Trades licensed
14 / 20
70% coverage
Open-data reference. 14 of 20 construction trades require a state-issued license in Delaware. Cross-checked against the Delaware Division of Revenue, refreshed as new data lands.
By licensing status
Contractor Licensing Requirements
Trades licensed
14 / 20
70% coverage
Exam mandates
3
of 14 licensed trades
Bond mandates
1
of 14 licensed trades
CE mandates
3
of 14 licensed trades
14 of 20 tracked construction trades require a state-issued Delaware license.
Board Name
Delaware Division of Revenue
14 of 20 tracked trades require a license in Delaware. Click any trade name to see full requirements details.
| Trade | License | Exam | Bond | Insurance |
|---|---|---|---|---|
| Carpenter | ✓ | No | No | Yes |
| Demolition | ✓ | No | Yes | Yes |
| Electrician | ✓ | Yes | No | Yes |
| Elevator Mechanic | — | — | — | — |
| Excavation | ✓ | No | No | Yes |
| Fire Protection | — | — | — | — |
| Flooring Installer | ✓ | No | No | Yes |
| General Contractor | ✓ | No | No | Yes |
| Glazier | ✓ | No | No | Yes |
| HVAC Technician | — | — | — | — |
| Insulation Installer | ✓ | No | No | Yes |
| Landscaper | ✓ | No | No | Yes |
| Mason | ✓ | No | No | Yes |
| Painter | ✓ | No | No | Yes |
| Pest Control | ✓ | Yes | No | Yes |
| Plumber | ✓ | Yes | No | Yes |
| Pool Contractor | — | — | — | — |
| Roofer | — | — | — | — |
| Solar Installer | — | — | — | — |
| Tile Setter | ✓ | No | No | Yes |
Carpentry Contractor License
License fee: $50-$200
Demolition Contractor License
License fee: $100-$300
Electrical Contractor/Master Electrician License
License fee: $50-$200
State-licensed in virtually all states. Journeyman to master pathway.
Excavation Contractor License
License fee: $50-$200
Flooring Contractor License
License fee: $50-$200
General Business License + Contractor
License fee: $75-$200
Business license + liability insurance.
Glazing Contractor License
License fee: $50-$200
Insulation Contractor License
License fee: $50-$200
Landscape Contractor License
License fee: $50-$200
Masonry Contractor License
License fee: $50-$200
Painting Contractor License
License fee: $50-$200
Pesticide Applicator License
License fee: $75-$250
Licensed in all 50 states + DC. EPA 7 categories: general pest, termite, fumigation, etc.
Master Plumber License
License fee: $50-$250
Journeyman to master pathway. Some states also require contractor registration.
Tile Contractor License
License fee: $50-$200
Delaware licenses 14 of 20 tracked trades (70% coverage), administered through Delaware Division of Revenue. Ranks #34 nationally on strictness (4/10 composite).
Among Delaware's licensed trades, 3 require a state exam, 1 a surety bond, 14 minimum liability insurance, and 3 ongoing continuing-education hours . That points to insurance-focused regulation (14/14 need liability minimums). Methodology & verification →
Delaware sits at #34 of 51 ranked states (4.0/10 strictness composite) — that's the 34th percentile, below the U.S. median of 5.5. The state directly above is VT at 4.3/10 (gap: 0.3 pp). The next state down is ND at 3.8/10.
National extremes: CA is strictest at 9.5/10, WY is loosest at 0.8/10. Delaware's lighter rank reflects 14 state-licensed trades, contrasted against states that delegate most regulation to municipalities.
Source: National Conference of State Legislatures (NCSL) Contractor Licensing Tracker + state licensing board public records Delaware contractor licensing requirements (trade-by-trade) + national strictness composite · 2026 State licensing boards update requirements rotationally; PlainHireCheck cross-references NCSL aggregated data with each state board's public roster. Strictness composite weights license breadth, exam mandates, bond size, insurance floors, and continuing-education obligations.
A licensed contractor has met state-specific requirements including education, experience, exams, and background checks. They carry required insurance and bonds. An unlicensed contractor has met none of these requirements. Hiring an unlicensed contractor may void your homeowner's insurance, expose you to liability if a worker is injured, and leave you with no legal recourse for defective work.
No. A license means the contractor met minimum standards at the time of licensing. Always check reviews, ask for references, and see past project photos. However, a licensed contractor provides legal protections that an unlicensed contractor does not.
A contractor bond (surety bond) is a three-party agreement between the contractor, a bonding company, and you. If the contractor fails to complete a job or causes damage, you can make a claim against the bond. Bonds typically have limits ($5K-$100K) — they are a baseline protection, not comprehensive coverage.
General liability insurance covers property damage and bodily injury caused by the contractor. Always ask for a Certificate of Insurance showing at least $500,000-$1,000,000 in general liability coverage.
Workers' compensation covers contractors and their employees if injured on your property. Without it, an injured worker could potentially sue you as the property owner. Always verify workers' comp coverage before work begins.
The risks are significant: work may not pass inspection, homeowner's insurance may deny claims, you could be liable for injuries, and you have limited legal recourse. Where contractor licensing is required by law, hiring unlicensed is also illegal.
Always Verify a License Before Hiring
Before signing any contract, verify the contractor's license on your state licensing board website. License lookup tools are free and take less than a minute. Never accept a license number without verifying it yourself.
Get At Least Three Written Bids
Always get at least three written bids for any project over $1,000. Bids should be itemized and specify materials, labor, timeline, and payment schedule. Beware of bids significantly lower than others.
Check Insurance Separately from Licensing
A contractor can be licensed but uninsured. Ask for a Certificate of Insurance (COI) naming you as additional insured. Verify it is current by calling the insurer. Both general liability and workers' compensation are important.
Never Pay More Than 10-30% Upfront
Be cautious of contractors demanding large upfront payments. A typical schedule: 10-30% down, incremental payments as work progresses, and 5-10% retained until completion and inspection.
Disclaimer: This data is for informational purposes only. Requirements change — always verify directly with Delaware Division of Revenue before hiring.
Read our methodology — how this data is sourced, computed, and verified.
| Publisher | Kiznis Studio |
| Sources | Public state contractor licensing board records |