The answer to 'average cost of irrigation installation' is that the typical cost range can vary widely, from $2,000 to $10,000 or more, depending on several key factors. The size of your lawn or garden, the complexity of the system, the type of sprinklers and valves used, and whether you need to install new water lines can all significantly impact the final cost.
It's important to get quotes from multiple local irrigation installation professionals, as pricing can vary greatly by location and contractor. They can assess your specific needs and provide a more accurate estimate for your project.