Water Heater Repair & Installation

Hot Water When You Need It

Your water heater is one of the most-used appliances in your home — quietly delivering hot water for showers, dishes, laundry, and handwashing every single day. When it fails, the disruption is immediate. David Mechanical provides expert water heater repair and installation for both traditional tank and modern tankless systems throughout Homer Glen and the greater Chicagoland area.

Tank Water Heater Service

Traditional storage tank water heaters remain the most common choice in Chicagoland homes. We service and replace all major brands in gas and electric configurations, from 30-gallon units in condos to 80-gallon systems serving large households. Common repairs include thermostat replacement, heating element swaps, pressure relief valve service, and anode rod replacement — which, if done every 4 to 5 years, can significantly extend your tank’s life. When repair no longer makes financial sense, we replace your unit quickly with minimal disruption.

Tankless Water Heater Installation

Tankless water heaters heat water on demand rather than storing it in a tank, which means you never run out of hot water and you’re not paying to keep 50 gallons warm all day. They last 20+ years with proper maintenance and reduce water heating energy costs by 20 to 30 percent. We size, install, and maintain tankless units from all major manufacturers. A tankless installation involves more complexity than a tank swap — gas line sizing, venting, and condensate management all need to be done right — and we do it right every time.

Water Heater Maintenance

Annual maintenance extends the life of any water heater and keeps it running efficiently. For tank units, we flush sediment buildup from the bottom of the tank, test the pressure relief valve, inspect the anode rod, and check all connections. For tankless units, we descale the heat exchanger to remove mineral deposits that accumulate in hard water areas like much of northern Illinois. A well-maintained water heater lasts longer and costs less to run.

Same-Day Replacements

We understand that no hot water isn’t something most households can wait days to fix. We keep common tank water heater models — in the sizes most frequently needed for Chicagoland homes — on our service trucks for same-day installation. Call us in the morning, have hot water by that evening. For less common unit sizes or tankless replacements, we’ll source the right unit quickly and schedule installation as fast as possible.

Proper Installation Means Safe Installation

Water heater installation involves gas lines, venting, electrical connections, and pressure management. Done wrong, the consequences range from poor performance to carbon monoxide hazards. Every David Mechanical water heater installation meets Illinois code, includes proper shut-off valves and expansion tank where required, and is tested before we leave your home.