Spring Irrigation Startup Checklist for Contractors: What to Inspect and What to Upsell

A complete spring irrigation startup takes 45–90 minutes per residential zone and covers six core areas: the controller, backflow preventer, valve boxes, heads and nozzles, main and lateral lines, and coverage pattern. Done with a documented checklist, every startup also becomes a revenue opportunity — most systems will surface at least one repair, and a third or more will reveal a meaningful upgrade.

Spring is the single highest-volume window in irrigation. Customers are motivated, the ground is soft, and problems that developed over winter are easy to spot. An operator who runs a structured inspection — not just "turn it on and watch it run" — consistently finds $150–$600 in additional work per property that the next contractor would miss.

Why a documented checklist beats winging it

Winging a startup might take less time in the short run. But a checklist does three things winging it can't:

• It protects you. If a head was already cracked when you arrived, your before-and-after photos prove it.
• It sells the job. Walking a customer through a printed (or digital) checklist while pointing at issues closes upsells faster than quoting from memory.
• It builds a paper trail. Your notes from this startup feed next fall's winterization and next spring's renewal.

Using before-and-after photos on every startup job gives you exactly this — documented evidence at every visit that protects you from disputes and makes the upsell conversation visual.

Phase 1: The controller and timer

Start at the brain of the system before you touch a valve.

• Check the date, time, and season program. Controllers that sat all winter often lose their settings after a power outage or battery drain.
• Verify zone run times and start times. Many residential controllers are wildly overprogrammed — this is an easy win to discuss water efficiency.
• Inspect for weatherproofing damage. Outdoor controllers especially show cracks, moisture intrusion, or corroded terminals.
• Look for outdated equipment. A controller more than 8–10 years old is a natural upgrade conversation. Smart controllers (weather-based, Wi-Fi-enabled) typically run $150–$400 installed and practically sell themselves once you explain the water savings.

Upsell flag: Any controller showing moisture damage, missing a rain sensor, or running on a fixed schedule is a candidate for a smart controller upgrade.

Phase 2: Backflow preventer and main shutoff

The backflow preventer is the most code-sensitive part of the system — and one of the most commonly damaged by winter freezes.

• Inspect the preventer visually for cracked housings, missing test cocks, or corroded fittings.
• Open the main shutoff slowly — never fully fast — to avoid water hammer and watch for leaks at unions and fittings.
• Check local testing requirements. In many jurisdictions, backflow preventers require annual testing by a licensed tester. Requirements vary significantly by state and municipality, so always verify with your local water authority. If you're not certified, this is a referral opportunity (or a reason to get certified).

Upsell flag: A cracked or leaking preventer needs same-day repair before you can activate the system. Quote it before turning the water on.

Phase 3: Valve boxes and wiring

Valve boxes take a beating from freeze-thaw cycles, settling soil, and lawnmowers.

• Pop every box lid. Look for standing water, root intrusion, cracked manifolds, and corroded solenoids.
• Check wire connections for bare copper, pulled splices, or waterlogged wire nuts. These cause intermittent zone failures that are hard to diagnose later.
• Test each solenoid manually with the controller before moving on.

Upsell flag: Corroded solenoids ($15–$35 each in parts) are a fast repair. Cracked manifolds or split lateral lines found at this stage justify a written quote on the spot.

Phase 4: Heads and nozzles — the slowest and most valuable inspection step

This is where you make the most money. Walk every zone while it runs.

For spray heads:

• Check for heads that are sunken, tilted, or fully buried — often caused by foot traffic or settling.
• Look for broken caps, cracked bodies, or missing nozzles.
• Watch for heads that don't pop up fully (weak pressure, clogged filter screen) or won't retract (debris, worn wiper seal).

For rotor heads:

• Verify arc and radius settings haven't drifted — a rotor watering a sidewalk or driveway is wasting water and usually an easy fix.
• Listen for grind or chatter, which indicates a worn drive mechanism.

For drip zones:

• Inspect emitters for clogging or blowouts.
• Check supply tubing for UV cracking or rodent damage.

Per-head repair pricing typically runs $8–$25 per head in parts, with most operators charging $45–$120 per head installed depending on head type, access, and regional labor rates. On a 20-zone residential system, finding and fixing four heads is a $200–$400 line item that the customer expects after a proper inspection.

For a deeper look at how drip and spray zones compare from a profitability standpoint, see Drip Irrigation vs Spray Systems: Which Jobs Are More Profitable for Your Business.

Upsell flag: Any zone with more than 2–3 broken or mismatched heads is worth quoting a zone rebuild. A full spray-to-rotor conversion or a drip retrofit on a planting bed is a $200–$600 add-on job most customers will approve when shown the efficiency gain.

Phase 5: Pressure check and line integrity

Low or high pressure causes more hidden damage than most operators document.

• Run each zone and note anything unusual: misting instead of spraying (too high), poor throw distance (too low), or zones that surge then drop off.
• Check the pressure at a head with a simple pitot gauge if you have one — residential systems typically target 30–45 PSI at the head.
• Walk the turf while each zone runs and watch for wet spots, sunken areas, or unusually green patches that suggest a buried leak.

Upsell flag: A pressure regulator ($25–$60 in parts) is an easy install when you find high-pressure misting. Persistent low pressure may point to a main line leak — document it and quote the repair.

Phase 6: Coverage audit and efficiency review

The last pass is the one most contractors skip — and where the long-term customer relationship is built.

• Note dry spots and overlap zones. Both indicate a design problem that fertilizer won't fix.
• Check head spacing in any recently landscaped areas where plants or hardscape have changed coverage.
• Look for mixed precipitation rates — rotors and spray heads on the same zone waste water and can't be scheduled correctly.

Upsell flag: Coverage issues open a conversation about a zone redesign or a new zone addition. A new zone installation typically runs $300–$700 per zone depending on distance from the manifold, head count, and soil conditions — and it's a job that comes with materials markup on top of labor.

Turning the checklist into a quote on the same visit

The fastest path from inspection to additional revenue is a quote the customer can approve before you leave. Walk through your checklist findings verbally, show them the photos, and present a tiered option: a "fix what's broken today" price and a "fix and upgrade" price.

For sending professional quotes with one-tap approval, the customer gets a clean summary of what you found and what it costs — no chasing emails, no re-explaining the job.

What to charge for a spring startup

Spring startup pricing varies by region, system size, and what's included in the visit.

• Basic activation only (controller check, turn on, visual run-through): $60–$120 per visit in most markets
• Full inspection startup (everything in this checklist, documented): $100–$175 per visit
• Startup + minor repairs included (up to a flat cap, e.g., 2 heads): $140–$220 per visit

High cost-of-living markets (coastal metros, Denver, Phoenix, Chicago) often run 20–40% above these ranges. Rural and small-market operators tend to price closer to the lower end but should factor in drive time.

A startup that also finds and quotes $400 in repairs is a $500+ service call, not a $80 turn-on. Structure your pricing and your checklist accordingly.

If you're thinking about how winterization pricing compares to this work, How to Winterize Sprinkler Systems Efficiently and Charge What You're Worth covers the complementary end of the season.

Frequently asked questions

How long does a spring irrigation startup take?

A basic activation takes 30–45 minutes. A full inspection startup following a complete checklist typically takes 60–90 minutes for a residential system with 6–10 zones. Larger or more complex systems run 2+ hours.

What's the most common repair found during spring startup?

Broken or sunken spray heads are the most common find, followed by corroded solenoids and controller battery/programming issues. Most residential systems will have at least one repair item discovered during a thorough startup inspection.

Should I charge separately for the inspection vs. the startup activation?

Most operators bundle them into a single startup fee — customers expect the checkup to be part of the service. The inspection cost is built into the startup price, and any repairs or upgrades found are quoted as add-ons.

Do I need a license to perform spring irrigation startups?

Licensing requirements for irrigation contractors vary by state and sometimes by municipality. Many states require a licensed irrigator for new installations but have different rules for maintenance and startup work. Always verify your specific state and local requirements with the relevant licensing authority.

How do I build a recurring startup client base?

Offer an annual maintenance agreement that includes spring startup and fall winterization as a package. Pre-sell it in the fall when you're already on site. Bundled agreements improve scheduling predictability, reduce price shopping, and give customers an easy reason to rebook every year.

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