You stop dragging hoses across the yard every evening, and the lawn gets watered evenly at sunrise while you sleep. Most residential installs take just one or two days of trenching. The cheapest time to book the work is late autumn, right after irrigation companies finish their seasonal winter blowouts and their schedules clear out.
A typical yard costs about $3,400 for a multi-zone system. Instead of draining your savings right before winter, you can finance the project across an interest-free promotional window and treat it like a predictable monthly utility bill.
This 0% window is a firm deadline, not free money. If you still carry a balance when the 18 months are up, regular interest rates will apply to whatever remains, quickly wiping out any savings you got from booking in the off-season.