availability: 5.0★ from 285 Google reviews, open 24/7.

    • 5.0★ from 285 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1102 Butterworth Ct suite 100, Stevensville, MD 21666
    View profile for Shoreline Comfort(410) 739-4232

  17. #17 Ambient LLC

    Based in Annapolis, 4 mi away

    87/100CR Score

    Ranked #17 because of its Google rating and availability: 5.0★ from 52 Google reviews, open 24/7.

    • 5.0★ from 52 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1910 Towne Centre Blvd Suite 250, Annapolis, MD 21401
    View profile for Ambient LLC(410) 449-4021

  19. #19 Ambient LLC

    Based in Severn, 12 mi away

    87/100CR Score

    Ranked #19 because of its Google rating and availability: 4.8★ from 336 Google reviews, open 24/7.

    • 4.8★ from 336 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    508 Shaw Ct #103, Severn, MD 21144
    View profile for Ambient LLC(410) 429-7280

  22. #22 United Air Temp

    Based in Greenbelt, 20 mi away

    87/100CR Score

    Ranked #22 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

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

HVAC contractors in Arnold, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Len The Plumber Heating & Air, LLC864.7★ (15,911)18 mi
27Sila Heating, Air Conditioning & Plumbing864.9★ (275)18 mi
28GAC Services864.9★ (998)13 mi
29Michael & Son Services864.8★ (8,326)20 mi
30Arundel Service Experts864.7★ (472)16 mi
31Contemporary Air Systems, Inc.865.0★ (195)19 mi
32Palmer Heating and Cooling864.9★ (51)8 mi
33Alpha Heating & Air Conditioning, LLC864.9★ (419)21 mi
34Reliability Home Services864.7★ (539)16 mi
35JJ HEATING & COOLING COMPANY854.8★ (110)11 mi
36A.P. Mathews Heating & A/C854.8★ (111)12 mi
37Zoned Heating and Cooling855.0★ (40)9 mi
38Clarksville Heating & Air, LLC855.0★ (729)16 mi
39F.H. Furr Plumbing, Heating, Air Conditioning & Electrical854.8★ (1,788)13 mi
40Hughes Mechanical, LLC854.8★ (408)20 mi
41Above All Heating & Cooling854.8★ (45)8 mi
42ARS / Rescue Rooter854.4★ (3,510)18 mi
43At Your Service Heating and Cooling LLC854.6★ (811)18 mi
44Elite Air Annapolis AC Repair855.0★ (15)4 mi
45OP HVAC Solutions855.0★ (21)2 mi
46Tario HVAC, LLC854.9★ (142)18 mi
47Thermal Plus LLC855.0★ (203)11 mi
48ABC Cooling & Heating LLC854.7★ (247)16 mi
49United Air Temp854.8★ (171)17 mi
50THE ELECTRICIANS844.9★ (98)17 mi

Also serving Arnold

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 Arnold
BusinessGoogle ratingDistance
All About Everything HVAC & Maintenance3.0★ (2)7 mi
American Eagle Foundation Repair and Waterproofing Experts5.0★ (26)In Arnold
Annapolis AirIn Arnold
Annapolis Bishop Electric5.0★ (28)In Arnold
Arnold, MD Commercial and Residential ElectricianIn Arnold
DC AC DuctlessIn Arnold
Devlin Plumbing & Drain5.0★ (37)In Arnold
DJE Plumbing and Heating5.0★ (2)13 mi
DM3 Heating & Air5.0★ (2)13 mi
E.B.2 Carpentry5.0★ (7)In Arnold
Green Apple Energy AuditorsIn Arnold
JDL HVAC & Plumbing Services4.8★ (678)19 mi
oncall-garageservice5.0★ (2)10 mi
Pasadena Heating and Cooling1.0★ (2)8 mi
ROCKY LLC4.6★ (253)14 mi
Sears Heating and Air Conditioning3.0★ (2)8 mi
SERVPRO of Annapolis/Severna Park4.6★ (100)In Arnold
Severn's Heating and Air Conditioning3.0★ (2)4 mi
Tack Mechanical LLC4.8★ (57)12 mi
Wrangler Plumbing & Heating5.0★ (2)8 mi

How much do HVAC contractors cost in Arnold?

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

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

We scored 609 Arnold 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 Arnold 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 Arnold: frequently asked questions

Who is the best HVAC contractor in Arnold?

By CR Score, the highest-ranked HVAC contractor in Arnold, MD is Staton Heating, Cooling & Plumbing with a CR Score of 93/100. It has 4.9★ from 2,904 Google reviews. It is open 24/7. Barstow & Sons Heating and Cooling (#2) and Boothe's Heating, Air, Plumbing, Drains & Electrical (#3) follow. We ranked 609 HVAC contractors on 8 factors, last updated October 22, 2026.

How many HVAC contractors are there in Arnold?

ContractorsRanked ranks 609 HVAC contractors serving Arnold, MD. 1 of them is based in Arnold; 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 Arnold are open 24/7?

177 ranked HVAC contractors in Arnold post 24/7 hours. The highest-ranked are Staton Heating, Cooling & Plumbing (#1), Barstow & Sons Heating and Cooling (#2) and Boothe's Heating, Air, Plumbing, Drains & Electrical (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which HVAC contractors in Arnold work on weekends?

374 of 609 ranked HVAC contractors post Saturday hours and 272 post Sunday hours. The highest-ranked open Saturdays are Staton Heating, Cooling & Plumbing (#1), Barstow & Sons Heating and Cooling (#2) and Boothe's Heating, Air, Plumbing, Drains & 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 Arnold?

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

What Google rating do Arnold HVAC contractors have?

The median Google rating among 609 rated HVAC contractors in Arnold is 4.8★, with a median of 19 reviews. Len The Plumber Heating & Air, LLC has the most, 15,911 reviews, and ranks #26. 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 Arnold?

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 Arnold

  1. October 2026: CR Scores recalculated for 609 hvac contractors serving Arnold.
  2. October 2026: 3 duplicate listings merged.

More HVAC contractors and Arnold pages

Other trades in Arnold