How to Verify a Plumber License in Pennsylvania

Verifying a plumber's credentials in Pennsylvania requires checking two separate systems, because the state registration and the local trade license are administered by different agencies. Checking only one gives you an incomplete picture.

Step 1: Check HICPA Registration

The Attorney General's office maintains an online Home Improvement Contractor verification database. This tells you whether a contractor is registered under the Home Improvement Consumer Protection Act — the state-level requirement for anyone doing residential work over $5,000 per year.

Search by contractor name or registration number. A valid HICPA record confirms the contractor has an active registration, has paid the biennial fee, and has proof of insurance on file with minimums of $50,000 for personal injury and $50,000 for property damage.

What HICPA verification does not tell you: whether the plumber holds a valid municipal trade license, whether they passed a plumbing exam, or whether they have the authority to pull permits in your jurisdiction.

Step 2: Check the Municipal Trade License

The second check is the one most people miss. Because Pennsylvania licenses plumbers at the municipal level, you need to verify the trade credential with the specific city, county, or borough where the work is being performed.

Philadelphia — Contact the Department of Licenses and Inspections (L&I) or use the eCLIPSE portal as directed by the city to verify active trade-license status. You can verify whether a plumber holds an apprentice registration, journeyman license, or master license issued by the city.

Allegheny County (Pittsburgh) — Contact the Allegheny County Health Department Plumbing Program to verify current license status. The Accela Citizen Access Portal handles the program's online registrations and renewals.

Other municipalities — Contact the local code office, building department, or licensing board. Smaller municipalities may not have online lookup tools, but they can confirm license status over the phone or in person.

Why Both Checks Matter

A contractor can be HICPA-registered but unlicensed locally — this means they registered with the state for consumer protection purposes but do not hold the trade credential that authorizes plumbing work in your area. They cannot legally pull permits.

Conversely, a plumber can hold a valid municipal trade license but lack HICPA registration — this means they are authorized to do plumbing work but are not registered for residential home improvement contracting. If they are doing residential work over the $5,000 threshold without HICPA registration, any contract they sign may be legally unenforceable.

What to Verify Before Hiring

For homeowners hiring a plumber for residential work, confirm:

1. Active HICPA registration (state level) — if the project exceeds $5,000
2. Active municipal trade license (journeyman or master) — in the municipality where the work will be performed
3. Master plumber status — if the plumber will be pulling permits for the project
4. Insurance coverage — meeting or exceeding local requirements

For contractors verifying a subcontractor's credentials, add their apprenticeship or journeyman documentation to the checklist, and confirm who will hold the permit for the work.

The Pennsylvania Plumber License Guide includes a pre-hire verification checklist and direct links to the major municipal verification portals across the Commonwealth.

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