Residential Water-Heater Installer (WHI)
Last updated 02/06/2026
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Fees
| License Fee |
Description |
Exemptions |
| $100.00 |
|
None
|
Description
A licensed residential water heater installer can install and replace residential water heaters.
Duration
License renewal is every three years on April 1.
Renewal Information
A renewal notice will be mailed to the licensee approximately six weeks prior to the expiration of their license. Continuing Education (if necessary) and fees will be explained on the renewal form. Renewal fees vary by license type
Duplicate License Requirements
If you lost your license or have changed your address and would like a replacement license, submit form 2523 from Building Codes website, along with appropriate $10 fee.
Prerequisites and Requirements
Prerequisites
Be an individual sole proprietor, partner in a partnership, or designated officer or employee of a corporation, with both an Electrical Limited Specialty (LMS) and a plumbing contractor license (PB) - and -
Have the application signed by the plumbing-electrical contractor in step 6 of the application -and -
Complete an approved 8-hour training class for WHI
Required Documentation
Completed application with applicable fee
Copy of high school diploma, GED or equivalent
Examination Information
Three-hour, 52 questions, open book. Upon approval, a list will be provided outlining approved exam material.
Continuing Education Requirements
Exempt from continuing education requirements.
Bonding Requirements
None
Insurance Requirements
None
Other Information
Applicants are required to be employed by a registered plumbing contractor with a limited maintenance specialty contractor license.
Statutes, Administrative Rules, Ordinances
Other Detail Information
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