What Kind of Contractor Do I Need When There Is No Hot Water?
No hot water usually points at the water heater, but the right trade depends on how your heater is powered and what failed. A gas heater with a pilot problem, an electric heater with a tripped element, and a leaking tank are three different fixes — and a couple of them touch gas or electrical connections, which is where doing it yourself gets risky.
Safety first
Smell gas near a gas water heater? Leave, do not touch switches, and call your gas utility from outside. Water pooling around an electric heater is a shock risk — cut power to it at the breaker before going near it.
The 3 trades this job usually needs
A single problem often spans several trades. Here is who does what, and why.
Diagnose and repair or replace the water heater — thermostats, heating elements, a failed gas valve, or a leaking tank.
Water heaters are plumbing’s core scope; most no-hot-water calls end here.
For an electric heater, check the breaker, wiring, and heating elements; for a tankless unit, confirm the circuit can carry the load.
An electric heater that will not heat is often a breaker or element, not the tank.
For a gas heater, inspect the pilot, thermocouple, and gas supply.
Gas components need someone qualified to work on a gas appliance safely.
Not sure this matches your situation?
Describe what is happening in your own words and get a trade-by-trade breakdown for your exact problem — free, no account required. You can then reach out to any qualified pro.
Describe my problem →Common questions
Is no hot water a plumber or an electrician job?
Start with a plumber — the water heater is their scope. If it is an electric heater and the issue is the breaker, wiring, or an element, an electrician may be needed. Telling the pro whether your heater is gas or electric routes you faster.
How long does a water heater last?
Most tank heaters last 8 to 12 years. If yours is in that range and failing, ask about replacement versus repair — a new unit is often the better spend on an old tank.
Why is my water lukewarm but not hot?
Often a failing heating element or thermostat on an electric heater, or a partly working gas valve or pilot. It is usually a repairable water-heater issue rather than a full replacement.
My water heater is leaking — is that urgent?
Yes. A leaking tank can fail suddenly and flood. Shut off the water supply to the heater and, for electric units, cut power at the breaker, then get a plumber out.