Most expensive irrigation repairs were preventable: a freeze failure that a winterization would have stopped, a summer of high water bills from a leak a spring inspection would have caught. A maintenance program is the unglamorous reason some systems run for 25 years while identical ones fail at 12. Here is what a real one includes in New Jersey.
Spring: the start-up that is more than turning it on
A proper spring start-up pressurizes the main slowly. Slamming the valve open water-hammers a winter-dry system and can pop fittings. Then, zone by zone: every head checked for damage and alignment, valves watched for clean open and close, the controller reprogrammed for the season (not last year's schedule), sensors tested, and the backflow assembly inspected. This is also when winter damage announces itself, while it is still a small fix.
Early summer: the mid-season tune
By June the landscape has changed. Plantings grew, sun patterns shifted, the lawn's needs went up. The mid-season visit adjusts arcs and run times, checks for heads knocked out of line by mowing, and reads early-season water usage for signs of a slow leak. On smart systems, this is the visit where the weather-based settings get trued up against how the property actually looks.
The compliance item: annual backflow testing
If your system connects to potable water, it has a backflow prevention assembly, and New Jersey water purveyors generally require periodic backflow testing by a certified tester, with documentation filed. Our staff includes certified backflow testers, so the test and the paperwork happen inside the program instead of as a separate vendor and a separate appointment. More on backflow testing.
Fall: winterization, the one visit you cannot skip
Every program anchors on the fall blowout: compressed-air purge, zone by zone, before the first hard freeze, typically early October through mid-November here. In program terms, winterization customers get route priority in fall and first-in-line spring start-ups. Read the winterization guide.

The math, without the numbers
A program does not eliminate repairs. It converts surprise failures into scheduled small fixes, and it keeps water bills honest. Compare a routine visit against a cracked backflow assembly, a burst lateral line, and the lawn restoration that follows, and the program wins in almost every year. For commercial properties the same logic scales up: see our guide for property managers.
Frequently asked questions
Spring start-up, mid-season inspection and adjustment, fall winterization, priority scheduling, and backflow testing coordination. Programs are sized to the property; call and we will scope yours.
Usually yes. Small systems have the same two failure seasons (spring pressure-up, fall freeze) as large ones. The plan mostly pays for itself the first time it catches a leak early.
Yes. A program starts with a baseline inspection, and we maintain systems regardless of who installed them or what brand they are.
Typically April, once hard freezes are done. Winterization customers get scheduled first.
It is the most common way bills come down: fixing silent leaks, correcting overwatering schedules, and adding weather-based control.