Does Mesa have a gas appliance rebate for water heaters?

The city's requirements decide this, and the first one trips up a lot of people. The applicant "must be a Mesa natural gas customer with an individual meter (no master meters)," and the page adds in bold that "Southwest Gas customers are not eligible." Mesa's Savings & Rebates page says "Southwest Gas services some Mesa residents," so a Mesa mailing address doesn't settle it. Look at your gas bill. If it comes from the City of Mesa, you're in the right utility. If it comes from Southwest Gas, this rebate is not yours. Mesa's page sends Southwest Gas customers to the Southwest Gas website for their rebates.

The rest of the list, from the city page:

• Only homeowners or custom home builders are eligible, with no builders of new tract homes.
• The water heater must be "tank style - 30 gallon minimum size requirement."
• The appliance must be new and purchased by the homeowner.
• It must be installed and operational.
• The offer is "limited to six months from appliance purchase date."
• Inspection of the premises by the city's Energy Resources staff may be required.

Read that tank rule twice. The page describes a tank-style water heater with a 30 gallon minimum. It does not say a tankless heater qualifies, so if you're leaning tankless, ask the city before you count on the credit. Our page on gas versus electric water heaters and what to know before buying a water heater walk through the tank and tankless tradeoffs.

The process is three steps on the city page.

1. 1Meet the requirements above.
2. 2Gather the paperwork. The city asks for an electronic copy of the receipt or invoice "showing location of purchase, date of purchase, total BTU and EER rating." You upload it with the online application.
3. 3Wait for the credit. The city says "We will issue a bill credit to the account on the application if approved. Please allow 4 to 6 weeks for processing."

It's a bill credit, not a check, so it only helps if the account on the application is the one that pays the gas bill. Keep the invoice from whoever supplied the heater, and make sure it shows the BTU rating. If a contractor installs the unit, ask that the invoice lists the model and its BTU input. We give upfront pricing and itemized quotes, so that's an easy ask before the job starts.

For questions, the page lists the Energy Resources contact at 480-644-3683. Have your account number and the heater's model ready when you call.

### What mistakes cost people the rebate?

Most misses come from the eligibility list, not the paperwork. Before you buy, check the list against your own situation, and watch for these:

• Wrong utility. A Southwest Gas bill means no Mesa rebate.
• Master meter. The page says an individual meter only, with no master meters.
• Tract builder. The page says builders of new tract homes are not eligible.
• Used or floor-model units. The appliance must be new.
• Waiting too long. The offer is limited to six months from the purchase date, so apply once the heater is installed and running.
• Tankless by default. The page describes a tank-style heater of at least 30 gallons.
• Skipping the permit call. The page says to contact the permit office before adding gas appliances. Do that before the install, not after.

The city's own pitch for gas is efficiency. The page says "Natural gas water heating is more efficient than electric water heating, which saves time and money." That is Mesa's statement, and Mesa runs its own gas utility, so weigh it alongside your own setup. The gas versus electric page lays out the tradeoffs from a plumber's side.

Mesa's page gives one instruction up front: "Contact the permit office for your city or county prior to adding gas appliances." It lists City of Mesa Development Services, Queen Creek Development Services and Pinal County Building Safety, so check which office covers your address. Our page on permits to replace a water heater covers the Phoenix side of that process.

The page also warns that "Adding gas appliances may require a larger capacity meter and in some cases, excess flow valve (EFV)," and that these changes are subject to labor and material fees. Mesa's energy safety page explains why. It says the EFV and gas meter "are sized based on the total anticipated load of the existing gas appliances," and that added appliances "may make your total gas demand too high for your current gas meter and may affect the operation of your EFV."

Here's what that means for a water heater:

• Gas for gas. You're replacing an appliance that's already on the meter, so the load stays in the same neighborhood. Confirm with the city if you're upsizing.
• Electric to gas. You're adding a gas appliance. That's when the gas line, the meter and the valve questions come up. See how an excess flow valve works, and who can install a gas line in Arizona.

Either way, gas piping and venting are work for a licensed plumber, and the rebate is small next to what the install involves.

Not on Mesa's own page for gas water heaters. Our page on Mesa's water and energy rebates covers the rest of the city's menu. Mesa's Savings & Rebates page also lists an Electric Vehicle Time of Use Rate, a Renewable Energy Service Rider and an Electric Smart Peaks Program, none of which is about hot water. The same page points to other agencies, including Efficiency Arizona, which it describes as "a rebate program for qualified households to install highly efficient appliances and HVAC equipment."

Federal credits are worth a look, with a date check. ENERGY STAR's federal tax credit page says "There are federal tax credits available through the end of 2025." It lists natural gas water heaters among the qualifying products, but that end date has already passed as of 2026-09-29. Don't plan around a federal credit without confirming it's still available.

If you're deciding between a like-for-like gas replacement and a switch, HQ Plumbing & Air can size the heater, check the gas line and venting, and give you a free estimate. We're licensed and insured, and you get the price up front before work starts. If your heater is leaking or you have no hot water, we're available 24/7, and you can start with our water heater service.

Keep it simple. Confirm you're a Mesa gas customer, buy a new tank-style heater of 30 gallons or more, keep the invoice, and apply within six months. The $25 is the city's, and it's yours if the rules fit.