San Tan Valley plumbing at a glance
Emergency calls
Emergency dispatch available around the clock for leaks, backups and failed water heaters.
Hard water wear
Scale shortens the life of heaters and fixtures, so we look at the cause as well as the symptom.
Growing neighborhoods
Homes of many ages share the area, from early builds to new construction.
What changed in San Tan Valley in 2025 and 2026
San Tan Valley incorporated as a town on September 17, 2025. The 2020 census counted 99,894 people there, up about 22.8 percent from 81,321 in 2010. A community that large keeps adding homes and the plumbing that goes with them.
Pinal County announced that from July 1, 2026, it handles building safety, plan review, permitting and inspections for San Tan Valley under an agreement with the Town. For a permitted job such as a water heater or repipe, contact Pinal County Building Safety at 85 N Florence Street in Florence, phone 520-509-3555.
Sources: Pinal County notice dated June 10, 2026, U.S. Census Bureau.
Hard water in the San Tan Valley area
EPCOR's water quality report for its San Tan system, which serves roughly 31,000 connections from groundwater, lists hardness of 15 to 18 grains per gallon. One grain per gallon is 17.1 mg/L, so that is about 257 to 308 mg/L, which the USGS calls very hard.
The report describes the system as a whole. Check your bill or ask EPCOR which system serves your address before applying that number to your own tap.
EPCOR San Tan system report. Scale shown from 0 to 300 mg/L.
Scale is the likely cause when a tank heater rumbles or a tankless unit throws error codes. See water heater repair, tankless service and softeners and filtration.
Urgent problems we handle in San Tan Valley
Call at any hour for these.
- Water running from a broken pipe or fitting. See burst pipe repair.
- A water heater that is leaking or has no hot water. See water heater replacement.
- A hot spot on the floor or a bill that suddenly jumps. See slab leak repair.
- Sewage in a tub, shower or floor drain. See sewer line repair.
Before we arrive in San Tan Valley
A little preparation gets the work started quickly.
Shut off the water
Find the main valve near the street or on the side of the house and turn it clockwise.
Turn off the heater
If the water heater is leaking, switch off its power or gas control.
Mind the electronics
Keep clear of outlets and appliances in wet areas.
Note the details
Write down when it began and what you heard or saw, and share it on the call.
Plumbing emergency in San Tan Valley?
Call the 24/7 line with your ZIP and cross streets. We will walk you through the first steps while we dispatch.
Call (480) 741-9332Which ZIP codes are San Tan Valley?
Four ZIP codes touch the area. ZIP 85140 is the largest by population among those that use the San Tan Valley name. ZIP 85142 lists Queen Creek as its primary city, with San Tan Valley as an accepted alias, and it spans Maricopa and Pinal counties. ZIPs 85143 and 85144 complete the set.
We dispatch to all four. If your address sits near a county line, give us the street and cross street, and the dispatcher will confirm coverage.
Older homes and new builds both need plumbing help
Homes built in the early growth years now have water heaters near the end of their life, supply lines that are aging and fixtures worn by scale. Newer homes bring a different set of calls: builder-grade fixtures, poor drain slopes and installation faults that show up under a camera.
A single question guides most visits: is this a repair or a replacement? We explain both so you can choose. See repiping and plumbing installation.
Code and permits in San Tan Valley
Pinal County Building Safety applies the adopted plumbing code, usually based on the UPC or IPC, to permitted work in San Tan Valley. Ask which edition applies before a water heater swap, sewer repair or repipe.
How a San Tan Valley call works
The process is the same every time.
- Call.Dial (480) 741-9332 and give your cross streets and the problem.
- Stabilize.The dispatcher tells you what to shut off and what to leave alone.
- Dispatch.A plumber heads out from Florence.
- Quote.You hear the price and options before work starts.
- Fix and test.We repair, test and explain what to watch.
Plumbing questions from San Tan Valley homeowners
We cover 85140, 85142, 85143 and 85144. If your address is near a boundary, tell the dispatcher your street and cross street.
Yes. Dispatch is open 24/7, including nights, weekends and holidays. A plumber travels from Florence.
Pinal County Building Safety, under an agreement that began July 1, 2026. The office is at 85 N Florence Street in Florence.
EPCOR's San Tan system report lists 15 to 18 grains per gallon. Check which system serves your address, and test your tap to be sure.
Often, depending on the unit and stock. Call early and tell us the tank size and fuel type.