🚿 Water Heater Repair and Replacement Services

We service and replace standard tank water heaters (gas and electric), tankless on-demand water heaters, and commercial water heaters for apartment buildings, restaurants, offices, and industrial facilities. Commercial water heater repair is an area where we have particular depth — large-capacity units for buildings with high hot water demand are often Lochinvar commercial systems, and Lochinvar work is a specialty of ours. If your water heater is showing signs of trouble or has stopped working, we'll diagnose the fault and give you a clear picture of repair versus replacement.

The most common water heater calls are: no hot water or insufficient hot water, water that takes too long to reheat, discolored or rust-tinged water (usually a sign of internal tank corrosion or a failing anode rod), a leaking pressure relief valve, or visible water around the unit. On gas units, pilot light issues, thermocouple failures, and gas valve faults are common repair scenarios. On tankless units, sediment build-up is the most frequent maintenance need — hard water areas require descaling periodically to maintain flow and efficiency.

🏢 Commercial Water Heater Specialists

Commercial water heater repair requires a different level of expertise than residential work. High-capacity storage tanks, condensing commercial water heaters, and instantaneous units serving multi-unit buildings operate at higher inputs, serve larger demand loads, and have more complex venting and control requirements. We service commercial water heaters for apartment buildings, small commercial properties, restaurants, and other facilities where consistent hot water supply is critical. We're also experienced with Lochinvar commercial water heaters specifically, which are common in higher-end commercial installations.

For building managers and property owners, we understand that hot water outages affect multiple tenants and need to be resolved quickly. We respond to commercial water heater emergencies and carry parts for common commercial units. For commercial clients, we can also discuss scheduled annual maintenance to reduce the likelihood of unexpected failures — preventive service on a commercial unit is a much smaller cost than an emergency replacement.

How long does a water heater last?

Standard tank water heaters (gas or electric) typically last 8–12 years with average maintenance. The anode rod — which protects the tank from internal corrosion — should be inspected and replaced periodically; tanks that have never had their anode rod replaced often corrode from the inside before they reach their potential lifespan. Tankless water heaters generally last longer, often 15–20 years, because there's no tank to corrode. Commercial units vary considerably depending on the quality of the equipment, the water chemistry, and the maintenance history.

The clearest signs a water heater is reaching end of life: you're running out of hot water more quickly than usual (reduced capacity from sediment build-up or internal corrosion), water is discolored, the unit is leaking around the base (tank corrosion — this won't repair, the unit needs replacing), or you're getting corrosion-related noise from inside the tank. For units over 10 years old with multiple symptoms, replacement is usually more economical than repeated repairs.

Water Heater Service Across Southwest Chicago

We service and replace water heaters throughout Chicago and the southwest suburbs, including Oak Lawn, Cicero, Berwyn, Evergreen Park, Burbank, Palos Hills, Palos Heights, Crestwood, Tinley Park, and Orland Park. Call us for residential or commercial water heater repair and replacement.

Should I repair or replace my water heater?

Age and repair cost are the primary factors. For units under 8 years old, repair is almost always the right call unless the tank is leaking (which isn't repairable). For units 10–12+ years old, compare the repair cost against the cost of a new unit. If the repair is a significant percentage of replacement cost, and the unit is already showing signs of age, replacement is the better long-term decision. We give you both numbers and a straight opinion.

Upgrading from a standard tank heater to a modern high-efficiency tankless unit can deliver meaningful energy savings over time, particularly if the household has consistent hot water demand. Tankless units heat water on demand rather than maintaining a large tank at temperature, which eliminates standby heat loss. They're more expensive to install, especially if the gas line needs upsizing, but the efficiency gains and longer lifespan often justify it. We'll give you a realistic assessment based on your usage pattern.

🚨 Emergency Water Heater Service

No hot water is an urgent problem, especially for households with children, elderly occupants, or commercial properties serving multiple units. We're available 24/7 for water heater emergencies across Chicago and the southwest suburbs. Emergency calls carry an after-hours fee, but we respond quickly and come prepared to diagnose and repair on the first visit where possible.

A leaking water heater is a water damage risk, not just a comfort issue. If you see water pooling around the base of the unit or coming from the pressure relief valve, turn off the cold water supply to the heater and, if it's a gas unit, turn the gas supply off at the valve on the gas line. Then call us. A leak from the relief valve can sometimes be repaired; a leak from the tank body almost always means the unit needs replacement.

Get Your Water Heater Sorted

Call Supreme Heating at (773) 538-7190 for water heater repair or replacement in Chicago and the southwest suburbs. We carry common parts and aim to resolve most issues on the first visit. Our $99.99 service fee covers the diagnostic visit.

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