Contact

Tankless Authority functions as a national reference directory for the tankless water heater service sector, connecting service seekers and industry professionals with qualified contractors, installers, and inspection resources across the United States. This page outlines the available channels for reaching the Tankless Authority editorial and directory office, the geographic scope of the directory's coverage, and the information that should be included in any inquiry to ensure an efficient response.

Additional contact options

The Tankless Authority directory supports several inquiry types beyond standard editorial correspondence. Professionals operating in the tankless water heater installation and service sector — licensed plumbers, HVAC contractors, permit expeditors, and inspection specialists — may submit requests related to directory listing accuracy, credential verification, or service area updates. Researchers and regulatory staff reviewing directory classifications are directed to the same general correspondence channel.

Inquiry categories recognized by this office include:

1. Directory listing inquiries — requests to add, correct, or remove a contractor or service provider entry in the Tankless Listings database
2. Scope and classification questions — questions about how the directory organizes service categories, licensing tiers, or geographic coverage zones
3. Editorial accuracy reports — submissions identifying factual errors in directory descriptions, regulatory citations, or classification language
4. Research and data requests — inquiries from journalists, academic researchers, or government agency staff seeking information about directory structure or methodology
5. Technical or operational issues — reports of broken links, inaccessible listing pages, or display errors encountered while navigating the directory

Each inquiry type is routed to a specific review process. Providing a clear subject line that reflects the inquiry type above reduces processing time. Correspondence that does not fit one of the five categories above is reviewed under a general editorial triage process.

How to reach this office

The primary contact method for Tankless Authority is the web-based message form accessible on this page. The form is the fastest-reviewed channel and is monitored during standard business hours, Monday through Friday. There is no telephone line published for this office; all inquiries are handled through written correspondence.

The directory office does not provide real-time installation support, emergency plumbing referrals, or licensed contractor recommendations. Those functions are performed by licensed professionals operating under the authority of state plumbing boards — for example, the California Contractors State License Board (CSLB), the Texas State Board of Plumbing Examiners (TSBPE), or the equivalent licensing body in the relevant jurisdiction. Requests for emergency service should be directed to a locally licensed contractor or the local authority having jurisdiction (AHJ).

For questions about the purpose and organizational structure of this directory, the Tankless Directory Purpose and Scope page provides reference detail on classification methodology, licensing tier definitions, and the regulatory frameworks — including the International Plumbing Code (IPC), NFPA 54 (National Fuel Gas Code), and UL 174/UL 1453 equipment standards — that inform how listings are categorized.

Service area covered

Tankless Authority maintains a national scope, covering all 50 U.S. states and the District of Columbia. Directory listings span residential and commercial tankless water heater installation and service providers operating under state-issued plumbing or mechanical contractor licenses.

The directory recognizes 3 primary installation and regulatory contexts that affect how listings are classified:

• Gas-fired tankless systems — governed at the federal level by the Department of Energy (DOE) appliance efficiency standards under 10 CFR Part 430, and at the local level by the AHJ adopting either the IPC or the Uniform Plumbing Code (UPC)
• Electric tankless systems — subject to National Electrical Code (NEC) Article 422 for appliance wiring requirements, with additional load calculations governed by NEC Article 220
• Condensing vs. non-condensing units — a classification boundary that affects venting material requirements under NFPA 54 Section 12 and local mechanical codes, and which determines the permit and inspection pathway in most jurisdictions

Geographic coverage does not imply endorsement of any listed contractor. Licensing verification is the responsibility of the service seeker and should be confirmed directly with the relevant state licensing board before engaging any professional for permitted work.

What to include in your message

Complete, specific correspondence receives faster and more useful responses. Incomplete submissions — particularly those lacking a service state, license type, or listing identifier — typically require at least one follow-up exchange before the inquiry can be processed.

A well-formed message to this office should include the following elements:

1. Full name and organization — individual name and, where applicable, the name of the contracting firm, agency, or institution submitting the inquiry
2. State or jurisdiction — the U.S. state or territory relevant to the inquiry, since licensing requirements, code adoptions, and permit processes vary by jurisdiction
3. Inquiry category — one of the five categories listed in the Additional Contact Options section above
4. Listing or page reference — for accuracy reports or listing updates, the specific page URL or contractor name in question
5. License type and number — for directory listing requests, the state-issued license type (e.g., plumbing contractor, mechanical contractor) and license number, which will be cross-referenced against the issuing board's public records
6. Detailed description — a plain-language description of the issue, request, or question, including any relevant code section, equipment type (gas-fired, electric, point-of-use, or whole-house), or permit reference number if applicable

Submissions that include verifiable license information processed against a named state board database — such as the Florida Department of Business and Professional Regulation (DBPR) or the Illinois Division of Professional Regulation — are resolved within the standard review cycle. Submissions without verifiable credentials are held for secondary review.