Licensed Plumber in Pennsylvania: How to Verify Before You Hire

Pennsylvania licenses plumbers at the state level through the Pennsylvania State Plumbing Board, which is part of the Bureau of Professional and Occupational Affairs (BPOA) within the Department of State. This makes plumbing one of the few trades in Pennsylvania with a clear, statewide licensing requirement — unlike electricians, where licensing is scattered across local municipalities.

Before you hire a plumber in Pennsylvania, you can verify their license in about 60 seconds using the state's online database. This guide explains the license types, what they mean, how to look them up, and what you risk if you hire someone without a valid state plumber's license.

Does Pennsylvania require plumbers to be licensed?

Yes. Pennsylvania requires plumbers to hold a license issued by the Pennsylvania State Plumbing Board through the Department of State. The state issues Master Plumber and Journeyman Plumber licenses. Any plumber performing work on a residential or commercial property in Pennsylvania must be licensed, or be working under the direct supervision of a licensed Master Plumber. The licensing database is searchable at dos.pa.gov.

Pennsylvania's statewide plumbing license requirement is meaningful consumer protection. A licensed plumber has demonstrated field experience, passed a state exam, and met the Board's ongoing requirements. An unlicensed plumber has met none of these standards and is operating outside the law.

What is the difference between a Master Plumber and Journeyman Plumber in Pennsylvania?

A Pennsylvania Master Plumber has met higher experience requirements and passed a more comprehensive exam covering plumbing codes, theory, and business practices. The Master Plumber is the license holder of record who can operate a plumbing business, pull permits, and take responsibility for completed work. A Journeyman Plumber is licensed to perform plumbing work but must work under a Master Plumber's supervision and cannot operate independently as the responsible licensee.

When you hire a plumbing company in Pennsylvania, what you are really looking for is a Master Plumber license associated with the business. A Journeyman working for that company can perform the hands-on work, but the Master Plumber is the one accountable to the state licensing board.

If a plumber introduces themselves as the owner and cannot provide a Master Plumber license number, that is a significant problem. They either are not licensed, or they are a Journeyman who is illegally operating as an independent plumbing contractor.

How do you look up a plumber's license in Pennsylvania?

Go to dos.pa.gov and use the Licensee Search tool under the Bureau of Professional and Occupational Affairs. Select "Plumber" as the license type and search by name or license number. The results show the license type (Master or Journeyman), the current status (Active, Expired, Suspended, or Revoked), the license number, and the city where the licensee is located. Confirm the license is Active before signing any contract.

Step-by-step to verify a Pennsylvania plumber:

• Go to dos.pa.gov and click on "Verify a License"
• Select "Plumber" from the license type dropdown
• Enter the contractor's name or license number
• Confirm the license status is Active
• Verify the license type is Master Plumber (or confirm a Master Plumber is associated with the business)
• Note the expiration date to confirm the license has not lapsed

If the plumber does not appear in the database under their name, ask for their license number and search again. Some plumbers operate under a business name that differs from their legal name on the state license. License number searches are more reliable than name searches.

Does HICPA registration apply to plumbers in Pennsylvania?

Yes. If a plumber is performing residential home improvement work in Pennsylvania with a contract value of $500 or more, they must also be registered under HICPA (the Home Improvement Consumer Protection Act) with the PA Attorney General's Office. HICPA registration requires a $50,000 surety bond. You should verify both the state plumbing license at dos.pa.gov and the HICPA registration through the AG's office.

The state plumbing license and HICPA registration are two separate requirements for residential plumbing work. The plumbing license certifies that the person is technically qualified. The HICPA registration provides financial accountability — the $50,000 bond means there is money available if the contractor abandons a job or fails to perform.

Verify both. A plumber with a valid state license but no HICPA registration is still in violation of Pennsylvania law for residential work. A plumber with HICPA registration but no state license is equally problematic.

What insurance should a licensed Pennsylvania plumber carry?

A licensed Pennsylvania plumber performing residential work should carry general liability insurance of at least $1 million per occurrence, workers' compensation insurance for any employees, and their HICPA-required $50,000 surety bond. Request a certificate of insurance before work begins and call the insurance company listed to confirm the policy is currently active.

Workers' compensation is particularly important. Plumbing work involves physical hazards, and if a worker is injured on your property and the contractor lacks workers' comp, you as the homeowner could face liability for medical costs. Verify workers' comp coverage through the Pennsylvania Bureau of Workers' Compensation.

The HICPA $50,000 bond is separate from the general liability insurance. The bond primarily protects against non-performance — a contractor who takes your deposit and walks away. General liability insurance covers property damage and injury during the work itself. You need both.

What are the consequences of hiring an unlicensed plumber in Pennsylvania?

Hiring an unlicensed plumber in Pennsylvania risks homeowner's insurance denials for water damage caused by improper work, failed inspections that require work to be redone, no regulatory recourse through the State Plumbing Board, and potential liability exposure. Pennsylvania's State Plumbing Board can take action against unlicensed plumbers, but recovering your money from someone operating outside the law is far harder than from a licensed, bonded contractor.

Plumbing failures are among the most damaging issues a home can face. The Insurance Institute for Business & Home Safety (IBHS) reports that water damage and freezing are the second most common homeowner insurance claim, with average claims exceeding $10,000. Improper plumbing installation dramatically increases the risk of exactly these types of failures.

An unlicensed plumber also typically skips permits. Unpermitted plumbing is a problem when you sell your home — buyers' inspectors flag unpermitted work, and you may have to remediate it before closing.

Verifying a Pennsylvania plumber's state license and HICPA registration takes two separate database searches. CheckLicensed.comsimplifies this to a single $0.99 check — enter the plumber's name or license number and get an instant report covering license status, bond information, insurance, and any complaints or disciplinary actions on record.