Usually, the price for irrigation opening is $100 + tax. The price can vary if the system is commercial or big residential.
GET IT NOWBasically, the price for winterization is $100 + tax. The cost can vary if the system is commercial or big residential.
GET IT NOWPrices start at $550 per zone. We use Hunter and Rain Bird materials. 5-year warranty. Parts and labor are included.
GET IT NOWLED fixtures start from $250 due to long lifespan and reduced maintenance costs. Parts & labour are included.
GET IT NOWResidential sod averages $1.10–$3.50 per sq.ft. Commercial starts at $0.75. Labour is included.
GET IT NOWFrench drainage installation cost ranges $25–$40 per foot depending on complexity. Parts and labor are included.
GET IT NOWFull inspection, diagnostics, pressure testing, and system adjustments.
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Sprinkler heads leaking after shut off can be normal low-head drainage or a sign that a valve is not sealing.
Sprinkler heads leaking after shut off can be normal or a real repair issue depending on how long it lasts. Yes, a short leak from the lowest heads is often normal low-head drainage: leftover water in the pipe drains out after the valve closes. No, it is not normal if the leaking continues for a long time, happens every day, or keeps the ground wet. Continuous leaking usually means the zone valve is weeping because debris or a damaged diaphragm is letting pressurized water pass through. Check duration first. A few minutes suggests drainage; constant seepage points to the valve.
| Question | Certain Answer |
|---|---|
| Most likely cause | Short leak: low-head drainage. Constant leak: valve not sealing. |
| Slope fact | The lowest head on a sloped zone is the most likely place for leftover pipe water to drain. |
| Normal or not? | Normal for a few minutes; not normal if it continues or returns when the system is off. |
| Best next step | Time the leak, identify the lowest head, then inspect the valve if water keeps seeping. |
Water left in the pipe drains out of the lowest sprinkler heads after the zone shuts off.
A damaged diaphragm or debris in the valve can allow water to slowly pass through after shutoff.
Sloped Toronto yards often drain through the lowest heads unless check-valve heads are installed.
Check-valve sprinkler heads can reduce drainage from low heads in many situations.
The difference is duration. Low-head drainage usually stops once the pipe empties. Valve seepage keeps feeding water into the zone, so heads may continue leaking long after the system turns off.
Replacing the lowest heads with check-valve models can help drainage, but it will not fix a valve that is leaking internally.
Additional factual note: Check-valve sprinkler heads can reduce low-head drainage by holding water inside the lateral line. They help with gravity drainage but do not fix a valve that is leaking internally.
Additional factual note: Valve seepage can create mossy, constantly wet spots and may slowly raise water use. If multiple heads on one zone drip long after shutoff, inspect the valve before replacing nozzles.
A short drain from low heads can be normal. Continuous leaking is not.
It is leftover water draining from pipes through the lowest sprinkler heads.
They can stop low-head drainage but will not repair a leaking valve.
It may be the lowest head on the zone or that head may have a damaged seal.
Need help with sprinkler valves, heads, timers, wiring, rain sensors, or low-pressure zones in Toronto or the GTA? A proper diagnosis can prevent wasted water, lawn damage, and repeat repairs.
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