Contractor License EZ Guide

The type of contractor license you need depends on your roles and responsibility on a project in unincorporated New Castle County.

Before applying for a NCC contractor license, you must have a valid Delaware Division of Revenue business license in the category of Contractor Resident or Non-Resident.  The Division of Revenue can be reached at www.revenue.delaware.gov or 302-577-8778.

What type of Contractor License do I need? New Castle County offers two license types: Permit endorsed license and a Non-Permit endorsed license.

  • Non-Permit endorsed licenses are valid to perform construction activity defined by Sector 23 of the North American Industry Classification System (NAICS) code that does not require a permit from our jurisdiction or fall under HVACR and plumbing work requiring separate licensing.
  • Permit endorsed licenses may be obtained for building and utility work.  There are different license categories based on the work to be performed in each area.

Building Contractor License with Permit Endorsement covers both residential and non-residential work.  The license types include:

  • Class U – perform work on projects with unlimited valuation.
  • Class A – perform work on projects that have a $200,000 maximum value per job.
  • Class B – perform work on projects that have a $100,000 maximum value per job.
  • Class C - perform work on projects that have a $50,000 maximum value per job.

Utility Contractor License with Permit Endorsement covers all utility work defined by the Delaware Division of Professional Regulation and NCC Building Code.  HVACR and Plumbing contractors may only apply for and obtain NCC licenses for the trade defined on their State HVACR and/or Plumbing license.  The license types include:

  • Mechanical – license categories must match the License Holder’s State HVACR license, including defined restrictions.
  • Plumbing – must have a State plumber’s license of the same trade.
  • Decorative appliance – for contractors without a Mechanical license performing work in the area of decorative appliance installation and repair.  License holder must present proof of certification in the area of gas burning hearth systems and/or solid fuel burning hearth systems.
  • Sanitary Sewer – for contractors without a Plumber license performing work in the area of sewer and drain cleaning.  License holder must have equipment approval letter for the NCC Department of Special Services.
  • Outside Utility Connector – for contractors without a Plumber installing building sewers to building drains or water service pipes to water distribution systems.  License holder must obtain a Qualification Letter from NCC Department of Special Services.

How to apply for or renew a contractor license.

Non-Permit endorsed contractors –

Permit endorsed contractors –

The permit endorsed license applications require the submission of documents and may not be applied for online.  A summary of license requirements is defined below and you may download the License Packet for further details and forms.

1.  Complete the contractor license application form – select Building Contractor application or Utility Contractor application.  The application must be signed by the owner or company principal.  Additionally, utility applicants require the signature of the license holder and first-time applicants must apply in person.
2.  Provide a copy of your State of Delaware Business License from the DE Division of Revenue in the category of Contractor Resident or Non-Resident.  The Division of Revenue can be reached at www.revenue.delaware.gov or 302-577-8778.
3.  Provide valid Certificate of Liability Insurance form with NCC as the certificate holder and the minimum coverage defined in the License Packet.  The Certificate shall read:  NCC Department of Land Use, License Processing, 87 Reads Way, New Castle DE 19720.
4.  Statutory Compliance Bond for the license year - This bond must be on the NCC bond form and include the principal or license holder’s signature and the Power of Attorney form from the surety agency.  NCC does not accept continuation certificates.

The following items may be required and are dependent upon the type of work performed by the contractor.

5. Authorized Agent Form – This optional form identifies all representatives that are authorized to act on behalf of a licensed contractor other than the principal or license holder.  It is required to be updated annually.

6. New Home Builders Warranty – Contractors permitting new homes are required to provide a New Home Warranty.  Please provide the current enrollment letter from a NCC approved warranty company.

7. State of Delaware Trade License for HVACR and Plumbing Contractors – all HVACR and Plumbing contractors are required to provide a copy of their current DE Division of Professional Regulation wall size license.  This license will define the trade categories a license holder is authorized to perform work under in the State of Delaware.
8.  Specialty Trade Requirements – contractors applying for utility licenses that do not hold a DE Division of Professional Regulation license may require the following at time of application:
A.  Decorative Appliance Contractor - License holder must present proof of certification in the area of gas burning hearth systems and/or solid fuel burning hearth systems.  NCC provides for both gas and/or solid fuel trades based on your certifications.

B.  Sewer and Drain Cleaners - License holder must have equipment approval letter for the NCC Department of Special Services.

C. Outside Utility Contractor - License holder must obtain a Qualification Letter from NCC Special Services.

9. Code Book Requirement – all contractors are required to obtain the current NCC Building Code and the applicable adopted code.  At time of application for new and renewal licenses, the contractor must purchase the adopted code for their trade or provide documentation that they have previously obtained a copy.

10. Fees – all License and Code Book fees are due at time of application.  Applicable fees are defined on the license applications and in the Contractor License Packet.

Application Documents