Licensed Plumber in Indiana: How to Verify Before You Hire

Indiana requires plumbers to be licensed through the Indiana Plumbing Commission, which operates under the Indiana Professional Licensing Agency at pla.in.gov. The state licensing structure is clear and the database is searchable, which means verifying any Indiana plumber before you hire takes about two minutes and costs nothing. Skipping that step is the only way to end up with unpermitted work, voided insurance, or a flooded house.

This guide covers Indiana plumbing license types, how to search the IPLA database, what bond and insurance requirements apply, and the real cost of hiring a plumber who is not properly licensed.

Does Indiana require plumbers to be licensed?

Yes. Indiana requires plumbers to be licensed through the Indiana Plumbing Commission, administered by the Indiana Professional Licensing Agency (IPLA) at pla.in.gov. Both plumbing contractors (the business entity that signs contracts) and individual plumbers (Master Plumber and Journeyman Plumber) must hold active state licenses. The licensing requirement applies statewide, regardless of the city or county where the work is performed.

Indiana established the Plumbing Commission to enforce minimum competency standards and reduce the risk of public health hazards from improper plumbing installations. Faulty plumbing accounts for a significant share of water damage insurance claims — and when that damage traces back to unlicensed work, insurers routinely deny coverage.

What are the Indiana plumbing license types?

Indiana issues three key plumbing credentials through IPLA: Plumbing Contractor, Master Plumber, and Journeyman Plumber. A Plumbing Contractor license is held by the business entity that contracts for plumbing work. A Master Plumber is a licensed individual who has passed advanced exams and can supervise journeymen and pull permits. A Journeyman Plumber is licensed to perform plumbing work under the supervision of a Master Plumber.

When hiring a plumbing company for significant work, verify that the company holds a Plumbing Contractor license and that the supervising plumber on your job holds a Master Plumber credential. For routine service calls, a Journeyman Plumber working under a licensed contractor is appropriate. Ask for both license types if the scope involves new installations, additions, or permit-required work.

An unlicensed plumber working without a licensed supervisor is not in compliance with Indiana law, even if they are employed by a licensed company. Ask who will be on site and verify their individual credentials, not just the company's license.

How do I verify a plumber's license in Indiana?

Go to pla.in.gov and use the license verification search. Select the license type — Plumbing Contractor, Master Plumber, or Journeyman Plumber — and search by name or license number. The results show current license status (active, expired, or revoked), the license number, and the name on the license. An active status with a future expiration date is the minimum you need before signing any contract.

If a name search returns no results, ask the plumber directly for their IPLA license number and search by that. Some companies operate under a trade name that differs from their legal entity name registered with IPLA. A license number search resolves name-matching issues instantly.

Check the individual plumber's license in addition to the company license. A company can have an active Plumbing Contractor license while individual employees have expired Journeyman credentials. If the person doing the work on your home is not licensed, the company's license does not cover that work.

Does Indiana require plumbing contractors to be bonded?

Yes. Indiana requires Plumbing Contractors licensed through IPLA to maintain a surety bond as a condition of licensure. The bond provides a financial remedy for customers if the contractor fails to complete contracted work, abandons a project, or causes damage they refuse to address. A lapsed bond is grounds for license suspension in Indiana, so verifying bond status at pla.in.gov tells you both the license status and the bond status simultaneously.

In addition to the bond, Indiana plumbing contractors are required to carry general liability insurance and workers' compensation coverage for employees. Request certificates of insurance and call the insurer to confirm both policies are active before any work begins. Plumbing jobs involving water lines, gas lines, or sewer connections carry significant damage potential — verify the insurance is real, not just a certificate that has already lapsed.

What plumbing work requires a permit in Indiana?

In Indiana, most new plumbing installations and significant modifications require a permit issued by the local building authority. This includes new fixture installations, water heater replacements in many jurisdictions, sewer line work, and any work that touches the main water supply or drainage system. Routine repairs like faucet replacements and drain clearing typically do not require permits, but any project that modifies existing plumbing infrastructure likely does.

The permit is pulled by the licensed plumbing contractor, not the homeowner. If a plumber asks you to pull the permit yourself, or suggests skipping the permit entirely, that is a red flag. Licensed Indiana plumbers pull permits routinely as part of their standard process — it is the uninspected, unlicensed operators who avoid them.

Unpermitted plumbing work creates problems at resale. Indiana home inspectors check permit history, and unpermitted work may require remediation or disclosure before a sale can close. The cost of retroactive permits and inspections typically exceeds the original savings from skipping them.

What are the risks of hiring an unlicensed plumber in Indiana?

Hiring an unlicensed plumber in Indiana puts your property, your insurance coverage, and your health at risk. Improperly installed plumbing can cause water damage, mold growth, and in the case of gas line work, fire or carbon monoxide hazards. The Insurance Institute reports that water damage is the second most common homeowner insurance claim — and claims traceable to unlicensed or unpermitted work are frequently denied.

Beyond the physical risks, unlicensed plumbing contractors in Indiana have no bond for you to claim against if they abandon a project or do defective work. Your only recourse is civil litigation against an individual who may have no traceable assets. Licensed contractors have a bond, a license to lose, and a regulatory body — the Indiana Plumbing Commission — that accepts complaints and can pull credentials.

What should I check before hiring a plumber in Indiana?

Before hiring any Indiana plumber, verify the Plumbing Contractor license at pla.in.gov, confirm the individual plumber's Journeyman or Master Plumber credential, request certificates of insurance for general liability and workers' compensation, confirm who will pull the required permits, and get a written scope of work before signing. These steps take under fifteen minutes and provide concrete protection that no amount of positive reviews can substitute.

Payment terms matter as much as credentials. A standard Indiana plumbing contract for a significant job involves payment milestones tied to project completion stages — not a large upfront payment. Any plumber demanding full payment before work is completed should be treated with caution.

CheckLicensed.comsearches the Indiana IPLA plumbing license database for $0.99, returning license status, expiration date, and bond information in seconds. You can also verify directly at pla.in.gov for free. Either way, verify before the first pipe is touched — the cost of checking is a fraction of the cost of discovering the work was never permitted.