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24/7 Emergency Service (228) 819-7473
Reliance plumber installing a wall-mounted tankless water heater
Water Heaters

Hot water, back today.

Repair, replacement and honest sizing for tank and tankless water heaters — gas or electric, every major brand.

MS
Licensed & insured
24/7
Emergency calls answered
10
Coast cities served
Upfront
Pricing, no surprises

When the hot water quits

No hot water, water that runs lukewarm and quits early, rumbling or popping from the tank, rust-tinted hot water, or a wet ring spreading under the unit — each points somewhere specific: a failed element or thermostat, a gas control problem, sediment buildup, a dying anode rod, or a tank that's rusted through.

The distinction matters because half of those are affordable repairs and the other half means the tank is finished. We diagnose first and tell you which you're facing, with a price for each path.

Why Coast water heaters age the way they do

Many water heaters here live in garages and outdoor closets, where salt air corrodes fittings, valves and gas controls from the outside while sediment works on the tank from the inside. Homes on well water in Saucier and north Gulfport add mineral load that shortens anode life. A yearly flush and anode check — cheap, quick, unglamorous — is the single biggest thing you can do to stretch a tank's life here.

Replacement done properly

When it's time, we size the new unit by how your household actually uses hot water — first-hour rating for tanks, flow rate and temperature rise for tankless — and we install to current code: pan and drain where required, seismic strapping, expansion tank where the water system calls for it, and a permit when the jurisdiction requires one. Considering tankless? Our warm incoming water makes the Gulf Coast one of the best regions in the country for it, and we'll tell you plainly whether your gas line and venting can support the switch.

Most replacements are done in half a day, hot water the same evening, old unit hauled off.

Riley the Marlin — Reliance Mechanical mascot
🔧 Riley says

Water heaters almost always warn you before they quit — rumbling, rusty hot water, a damp ring at the base. Catch it at the warning stage and you pick the replacement day, not the water heater.

— Riley, the Reliance Mechanical mascot

Frequently asked questions

Ready for service you can rely on?

Get a free estimate or call now — we'll have a Reliance pro on the way.

Emergency Call Schedule