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Frequently asked questions
Does the $7,000 small job exemption cover plumbing in Utah?
No. Under Utah Code 58-55-305, plumbing system work must be done by a licensed plumbing contractor, and component work such as a faucet or toilet by a licensed contractor or journeyman. From January 1, 2027, Utah Code 58-55-110 leaves out all plumbing system and component work.
What license does a plumber need in Utah?
A plumbing contractor needs a P200 General Plumbing or P201 Residential Plumbing license under R156-55a.
Do I need a licensed plumber to strap my water heater?
No contractor license is needed for seismic strapping under R156-55a-301an. Replacing or reconnecting the heater is plumbing work.
Who can test a backflow preventer in Utah?
A backflow tester certified by the Utah Division of Drinking Water.
Who do I call about a septic system in Utah?
Your local health department, which Utah DEQ lists by county.
How fast should I dry out after a leak?
EPA says within 24 to 48 hours to prevent mold.
How do I check if a contractor is licensed in Utah?
Search the business name or license number in DOPL's License Lookup and Verification system at secure.utah.gov/llv, or call DOPL at (801) 530-6628.
On this site: Who can do plumbing work in Utah · Water heater strapping in Utah · Backflow prevention and testing · Sewer lines, septic tanks and digging · Leaks and water damage · How to check a Utah plumbing license · Before you hire a plumber in Utah · FAQ · Sources
Sources
- Utah State Legislature: Utah Code Title 58, Chapter 55, Utah Construction Trades Licensing Act (full chapter, including 58-55-102 Definitions) (checked October 30, 2026)
- Utah Office of Administrative Rules: Utah Admin. Code R156-55a-301f and 301j, P200 General Plumbing and P201 Residential Plumbing Contractor (rule effective August 7, 2026) (checked October 30, 2026)
- Utah State Legislature: Utah Code 58-55-110, Exemptions from licensure (effective January 1, 2027; renumbered and amended from 58-55-305 by Chapter 42, 2026 General Session) (checked October 29, 2026)
- Utah Office of Administrative Rules: Utah Admin. Code R156-55a-301an, Activities Exempt from Licensing (checked October 30, 2026)
- Utah Department of Environmental Quality, Division of Drinking Water: Cross Connection Control and Backflow Prevention (checked October 30, 2026)
- State of Utah (DOPL): License Lookup and Verification (checked October 29, 2026)
- Utah State Legislature: Utah Code 58-55-305, Exemptions from licensure (effective May 7, 2025; the Legislature lists it as renumbered January 1, 2027) (checked October 29, 2026)
- Utah Division of Professional Licensing (DOPL): Contracting Frequently Asked Questions (checked October 29, 2026)
- Utah Department of Environmental Quality, Division of Drinking Water: Cross Connection Control Rules and Codes (checked October 30, 2026)
- Utah Department of Environmental Quality: Local Health Departments (checked October 30, 2026)
- Utah State Legislature: Utah Code Title 54, Chapter 8a, Damage to Underground Utility Facilities (54-8a-4 Notice of excavation) (checked October 30, 2026)
- Blue Stakes of Utah 811 (utility notification association under Utah Code 54-8a-9): Blue Stakes of Utah 811 (checked October 30, 2026)
- U.S. Environmental Protection Agency (WaterSense): Fix a Leak Week (checked October 30, 2026)
- U.S. Environmental Protection Agency: A Brief Guide to Mold, Moisture and Your Home (checked October 30, 2026)
- Utah Division of Professional Licensing (DOPL): Residence Lien Recovery Fund: FAQs for Homeowner or Representing Attorneys (checked October 29, 2026)
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