The answer to 'irrigation installation schedule' is that the timing of your irrigation system installation depends on several factors, including your local climate, the size and complexity of your landscape, and whether you're installing a new system or upgrading an existing one. As a general guideline, the best time to install an irrigation system is in the spring or fall when the weather is mild and plants are actively growing.
For new installations, it's recommended to schedule the work several weeks or months in advance to ensure availability of contractors and materials. This allows time for the system design, permitting, and installation to be completed before the peak watering season. For existing systems, the off-season (fall or winter) is an ideal time to perform maintenance, upgrades, or replacements to have the system ready for the next growing season.