Verify an HVAC contractor licence in Delaware

Check an HVAC contractor's licence in Delaware by number or by business name and get one normalized JSON record back, sourced from the Division of Professional Regulation (DPR).

Try a free lookup — no signup, right here on this page. For programmatic access, take a free API key — 250 requests a month, no card. Also on RapidAPI and, if you would rather not write code at all, the Apify Store.

Which DE classifications count as HVAC contractors

• Master Hvacr — Full heating, ventilation, air conditioning and refrigeration
• Master Hvacr Restricted — Limited to the categories named on the licence

A record's classifications array carries these codes, so you can tell a licence that covers the work from one that merely exists.

Run it

curl "https://contractor-license-verification2.p.rapidapi.com/v1/licenses/DE/HM-0011434" \
  -H "X-RapidAPI-Key: YOUR_KEY" \
  -H "X-RapidAPI-Host: contractor-license-verification2.p.rapidapi.com"

HM-0011434 is a real DE licence (TREVOR OLIVER) in this trade, so that call works as written.

Before you rely on it

Restricted is not a lesser grade of the same licence — it authorises only the categories DPR named on it, and the register does not publish which those are. Confirm scope with the holder before hiring for work outside routine service.

What Division of Professional Regulation does not publish

• General contractors — Delaware does not license them
• Company names — every trade license is held by a person
• Street address
• Surety bond
• Workers' compensation
• General liability insurance
• Disciplinary actions

Full coverage detail, including the caveats that apply to every Delaware lookup, is on the Delaware page.

Other trades in Delaware

Hvac contractors in other states