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How to verify plumbing contractor licenses in South Dakota

Check any South Dakota plumbing contractor license — status, expiration, and disciplinary history — through one normalized API, or look it up by hand on the state board portal.

What you can verify

Trade: Plumbing Contractor

Data source: Plumbing Commission official roster (periodic)

Coverage: Plumbing (PLUMBER, PLUMBING CONTRACTOR, RESTRICTED, apprentice tiers); specialty (sewer-and-water, water conditioning, irrigation, mobile home, appliance); onsite-septic. Search-only — source PDFs do not expose license numbers, so /verify is unsupported.

South Dakota also supports name search — when you only have a contractor's name, the /search endpoint returns every matching license with full metadata, plumbing contractor licenses included.

Looking for a different South Dakota trade, or the same trade in another state? See the full South Dakota license guide or the national Plumbing Contractor lookup by state.

One call. The whole picture.

The /verify response is identical in shape across every state and trade, so your integration code never changes per jurisdiction:

{
  "valid": true,
  "name": "SAMPLE CONTRACTING LLC",
  "license_number": "SAMPLE-12345",
  "trade": "plumbing",
  "expiration": "05/12/2027",
  "status": "Active",
  "state": "SD",
  "disciplinary_actions": [],
  "source_url": "https://dlr.sd.gov/plumbing/consumer_info.aspx",
  "cached": false,
  "checked_at": "2026-08-09T07:00:00Z"
}

Example response showing the normalized schema. Wire it up against deterministic fixtures in the sandbox — no credit cost.

Verify South Dakota plumbing contractor licenses programmatically

# Verify a South Dakota plumbing contractor license with one API call
curl -H "X-API-Key: YOUR_KEY" \
  "https://www.tradesapi.com/verify?state=SD&license=SAMPLE-12345&trade=plumbing"

The official South Dakota board portal is at https://dlr.sd.gov/plumbing/consumer_info.aspx — free to search plumbing contractor licenses by hand. TradesAPI wraps it (and every other state) in one API so you don't maintain 51 different scrapers.

Frequently asked questions

How do I verify a Plumbing Contractor license in South Dakota?

Call TradesAPI's GET /verify with state=SD, the license number, and trade=plumbing to get a normalized result — valid/invalid, status, expiration, and any disciplinary actions — in one request. You can also search the official South Dakota board portal by hand.

What comes back for a South Dakota plumbing contractor license?

The normalized /verify result: whether the license is valid, its current status and expiration date, and any disciplinary actions the South Dakota board publishes — the same schema as every other state and trade.

Is South Dakota plumbing contractor license data free to check?

The South Dakota board's public portal is free to search manually. TradesAPI adds a single normalized API across all 50 states plus DC — every new API key includes 50 free verifications.