Rochester & Oakland County Sprinkler Repair
We diagnose the root cause (not just the symptom) with zone-by-zone testing and pressure measurement. Then we fix it once and back it with a 2-year warranty. No more paying for the same repair every summer.
| Patch-Only Visit | Green Guru Root-Cause Workflow |
|---|---|
| Replace visible failure only | Diagnose upstream pressure/valve/coverage drivers |
| Short-term fix, repeat risk stays high | Lower callback risk through system-level correction |
| Limited verification under flow | Zone-by-zone verification and documented follow-through |
| No strategic reliability plan | Clear next-step path (repair, upgrade, or monitoring) |
Most contractors replace the broken part (head, valve, riser) without asking WHY it failed. Result? You pay for the same repair next season — or worse, mid-season when your lawn is already stressed.
Green Guru fixes it differently: We find the upstream cause (excess pressure, valve debris, coverage mismatch, hidden leak) and fix that — so it doesn't come back.
📞 Or call (248) 790-0571 — we answer! • Service call: $75 + $2.50/zone • Plan members save 10%
If any of these sound familiar, we can help:
What you see: One or more zones don't activate, or they run constantly and won't stop.
Root causes we find:
How we fix it: Zone-by-zone run test + voltage check at valve → rebuild or replace valve → verify shutoff under load → document for future service.
What you see: Water bill doubled or tripled, soft/soggy spots in lawn, constant pooling water, or the sound of running water when system is "off."
Root causes we find:
How we fix it: Flow testing + pressure analysis → locate leak source → excavate and repair → add check valves or PRV if needed → verify no ongoing loss.
💡 Pro tip: A stuck valve can waste 6,300+ gallons/month ($200+ water bill). SRMS flow monitoring catches these within minutes, not hours.
What you see: Sprinkler heads create fog instead of spray pattern, heads pop off risers, or you hear high-pitched hissing.
Root cause: Excess water pressure (typically 90-120+ PSI when it should be 50-70 PSI).
Why it matters: High pressure causes:
How we fix it: Measure pressure under flow (not just static) → install Pressure Reducing Valve (PRV) or pressure-regulating spray heads → verify performance in target range (50-65 PSI).
What you see: Lawn has dry brown patches despite "working" sprinklers, or some areas flood while others stay dry.
Root causes we find:
How we fix it: Zone-by-zone coverage audit → match nozzles for consistent precipitation rate → adjust arcs to eliminate overspray → raise sunken heads → verify uniform coverage.
We don't guess. We diagnose, explain, and fix — in that order.
We run every zone and measure pressure under flow (not just static pressure). Then we identify the upstream driver: valve failure, pressure issues, wiring faults, coverage mismatches, or hidden leaks.
Why this matters: If we just replace a broken head without fixing the excess pressure that broke it, you'll be calling us again next month.
You see exactly what failed and why it failed. We show you the options: quick patch vs. long-term fix. Then we quote the work — no surprises.
Transparency promise: If buried access or site constraints affect labor, we scope it during inspection and quote the clean path before starting.
We complete approved repairs using quality parts and verify performance under load. All irrigation work is backed by our 2-year service warranty (service-scoped, requires seasonal activation + winterization).
We record what was repaired, what's on the "watch list," and what needs scoped follow-up. This makes future service faster and prevents repeat diagnostics.
Service-first standard: Your system notes stay in our records so the next technician (or next season) doesn't start from scratch.
Est. 2015
11 years serving Rochester & Oakland County
Residential • HOA • Commercial
Here's what separates a patch job from a permanent fix:
The symptom: Misting, heads popping off, valves leaking, frequent failures.
The root cause: Source pressure above 80 PSI under flow forces water through components faster than they're designed to handle.
The fix: Install a Pressure Reducing Valve (PRV) to regulate pressure to 50-65 PSI. This prevents repeat failures and reduces water waste by 20-30%.
💡 Case study: 90% of "heads keep breaking" service calls trace back to unregulated pressure. Fix pressure once, stop replacing heads every year.
The symptom: Zone won't turn on/off, water pools around valve box, constant dripping.
Common causes:
The fix: Rebuild valve (new diaphragm + solenoid) or replace with Rain Bird DV Series valve → test close/open cycle under pressure → document valve location for future access.
The symptom: Several zones won't run, or entire system has low pressure.
The root cause: Master valve (MV) controls flow to all zones. If MV solenoid fails or diaphragm leaks, it looks like every zone is broken.
The fix: Diagnose master valve first → repair/replace → verify downstream zones restore normal operation. See: Master valves: a serviceable baseline
The symptom: Brown patches despite "working" sprinklers.
The root cause: Mixing different nozzle types (spray heads + rotors, or different precipitation rates) on the same zone creates uneven water distribution.
The fix: Match nozzles to same precipitation rate → adjust arcs to eliminate overspray → verify uniform coverage with catch-cup test.
The symptom: Water bill doubled, soft spots in lawn, or constant pooling.
The root cause: Underground lateral break, cracked riser, or valve that won't close.
The fix: Flow testing to locate leak → excavate and repair → add check valves for low-head drainage → recommend SRMS flow monitoring to catch future leaks within minutes.
⚠️ Real cost: A stuck valve running 24/7 wastes 6,300 gallons/month = $200-400 water bill + landscape damage.
Service plan members get priority 72-hour or 24-hour response during peak season + 10% off all repairs.
We stock professional-grade components that prevent repeat failures:
See full product catalog: Green Guru Products →
Green Guru sprinkler repair costs $75 service call + $2.50 per zone for tune-ups and diagnostics (example: 8 zones = $95 total). Actual repairs like valve replacement, leak fixes, or head adjustments are quoted on-site after diagnosis. Parts and materials are billed separately. Service plan members receive 10% off labor and materials.
Common causes: (1) Faulty valve solenoid (electrical coil burned out), (2) Broken wire connection, (3) Stuck valve diaphragm (debris or torn rubber), (4) Controller programming error, or (5) Master valve failure affecting multiple zones. Green Guru diagnoses the root cause with zone-by-zone testing and voltage checks before recommending repairs.
Signs of hidden irrigation leaks: Unexplained high water bills, soft/soggy spots in lawn, constant pooling water, or zones that won't shut off. Green Guru uses flow testing and pressure analysis to locate underground breaks, cracked risers, and leaking valves. A stuck valve can waste 6,300+ gallons/month ($200-400 water bill). SRMS flow monitoring catches these leaks within minutes instead of waiting for your water bill.
Misting is caused by excess water pressure (typically above 80 PSI). High pressure forces water through nozzles too fast, creating fog instead of proper spray pattern. This wastes 20-30% of water to evaporation and accelerates component wear. Solution: Install a Pressure Reducing Valve (PRV) to regulate pressure to 50-65 PSI, or use pressure-regulating spray heads. Green Guru measures pressure under flow (not just static) to confirm before recommending fixes.
Repeat failures happen when contractors patch the symptom (replace a broken head) without fixing the root cause (the excess pressure that keeps breaking heads). Green Guru diagnoses upstream issues — pressure problems, valve failures, coverage mismatches — so repairs actually last. All irrigation work is backed by our 2-year service warranty.
Yes. Green Guru provides a 2-year service warranty on irrigation repairs. Warranty is service-scoped and requires seasonal activation and winterization to maintain coverage. See full terms at greenguru.us/warranty.html
Yes. Valves that won't shut off are usually caused by debris in the diaphragm, worn seals, or stuck solenoid plunger. Green Guru rebuilds or replaces valves using quality parts like Rain Bird DV Series valves and verifies proper shutoff under load. We also check for master valve issues that can affect multiple zones simultaneously.
Early summer (May-June) is ideal for sprinkler tune-ups and repairs. This catches problems before heat stress damages the lawn and before peak-season scheduling fills up. Service plan members get priority 72-hour (Essentials) or 24-hour (Elite) response during peak season.
Availability varies by season. During peak season (June-August), Elite plan members receive priority 24-hour scheduling. For urgent issues like major leaks or system failures, call (248) 790-0571 and we'll prioritize based on severity and schedule capacity.
Yes. Lost lids and buried valve boxes create repeat failures and diagnostic delays. We locate components, restore access, and recommend serviceable enclosure standards so future service stays fast and predictable. See: Lost valve boxes: finding what's buried
When source pressure exceeds 80 PSI under flow, a PRV prevents accelerated wear, misting waste, and repeat head failures. We measure pressure during diagnostics and recommend regulation when it will reduce long-term repair costs.
Service plans turn one-off repairs into year-round reliability:
3 annual visits + priority scheduling
From $300/year (≤8 zones)
Compare Plans & PricingPair with SRMS Tier 3 (Response) for leak alerts + automatic follow-through.