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Plumbers and heating and cooling contractors in Baltimore County, MD

  • 103

    Contractors

  • 41

    With Google ratings

  • 39

    Registered 10+ years

103 plumbers and heating and cooling contractors are listed in Baltimore County. 63 hold an active USDOT registration.

Of the 60 with a fleet size on record, 44 run one to three trucks, 11 run four to ten and 5 run more than ten. Baltimore has the most contractors with 20, then Baltimore with 5 and Essex with 5.

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Contractors 1 to 50 of 103

  1. Old Line Heating and Air
    5.0 from 298 reviews via Google
    (410) 896-7480
  2. Paramount Heating & Air Conditioning LLC
    Baltimore5.0 from 237 reviews via Google
    (410) 650-4031
  3. Contemporary Air Systems, Inc.
    Essex5.0 from 196 reviews via Google
    (410) 391-3070
  4. Elite Air Solutions, LLC-MD
    Baltimore5.0 from 182 reviews via Google
    (410) 977-0777
  5. Purple Clay Plumbing, LLC
    5.0 from 121 reviews via Google
    (410) 800-1931
Map of plumbers and heating and cooling contractors in Baltimore County, MD
Pins mark ZIP code areas. A number shows how many contractors share that ZIP code.
  1. Carver Heating & Cooling
    Catonsville5.0 from 86 reviews via Google
    (410) 621-7552
  2. Dalton Air Conditioning Repair
    Gwynn Oak5.0 from 81 reviews via Google
    (410) 755-7581
  3. Lessner Plumbing
    Reisterstown5.0 from 74 reviews via Google
    (410) 746-8415
  4. Thornton Heating & Air Conditioning
    Randallstown5.0 from 63 reviews via Google
    (410) 763-2782
  5. Harbor State HVAC
    5.0 from 31 reviews via Google
    (443) 363-5158
  6. New Edge Mechanical
    5.0 from 19 reviews via Google
    (443) 619-0997
  7. Brian B. Quick Plumbing
    Reisterstown4.9 from 1200 reviews via Google
    (443) 332-5436
  8. Roto-Rooter Plumbing & Water Cleanup
    Dundalk4.9 from 871 reviews via Google
    (410) 740-7235
  9. S&L Prime A/C and Heating
    Glen Arm4.9 from 836 reviews via Google
    (410) 803-5414
  10. Metcalf Plumbing Service, LLC
    Catonsville4.9 from 812 reviews via Google
    (410) 242-3111
  11. Donovan WaterWorks
    Cockeysville4.9 from 806 reviews via Google
    (410) 240-5299
  12. Triple E
    Reisterstown4.9 from 496 reviews via Google
    (410) 833-1133
  13. Green Comfort Systems
    Rosedale4.9 from 483 reviews via Google
    (443) 607-5151
  14. Maryland Heating & Air
    Essex4.9 from 463 reviews via Google
    (855) 410-8324
  15. Sila Heating, Air Conditioning & Plumbing
    Halethorpe4.9 from 281 reviews via Google
    (410) 489-1973
  16. Elite Plumbing & Home Services
    4.9 from 254 reviews via Google
    (443) 343-2284
  17. SM Mechanical LLC
    Essex4.9 from 238 reviews via Google
    (443) 559-5314
  18. Get Back Plumbing
    Halethorpe4.9 from 112 reviews via Google
    (443) 264-4294
  19. LJ Butler Plumbing and Heating
    Perry Hall4.9 from 110 reviews via Google
    (410) 485-7517
  20. Zoned Heating and Cooling
    4.9 from 55 reviews via Google
    (443) 869-9966
  21. Aire-Craft Heating & Cooling Co Inc
    Baltimore4.9 from 34 reviews via Google
    (410) 433-7079
  22. Horizon Services - Air Conditioning, Heating, Plumbing, & Electrical
    Windsor Mill4.8 from 5100 reviews via Google
    (484) 795-1686
  23. Farnen & Dermer Inc.
    Owings Mills4.8 from 1000 reviews via Google
    (410) 902-0020
  24. Albright's Mechanical Services Inc
    Essex4.8 from 719 reviews via Google
    (410) 391-4737
  25. Elmar Heating & Cooling
    Timonium4.8 from 676 reviews via Google
    (443) 266-8014
  26. Mike's Plumbing And Heating Services Inc.
    Essex4.8 from 517 reviews via Google
    (410) 541-1811
  27. Hughes Mechanical
    Essex4.8 from 450 reviews via Google
    (410) 937-2261
  28. Pinnacle Heating & Air Conditioning
    Dundalk4.8 from 189 reviews via Google
    (410) 288-2020
  29. Bamford Plumbing & Heating Inc
    Dundalk4.8 from 20 reviews via Google
    (410) 804-0111
  30. Len The Plumber Heating & Air, LLC
    Halethorpe4.7 from 18000 reviews via Google
    (410) 324-3635
  31. Catons Plumbing, Drains & Water Cleanup
    Catonsville4.7 from 1800 reviews via Google
    (410) 391-8628
  32. Reliability Home Services
    Dundalk4.7 from 573 reviews via Google
    (443) 399-8663
  33. ABC Cooling & Heating LLC
    Dundalk4.6 from 271 reviews via Google
    (443) 803-9070
  34. All Nite Sewer & Drain Cleaning, LLC.
    Rosedale4.6 from 66 reviews via Google
    (443) 564-7774
  35. Stilwell Plumbing & Drain Cleaning
    Baltimore4.3 from 347 reviews via Google
    (410) 593-0970
  36. Zoom Drain
    Baltimore4.1 from 47 reviews via Google
    (410) 304-6434
  37. Fidelity Engineering Corporation Fidelity Power Systems Fidelity Mechanical
    Sparks
    (410) 891-1511
  38. Ensor Plumbing
    Owings Mills
    (410) 429-4959
  39. Honest ABE Plumbing Inc
    Owings Mills
    (410) 358-5041
  40. Stilwell Plumbing Inc
    Baltimore
    (410) 488-4545
  41. G A Mechanical Inc
    Kingsville
    (410) 335-4555
  42. T & D Plumbing & Heating Co Inc
    Halethorpe
    (410) 242-8850
  43. Melroy Plumbing & Heating Inc
    Baltimore
    (410) 747-0900
  44. Mikes Plumbing and Heating Service Inc
    Baltimore
    (410) 665-6453
  45. Binder Plumbing and Heating
    Baltimore
    (410) 668-4800
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Ranked by verified owner, then a Google rating of 4.0 or higher, then review count, then fleet size. A lower rating is still shown, and ranks with the listings we hold no rating for. How ranking works

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Services in Baltimore County

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Homes in Baltimore County

Half the homes in Baltimore County were built before 1973, 59% before 1980 and 32% before 1960. (Census Bureau American Community Survey table B25035, 2020 to 2024 5-year estimates; Census Bureau American Community Survey table B25034, 2020 to 2024 5-year estimates)

From 1991 to 2020, Baltimore County averaged 4,762 heating degree days and 1,071 cooling degree days a year. (NOAA NCEI nClimDiv county heating degree days, 1991 to 2020 averages; NOAA NCEI nClimDiv county cooling degree days, 1991 to 2020 averages)

In Baltimore County, 52% of occupied homes heat with utility gas, 38% with electricity and 7% with fuel oil or kerosene. (Census Bureau American Community Survey table B25040, 2020 to 2024 5-year estimates)

Plumbing and HVAC rules in Maryland

What plumbing and HVAC work costs in Maryland

Ranges are national; ask contractors near you.

A plumber's hourly rate
$45 to $200 an hour; most charge $70 to $150 (HomeAdvisor, Fixr, HomeGuide)
A plumber's service call
$50 to $300 a visit, which often covers the first hour (HomeAdvisor, Fixr, HomeGuide)
After-hours or emergency call
about $100 to $300 added to the call, or about $150 to $350 an hour (HomeAdvisor, Fixr, HomeGuide)
Burst or leaking pipe repair
$200 to $3,000; the guides' averages run $500 to $1,200 (HomeAdvisor, Fixr, HomeGuide)
Clearing a sink, tub or toilet drain
$100 to $275 (HomeAdvisor, Fixr, HomeGuide)
Clearing the main line
$175 to $800; typically $350 to $650 (HomeAdvisor, Fixr, HomeGuide)
Hydro jetting
$350 to $1,400, depending on the line and the blockage (HomeAdvisor, Fixr, HomeGuide)
Gas tank water heater
$700 to $2,700 installed; about $1,900 on average (HomeAdvisor, Fixr, HomeGuide)
Tankless water heater
$1,600 to $5,600 installed for gas, depending on gas line and venting work (HomeAdvisor, Fixr, HomeGuide)$850 to $3,000 installed for electric, before any panel upgrade ($850 to $1,700) (Fixr, HomeGuide)
Heat pump water heater
$2,000 to $4,600 installed in place of an electric tank; more when it replaces gas (HomeAdvisor, Fixr, HomeGuide)
Sewer camera inspection
$125 to $500 (HomeAdvisor, Fixr, HomeGuide)
Sewer line replacement
about $1,400 to $5,300 for a typical line (HomeAdvisor, HomeGuide)$50 to $250 a linear foot (HomeAdvisor, HomeGuide)
Replacing central AC on existing ducts
$3,900 to $8,000; about $6,000 on average (HomeAdvisor, Fixr, Forbes Home)
Swapping a heat pump on existing ducts
$4,000 to $8,000; a 3-ton system about $3,900 to $6,200 (HomeAdvisor, Forbes Home, HomeGuide)
A whole-home heat pump system
commonly $14,000 or more (NYSERDA, Massachusetts EEAC, Fixr, HomeGuide)
Replacing a gas furnace
$3,800 to $6,200 at standard efficiency (HomeGuide, HomeAdvisor, Fixr, Forbes Home)$5,200 to $12,000 at high efficiency (90% AFUE and up) (HomeGuide, HomeAdvisor, Fixr, Forbes Home)
Replacing an electric furnace
$1,600 to $8,000, with a like-for-like swap at the low end (Fixr, HomeAdvisor)
A single-zone mini-split
$2,000 to $5,000 (HomeGuide, Fixr, Forbes Home)
A multi-zone mini-split
$3,000 to $14,000 for 2 to 4 zones (HomeGuide, Fixr, Forbes Home)
An HVAC tune-up
$70 to $350 a visit; a basic tune-up is often about $100 to $200 (HomeGuide, HomeAdvisor, Fixr)
An HVAC maintenance plan
$120 to $500 a year (HomeGuide, Fixr)

Ranges from HomeAdvisor, HomeGuide, Fixr, Forbes Home, NYSERDA and the Massachusetts EEAC, checked September 2026.

What plumbing and HVAC work costs in Maryland

Rules in Maryland

Maryland licenses master, journeyperson and apprentice plumbers through its State Board of Plumbing.1, 2, 3 Heating and cooling contractors in Maryland are licensed by a separate state board.4 Your local building department in Maryland can tell you whether replacing a water heater, furnace or AC needs a permit.

Plumbing and HVAC rules in Maryland

Nearby counties

Sources

  1. Maryland Department of Labor ↑
  2. Maryland Department of Labor ↑
  3. Maryland Department of Labor ↑
  4. Maryland Department of Labor ↑