Outdoor living construction and irrigation systems interact more than most homeowners realize. A new concrete patio can cover existing heads, cut existing lines, and require zone modifications. Planning this coordination properly — before you pour — avoids expensive concrete cutting and irrigation repairs after the fact.
Pre-Construction Irrigation Assessment
Before any concrete work begins, we walk the project area with our marking equipment to identify:
- Irrigation heads within the planned patio footprint (these need to be capped or relocated)
- Main irrigation line paths crossing the excavation zone (cutting an irrigation main during excavation is a common and avoidable problem)
- Zone valve locations relative to the new structure
- Existing conduit or sleeve runs that affect where we can excavate
We recommend your irrigation contractor or a system locating service flag these before we begin. If they’re not flagged, we use visual cues, head locations, and conservative excavation practices — but we can’t guarantee we won’t clip an unmarked line.
Capping and Relocating Heads
Any irrigation heads within the patio footprint need to be capped before concrete is poured — you can’t leave active heads under concrete. This work is typically done by your irrigation contractor. We leave the affected areas unexcavated until this step is complete to avoid soil disruption that makes head location harder.
If heads near the patio perimeter need to be relocated to water landscape beds outside the new slab, this is the time to reroute them — before concrete is poured, not after.
Irrigation Sleeves Under Concrete
One of the most valuable things we do on patio projects where future landscape changes are possible: install PVC conduit sleeves under the concrete at the time of pour. A 2-inch or 3-inch PVC sleeve runs from one edge of the slab to the other, capped at both ends. If you ever need to run a new irrigation line across the patio, you pull it through the sleeve rather than cutting concrete.
Sleeves add minimal cost at time of construction. Cutting concrete after the fact to add an irrigation crossing typically costs $400–$1,200 depending on slab thickness and length. We routinely recommend sleeves on any patio pour larger than 200 square feet where landscape beds exist on both sides of the slab.
Outdoor Kitchen Plumbing and Irrigation Coexistence
Outdoor kitchens often require a water supply line for a sink. This potable water line is separate from the irrigation system — one runs off your main domestic supply, the other off a dedicated irrigation meter or backflow preventer assembly. We don’t run potable and irrigation lines in the same trench without separation — this is a cross-connection prevention requirement in Broken Arrow.
Post-Construction Irrigation Restart
After concrete cures and structures are complete, your irrigation contractor should walk the system to verify all relocated heads are correctly aimed, pressure is maintained after any line modifications, and any zones affected by construction are functioning correctly. We coordinate the timing of this with your irrigation contractor as part of project closeout.
Plan Your Project to Include Irrigation Coordination
Call VistaScapes at 918-779-1317 to start with a contractor who builds outdoor living with irrigation coordination as a standard part of the process — not an afterthought.
