The answer to 'price to replace water heater in Illinois' is that the cost to replace a water heater can vary widely depending on several factors. Generally, you can expect to pay anywhere from $800 to $2,500 or more for a full water heater replacement, including the unit itself and professional installation.
The exact price will depend on the size and type of water heater, the brand and model, whether it's a standard tank or tankless unit, the complexity of the installation, and your location within Illinois. Additional factors like the need for permits, venting, or other plumbing work can also impact the total cost. It's essential to get quotes from local plumbers to get an accurate estimate for your specific situation.