Cleaning and maintenance of pond inlets, outlets, pipes, grates and control structures so stormwater flows the way it was designed to.

Inlet and outlet structure maintenance in San Antonio exists because the city's weather does not ease water into the ground, it dumps it. A hard spring storm can drop more rain in an hour than a basin sees in a month of normal weeks, and every inlet, grate, and pipe on the property has to handle that load on command. When one of those structures is partly blocked, the whole pond stops working the way it was designed to.
The signs show up differently depending on where the property sits. In older Alamo Heights lots, volunteer trees take root on the embankment and their roots work into the outlet structure over years. In newer Stone Oak developments, bare slopes on a young build erode fast in the first few storms and send sediment straight into the forebay. Across Bexar County generally, caliche soils and limestone shelves mean water runs off hard and fast instead of soaking in, so grates clog with debris quickly and a pond that drained in a day now takes a week. None of that is unusual here. It is just what the ground and the rain do.
Working with Corral Bros on this scope means we come out, walk the structure with you, and tell you plainly what is clogging the system and what it will take to clear it. We clean inlets and outlets, pull debris from pipes and grates, service the control structure, and run a flow check once the work is done so you know the basin moves water again. Whether you are an HOA board, a property manager, or a GC closing out a site for handover, you get a scope based on what we actually found, not a guess from the parking lot.
We're a local, family-built company that treats your San Antonio property like our own, tidy crews, clear pricing, and inlet & outlet structure maintenance that holds up to Bexar County conditions. Available as a one-time project or part of an ongoing plan.
We schedule a free on-site visit, usually within 48 hours, and walk the structure with whoever manages the property, whether that is a board member, a manager, or a contractor closing out a site. We check the inlet grates, the outlet pipe, and the control structure itself, note what is blocking flow, and give you a straight scope before any work starts.
Most Bexar County basins need a check at least once a year, and more often if the property sits near mature trees or has a history of slow drawdown. Heavy spring storms and the caliche soils here move silt fast, so a structure that was clear last season can have a buried grate or a choked pipe by the next wet month.
We plan around your property, not the other way around. For apartment and retail sites we work sections at a time, keep equipment staged away from entrances and active parking, and coordinate timing with on-site management so residents and customers are not blocked from access while crews clear a grate or pull a forebay.
Caliche-heavy soils and limestone shelves do not let water soak in the way sandier soil does, so runoff moves fast and carries sediment straight into the nearest basin. That shows up as silted forebays, slow-draining ponds, and outlet pipes that look clear on top but are half-blocked below the waterline. We check all of that on the walk, not just what is visible from the bank.
Access and the amount of built-up debris drive most of the cost. A Stone Oak basin with a clean, walkable embankment runs differently than an older Alamo Heights lot with volunteer trees rooted into the slope or a control structure that has not been touched in years. We price it after the walk, once we know what is actually in the pipe and around the grate.
Free, no-pressure estimate from a local crew. Call (737) 404-9343 or request a quote online.