Parts of San Tan Valley get gas from the City of Mesa’s Magma service area; if you smell gas there, leave the home and call 911 and City of Mesa gas at 480-644-4277, and elsewhere call 911 and the gas utility named on your bill. For repairs and new piping after the meter, call the number on this page to be connected with a local plumber in San Tan Valley.

San Tan Valley grew from desert and farmland after 2000 into a string of planned communities, including Johnson Ranch, Pecan Creek South, San Tan Heights and Archer Meadows. Voters approved incorporation in 2025, and the new Town now handles zoning and building processes within its limits, with Pinal County providing building safety, plan review, permitting and inspection under intergovernmental agreements. Permits the County issued before the change stay with the County through closeout.
Gas service depends on the address. The City of Mesa runs a gas system called the Magma service area that covers portions of San Tan Valley, Queen Creek and Pinal County. Which utility serves the rest of the town wasn't verified, so check your bill. Most homes here were built in the past two decades as part of planned communities, which means gas systems tend to be builder-installed and sized for the appliances that came with the house. Additions made after move-in, such as a pool heater, an outdoor kitchen or a tankless water heater, are where undersized lines and missing shutoffs usually show up.
What to do now
- Smell gas? Leave. Don't flip switches or start a vehicle in the garage.
- Call from outside. On City of Mesa gas, call 911 and 480-644-4277. On another utility, call 911 and the emergency number on your bill.
- Wait for the all-clear. Stay out until responders say the home is safe.
- Schedule the repair. The utility makes things safe; a plumber repairs the house piping and relights appliances.
- Planning an addition? Note the appliance and its BTU rating so the line can be sized and permitted.
Symptom guide
| Symptom | Likely cause |
|---|---|
| Odor near the water heater closet | Loose fitting or worn connector |
| New grill or heater runs weak | Line too small for the added load |
| Orange, smoky flame | Burner or air supply problem |
| Hiss at the meter riser | Leak at the first fitting after the meter |
Cost factors
- Distance from the meter and whether the route crosses the attic or the yard
- Upsizing a builder-sized line for a pool heater, tankless unit or outdoor kitchen
- Trenching, plus repairing pavers or landscaping afterward
- Permit and inspection through the Town and County arrangement
- The number of new valves, connectors and fittings
Gas Line Services questions in San Tan Valley
How can I tell which gas utility serves my address?
I smell gas in the house. What comes first?
Does gas piping work need a permit here?
Can gas be piped to a backyard grill, fire pit or pool heater?
More plumbing services in San Tan Valley
Gas Line Services nearby
Helpful guides
Sources
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