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Plumbers and heating and cooling contractors in New Castle County, DE

  • 81

    Contractors

  • 60

    With Google ratings

  • 12

    Registered 10+ years

81 plumbers and heating and cooling contractors are listed in New Castle County. 20 hold an active USDOT registration.

Of the 20 with a fleet size on record, 16 run one to three trucks, 2 run four to ten and 2 run more than ten. Wilmington has the most contractors with 24, then Newark with 15 and Newark with 8.

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Contractors 1 to 50 of 81

  1. Done Right Today
    Wilmington5.0 from 3000 reviews via Google
    (302) 433-6273
  2. LIAM Services
    New Castle5.0 from 1100 reviews via Google
    (302) 317-2727
  3. Triton Services
    Delaware City5.0 from 540 reviews via Google
    (302) 985-7656
  4. Aqua Plumbing Pros
    Wilmington5.0 from 113 reviews via Google
    (302) 757-5807
  5. The Water Heater Company
    Newark5.0 from 75 reviews via Google
    (302) 775-9132
Map of plumbers and heating and cooling contractors in New Castle County, DE
Pins mark ZIP code areas. A number shows how many contractors share that ZIP code.
  1. Zoom Drain
    Wilmington5.0 from 36 reviews via Google
    (302) 238-6376
  2. K C Weaver & Sons
    Newark5.0 from 34 reviews via Google
    (302) 365-0746
  3. Rapid Plumbers Wilmington
    Wilmington5.0 from 21 reviews via Google
    (302) 391-7495
  4. TempPro AC Repair
    Bear5.0 from 13 reviews via Google
    (302) 215-5642
  5. AirFix New Castle AC Repair
    New Castle5.0 from 12 reviews via Google
    (302) 302-8257
  6. Breeze AC Repair
    Wilmington5.0 from 12 reviews via Google
    (302) 215-5263
  7. PureAir Middletown AC Work
    Middletown5.0 from 12 reviews via Google
    (302) 302-8256
  8. Flow Clear inc
    Newark5.0 from 10 reviews via Google
    (302) 495-9505
  9. Affordable Plumbers Wilmington Delaware
    Wilmington5.0 from 9 reviews via Google
    (302) 208-6606
  10. Superior Newark AC Repair LLC
    Newark5.0 from 7 reviews via Google
    (302) 565-3382
  11. Cool Wilmington AC Repair LLC
    Wilmington5.0 from 6 reviews via Google
    (302) 551-2679
  12. Best Plumber Wilmington DE
    Wilmington5.0 from 4 reviews via Google
    (302) 600-4175
  13. Vaulted HVAC Repair Wilmington
    Wilmington5.0 from 4 reviews via Google
    (302) 434-8201
  14. Central Newark HVAC Repair
    Newark5.0 from 3 reviews via Google
    (302) 216-7157
  15. Noventra HVAC Repair Wilmington
    Wilmington5.0 from 3 reviews via Google
    (302) 434-8286
  16. Ventara HVAC Repair Wilmington
    Wilmington5.0 from 3 reviews via Google
    (302) 434-8329
  17. Zorvex HVAC Repair Wilmington
    Wilmington5.0 from 3 reviews via Google
    (302) 406-5865
  18. Aire Serv of Newark DE
    Newark4.9 from 3500 reviews via Google
    (302) 330-8409
  19. Benjamin Franklin Plumbing of Wilmington DE
    Wilmington4.9 from 3400 reviews via Google
    (302) 524-7437
  20. One Hour Heating & Air Conditioning® of Wilmington De
    Wilmington4.9 from 3300 reviews via Google
    (302) 449-9268
  21. Air Temp Solutions - AC Repair, Heating Repair, Water Heater Repair & Plumbing Newark DE
    Newark4.9 from 2300 reviews via Google
    (302) 497-4714
  22. Aire Serv of Middletown
    Middletown4.9 from 695 reviews via Google
    (302) 956-9226
  23. Summit Heating and Air Conditioning LLC
    Townsend4.9 from 676 reviews via Google
    (302) 378-1203
  24. Maichle's Heating and Air Conditioning
    New Castle4.9 from 666 reviews via Google
    (302) 328-4822
  25. Mr Rooter Plumbing of Newark
    Newark4.9 from 488 reviews via Google
    (302) 455-7575
  26. Zoom Drain
    Bear4.9 from 393 reviews via Google
    (302) 200-4266
  27. True Blue Mechanical
    Newark4.9 from 221 reviews via Google
    (302) 308-1304
  28. Priority Plumbing & Drain
    New Castle4.9 from 219 reviews via Google
    (302) 480-7298
  29. D&T Heating & Cooling
    Bear4.9 from 218 reviews via Google
    (302) 838-6905
  30. Old School Heating & Cooling LLC
    Claymont4.9 from 215 reviews via Google
    (302) 383-7036
  31. Tri Elite Advisors Hvac
    Wilmington4.9 from 197 reviews via Google
    (484) 347-5220
  32. Ambience HVAC
    4.9 from 151 reviews via Google
    (302) 239-4822
  33. The Plumbing Company
    Wilmington4.9 from 72 reviews via Google
    (302) 998-0938
  34. Wilmington Heating and Air Conditioning
    Wilmington4.9 from 15 reviews via Google
    (302) 589-4001
  35. Horizon Services - Air Conditioning, Heating, Plumbing, & Electrical
    Wilmington4.8 from 9700 reviews via Google
    (302) 303-6671
  36. Boulden Brothers
    Newark4.8 from 2700 reviews via Google
    (302) 246-7878
  37. Delaware Plumbing Professionals
    Wilmington4.8 from 2200 reviews via Google
    (302) 308-5535
  38. F.H. Furr Plumbing, Heating, Air Conditioning & Electrical
    New Castle4.8 from 2200 reviews via Google
    (302) 947-8694
  39. Roto-Rooter Plumbing & Water Cleanup
    Newark4.8 from 2100 reviews via Google
    (302) 655-1070
  40. Harris Plumbing, Heating, Air & Electrical
    New Castle4.8 from 1900 reviews via Google
    (302) 618-3501
  41. Burns & McBride Home Comfort
    New Castle4.8 from 1600 reviews via Google
    (302) 272-5724
  42. Service Today Heating, Air Conditioning, Plumbing and Electrical
    Bear4.8 from 1400 reviews via Google
    (443) 247-3151
  43. Roto-Rooter Plumbing & Water Cleanup
    Wilmington4.8 from 904 reviews via Google
    (302) 449-1301
  44. Stan Perkoski's Home Services
    Wilmington4.8 from 511 reviews via Google
    (302) 529-1220
  45. Desmond Heating And Cooling Solutions
    Newark4.8 from 385 reviews via Google
    (302) 232-5525
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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 New Castle County

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Homes in New Castle County

Half the homes in New Castle County were built before 1975, 56% before 1980 and 30% 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, New Castle County averaged 4,654 heating degree days and 1,106 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 New Castle County, 54% of occupied homes heat with utility gas, 32% with electricity and 9% with fuel oil or kerosene. (Census Bureau American Community Survey table B25040, 2020 to 2024 5-year estimates)

Plumbing and HVAC rules in Delaware

What plumbing and HVAC work costs in Delaware

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 Delaware

Rules in Delaware

Delaware licenses master plumbers individually through its plumbing and HVACR examiners board.1, 2, 3 Heating and cooling contractors in Delaware hold a Master HVACR license, for the full trade or restricted to one specialty.4 Replacing an existing water heater in Delaware needs no permit or fee from the state's Division of Public Health.5

Plumbing and HVAC rules in Delaware

Nearby counties

Sources

  1. Delaware Division of Professional Regulation ↑
  2. Delaware Open Data ↑
  3. Delaware Division of Professional Regulation ↑
  4. Delaware Division of Professional Regulation ↑
  5. Delaware Register of Regulations ↑