Leak Detection and Repair in Scottsdale

Start with your own data. Scottsdale's WaterSmart portal is free to every Scottsdale Water customer, and where the address has the city's advanced metering, it shows water use by the hour and sends leak alerts. The city says about two thirds of its customers had hourly data as of December 2025, with the rollout expected to finish by 2030. If your graph shows a flat line of use at 3 a.m. when everyone is asleep, something is running. Log in through your online utility account to see it.

Then the meter test. Shut off every fixture, appliance, softener and irrigation zone and watch the meter; any movement means water is leaving the system past it. Close the main valve at the house or building. If the meter stops, the leak is inside. If it keeps going, it is in the buried line. Our water meter leak test walks through it.

From there we take over with acoustic listening, thermal imaging, section-by-section pressure testing and tracer gas, and mark the spot before anyone cuts drywall or concrete. See leak detection.

The owner, for everything after the meter. City Code 49-24 says the account holder or owner maintains all customer supply lines and connections on the property, and the meter stays the city's. City Code 49-46 goes a step further than most Valley codes: the owner is responsible for leaks on the user's side of the meter, for the damage they cause, and for all the water they waste. The meter itself is city property, and the city maintains it unless the owner damaged it.

Scottsdale has a written path, and it is narrow. Under 49-46(c), leak water can be billed at the lower usage tier when all of these are true: use was at least three times the same period last year, you have not had a similar adjustment in the past 60 months, you contact Utility Billing within six months of when you knew or should have known about the use, and it covers one month of unexplained use. If your address has automatic meter reading, you must also be enrolled in WaterSmart, which is one more reason to sign up before you need it.

Two more conditions decide the outcome. The city wants proof of repair before it approves anything: paid invoices, or parts receipts if you did the repair yourself. And credit adjustments go to residential customers only. Keep the invoice from your plumber and the date you found the leak. The clock starts when you knew, so call the city soon after the repair.

Scottsdale's permit list is broader than its neighbors'. The city's home improvement guidance puts repairing broken water lines, replacing water lines in a single-family home and sewer line repair under a Minimum Plumbing Permit, with no plan review needed. In Phoenix, stopping a leak is exempt, and Mesa exempts like-for-like exterior water line replacement, so do not assume a neighbor's rule carries over. Repairing existing landscape irrigation piping is the one leak repair Scottsdale lists as permit-free. We pull the permit when the job needs one and book the inspection. More on Scottsdale permits is in softener, irrigation and repipe permits in Scottsdale.

Hard water, mostly. Scottsdale's 2024 water quality report lists 13 to 17 grains per gallon of hardness depending on the area, very hard on the USGS scale everywhere in the city. Scale wears valves, supply lines and water heaters. Census figures put the median Scottsdale home at 1991, and roughly 38,000 homes date from before 1980, so a lot of original fittings and supply lines are at the age when they give out.

Homes: most calls are a slab leak, a failed supply line under a sink, a leaking water heater, or the yard line between the meter and the house. Slab leaks can be repaired in place or rerouted through walls and the attic.

HOAs, condos and businesses: a shared line, a clubhouse or a landscape meter can leak for weeks before anyone owns the problem. Scottsdale's leak credits are residential only, so a business pays for every gallon that leak wastes. That makes speed the whole point: we offer same-day service, and a meter test quickly shows whether the water is leaving past the meter. See commercial leak detection and HOA plumbing.

If WaterSmart shows the spike only during irrigation hours, check the sprinkler system first; that is a landscape repair, and a permit-free one in Scottsdale. A running toilet, a softener stuck in regeneration or a pool autofill that never stops can each look like a leak. Fix those and watch the hourly graph for a day.

Call with the address, your WaterSmart graph if you have it, and what you have noticed. We offer 24/7 emergency service, free estimates and upfront pricing before work starts. For everything else we do in the city, see the Scottsdale service area page.