Plumbing Listings
The listings compiled on this page represent plumbing and drain cleaning service providers operating across the United States, organized by service category, licensing tier, and geographic coverage. Entries reflect the structure of the licensed plumbing trade as governed by state-level contractor boards and model codes adopted at the municipal level. For context on how this directory is structured and what it covers, see Drain Cleaning Directory Purpose and Scope.
Verification status
Listings on this page are drawn from publicly available contractor registration records, state plumbing board databases, and business registration filings. Verification is conducted against the licensing authority of each state in which a provider operates. The United States does not maintain a single federal plumbing contractor license; instead, 50 separate state licensing frameworks govern who may legally perform plumbing work for compensation.
Verification tiers applied to listings in this directory:
- License confirmed — Provider license number matched against the issuing state board's public lookup tool at the time of indexing.
- Registration confirmed — Business entity confirmed through state secretary of state filings; trade license verification pending or not publicly available in that jurisdiction.
- Self-reported — Provider submitted credentials not independently confirmable through a public database at time of listing.
- Unverified — Entry sourced from public business directories; no license confirmation attempted or available.
States including California (Contractors State License Board, CSLB), Texas (Texas State Board of Plumbing Examiners, TSBPE), and Florida (Department of Business and Professional Regulation, DBPR) maintain publicly searchable license databases that allow direct status confirmation. Jurisdictions without centralized public lookup tools — including a subset of counties in states that delegate licensing to the municipal level — are categorized separately within the directory.
Entries flagged as "self-reported" or "unverified" are not endorsements. Readers using these listings for hiring decisions are directed to cross-reference with the relevant state board before engaging a contractor. For instructions on interpreting listing fields, see How to Use This Drain Cleaning Resource.
Coverage gaps
No national plumbing contractor directory achieves complete coverage. The gaps in this listing set fall into four identifiable categories:
Geographic gaps: Rural counties in states with municipal-level (rather than state-level) licensing frequently lack centralized contractor databases. Approximately 13 states delegate partial or full plumbing licensing authority to municipalities or counties, creating fragmented records that are difficult to aggregate at scale.
Specialty gaps: Providers whose primary work is limited to medical gas piping, fire suppression systems, or high-purity process piping — categories governed by distinct certification bodies such as the National Inspection Testing Certification (NITC) or the American Society of Sanitary Engineering (ASSE) — are underrepresented. These specialties require certifications beyond a general plumbing license and are not uniformly captured by state plumbing board registries.
Small operator gaps: Sole-proprietor and 2-person operations with valid licenses frequently lack a web presence sufficient to be indexed by standard aggregation methods. Licensed operators of this size represent a substantial portion of residential drain cleaning service calls nationally but are structurally undercounted in any web-sourced directory.
Temporal gaps: License status changes — expirations, suspensions, reinstatements — occur continuously. The most recent verification date for each listing is displayed in the entry record. Listings older than 180 days without re-verification are flagged for review.
Listing categories
Plumbing service providers in this directory are classified according to service scope, licensing tier, and structure type. The primary classification boundaries are:
By license tier:
- Master Plumber — Holds the highest state-issued plumbing license; authorized to pull permits, design DWV systems, and supervise journeypersons and apprentices. Requirements vary by state but typically include 4–5 years of documented field experience and passage of a written examination.
- Journeyperson Plumber — Licensed to perform plumbing work under the supervision of a master plumber. Typically requires 4 years of apprenticeship under an approved program such as those affiliated with the United Association (UA) of Plumbers, Fitters, Welders and HVAC Technicians.
- Apprentice/Trainee — Enrolled in a registered apprenticeship program; authorized to perform work only under direct supervision. Not listed independently in this directory.
- Drain Cleaning Specialist (non-licensed) — Operators who perform drain cleaning services using mechanical or hydro-jetting equipment without holding a full plumbing license. Legal in some jurisdictions; regulated separately in others. Listings in this category are flagged to indicate the distinction from licensed plumbing contractors.
By service scope:
- Residential drain and sewer cleaning
- Commercial drain maintenance and hydro-jetting
- Sewer line inspection and camera (CCTV) services
- Trenchless sewer rehabilitation (pipe lining, pipe bursting)
- Emergency drain services (24-hour response)
- Septic system drain field and tank service
By entity type:
- Independent licensed contractor
- Franchise operation (e.g., national drain cleaning franchise networks)
- Plumbing contractor with drain cleaning as a secondary service line
The distinction between a master plumber–operated drain service and a non-licensed drain cleaning specialist is significant under the International Plumbing Code (IPC) and Uniform Plumbing Code (UPC), both of which classify drain, waste, and vent (DWV) system work as regulated plumbing work subject to permit and inspection requirements in most jurisdictions. Work on building drain lines beyond the fixture trap — particularly at the main building drain or public sewer connection — typically requires a permit pulled by a licensed contractor under IPC Section 106 and UPC Section 103.
The full index of confirmed Drain Cleaning Listings is maintained as a separate paginated record.
How currency is maintained
Listing records in this directory are subject to a structured review cycle based on the volatility of the underlying data. License status and business registration data are the most time-sensitive fields; contact and service scope data are reviewed on a longer cycle.
Review schedule by data type:
- License status — Re-verified against state board public databases on a 180-day cycle, or immediately upon a reported change.
- Business registration status — Checked against state secretary of state records annually.
- Service scope and geographic coverage — Updated based on provider-submitted corrections or crawl-detected changes to provider websites, reviewed quarterly.
- Contact information — Validated annually; flagged as potentially stale after 12 months without confirmation.
Providers with lapsed, suspended, or revoked licenses are removed from active listings within 5 business days of confirmed status change. Removed entries are retained in an archived state for historical reference but are not surfaced in active search results.
State plumbing boards that publish real-time license status APIs — including the CSLB in California and the TSBPE in Texas — are queried directly for automated status checks. Boards that publish static PDF rosters or require manual lookup are reviewed manually on the standard 180-day cycle.
Providers seeking to update, correct, or dispute a listing record may submit documentation through the contact page. Corrections supported by official documentation from the issuing licensing authority are processed with priority.