Sprinkler Valve & Solenoid Repair When a Zone Won't Turn On — or Off
Bad solenoid, burned coil, stuck diaphragm, or wiring fault — we diagnose the actual valve problem and replace what's needed, not what's convenient.
Sprinkler Valve & Solenoid Repair in Miami
When a single zone won't turn on (or won't turn off), the failure is almost always at the valve. The two most common causes are a burned-out solenoid (the electrical part the controller energizes) and a stuck diaphragm inside the valve body itself. Both are repairable — and on most residential systems, neither requires digging up the manifold.
Diagnosing valve problems takes a meter and some knowledge. We test the wire from controller to valve to confirm voltage is reaching the solenoid, then test the solenoid resistance to confirm the coil is intact. If the wiring and solenoid are both good but the valve still won't open, the diaphragm or seat is the culprit.
We carry the most common solenoids and valve rebuild kits on the truck — Rain Bird DV/DVF, Hunter PGV/ICV, Irritrol, Toro, and Orbit — so most repairs finish in one visit.
What's Included
- Solenoid diagnosis & replacement
- Valve diaphragm rebuild
- Manifold rebuild & valve replacement
- Zone wiring fault diagnosis
- Indexing valve repair (older systems)
- Backflow preventer service
Common Problems We Solve
Sound familiar? Here's what we usually find — and how we fix it.
Zone won't activate when scheduled
Either no voltage reaching the valve (wiring or controller fault) or a failed solenoid. We meter the wire run and replace whichever component failed.
Zone runs continuously and won't shut off
Stuck valve diaphragm — usually debris under the diaphragm or a torn diaphragm seal. We rebuild the valve or replace it if the body is cracked.
Water dripping from a valve box
Leaking solenoid o-ring, cracked valve body, or failed bonnet seal. Quick rebuild or replacement.
Multiple zones suddenly stopped working
Common ground wire fault between controller and valve manifold. We trace the wire, find the break, and repair or rerun it.
Our Process
Same approach on every job — diagnosis first, then fix.
Confirm the symptom
Run the failing zone from the controller and from the bleed screw to determine if the issue is electrical or hydraulic.
Meter the circuit
Test voltage at the controller, voltage at the valve, and solenoid resistance to isolate the failure.
Repair at the source
Replace the solenoid, rebuild the diaphragm, replace the valve, or repair the wiring depending on what failed.
Test & document
Cycle the zone several times to confirm proper open/close, document the repair, and back it with our 1-year labor warranty.
Frequently Asked Questions
About valve repair in Miami-Dade & Broward.
How much does it cost to replace a sprinkler valve?
Solenoid-only replacement runs $85–$140. Full valve replacement is $125–$225 depending on valve size and accessibility. We confirm the price in writing before starting.
Can a valve be repaired without digging?
Most modern valves have a removable bonnet, so the solenoid and diaphragm can be serviced from above without digging. If the entire valve body needs replacement, we may need to expose the manifold connections.
Why does my zone keep running after the controller turns off?
The valve diaphragm is stuck open — usually debris in the valve or a torn diaphragm. The fix is to rebuild or replace the valve. In the meantime, you can shut off the system at the main shutoff to stop water waste.
Do you service older indexing valves?
Yes. Many older Florida homes still use indexing valves (a single mechanical valve that sequences zones). We service, rebuild, or convert them to modern electric solenoid systems.
Helpful Guides for Valve Repair
Practical reads to help you understand the problem and what to expect.
Valve Repair Near You
Top cities we serve for this service.
Ready to Schedule Valve Repair?
Free estimate, no service call fee, 1-year labor warranty.