Tub-to-Shower Cost GuideWhat a tub-to-shower conversion actually costs, itemized

Ontario, California Conversion Cost Estimate

Ontario homeowners can see a conversion cost estimate here before requesting quotes. Below it are the longest-licensed contractors based in Ontario, California, out of 17 on file.

Licenses checked · California Contractors State License Board

Updated

Estimated cost in Ontario

Estimated cost in Ontario, CA
ProjectNational rangeOntario estimate
Acrylic kit conversion$2,000 to $5,000$2,000 to $4,950
Acrylic kit with a framed glass door$2,300 to $6,200$2,300 to $6,150
One-piece fiberglass unit with a bench$4,100 to $8,500$4,050 to $8,450
Custom tile shower with a niche$6,200 to $12,500$6,150 to $12,400
Custom tile shower with a frameless door and the valve moved$7,050 to $14,900$7,000 to $14,800

Tub-to-shower prices here move only the labor part, roughly 50% of a typical bill, by how Riverside-San Bernardino-Ontario, CA pay for this work compares with the U.S. median.[2] Build your own estimate →

$26.37 median hourly wage for tile and stone setters in the metro

What Ontario's labor market means for this estimate

The local estimate for Ontario starts from a $26.37 hourly wage for shower and tile contractors, compared with $26.77 nationally.

Ontario runs about the same as the national figure for this trade.

A city like Ontario with higher local wages will show a higher adjusted estimate than the flat national range suggests on its own.

That's why the Ontario number below can differ from a neighboring city's estimate even for the same surround type.

U.S. median $26.77/hr

Data: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics (OEWS), May 2025.

Ontario's longest-licensed shower and tile contractors

The 8 longest-licensed contractors based in {city}, not a ranking by quality.

  1. Rancho Loma Floors INCTile contractor · licensed 37 years · 91730Verify license
  2. D M Gorder Construction COTile contractor · licensed 34 years · 91764Verify license
  3. Chava's Marble & TileTile contractor · licensed 32 years · 91766Verify license
  4. Moore United Construction INCTile contractor · licensed 27 years · 91762Verify license
  5. HDC Construction INCTile contractor · licensed 24 years · 91762Verify license
  6. So-Cal ShowerdoorsShower specialist · licensed 24 years · 91761Verify license
  7. Del Mar Floor Covering INCTile contractor · licensed 20 years · 91761Verify license
  8. Expert Hardwood FlooringTile contractor · licensed 16 years · 91761Verify license

8 of 17 appear here, oldest license first, each with a link to the official record.

Before you compare a quote to this estimate

  1. Does the quote separate the surround cost from labor, or is it one lump sum?
  2. Is a permit fee included in the quote, or billed separately?
  3. Which add-ons from this page's calculator are already included, and which would cost extra?
  4. Does the quote assume the valve and drain stay in place, or does it include moving them?
  5. Is demolition and disposal of the old tub priced separately?
  6. If the crew opens the wall and finds rot or old plumbing, how does that change the price?

More on California →

Acrylic kit conversion: nearby cities

Sources

  1. How Much Does It Cost to Install a Walk-In Shower?, Fixr, accessed 2026-09-30
  2. How Much Does a Tub to Shower Conversion Cost?, HomeAdvisor, accessed 2026-09-30
  3. Occupational Employment and Wage Statistics: Tile and Stone Setters (47-2044), U.S. Bureau of Labor Statistics, accessed 2026-09-30
  4. Cost to Plumb a Bathroom, Fixr, accessed 2026-09-30