The answer to 'how much to replace boiler in Illinois' is that the cost to replace a boiler can vary widely depending on several factors. Generally, a new boiler installation in Illinois can range from $3,000 to $10,000 or more. The specific cost will depend on the size and efficiency of the boiler, the complexity of the installation, the brand and model, and whether any additional plumbing or electrical work is required.
It's important to get quotes from multiple local HVAC contractors to compare pricing and services. They can assess your home's heating needs and provide an accurate estimate based on the unique requirements of your property.