Licensed system contractors in Kent County, Delaware

22 companies on Delaware’s roster of licensed Class E system contractors give Kent County as their address. A licensed system contractor is a business the state has licensed for the work that installs, repairs and replaces onsite wastewater systems.

AAA Environmental Services, LLC
(302) 632-1847Felton
EvaluatorContractorInspectorDesigner
Apple Designs
(302) 670-7301Harrington
DesignerInspectorContractor
Countryside Excavation
(302) 363-7395Hartly
DesignerContractorInspector
Delaware Log Homes
(302) 270-6200Frederica
DesignerContractorInspector
Frank G Hrupsa
(302) 270-1817Harrington
Contractor
Gary Simpson Contracting
(410) 829-3291Harrington
Contractor
Gateway Construction
(302) 653-4400Hartly
Contractor
Gerardi Septic Service, LLC
(302) 242-6599Harrington
ContractorInspector
Gill Construction Incoporated
(302) 270-9166Magnolia
ContractorInspector
John H Cook and Son
(302) 653-9932Clayton
Contractor
K4 Management
(302) 736-0180Dover
Contractor
Ken Darling & Sons, Inc
(302) 697-2286Camden Wyoming
ContractorHauler
LE Parsons LLC
(302) 670-8007Dover
ContractorInspectorHauler
M And D Plumbing and Drain Cleaning Specialists, Inc.
(302) 492-8880Marydel
HaulerInspectorContractor
Mark Kohout Jr.
(302) 653-4400Clayton
Contractor
Roger Darling Incorporated
(302) 270-1906Marydel
Contractor
Septic Masters
(302) 861-0433Hartly
ContractorHaulerInspector
Sunnyfield Contractors
(302) 674-8610Dover
DesignerContractor
Tru Grit LLC
(302) 593-4700Clayton
ContractorHauler
Vernon Hood Construction
(302) 422-7170Harrington
DesignerContractor
Wade Kimball Construction
(302) 284-4732Camden Wyoming
Contractor
White Marsh Environmental Systems Inc
(302) 734-7500Dover
Contractor

Licensed system contractors in Kent County
Company	Licensed for	Phone
AAA Environmental Services, LLCFelton	EvaluatorContractorInspectorDesigner	(302) 632-1847
Apple DesignsHarrington	DesignerInspectorContractor	(302) 670-7301
Countryside ExcavationHartly	DesignerContractorInspector	(302) 363-7395
Delaware Log HomesFrederica	DesignerContractorInspector	(302) 270-6200
Frank G HrupsaHarrington	Contractor	(302) 270-1817
Gary Simpson ContractingHarrington	Contractor	(410) 829-3291
Gateway ConstructionHartly	Contractor	(302) 653-4400
Gerardi Septic Service, LLCHarrington	ContractorInspector	(302) 242-6599
Gill Construction IncoporatedMagnolia	ContractorInspector	(302) 270-9166
John H Cook and SonClayton	Contractor	(302) 653-9932
K4 ManagementDover	Contractor	(302) 736-0180
Ken Darling & Sons, IncCamden Wyoming	ContractorHauler	(302) 697-2286
LE Parsons LLCDover	ContractorInspectorHauler	(302) 670-8007
M And D Plumbing and Drain Cleaning Specialists, Inc.Marydel	HaulerInspectorContractor	(302) 492-8880
Mark Kohout Jr.Clayton	Contractor	(302) 653-4400
Roger Darling IncorporatedMarydel	Contractor	(302) 270-1906
Septic MastersHartly	ContractorHaulerInspector	(302) 861-0433
Sunnyfield ContractorsDover	DesignerContractor	(302) 674-8610
Tru Grit LLCClayton	ContractorHauler	(302) 593-4700
Vernon Hood ConstructionHarrington	DesignerContractor	(302) 422-7170
Wade Kimball ConstructionCamden Wyoming	Contractor	(302) 284-4732
White Marsh Environmental Systems IncDover	Contractor	(302) 734-7500

What “Licensed system contractor” means in Delaware

Being on this roster means Delaware DNREC has licensed this business for installs, repairs and replaces onsite wastewater systems. It is not a rating, a review, or a statement about price, insurance or workmanship.

Every licence in the published dataset carries an approved status; DNREC republishes the dataset as licences change.

Before you hire, confirm the licence with DNREC, or the state's own licensee dataset. How to verify →

Licensed system contractors in neighbouring counties

Records as published August 26, 2026. Report a correction.