Licensed contractors in Delaware: what we cover
Last refreshed: October 21, 2026
Covered. 1,715 active license records from the Delaware Professional and Occupational Licensing (data.delaware.gov).
- Trades: HVAC, plumbing, electrical
- Source: Delaware Professional and Occupational Licensing (data.delaware.gov)
- Verify any license: Delaware official license lookup
- Refreshed: weekly (last run October 21, 2026)
Caveats: Delaware's file lists individual master licensees (Master Plumber, Master HVACR, Master Electrician), not businesses. No phone numbers. We show city, ZIP and phone (when the state lists one) but never street addresses.