What Are Delaware's Contractor Licensing Rules?

Is a contractor license required in Delaware?

Yes, but not as a competency credential — every contractor doing business in Delaware needs a state business license, which is a tax registration tied to a gross-receipts fee rather than a license backed by any exam or experience requirement. There's no separate statewide general contractor or home improvement competency license, and no separate statewide roofing license either — roofing work falls under the same business license as any other contracting. Electrical, plumbing, and HVACR (heating, ventilation, air conditioning, and refrigeration) are genuinely different: all three are real, exam-based statewide professional licenses administered by the Division of Professional Regulation (DPR). But each licenses individuals only — Delaware has no equivalent of a separate electrical, plumbing, or HVACR contractor's license that a business itself holds.

Which agency regulates it?

Two separate agencies split this work. The Division of Revenue, under the Department of Finance, administers the contractor business license. DPR houses two separate boards for the licensed trades: the Board of Electrical Examiners, and a combined Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners that covers both plumbing and HVACR under one board — unlike most states in this project, which license plumbing and HVAC through entirely separate bodies.

Where can you find the actual laws?

The contractor business license sits across two Title 30 chapters: Chapter 21 sets the general rules that apply to every licensed business in the state — the basic license requirement is § 2101, license display is § 2109, nontransferability is § 2106, and enforcement is §§ 2118-2119 — while Chapter 25 is contractor-specific, setting the $75 fee and gross-receipts rate at § 2502 and the resident/nonresident distinction at § 2501. Electrical licensing is Title 24, Chapter 14 — license classifications are § 1408, and the penalty for unlicensed work is § 1424. Plumbing is Title 24, Chapter 18, Subchapter II — the license requirement, employment-based supervision exemption, and penalty are all in § 1807. HVACR is the same chapter's Subchapter III, with its parallel provisions in § 1820. The Division of Revenue and DPR each publish their own current licensing instructions directly.

What does it take to get licensed?

The contractor business license costs $75 initially, renews annually, and carries an ongoing gross- receipts fee of roughly 0.6472% of a contractor's receipts — no trade exam, no apprenticeship, no master-level credential required. Electrical licensing runs several tiers: a master electrician generally needs six years of full-time supervised experience (or four years under a master plus two years of technical training), a limited electrician needs three years, and a journeyperson generally needs 8,000 hours of supervised experience — master, limited, and specialty applicants also need to show at least $300,000 in general liability coverage, which an employer's policy can satisfy if it names the applicant. Plumbing requires either an approved apprenticeship followed by qualifying supervised experience, or a longer supervised-experience path without one, with a $173 application fee. HVACR mirrors that structure — an apprenticeship certificate plus two years of supervised experience, or seven years without one plus a bypass exam — also at $173, with a 70% passing score required and EPA refrigerant certification needed for relevant refrigeration and air-conditioning work.

What are the penalties for operating without a license?

Operating without the state business license is itself a real criminal exposure: under § 2119, it carries the license fees owed plus a fine of up to $3,000, up to two years in prison, or both, and § 2109 separately fines up to $100 for failing to display the license. Electrical work without a license is a misdemeanor under § 1424 — $500 to $1,500 for a first offense, $1,500 to $2,300 for a subsequent one, with Justice of the Peace Courts holding jurisdiction. Plumbing and HVACR share an identical, harsher civil penalty structure under §§ 1807(d) and 1820(d) respectively: $1,500 to $3,000 for a first offense and $3,000 to $6,000 for a subsequent one. No general statewide consumer recovery fund was confirmed for any of these programs.

Does Delaware have reciprocity with other states?

Real, and built on a substantial-equivalence classification rather than a simple yes/no list. For electrical, the Board treats Maryland and New Jersey licenses as substantially similar and requires additional experience from applicants licensed in a longer list of other states (including Maine, New Hampshire, and Vermont among others), with every other jurisdiction evaluated individually. Plumbing and HVACR share the same classification structure under §§ 1810 and 1823 respectively — Connecticut, Iowa, and Maryland are treated as substantially similar, while a separate list of states requires seven years of post-licensure practice before a Delaware license issues. Either way, reciprocity in Delaware is a pathway to a Delaware license, not permission to practice on an out-of-state credential alone.

Is it legal to rent or lease a license in Delaware?

This is where Delaware is genuinely distinct from every other state in this project so far. The contractor business license has no qualifying individual at all — it's a tax registration a business gets in its own name, and § 2106 expressly makes it nontransferable, so one company can't operate under another's license. Electrical, plumbing, and HVACR don't have a separate business-entity license with a designated qualifier either — unlike New Hampshire's or Rhode Island's contractor-license models, there's no statutory concept of an "electrical contractor," "plumbing contractor," or "HVACR contractor" license that a company itself holds. What plumbing and HVACR do have is a real, specific employment pathway: §§ 1807(c)(1) and 1820(c)(1) let an apprentice, journeyperson, or mechanic do licensed work under a master who is either their direct employer or "employed full time by the same business entity" as they are — meaning a separately owned plumbing or HVACR company can genuinely employ a licensed master to supervise its workforce, without that master owning the business. Electrical doesn't have that same explicit statutory language, though a master electrician can similarly supervise other licensed workers within their own or an employer's business. None of these statutes was found to cap a master to one business at a time, but all require a genuine, full-time employment relationship and real supervision — not a license number attached to a company for a fee.

How do you find a qualifier or a business in Delaware?

findQualifier.com is a public, searchable board of licensed professionals advertising their availability to work as a qualifier, by state and trade. Browse available qualifiers in Delaware, browse Delaware businesses looking to hire, or post a listing.