Registered Construction Contractors in Delaware

This is a registry of businesses certified as construction contractors in the State of Delaware. Information on an individual's professional licensing is available through the Division of Professional Regulation.

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ADAMS CORPORATION

Certificate No. DE-2023-000008280

Trade Name (DBA): Lyeos Construction Corporation

Valid until: 07/18/2025

NAICS Code(s): 561990

Rockville, MD

Non-Resident

Valid for Private work only

ALLOPEZ 502 LLC

Certificate No. DE-2023-000007382

Valid until: 01/18/2026

NAICS Code(s): 238160, 238160

Georgetown, DE

Resident

Valid for both Private and Public Work

CALATLANTIC GROUP LLC

Certificate No. DE-2025-000012387

Trade Name (DBA): Lennar

Valid until: 04/15/2026

NAICS Code(s): 236115

Wayne, PA

Non-Resident

Valid for Private work only

D & C BATH LLC

Certificate No. DE-2021-000002507

Trade Name (DBA): Luxury Bath of Delaware

Valid until: 08/10/2026

NAICS Code(s): 236118

Middletown, DE

Resident

Valid for Private work only

DARRELL LEWIS HOME MAINTENANCE

Certificate No. DE-2023-000008279

Trade Name (DBA): Lewis Built

Valid until: 07/18/2025

NAICS Code(s): 238320, 238330, 238350

Lewes, DE

Resident

Valid for Private work only

George F. Lang Co.

Certificate No. DE-2024-000011096

Trade Name (DBA): Lang Carpet

Valid until: 08/30/2025

NAICS Code(s): 44

Wilmington, DE

Non-Resident

Valid for Private work only

JONAS MILLER, LLC

Certificate No. DE-2025-000011788

Trade Name (DBA): LONGHORN BUILDERS

Valid until: 01/07/2026

NAICS Code(s): 236220

Wyoming, DE

Resident

Valid for Private work only

K DOUGLAS LEATHERMAN

Certificate No. DE-2023-000007737

Trade Name (DBA): Leatherman Electric

Valid until: 03/22/2027

NAICS Code(s): 238210

Greenwood, DE

Resident

Valid for Private work only

L & L Carpet Discount Centers, Inc.

Certificate No. DE-2021-000002977

Trade Name (DBA): The L & L Company

Valid until: 09/02/2025

NAICS Code(s): 238330

Manassas, VA

Non-Resident

Valid for Private work only

L & L ENTERPRISES INC

Certificate No. DE-2022-000005398

Valid until: 05/23/2026

NAICS Code(s): 238990

Owings, MD

Non-Resident

Valid for both Private and Public Work

L & L GEOTHERMAL HVAC SVCS LLC

Certificate No. DE-2022-000004573

Valid until: 01/26/2026

NAICS Code(s): 238220

Laurel, DE

Resident

Valid for both Private and Public Work

L & L RESTORATION LLC

Certificate No. DE-2023-000007341

Trade Name (DBA): L&L Restoration/ Stone Masonry LLC

Valid until: 01/12/2027

NAICS Code(s): 238140

Parkesburg, PA

Non-Resident

Valid for Private work only

L C O CONSTRUCTION LLC

Certificate No. DE-2024-000011102

Valid until: 08/28/2025

NAICS Code(s): 238170

Georgetown, DE

Resident

Valid for Private work only

L F DRISCOLL CO LLC

Certificate No. DE-2022-000006663

Valid until: 09/12/2026

NAICS Code(s): 236220

Bala Cynwyd, PA

Non-Resident

Valid for Private work only

L F SYSTEMS CORP

Certificate No. DE-2023-000008459

Valid until: 08/03/2026

NAICS Code(s): 238390

New Castle, DE

Resident

Valid for both Private and Public Work

L H EXCAVATING INC

Certificate No. DE-2024-000011702

Valid until: 12/18/2025

NAICS Code(s): 238910

Frankford, DE

Resident

Valid for Private work only

L J PAOLELLA CONSTRUCTION INC

Certificate No. DE-2022-000007090

Valid until: 11/21/2026

NAICS Code(s): 236220

Brookhaven, PA

Non-Resident

Valid for both Private and Public Work

L L HEATING & EQUIPMENT CO INC

Certificate No. DE-2021-000002244

Valid until: 08/04/2025

NAICS Code(s): 238220

Southampton, PA

Non-Resident

Valid for Private work only

L. WILSON MASONRY INC

Certificate No. DE-2021-000000785

Valid until: 07/14/2026

NAICS Code(s): 238140

Harrington, DE

Resident

Valid for both Private and Public Work

L&A CONTRACTING LLC

Certificate No. DE-2024-000011643

Valid until: 12/09/2025

NAICS Code(s): 238130, 238310, 238320, 238330, 238350

Bear, DE

Resident

Valid for Private work only

Disclaimer

Contractors listed on this Public Lookup are contractors who have properly registered and have been considered compliant with laws of the State of Delaware's Department of Labor. If a contractor is not on this registry, they either have not submitted an application to the Department to review at this time, or they have been removed. If a contractor was previously listed as compliant on this site and is no longer listed, it means either the contractor may have not reregistered their application, their application is currently being reviewed, or the contractor may have been suspended and/or their certificate has been revoked from the Registry by the Department. If you are seeking to know whether a contractor not listed on this site is compliant, you may call the Department at 302-430-7739 for the status of the contractor.