Across Delaware, of the 99 plumbing companies we list, 99 give a phone number and 76 have a website. By what they offer: 7 name drain service in their business name, 1 names water heaters in their business name.
Top 10 plumbing companies in Delaware
Ranked by how complete and owner-verified the listing info is — hours, phone, website, services. No pay-to-play. Full 2026 ranking
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1B Walls & Sons IncMillsboro
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2Done Right TodayWilmington
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4Lighthouse PlumbingLewes
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5Assurance Plumbing CompanyNew Castle
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7Collins Mechanical IncHarrington
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8Delaware Plumbing ProfessionalsWilmington
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9Drip Plumbing Services, LLCElsmere
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10Federal Mechanical ContractorsNew Castle
Cities
Largest first. Towns with a single plumbing company are listed further down this page.
- Wilmington36
- New Castle10
- Newark7
- Dover6
Other towns in Delaware
One plumbing company each — too few for a page of their own, so they live here.
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Advanced Plumbing & MaintenanceBear
20 Valerie Dr, Bear, DE 19701
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Zoom DrainBear
110 Carson Dr, Bear, DE 19701
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Guardian Utility Services IncBear
1280 Porter Rd, Bear, DE 19701-1311
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Michael J Cassetta Plumbing & HeatingBear
123 Walls Way, Bear, DE 19701
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Eashum Henry & Son Inc PlumbersCamden
20 S Dupont Hwy, Camden, DE 19934
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Charles Messina PlumbingCamden
60 Cochran Rd, Camden, DE 19934-2285
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Charles Moon Plumbing & HtgClaymont
2901 Philadelphia Pike, Claymont, DE 19703
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Campbell PlumbingClayton
4244 Holletts Corner Rd, Clayton, DE 19938
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Charles Moon PlumbingDagsboro
33214 Main St, Dagsboro, DE 19939
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Ocean View Plumbing & HeatingDagsboro
31892 Elizabeth Dr, Dagsboro, DE 19939-4333
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Dale Crew PlumbingEllendale
13403 S Union Church Rd, Ellendale, DE 19941
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Drip Plumbing Services, LLCElsmere
303 Osborne Rd, Elsmere, DE 19804
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Rays And SonsFelton
7244 S DuPont Hwy, Felton, DE 19943-5704
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Megee Plumbing & Heating CoGeorgetown
22965 Lewes Georgetown Hwy, Georgetown, DE 19947-5301
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Paradise Plumbing, Inc.Georgetown
22159 Paradise Rd, Georgetown, DE 19947
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Lindale Plumbing, Heating & AirGreenwood
15020 Abbotts Pond Rd, Greenwood, DE 19950-4901
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Elvin Schrock & Sons IncGreenwood
10723 Beach Hwy, Greenwood, DE 19950
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Collins Mechanical IncHarrington
15294 S Dupont Hwy, Harrington, DE 19952
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Jim E Malin's Plumbing & HeatingHockessin
5988 Limestone Rd, Hockessin, DE 19707-9157
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Joel R Amin PlumbingHockessin
205 Cherry Blossom Pl, Hockessin, DE 19707
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Wolfe Plumbing LLCHockessin
1411 Old Wilmington Rd, Hockessin, DE 19707
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Lighthouse PlumbingLewes
909 Pilottown Rd, Lewes, DE 19958-1274
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Mr. Rooter Plumbing of MiddletownMiddletown
1100 Industrial Dr Ste 6, Middletown, DE 19709
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Skye's PlumbingMiddletown
455 Alder Ave, Middletown, DE 19709
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Esquire Plumbing and HeatingMiddletown
7 Wood St, Middletown, DE 19709
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Benjamin Franklin Plumbing of MilfordMilford
1573 Bay Rd, Milford, DE 19963
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B Walls & Sons IncMillsboro
29786 John J Williams Hwy, Millsboro, DE 19966-4099
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Harry Caswell, Inc.Millsboro
34836 Long Neck Rd, Millsboro, DE 19966-4321
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Harry CaswellMillsboro
32645 Long Neck Rd, Millsboro, DE 19966
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Same Day PlumbingMilton
124 Broadkill Rd, Milton, DE 19968-1008
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Clendaniel's Plumbing and HeatingMilton
18052 Gravel Hill Rd, Milton, DE 19968
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Peninsula Plumbing LLCOcean View
37959 William Chandler Blvd, Ocean View, DE 19970
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The Plumbing DoctorOcean View
59 Woodland Ave, Ocean View, DE 19970
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Coastal Services, LlcOcean View
30430 Cedar Neck Rd, Ocean View, DE 19970-4157
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Best Price Heating, Cooling, PlumbingSeaford
105 New St, Seaford, DE 19973
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JDM #1 Plumbing, LLCSmyrna
1150 Paddock Rd, Smyrna, DE 19977
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Fletchers Plumbing and HeatingSmyrna
18 Myrtle St, Smyrna, DE 19977-1075
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Big Red Services - HVAC, Plumbing, ElectricSt Georges
210 Broad St, St Georges, DE 19733
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Plumbing FirstTownsend
110 Sycamore Ln, Townsend, DE 19734
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Big Red Services - Hvac, Plumbing, ElectricWyoming
317 N Layton Ave, Wyoming, DE 19934-1235
BEFORE YOU GO
Prepare for a plumbing visit
Describe the job, confirm charges and define the assessment.
Describe your job
Match your problem to the right service, prepare a useful description and agree on the first visit's scope.
Read the guide
Confirm visit charges
Separate the visit, diagnosis and repair so you know what you could owe before approving any work.
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Plan an inspection
Prepare your questions, clarify what an inspection includes and turn the report into a practical next step.
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