Homeowner guides · Water heaters in Reno and Sparks

No hot water? What to expect from the plumber's visit

No hot water doesn't automatically mean you need a new water heater. The problem could be in the heater, its power or fuel supply, its controls or another part of the hot water system.

The visit needs to answer what is wrong before you decide what to buy.

By evengate. · Updated October 2026

Copper water lines and a shutoff valve on a wall
Illustrative photo: copper water lines and a valve at a water heater. Not one of our projects. Photo: Tony Webster, CC BY 2.0, via Wikimedia Commons.

Tell the shop what changed

Is every hot tap affected? Does the water start hot and turn cold? Is one shower behaving differently from the rest of the house?

Mention when it began, any message you can see on the equipment and recent work or interruptions. Send a photo of an accessible model label if you can safely get one. If you don't know whether the heater is gas, electric or a heat pump model, say so.

Don't remove covers or operate gas controls to prepare for the appointment. If you suspect a gas leak, leave and follow NV Energy's emergency guidance, including calling 911 and the utility from a safe location outside.

The heater type changes what needs checking

A gas heater raises questions about fuel, ignition, controls and venting. An electric heater has power, control and heating components to check. Heat pump water heaters have additional equipment.

These are jobs for the qualified professional assessing your model. A pilot light suggestion for someone else's heater isn't a diagnosis of yours.

Before booking, ask what the diagnostic charge includes and how the shop handles further testing if the cause isn't clear on the first visit.

If the conversation turns to replacement

Ask what the plumber found and why they recommend a new heater. A brochure about the replacement doesn't explain what happened to the existing one.

If repair is an option, get the part and work described, the price and anything the repair would leave unresolved. If replacement is recommended instead, get that reason in writing. It helps if you want a second opinion.

Then compare the complete installation, including removal, connections, permits and other work. Our water heater quote guide covers those items. If you're considering a different type of heater, the tank or tankless guide explains that separate decision.