Plumber in Chandler, AZ: hard water, permits and how to hire

Chandler is mostly a 1990s and 2000s city. Census Bureau survey data for 2024 put the median year a Chandler housing unit was built at 1998; about 45 percent of homes were built in 2000 or later and only about 9 percent before 1980 (ACS table B25034 via Census Reporter). That profile usually means copper or plastic supply lines, slab-on-grade foundations and water heaters in garages. It also means many original water heaters, softeners and fixtures from the building boom are now reaching the end of their service life at the same time.

The city's Water Quality FAQs say the Chandler Surface Water Treatment Plant, fed by the Salt and Verde Rivers through the Consolidated Canal, provided 60 percent of the city's drinking water. The Santan Vista Water Treatment Plant, shared with the Town of Gilbert, provides about 20 percent, and a network of 32 groundwater wells supplies the rest.

Hardness is the number that matters most for plumbing. The same FAQ page says Chandler's water ranges from 5 to 20 grains per gallon, with a citywide average of 16.5 grains per gallon. The city explains that it does not treat for hardness because only a small share of the water it delivers is used inside homes. For homeowners, that means scale in water heaters, faucet aerators and shower valves is normal here. Our hard water guide covers what scale does and when a softener is worth it.

Chandler's FAQ passes on a practical rule: most water heater manufacturers suggest flushing the tank once a year if you have a water softener, and every six months if you do not. The page also explains how to put a softener into bypass mode (look for the valve labeled "bypass" and move it in the direction of the arrow), which is useful when you are testing whether low pressure comes from the softener or from the house.

On pressure, the city says it runs a single-zone distribution system, so homes closer to the point of entry see higher pressure than homes at the edges. If pressure is low throughout the house, the FAQ suggests checking the outside hose bib at the front of the home first. If the flow is good there, the problem is probably inside: clogged aerators, a partly closed house isolation valve or the softener.

The city's Homeowner's Building Permit Manual lists work that is exempt from a building permit. Two points matter for plumbing:

A switch from a tank to a tankless unit, or from electric to gas, is not like for like, so ask the plumber whether a permit is needed and get the answer in writing. The manual also says the exemption does not authorize work that violates the code. The Development Services permit counter is at 215 East Buffalo Street in downtown Chandler.

The manual says any construction requiring a permit must be done by a licensed contractor unless the owner-applicant performs the work, and that if you own a home you lease or rent to others, a licensed contractor is required to obtain the permit. It points to A.R.S. 32-1121, the Arizona statute that lists who is exempt from contractor licensing.

That gives you a simple check before hiring. Look the company up on the Arizona Registrar of Contractors site and confirm it holds a plumbing classification that fits a home, such as R-37, R-37R or a dual CR-37 license under the ROC classification list. A handyman without a license may only take casual, minor jobs under $1,000 that need no permit, and must disclose "not a licensed contractor" in advertising. Our hiring guide walks through the full check.

This site is an independent guide that explains costs, warning signs and how to hire. It is not a licensed contractor; we do not perform plumbing work and do not answer phones. To reach a plumber, call one of the licensed contractors listed on this page or see all listed contractors. Questions about this guide: email us. We do not take service requests. Run the license checks above on anyone you hire. If water is actively leaking, shut off the main valve first and read our emergency plumbing guide.