How to File a Plumbing Complaint in New Hampshire

The complaint process for plumbing violations in New Hampshire operates through the Office of Licensed Contractor Complaints within the New Hampshire Office of Professional Licensure and Certification (OPLC). This process applies to licensed plumbers, plumbing contractors, and permitted plumbing work performed within the state. Understanding how the complaint mechanism is structured — and what it can and cannot resolve — is essential for property owners, inspectors, and industry professionals navigating disputes or documented code violations.

Definition and scope

A plumbing complaint in New Hampshire is a formal allegation submitted to a regulatory body asserting that a licensed plumber or plumbing contractor has violated the standards governing their license, performed deficient work, operated without proper authorization, or failed to meet the requirements established under the New Hampshire plumbing code and associated state statutes.

The OPLC, which oversees the New Hampshire Plumbing Board, holds jurisdiction over complaints targeting individuals and entities holding a state-issued plumbing license — including Master Plumber and Journeyman Plumber credentials. The Plumbing Board operates under RSA 329-A, the statute governing plumbing licensure in New Hampshire. Complaints may address:

• Unlicensed practice of plumbing
• Substandard or code-deficient installation
• Failure to obtain required permits
• Fraudulent representations of licensure
• Conduct violations involving consumer harm

The complaint process does not resolve civil contract disputes, determine financial damages, or compel repayment. Those remedies fall within the jurisdiction of New Hampshire courts or the NH Consumer Protection Bureau under RSA 358-A.

Scope and geographic coverage: This page addresses the complaint process as it applies to licensed plumbing work performed within the boundaries of New Hampshire. Complaints arising from work in adjacent states — Vermont, Maine, Massachusetts — fall outside OPLC jurisdiction regardless of whether the contractor holds a New Hampshire license. Federal installations, such as plumbing work on military facilities, are not covered by OPLC enforcement authority. For the broader regulatory context for New Hampshire plumbing, the licensing framework and enforcement environment are detailed separately.

How it works

The OPLC complaint process operates in defined phases. The sequence below reflects the published workflow of the New Hampshire OPLC:

1. Complaint submission — The complainant submits a written complaint to the OPLC, either through the online complaint portal at oplc.nh.gov or by mailing a completed Complaint Form to the office in Concord. The complaint must identify the licensed individual or contractor by name and license number where possible.

2. Initial review — OPLC staff conduct a threshold review to determine whether the complaint falls within statutory jurisdiction. Complaints alleging purely civil disputes or targeting unlicensed parties outside the board's enforcement scope may be redirected or closed at this stage.

3. Investigation — If the complaint clears threshold review, it is assigned for investigation. The Plumbing Board or its designee may request documentation, photographs, permit records, and inspection reports. The licensed respondent receives notice and an opportunity to respond.

4. Board review and determination — The Plumbing Board reviews investigation findings. Possible outcomes include dismissal, a consent agreement, a formal hearing, or referral for disciplinary action. Penalties for substantiated violations may include license suspension, revocation, fines, or required remediation.

5. Notification — Both parties receive written notification of the Board's decision. Decisions resulting in formal discipline are recorded on the licensee's public record maintained by OPLC.

Permit-related complaints may also involve local code enforcement officers or building officials, particularly where inspection records are in dispute. Plumbing permits in New Hampshire are issued at the local level in most jurisdictions; the absence of a required permit constitutes a code violation that can form the basis of an OPLC complaint as well as a local enforcement action.

Common scenarios

The Plumbing Board receives complaints across a distinct set of recurring categories. The 3 most frequently cited bases for complaint in licensed-contractor oversight contexts nationally (per NASCLA documentation) are unlicensed practice, permit evasion, and workmanship deficiency — all directly applicable in New Hampshire.

Unlicensed or under-licensed work: A contractor performing plumbing work requiring a Master Plumber license while holding only a Journeyman credential, or no credential at all, constitutes a direct statutory violation under RSA 329-A. This applies equally to New Hampshire residential plumbing requirements and commercial installations.

Permit evasion: Work completed without a required municipal permit — common in renovation contexts — creates both a local code enforcement issue and a potential OPLC complaint basis. This is particularly documented in water heater replacements and sewer connection work. See New Hampshire sewer connection requirements for permitting thresholds specific to that category.

Code-deficient installation: Installation that fails to meet the plumbing code as adopted in New Hampshire — including backflow prevention, venting, and pipe material standards — can be raised as a complaint if the work was performed by a licensed individual. Relevant standards intersect with New Hampshire backflow prevention requirements.

Failure to complete contracted work: While financial remedies require civil action, a pattern of abandonment or incomplete work may support a conduct-based complaint before the Board.

Decision boundaries

The OPLC complaint process and the Plumbing Board's authority have defined limits. These boundaries determine whether a given dispute belongs before the Board, in civil court, or in another regulatory channel.

The New Hampshire plumbing complaint process page on this authority provides supporting reference for the procedural elements above. For service seekers uncertain whether a situation constitutes a licensure violation versus a civil matter, the distinction turns on whether the conduct involved a breach of licensing standards — not merely a breach of contract.

Complaints involving well and septic system connections that intersect with plumbing work fall under partial OPLC jurisdiction; the New Hampshire Department of Environmental Services (DES) holds concurrent authority over those systems. See New Hampshire well and septic plumbing intersections for that boundary in detail.

The central reference for the New Hampshire plumbing sector — including licensing categories, code adoption history, and board structure — is available at the New Hampshire Plumbing Authority index.

References

• New Hampshire Office of Professional Licensure and Certification (OPLC) — Plumbers Board
• New Hampshire RSA 329-A — Plumbers
• New Hampshire Consumer Protection Bureau — RSA 358-A
• New Hampshire Department of Environmental Services (DES)
• National Association of State Contractors Licensing Agencies (NASCLA)
• New Hampshire OPLC Complaint Portal