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Applicable Delaware Statutory Requirements

Delaware Division of Revenue Contractor License Mandate

SRC-DE-30-2501

Every 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.

Locator: 30 Del. C. § 2501

Non-resident Contractor Bonding Requirement

SRC-DE-30-375

Nonresident 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.

Locator: 30 Del. C. § 375

County and Municipal Building Permitting

SRC-DE-NCC-CODE

Building, roofing, structural remodels, and addition permits must be obtained from local county departments (New Castle, Kent, Sussex) or incorporated municipal departments (e.g., City of Wilmington) prior to starting construction.

Locator: NCC Code ch. 6

Verification Sources

SRC-DE-24-1400statute
Delaware Board of Electrical Examiners — Division of Professional Regulation
24 Del. C. ch. 14 — Electrical Contractors and Electricians
https://delcode.delaware.gov/title24/c014/index.html
verified 2026-10-12retrieved 2026-10-12
SRC-DE-24-1800statute
Delaware Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners
24 Del. C. ch. 18 — Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners
https://delcode.delaware.gov/title24/c018/index.html
verified 2026-10-12retrieved 2026-10-12
SRC-DE-30-375statute
Delaware Division of Revenue — Department of Finance
30 Del. C. § 375 — Nonresident Contractor Bonding Requirement
https://delcode.delaware.gov/title30/c003/index.html#375
verified 2026-10-12retrieved 2026-10-12
SRC-DE-30-2501statute
Delaware Division of Revenue — Department of Finance
30 Del. C. § 2501 — Contractor License Definition and Requirements
https://delcode.delaware.gov/title30/c025/index.html
verified 2026-10-12retrieved 2026-10-12
SRC-DE-DOR-PORTALboard page
Delaware Division of Revenue — Department of Finance
Delaware One Stop Business Licensing Portal (revenue.delaware.gov)
https://onestop.delaware.gov/
verified 2026-10-12retrieved 2026-10-12
SRC-DE-DPR-ELECregulation
Delaware Board of Electrical Examiners — Division of Professional Regulation
24 DE Admin. Code 1400 — Rules and Regulations of the Board of Electrical Examiners
https://regulations.delaware.gov/AdminCode/title24/1400.shtml
verified 2026-10-12retrieved 2026-10-12
SRC-DE-DPR-PLUMBregulation
Delaware Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners
24 DE Admin. Code 1800 — Rules of the Board of Plumbing, HVAC and Refrigeration Examiners
https://regulations.delaware.gov/AdminCode/title24/1800.shtml
verified 2026-10-12retrieved 2026-10-12
SRC-DE-NCC-CODEstatute
New Castle County Department of Land Use — Contractor Licensing & Building Permitting
New Castle County Building Code Chapter 6 — Contractor Licensing & Permitting
https://www.newcastlede.gov/176/Contractor-Licensing
verified 2026-10-12retrieved 2026-10-12