Solar and energy efficiency license in Delaware
Who licenses it
Checked November 8, 2026. Rules and thresholds change; confirm with the board before you start work.
Homeowners: checking a pro
Ask for the license number, then look it up on the board's site above. On ExpertMarketplace every listing in this trade in Delaware shows the number and whether we've checked it.
Pros: listing on ExpertMarketplace
Add your license number, state and expiry date when you create your page. A listing in this trade in Delaware can't go live without it. Add your insurance too: listings show "Insured" or "No insurance on file" to every visitor.
Create my free pageSolar and energy efficiency in Delaware's biggest cities
WilmingtonDoverNewarkMiddletownBearBrooksideGlasgowHockessinSmyrnaPike Creek ValleyMilfordClaymontNorth StarPike CreekWilmington ManorSeafordGeorgetownElsmereEdgemoorNew CastleMillsboroLaurelHarringtonCamdenHighland AcresDover Base HousingRising Sun-LebanonClaytonLewesMilton