GroundRosterLicensed Water Well Contractors: Suffolk County, NY
33 licensed water well contractors based in Suffolk County. Every license number below is sourced from public licensing records, with a link to look it up yourself.
Grouped by the county of the address on each license record, which can be a mailing address, so it doesn't tell you where the business works. When the record names no county, we place it by ZIP code, then town.
Checked against New York State DEC - Water Well Contractor Registry and NJDEP DataMiner - Well Drilling Companies. Roster copy last refreshed 2026-08-17.
Towns in Suffolk County
All 27 towns named on the license records based here, with the number of listings in each, most first.
License classes on the Suffolk County records
Each class as the issuing agency prints it on the license record. A record that names more than one class counts once under each, so the rows can add up to more than 33.
| License class | Trade | Listings |
|---|---|---|
| Well Drilling Company | Well | 6 |
| Dewatering Well Driller | Well | 4 |
| Geotechnical Well Driller, Monitoring Well Driller | Well | 2 |
| Agricultural Well Driller, Commercial Well Driller, Control of Overflowing Wells, Dewatering Well Driller, Geotechnical Well Driller, Geothermal Well Driller, Hydrofracturing, Injection Well Driller, Irrigation Well Driller, Monitoring Well Driller, Public Water Supply Well Driller, Pump Installation, Pump Service, Residential Well Driller, Well Cleaning & Redevelopment, Well Deepening, Well Disinfection | Well | 1 |
| Agricultural Well Driller, Commercial Well Driller, Control of Overflowing Wells, Dewatering Well Driller, Geotechnical Well Driller, Geothermal Well Driller, Injection Well Driller, Irrigation Well Driller, Monitoring Well Driller, Public Water Supply Well Driller, Pump Installation, Pump Service, Residential Well Driller, Well Cleaning & Redevelopment, Well Deepening, Well Disinfection | Well | 1 |
| Agricultural Well Driller, Commercial Well Driller, Dewatering Well Driller, Geothermal Well Driller, Injection Well Driller, Irrigation Well Driller, Monitoring Well Driller, Public Water Supply Well Driller, Pump Installation, Pump Service, Residential Well Driller, Well Cleaning & Redevelopment, Well Deepening, Well Disinfection | Well | 1 |
| Agricultural Well Driller, Commercial Well Driller, Geothermal Well Driller, Irrigation Well Driller, Monitoring Well Driller, Public Water Supply Well Driller, Pump Installation, Pump Service, Residential Well Driller, Well Cleaning & Redevelopment, Well Disinfection | Well | 1 |
| Agricultural Well Driller, Commercial Well Driller, Geothermal Well Driller, Irrigation Well Driller, Public Water Supply Well Driller, Pump Installation, Pump Service, Residential Well Driller, Well Cleaning & Redevelopment, Well Disinfection | Well | 1 |
| Agricultural Well Driller, Geothermal Well Driller, Irrigation Well Driller, Pump Installation, Pump Service, Residential Well Driller, Well Disinfection | Well | 1 |
| Agricultural Well Driller, Irrigation Well Driller, Residential Well Driller | Well | 1 |
| Commercial Well Driller, Dewatering Well Driller, Geotechnical Well Driller, Geothermal Well Driller, Injection Well Driller, Irrigation Well Driller, Monitoring Well Driller, Public Water Supply Well Driller, Pump Installation, Pump Service, Residential Well Driller, Well Cleaning & Redevelopment, Well Disinfection | Well | 1 |
| Commercial Well Driller, Geotechnical Well Driller, Monitoring Well Driller, Public Water Supply Well Driller, Well Cleaning & Redevelopment | Well | 1 |
| Commercial Well Driller, Geothermal Well Driller, Pump Installation, Pump Service, Residential Well Driller, Well Disinfection | Well | 1 |
| Commercial Well Driller, Monitoring Well Driller | Well | 1 |
| Dewatering Well Driller, Geotechnical Well Driller, Geothermal Well Driller, Monitoring Well Driller | Well | 1 |
| Dewatering Well Driller, Geotechnical Well Driller, Injection Well Driller, Monitoring Well Driller | Well | 1 |
| Dewatering Well Driller, Geotechnical Well Driller, Injection Well Driller, Monitoring Well Driller, Well Cleaning & Redevelopment | Well | 1 |
| Geothermal Well Driller, Monitoring Well Driller | Well | 1 |
| Injection Well Driller, Monitoring Well Driller | Well | 1 |
| Monitoring Well Driller | Well | 1 |
| Public Water Supply Well Driller, Pump Installation, Pump Service, Well Cleaning & Redevelopment, Well Disinfection | Well | 1 |
| Pump Installation, Pump Service, Residential Well Driller | Well | 1 |
| Pump Installation, Pump Service, Well Cleaning & Redevelopment, Well Disinfection | Well | 1 |
| Pump Installation, Pump Service, Well Disinfection | Well | 1 |
Water Well Contractors based in Suffolk County (33)
Long Island Well ServicesLicensed
Associated Environmental Services, Ltd.Licensed
Eastern Environmental Solutions, Inc.Licensed
Associated Environmental Services LtdLicensed
Lakewood Environmental Services Corp.Licensed
Gregor Well DrillingLicensed
Trinity Environmental Corp.Licensed
Sweetwater Well & Pump Corp.Licensed
East Coast Geoservices, LLCLicensed
Long Island Environmental Assessment, Inc.Licensed
Casola Well Drillers Inc.Licensed
Eagle Control CorporationLicensed
Municipal Testing LabLicensed
Delta Well & Pump Co., Inc.Licensed
Land Air Water Environmental ServicesLicensed
Excav Services IncLicensed
Complete Well & Pump Inc.Licensed
ADJO Contracting CorpLicensed
North Shore Well Drilling Inc.Licensed
Viking Drilling and Testing Inc.Licensed
Longshore Environmental INC.Licensed
A. Casola Service LLCLicensed
EPhase 2, LLCLicensed
Pioneer Landscaping & Asphalt Paving, Inc.Licensed
Product Recovery Management - Clean Globe Environmental LLCLicensed
AARCO Environmental ServicesLicensed
Coastal Environmental Solutions, Inc.Licensed
Long Island Well Drillers, Inc.Licensed
RMC Equipment LLCLicensed
PG Environmental Services, Inc.Licensed
Peconic Well & Pump, Inc.Licensed
Coastal Environmental Solutions, INC.Licensed
Residential Fences Corp.Licensed
Own one of these businesses? Find your listing and claim it.
Looking for a specific contractor? Search by name, business name, or license number.
Services in Suffolk County, with national cost ranges
Listings based in Suffolk County whose license class covers each service. Cost ranges are national; each links its cost guide.
| Service | Based in Suffolk County | National cost |
|---|---|---|
| Well Drilling | 31 | $5,500 to $35,000 |
| Well Pump Repair | 12 | $1,000 to $2,500 |
Hiring a water well contractor in Suffolk County
Water well contractors drill and case new wells, install and service pumps and pressure tanks, and plug wells taken out of service. Well drilling cost is driven mostly by depth and geology. Most states license drilling and pump installation separately; confirm the license covers the work you need.
Before you sign anything: confirm the license on this page is still active with the agency that issued it, ask for proof of insurance, and get at least three written quotes; pricing on this work varies widely by site conditions.
Do I need a permit for well or septic work in New York?