Sprinkler System Winterization Service- 11/27/23. I performed a comprehensive sprinkler system winterization service for our residential client. I guaranteed the removal of all water from pipes, sprinkler heads, valves, and the backflow device. This preventive measure safeguarded the irrigation system from freezing temperatures, preventing potential damage that could have led to extensive and costly repairs. Our winterization service ensured a worry-free winter and a flourishing lawn come spring.