Verify a plumber licence in Connecticut

Check a plumber's licence in Connecticut by number or by business name and get one normalized JSON record back, sourced from the Department of Consumer Protection (DCP).

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 CT classifications count as plumbers

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/CT/PLM.0203138-P1" \
  -H "X-RapidAPI-Key: YOUR_KEY" \
  -H "X-RapidAPI-Host: contractor-license-verification2.p.rapidapi.com"

PLM.0203138-P1 is a real CT licence (BALLARO PLUMBING) in this trade, so that call works as written.

Before you rely on it

Connecticut licenses plumbing contractors through the same DCP register as everything else here, so unlike Texas a Connecticut plumber is verifiable in one call.

What Department of Consumer Protection does not publish

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

Other trades in Connecticut

General contractor Electrician HVAC contractor Roofing contractor Painting contractor

Plumbers in other states

California Florida Texas

The API is on RapidAPI with a free tier: Contractor License Verification. It is also on the Apify Store: Contractor License Lookup & Verification. Full schema at /docs.