How much does water heater cost in Illinois

PlumbingUpdated March 2026

The answer to 'how much does water heater cost in Illinois' is that the cost of a new water heater can vary significantly depending on several factors. Generally, you can expect to pay anywhere from $500 to $2,000 for a standard electric or gas water heater, not including installation. The final price will depend on the size, type, and efficiency of the unit, as well as any unique installation requirements for your home.

Factors that can influence the cost include the tank size, fuel type (electric vs. gas), energy efficiency rating, and brand. Additionally, the complexity of the installation, such as if you need to upgrade electrical or gas lines, can also impact the overall cost. It's always best to get quotes from local plumbers to get an accurate estimate for your specific situation.

Sources

International Association of Plumbing and Mechanical Officials (IAPMO)— authority

American Society of Plumbing Engineers (ASPE)— authority

U.S. Department of Energy - Water Heaters— reference

Frequently Asked Questions

What are the most common types of water heaters?

The most common types of water heaters are electric and gas-powered. Electric water heaters are generally less expensive to purchase but can be more costly to operate, while gas water heaters tend to have a higher upfront cost but lower ongoing energy expenses.

How long do water heaters typically last?

On average, a well-maintained water heater should last between 8 and 12 years. However, the lifespan can vary depending on the quality of the unit, how often it's used, and the water quality in your area.

When should I consider replacing my water heater?

You should consider replacing your water heater if it's more than 10 years old, if it's not heating water efficiently, or if you're experiencing frequent leaks or other problems. It's best to replace a water heater before it fails completely to avoid any unexpected water damage or disruption to your home's hot water supply.

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