How to Check a Contractor's License in Delaware

Delaware does not require a statewide general contractor license. If you're hiring someone to build a deck, remodel your kitchen, or handle a general construction project, there is no state-level license to look up. That catches a lot of homeowners off guard, especially if they're coming from a state like California or Florida where contractor licensing is heavily regulated.

That said, Delaware is not a free-for-all. Specialty trades like HVAC, electrical, and plumbing are licensed through the Division of Professional Regulation. And many cities and counties have their own local contractor registration requirements. This guide covers what actually exists, where to check it, and how to protect yourself when hiring in a state without a general license.

Does Delaware require a contractor license?

Delaware does not have a statewide general contractor license. Anyone can legally perform general construction work in the state without holding a state credential. However, specialty trades—electrical, plumbing, and HVAC—are licensed through the Division of Professional Regulation, and local municipalities like Wilmington may require their own contractor registration.

Delaware is one of a handful of states that simply doesn't regulate general contracting at the state level. There's no exam, no bond requirement, and no statewide registration for someone who wants to call themselves a general contractor and start taking on projects.

This means you cannot go to a state website and look up whether your general contractor is "licensed." The concept doesn't exist in Delaware law for general construction work. A contractor can legally operate in the state without holding any state credential, as long as they aren't doing specialty trade work that falls under regulated categories.

The practical effect is that the burden of vetting a general contractor falls more heavily on you as the homeowner. Without a state licensing board enforcing minimum standards, there's no government-run screening process filtering out unqualified operators before they reach your doorstep.

Which specialty trades are licensed in Delaware?

Delaware licenses electricians, plumbers, and HVAC technicians through the Division of Professional Regulation. If your project involves any of these trades, the person doing the work must hold an active state license—a general contractor without the relevant trade license cannot legally perform that specialty work.

While general contracting flies under the radar, Delaware does regulate several specialty trades through the Division of Professional Regulation (DPR). If your project involves any of the following trades, the person doing that work must hold an active state license:

• Electricians. Delaware licenses electricians through the Board of Electrical Examiners. This includes master electricians, journeyman electricians, and limited electricians. Any electrical work beyond the most basic tasks requires a licensed professional.
• Plumbers.Licensed through the Delaware Board of Plumbing, Heating, Cooling, Refrigeration, and Ventilation Examiners. Master plumbers, journeyman plumbers, and apprentice plumbers all fall under this board's oversight.
• HVAC technicians. Heating, ventilation, air conditioning, and refrigeration work is regulated by the same board that handles plumbing. Contractors need specific HVAC credentials to perform this work legally.
• Manufactured home installers. If your project involves installing or setting up a manufactured home, the installer must be licensed by the state.

These are the trades where you actually have something to verify at the state level. If a general contractor tells you they'll handle the electrical or plumbing themselves, confirm they hold the appropriate trade license. A general contractor without a plumbing or electrical license cannot legally do that work, even in a state without general contractor licensing.

How do I look up a contractor license in Delaware?

Use the Delaware Professional Regulation online lookup tool at delpros.delaware.gov to verify electricians, plumbers, and HVAC technicians. Select the relevant board from the dropdown, then search by name or license number. The results show license status, type, and expiration date. You can also call the DPR directly at (302) 744-4500.

The DPR maintains an online license verification tool that covers all professions the division regulates, including electricians, plumbers, and HVAC technicians. Here's how to use it:

1. Go to the Delaware Professional Regulation license verification page.
2. Select the profession type from the dropdown. Choose the relevant board — for example, "Electrical Examiners" for electricians or "Plumbing, Heating, Cooling, Refrigeration & Ventilation" for plumbers and HVAC technicians.
3. Enter the contractor's name or license number. If you have the license number, that's the most reliable search method. If not, try the last name and first name fields.
4. Review the results for license status, license type, and expiration date. An active license with a future expiration date means they're currently authorized to work.

If the search doesn't return results, try variations of the name. Some contractors register under their legal name rather than the name on their business card. You can also call the DPR directly at (302) 744-4500 to verify a license over the phone.

Do Delaware cities have their own contractor requirements?

Yes. Wilmington, Dover, New Castle County, and Sussex County all have local building permit and contractor registration requirements that apply even though there is no statewide general contractor license. Always check with the local building department where your project is located before work begins.

Even though Delaware skips statewide general contractor licensing, several municipalities and counties have their own requirements. Depending on where your project is located, your contractor may need a local business license, registration, or permit to operate.

• Wilmington. The City of Wilmington requires contractors to obtain a city business license. The Department of Licenses and Inspections handles contractor-related permits and can confirm whether a contractor is registered to work in the city.
• Dover. Dover has its own building permit requirements and may require contractors to register with the city before pulling permits for work within city limits.
• New Castle County. The county has building code enforcement and permit requirements. Contractors working in unincorporated areas of the county need to comply with county-level regulations.
• Sussex County.Building permits are required for most construction projects in Sussex County, and contractors need to work with the county's building code department.

The point is that "no state license" doesn't mean "no requirements." Your contractor still needs to pull the right local permits and comply with local building codes. A contractor who tells you permits aren't necessary is either misinformed or trying to cut corners — neither is a good sign.

What should I check when hiring a contractor in Delaware?

Without a state license to verify, focus on four things: confirm the business is registered with the Delaware Division of Corporations, verify general liability and workers' compensation insurance directly with the carrier, check references from recent projects, and get a written contract covering scope, payment schedule, and warranty. According to the FTC, unlicensed contractor fraud costs consumers hundreds of millions of dollars annually.

In states without general contractor licensing, you need to do more homework on your own. Here's what to verify before hiring a general contractor in Delaware:

• Business registration. Every business operating in Delaware needs to register with the Delaware Division of Corporations. Search for the contractor's business name to confirm they're a legitimate registered entity. This isn't a contractor license, but it tells you the business legally exists in the state.
• Insurance.Ask for a certificate of general liability insurance and workers' compensation insurance. This is arguably the most important verification step in a state without contractor licensing. Call the insurance company directly to confirm the policy is active — don't just accept a photocopy of a certificate.
• Bonding.While Delaware doesn't require a statewide contractor bond, some municipalities do. Even where it's not required, a contractor who carries a surety bond is providing an extra layer of financial protection.
• References and past work. Without a licensing board that tracks complaints and disciplinary actions, your best source of contractor quality information is past customers. Ask for at least three recent references and actually call them.
• Written contracts. Delaware law provides some protections for homeowners through contract requirements. Get everything in writing: scope of work, payment schedule, timeline, and warranty terms. A contractor who resists putting terms in writing is a contractor you should walk away from.

How do I verify subcontractors doing specialty work in Delaware?

Ask your general contractor for the names and license numbers of any electricians, plumbers, or HVAC subcontractors on the project, then look each one up through the DPR license verification tool. Confirm the license is active, that the license type matches the work being done, and that the expiration date covers your project timeline.

Even when you hire a general contractor for a larger project, the specialty trade work is usually handled by subcontractors. In Delaware, this is where the actual licensing verification matters most.

Ask your general contractor who will be handling the electrical, plumbing, and HVAC work. Get the names and license numbers of those subcontractors and verify each one through the DPR license verification tool. A responsible general contractor will provide this information without hesitation. If they push back or say they handle everything themselves without holding trade licenses, that's a problem.

When you pull up a subcontractor's license record, check the same things you would for any licensed professional:

• License status is active.Not expired, not suspended, not revoked. Active means they're currently authorized to work.
• License type matches the work. A journeyman electrician can do electrical work under supervision, but only a master electrician can pull permits and oversee jobs independently. Make sure the license level is appropriate for the work being done.
• Expiration date is in the future. Licenses expire on specific dates. Verify the credential will still be active for the duration of your project.
• No disciplinary actions. The DPR tracks enforcement actions against licensees. Check for any history of sanctions, fines, or license restrictions.

How do I file a complaint against a contractor in Delaware?

For licensed specialty trade contractors, file a complaint with the Division of Professional Regulation, which can investigate and revoke licenses. For unlicensed general contractors, contact the Delaware Department of Justice Consumer Protection Unit or pursue the matter through civil court. The absence of a general contractor license board limits your formal recourse options.

If something goes wrong with a licensed specialty trade contractor, you can file a complaint with the DPR. The division has the authority to investigate complaints and take disciplinary action against licensees, including suspending or revoking their license.

For complaints against general contractors who aren't subject to state licensing, your options are more limited. You can file a complaint with the Delaware Department of Justice Consumer Protection Unit if you believe you've been the victim of fraud or deceptive business practices. You can also pursue the matter through civil court or contact your local municipality if the contractor violated local registration or permit requirements.

This is one of the real downsides of a state without general contractor licensing. When things go wrong with an unlicensed trade, there's no licensing board to file a complaint with, no guaranty fund to tap into, and no streamlined enforcement mechanism. Your recourse is essentially the general legal system, which is slower and more expensive.

The bottom line

Delaware's lack of a statewide general contractor license means there's no single database where you can verify that your contractor is qualified and authorized to work. For specialty trades like electrical, plumbing, and HVAC, you can and should verify licenses through the Division of Professional Regulation's online lookup tool. For general contractors, you're relying on business registration checks, insurance verification, references, and local permit compliance to separate the reliable operators from the fly-by-night ones.

The extra due diligence is worth the effort. In a state without licensing protections for general contracting, the verification steps you skip are the protections you lose. Check the insurance, confirm the business registration, verify the specialty trade licenses, and get everything in a written contract before any work begins.