Delaware Contractor License Requirements
Indexation gate: passedDelaware pairs mandatory statewide tax registration with occupational licensing for mechanical trades. There is no statewide general contractor board: prime contractors register with the Delaware Division of Revenue ($75 annual base license), post a 6% surety bond if non-resident, and obtain local county registrations (such as New Castle County Department of Land Use) to pull building permits. Electrical, plumbing, and HVACR trades are strictly licensed statewide by the Division of Professional Regulation.
1. Statewide Division of Revenue Contractor License (30 Del. C. § 2501)
Under Delaware law, every person or entity engaging in contracting work must obtain an official contractor license from the Delaware Division of Revenue prior to bidding, advertising, or commencing construction:
State Contractor Tax License
SRC-DE-30-2501Every person or entity engaging in business as a contractor in Delaware must obtain a contractor business license from the Delaware Division of Revenue prior to bidding, advertising, or commencing work under 30 Del. C. § 2501.
- Base Annual Fee: $75 per year.
- Gross Receipts Tax: Contractors are subject to state gross receipts tax under 30 Del. C. § 2502.
- One Stop Portal: Applications are filed online via Delaware One Stop (onestop.delaware.gov).
Non-resident Contractor Bonding (30 Del. C. § 375)
SRC-DE-30-375Nonresident contractors performing contracts in Delaware must furnish a surety bond equal to 6% of the contract amount or provide a blanket bond of not less than $20,000 under 30 Del. C. § 375.
Out-of-state contractors must furnish a surety bond equal to 6% of the contract amount for each project or post a blanket surety bond of at least $20,000 to guarantee payment of taxes and withholding.
2. Division of Professional Regulation (DPR) Trade Boards
Statewide occupational trade boards under the Department of State regulate high-risk mechanical systems. No municipal or county jurisdiction can waive these state requirements:
Board of Electrical Examiners (24 Del. C. ch. 14)
SRC-DE-24-1400No person shall engage in or supervise the installation, alteration, or repair of electrical wiring or equipment in Delaware without a valid license from the Board of Electrical Examiners under 24 Del. C. ch. 14.
- Master Electrician: Requires 6 years (12,000 hours) verified experience or an engineering degree plus 2 years experience.
- Exam: Prometric statewide examination.
- Insurance: Minimum $300,000 general liability insurance.
- Renewal: Biennial (even years) with 10 hours continuing education.
Board of Plumbing, HVAC & Refrigeration Examiners (24 Del. C. ch. 18)
SRC-DE-24-1800Plumbing installations, alterations, and repairs across Delaware require supervision and permits pulled by a licensed Master Plumber under 24 Del. C. ch. 18.
- Master Plumber: Requires 7 years trade experience or 4-year apprenticeship plus 3 journeyman years.
- Master HVACR: Requires 7 years experience under licensed master.
- Insurance: Minimum $300,000 general liability insurance.
- Renewal: Biennial (even years).
3. County Permitting & Absence of Statewide General Contractor Board
Local County & Municipal Licensing
SRC-DE-30-2501Delaware has NO statewide general contractor licensing board or statewide home improvement contractor board. General construction and remodelers operate under state DOR tax licenses and local county/municipal building department registrations.
Delaware does not issue a statewide general contractor license. General builders, roofers, and home remodelers must obtain county registrations to pull building permits:
- New Castle County: Department of Land Use requires contractor licensing and proof of insurance before issuing building permits.
- Kent County: Inspections and Enforcement division regulates residential and commercial permits.
- Sussex County: Assessment and Building Code division governs coastal and county permits.
- City of Wilmington: Department of Licenses and Inspections issues municipal trade and building licenses.
4. Delaware Project Compliance Guides
Specific regulatory paths for common construction scopes in Delaware:
Minor Work & Handyman
State revenue licensing thresholds, absence of handyman license, and trade restrictions.
Roof Replacement
Division of Revenue license and county building department permit requirements.
Electrical Wiring
Statewide Board of Electrical Examiners Master Electrician mandate.
Plumbing Installation
Master Plumber licensing under 24 Del. C. ch. 18 and inspection procedures.
5. Statutory Seams & Clarifications
Delaware Division of Revenue licenses contractors across the state for tax purposes ($75 base license).
30 Del. C. § 2501 — Contractor License Definition and RequirementsCounty Land Use department requires separate county contractor registration and examination/proof of insurance before issuing permits.
New Castle County Building Code Chapter 6 — Contractor Licensing & Permittingdocumented
Analysis notes
Resolved: Delaware has no statewide technical GC board; state DOR license is mandatory statewide for revenue/tax compliance, while county/city licenses regulate physical building permits and trade competency for general builders.
6. Official Statutory & Administrative Sources
Primary legal and administrative corpus verified for Delaware: