Spring Turn-On & System Activation
Get your irrigation system running right for the growing season.
Why Spring Activation Matters
After months of freezing temperatures, your irrigation system needs a careful, controlled startup — not just turning the water back on. Rushing the pressurization can crack pipes that were weakened by ice, blow out fittings, or damage valve diaphragms. EMI Irrigation follows a step-by-step activation protocol that gradually pressurizes your system, tests each zone individually, and identifies any winter damage before it becomes a larger problem. We typically begin scheduling spring turn-ons in mid-April and continue through early June, depending on when the last frost risk passes in your area.
What We Check During Activation
Our spring activation is a comprehensive system health check, not just flipping a switch. We slowly open the main water supply to avoid pressure surges, then run each zone individually while inspecting every head for proper operation. We check for tilted, sunken, or broken heads and replace or adjust them on the spot. We verify that each zone is delivering even coverage with no dry spots or overspray onto walkways and driveways. We inspect the backflow preventer for leaks, test the controller programming, and update the watering schedule for spring conditions. If we find any issue — a cracked pipe from frost heave, a valve that is not seating properly, a head that was hit by a plow — we document it and can often repair it during the same visit.
Timing for the Billerica Area
In the greater Billerica area and surrounding towns like Burlington, Chelmsford, Tewksbury, and Bedford, the ideal window for spring turn-on is mid-April through mid-May. Ground temperatures need to be consistently above freezing, and the risk of a late hard frost should be past. We monitor local weather conditions and will advise if scheduling should be pushed back due to an unusually cold spring. Scheduling early in the season guarantees availability — our April and May calendar fills up quickly as homeowners across Lexington, Concord, Waltham, and Arlington all activate their systems within the same few weeks.
What You Get
Frequently Asked Questions
In the Billerica area, we recommend scheduling your spring activation for mid-April through mid-May. Ground temperatures should be consistently above freezing with no hard frost expected. Book early — our spring calendar fills fast, especially in April and May.
Yes. Minor issues like replacing a broken head, adjusting a tilted riser, or tightening a leaking fitting are handled during the same visit at no extra charge for labor (parts only). Larger repairs like cracked pipes or failed valves are quoted separately and can usually be scheduled within the same week.
Yes. Both the 1-Year ($410) and 2-Year ($710) membership plans include spring activation as a core service, along with a mid-season system check-in and fall winterization. Members also receive priority scheduling, so you get the earliest available dates.
Related Services
Fall Winterization & Blow-Out
Compressed air blow-out to protect your pipes from freeze damage. Prevent costly repairs before the first frost.
Learn MoreSprinkler Repair & Maintenance
Broken heads, leaking valves, wiring issues — we diagnose and fix it fast. Same-week service for most repairs.
Learn MoreIrrigation System Installation
Custom-designed sprinkler systems for residential and commercial properties, backed by our industry-leading warranty. We handle everything from layout planning to pipe pulling and head placement — and in two weeks you'll never know we were here.
Learn MoreReady for a Greener Lawn?
Get a free, no-obligation estimate for your property. We'll walk your yard, assess your needs, and give you an honest quote — no pressure, no games.
Mon – Fri: 7:00 AM – 6:00 PM
Sat: 8:00 AM – 2:00 PM