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Plumbers and heating and cooling contractors in Montgomery County, MD

  • 93

    Contractors

  • 53

    With Google ratings

  • 21

    Registered 10+ years

93 plumbers and heating and cooling contractors are listed in Montgomery County. 37 hold an active USDOT registration.

Of the 36 with a fleet size on record, 33 run one to three trucks, 2 run four to ten and 1 runs more than ten. Gaithersburg has the most contractors with 18, then Germantown with 12 and Gaithersburg with 11.

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Contractors 1 to 50 of 93

  1. MoCo Plumbing, LLC
    5.0 from 550 reviews via Google
    (240) 286-1040
  2. Narfix Heating and Air Conditioning LLC
    Silver Spring5.0 from 309 reviews via Google
    (240) 919-9952
  3. Simply Home Service
    Germantown5.0 from 214 reviews via Google
    (301) 518-9977
  4. Smock Heating & Air
    Gaithersburg5.0 from 179 reviews via Google
    (301) 831-8288
  5. Sichinava Heating and Air Conditioning
    Gaithersburg5.0 from 169 reviews via Google
    (240) 802-7208
Map of plumbers and heating and cooling contractors in Montgomery County, MD
Pins mark ZIP code areas. A number shows how many contractors share that ZIP code.
  1. Catons Plumbing, Drains & Water Cleanup
    Germantown5.0 from 166 reviews via Google
    (410) 823-6240
  2. BNH Home Services LLC
    Germantown5.0 from 149 reviews via Google
    (240) 855-5308
  3. JLM Handyman Services / General Contractor
    Germantown5.0 from 126 reviews via Google
    (443) 362-1179
  4. Van's Plumbing, LLC
    5.0 from 121 reviews via Google
    (240) 801-7002
  5. Rehoboth Plumbing & Drain, LLC
    5.0 from 119 reviews via Google
    (301) 401-6811
  6. Potomac HVAC
    North Potomac5.0 from 108 reviews via Google
    (888) 880-0945
  7. Key City Plumbing & Contracting
    5.0 from 89 reviews via Google
    (301) 276-0639
  8. Plumber Services & Solutions of Bethesda
    Bethesda5.0 from 83 reviews via Google
    (301) 507-1487
  9. Agape Drain & Plumbing LLC
    5.0 from 81 reviews via Google
    (227) 223-9057
  10. Plumber Services & Solutions of Germantown
    5.0 from 56 reviews via Google
    (301) 477-9603
  11. Another Plumber, Inc.
    5.0 from 32 reviews via Google
  12. Quince Orchard Plumbing
    5.0 from 28 reviews via Google
    (202) 438-9999
  13. Straw Hat Plumbers & Drain Services of Germantown
    Germantown5.0 from 13 reviews via Google
    (240) 408-0193
  14. Straw Hat Plumbers & Drain Cleaning of Rockville
    Rockville5.0 from 9 reviews via Google
    (240) 453-4789
  15. Gaithersburg AC and Heating - AMS
    Gaithersburg5.0 from 7 reviews via Google
    (301) 377-2740
  16. Alpha Heating & Cooling LLC
    5.0 from 6 reviews via Google
    (240) 396-8376
  17. Rally Refrigeration, Heating & Cooling
    Germantown5.0 from 6 reviews via Google
    (240) 360-3109
  18. GAC Services
    Gaithersburg4.9 from 7900 reviews via Google
    (301) 202-1641
  19. Mallick Plumbing & Heating, Inc.
    Gaithersburg4.9 from 2400 reviews via Google
    (301) 804-6759
  20. Presidential, Inc.
    Gaithersburg4.9 from 1900 reviews via Google
    (301) 719-3315
  21. B&B Air Conditioning & Heating Service
    Rockville4.9 from 710 reviews via Google
    (301) 965-1890
  22. Rod Miller Company
    Gaithersburg4.9 from 692 reviews via Google
    (301) 587-1517
  23. Metro Services HVAC
    Gaithersburg4.9 from 421 reviews via Google
    (240) 676-1804
  24. Making Air Right
    4.9 from 384 reviews via Google
    (301) 514-8368
  25. Atlantic Coastal Cooling and Heating, Inc. (ACCH)
    Gaithersburg4.9 from 330 reviews via Google
    (301) 216-1945
  26. Mannix Heating and Cooling- Gaithersburg
    Gaithersburg4.9 from 190 reviews via Google
    (301) 260-6000
  27. AMS Air Conditioning & Heating
    Rockville4.9 from 127 reviews via Google
    (240) 899-5777
  28. Clarksburg Heating
    Germantown4.9 from 67 reviews via Google
    (240) 994-9403
  29. AM Bell Plumbing
    4.9 from 61 reviews via Google
    (443) 699-1095
  30. HandyMikemd home improvement & HVAC System
    Germantown4.9 from 60 reviews via Google
    (240) 701-1182
  31. Ferris Plumbing & Repair
    Gaithersburg4.9 from 54 reviews via Google
    (301) 426-6540
  32. H-TWO-O of Maryland
    4.9 from 53 reviews via Google
    (301) 424-9000
  33. Michael Bonsby HVAC, Plumbing & Electrical
    Gaithersburg4.8 from 2600 reviews via Google
    (240) 317-9904
  34. CroppMetcalfe Gaithersburg
    Gaithersburg4.8 from 1800 reviews via Google
    (301) 579-0110
  35. Roto-Rooter Plumbing & Water Cleanup
    Rockville4.8 from 1200 reviews via Google
    (301) 755-2939
  36. Anthony & Son Indoor Air Quality, LLC
    Rockville4.8 from 933 reviews via Google
    (240) 683-6862
  37. Cool Breeze Plumbing, Heating & A/C
    Gaithersburg4.8 from 715 reviews via Google
    (301) 879-3400
  38. 0'CONNOR Plumbing
    Germantown4.8 from 682 reviews via Google
    (301) 540-5050
  39. United Air Temp
    Gaithersburg4.8 from 447 reviews via Google
    (410) 424-5902
  40. JBA Heating and Air Conditioning
    Germantown4.8 from 38 reviews via Google
    (786) 399-2206
  41. AirPro
    Germantown4.8 from 18 reviews via Google
    (240) 498-6588
  42. F.H. Furr Plumbing, Heating, Air Conditioning & Electrical
    Rockville4.7 from 6800 reviews via Google
    (703) 497-0180
  43. The Drain Guys
    Gaithersburg4.7 from 186 reviews via Google
    (301) 867-7632
  44. Plumbing Pro Services Germantown
    4.7 from 43 reviews via Google
    (855) 700-4238
  45. Blue Mountain Plumbing LLC
    Gaithersburg4.7 from 19 reviews via Google
    (301) 200-2900
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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 Montgomery County

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Homes in Montgomery County

Half the homes in Montgomery County were built before 1980, 49% before 1980 and 20% 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, Montgomery County averaged 4,628 heating degree days and 1,069 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 Montgomery County, 53% of occupied homes heat with utility gas, 41% with electricity. (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 ↑