St. George Bathroom Remodel Guide: Fees, Utah's Trade Rule and Hard Water

A free cost and process guide for homeowners in St. George and the rest of Washington County, from Get Bathroom Pros.

The rule that matters most

Utah law exempts alteration, repair and remodeling work with a contracted value under $7,000, labor and materials included, from contractor licensing. That might suggest a small bathroom update can be done by anyone. But the same law says work on a plumbing or electrical system must be done by an electrical or plumbing contractor holding a Utah license, even on those jobs. A handyman can paint and hang a mirror; moving a drain or adding a circuit takes the right trade.

Permit charges to know

The City of St. George's building fee sheet adds a plan check fee of 65% of the building permit fee when plan check applies, plus a 1% D.O.C. charge on the building permit fee. Ask your contractor whether your project needs a building permit, whether plan check applies, and whether these charges are included in the quote.

Where your water comes from

St. George's drinking water comes from springs and wells in the Navajo Sandstone and Kayenta Formation aquifers of the Virgin River basin, plus surface water bought from the Washington County Water Conservancy District. The City of St. George says most water sources in Southern Utah are hard, and that customers with water softeners may find settings of 13 to 24 grains per gallon most effective.

Choosing fixtures for hard water

  • Pick faucet and showerhead finishes that resist spotting.
  • Ask about valve cartridges that are easy to replace when scale builds up.
  • Consider a softener, or check that your existing softener serves the bathroom.
  • Glass shower doors show scale quickly; ask about coatings or frameless designs that are easier to clean.
  • Tile and grout choices matter: darker grout hides mineral stains.

The order of work

1. Design and selections. 2. Permits and plan check. 3. Demolition. 4. Rough plumbing and electrical. 5. Rough-in inspection. 6. Waterproofing and backer board. 7. Tile. 8. Fixtures, vanity, toilet and glass. 9. Final inspection.

Ventilation in a dry climate

Even in the desert, bathrooms need exhaust fans ducted outside. Steam from daily showers condenses in walls and ceilings.

Comparing quotes

Ask for line items for demolition, plumbing, electrical, ventilation, waterproofing, tile, fixtures, glass, permits and plan check, and cleanup. Pay in stages tied to finished work.

Records

Keep the permit, inspection results and warranties together for resale and future repairs.

Accessibility and aging in place

Many St. George homeowners plan bathrooms for the long term. If that is your goal, ask about a curbless or low-threshold shower, blocking in the walls for future grab bars, a comfort-height toilet, lever handles and a wider door. Adding blocking during the remodel costs little; adding it later means opening finished walls.

Sources for this guide

  • Utah law exempts alteration, repair and remodeling work with a contracted value under $7,000, labor and materials included, from contractor licensing; even on those jobs, work on a plumbing or electrical system must be done by an electrical or plumbing contractor holding a Utah license. Source: Utah Code 58-55-305 (version effective May 7, 2025)
  • St. George's building fee sheet adds a plan check fee of 65% of the building permit fee and a 1% D.O.C. charge on the building permit fee, and lists swimming pool permits at $200. Source: City of St. George, Building Fee Sheet (1997 UBC fee scale)
  • St. George's drinking water comes from springs and wells in the Navajo Sandstone and Kayenta Formation aquifers of the Virgin River basin, plus surface water bought from the Washington County Water Conservancy District. Source: City of St. George, 2024 Water Quality Report
  • The City of St. George says most water sources in Southern Utah are hard because of naturally occurring calcium and magnesium, and that customers with water softeners may find settings of 13 to 24 grains per gallon most effective. Source: City of St. George, 2024 Water Quality Report

Sources checked 2026-10-26. Every cost figure on this page comes from a source named above; fees and rules change, so confirm current amounts with the office that sets them before you budget.

More for St. George homeowners: Bathroom Remodeling in St. George, UT.

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