Delaware Radon Gas Testing & Sub-Slab Depressurization Contractor

Yes. In Delaware, performing radon mitigation contracting work requires regulatory approval overseen by the Delaware Division of Professional Regulation. Operating without proper credentials can subject contractors to stop-work orders, administrative citations, and fines.

While specific municipal requirements can exceed state minimums, contractors typically must carry at least $1,000,000 Each Occurrence / $2,000,000 General Aggregate. General liability coverage protects your business against third-party bodily injury, property damage, and completed operations claims during and after construction.

The statutory bond requirement in Delaware is generally $5,000 - $20,000 (Non-resident contractor bonding requirement). With good credit (scores above 680), an annual surety bond premium typically costs between $100 and $150 per year (1% to 2% of total bond penalty value). Contractors with lower credit scores can expect rates between $180 and $250 annually.

Mandatory for all employers with 1+ employees. Regardless of state minimum thresholds, commercial project owners, general contractors, and municipal permitting offices almost always mandate a valid Certificate of Insurance (COI) listing workers' comp before releasing jobsite access.

Delaware currently maintains reciprocal licensing or exam waiver agreements with: MD, PA. Qualifying out-of-state contractors in good standing may apply to waive the trade examination portion of the license application.