The answer to the cost of backflow preventer repair in Illinois is that the typical range can vary significantly depending on several factors. In general, homeowners in Illinois can expect to pay anywhere from $200 to $800 or more for a backflow preventer repair, with the average cost being around $500.
The exact cost will depend on the complexity of the repair, the type of backflow preventer, the location and accessibility of the unit, and the labor rates of the plumbing contractor in your local area. Repairs may involve replacing worn parts, adjusting the device, or even a complete replacement if the backflow preventer is old or damaged beyond repair. It's essential to get multiple quotes from licensed and experienced plumbers in your local Illinois community to ensure you get a fair price for the work needed.