How long do sprinkler systems last?
Sprinkler heads last about 10-14 years, according to the International Association of Certified Home Inspectors. A high-quality sprinkler system can last a few decades, though you’ll need to periodically replace parts like pop-up heads. Repairing and spot-fixing your sprinklers are highly recommended in most cases, though at a certain point, your entire system may need replacing.
Make sure you get a professional’s opinion as your system ages and parts seem to break more often. And ask the professional to give you cost estimates for repairing your system vs. replacing it entirely.