Plumbing guides for Phoenix homeowners

It depends on where you are in the process:

• You have a quote and want to know if it is fair: read the cost guide.
• You are about to hire someone: read the hiring guide, then check the license.
• Your water bill jumped or a floor feels warm: read the slab leak guide.
• Your fixtures are crusted or your water heater rumbles: read the hard water guide.
• Your water heater is near the end of its life: read the tank versus tankless guide.

How much does a plumber cost in Phoenix?

A breakdown of published cost ranges for common plumbing jobs, with each figure labeled by source and year, and an explanation of why quotes for the same job can differ.

How to choose a plumber in Phoenix

A hiring checklist built around Arizona's licensing system: how to check a contractor with the Registrar of Contractors, what to look for in an estimate and contract, and the red flags to avoid.

Signs you have a slab leak

A leaking pipe under a concrete floor can run for weeks unnoticed. This guide walks through the warning signs of a slab leak, the checks you can do yourself and what professional detection and repair involve.

Hard water in Phoenix

What the minerals in Valley water do to faucets, fixtures and water heaters, and what homeowners can do about it.

Tank vs tankless water heaters in Phoenix

A comparison of tank and tankless water heaters for Phoenix homes, covering cost, lifespan and maintenance, with the questions to ask before you replace a failing unit.

A few rules come up again and again. The Arizona Registrar of Contractors says state law requires a licensed contractor when a project's total cost, labor and materials included, is over $1,000, or when the work needs a local permit. It recommends getting estimates from at least three licensed contractors, confirming the license is current on the day you sign, and never paying in cash or signing over an insurance check. Its online search covers more than 40,000 licensed companies.

The Arizona Attorney General adds payment advice: never pay in full up front, do not pay more than one third of the total cost as a down payment, and make the final payment only after you have written proof that subcontractors and suppliers have been paid, because unpaid parties can file a mechanics lien on your home.

On leaks, the EPA’s WaterSense program says the average household's leaks can waste more than 9,300 gallons a year and that nine percent of homes have leaks wasting 50 gallons or more per day. Its two-hour meter test is the simplest way to check for a hidden leak: read the meter, use no water for two hours, then read it again. If the number has changed, you probably have a leak somewhere in the system, and the slab leak guide explains the next steps.

No public agency publishes Phoenix-only plumbing prices. Our guides use national cost guides such as HomeGuide, HomeAdvisor and Angi, always naming the guide and its year, and official sources for licensing, permits and safety. If we cannot verify a figure, we leave it out. Our about page describes the editorial policy in full.

For a specific job, see the services section, which covers water heaters, drain cleaning, leak detection, sewer lines and emergency plumbing. For a specific city, the locations section covers eight Valley cities. If something is leaking right now, go straight to the emergency checklist.

Plumber Phoenix Pros is an independent guide and not a licensed contractor. To reach a plumber, call one of the licensed contractors listed on this page or see all listed contractors. Questions about this guide or a correction: email hello@plumberphoenixpros.com. We do not take service requests and do not pass messages on to contractors.