Removal of sediment, leaves, trash and debris from catch basins, storm drains, grates and connected structures to keep drainage moving.

Pull the grate off a catch basin in Blanco Gardens after a hard spring rain and you will usually find the sump packed with pea gravel and river sand that washed down off the slopes above it, with just enough standing water on top to tell you the outlet pipe is already half choked. That is the starting point for catch basin and storm drain cleaning in San Marcos: clearing what the water actually left behind, not a routine once the sediment is already restricting flow.
San Marcos sits on spring-fed riverland with thin upland soils, so a hard rain moves a lot of loose material fast and drops most of it the moment the ground flattens out, right at the inlet. In the older rental streets around Blanco Gardens and Willow Creek, mature trees mean leaf litter clogs the grates every fall on top of the sediment. Newer sections near Kissing Tree often have bare or thinly grassed slopes still settling in, which erode into the basin faster than the turf can hold them, and volunteer saplings along the embankments can work roots into a joint and slow an outlet pipe down to a trickle.
For a property manager or HOA board, working with Corral Bros on this scope means a site walk, a straight accounting of what is sitting in each structure, and a crew that pulls the sump clean, clears the grates and connected lines, and hauls the debris off site. We work the property on a schedule you set, and we flag anything beyond normal buildup, like a cracked structure or a line an engineer needs to look at, instead of guessing at it ourselves.
We're a local, family-built company that treats your San Marcos property like our own, tidy crews, clear pricing, and catch basin & storm drain cleaning that holds up to Hays County conditions. Available as a one-time project or part of an ongoing plan.
We walk the property with you or your maintenance lead, open the grates and basins in question, and note sediment depth, debris load, and any slow drawdown or standing water. From that we give a free, no-obligation estimate, usually scheduled within 48 hours of your call, so you know the scope and timing before anything is committed.
Most San Marcos properties need it at least once or twice a year, but the real trigger is what is on the ground: heavy fall leaf drop near mature trees in Blanco Gardens, a hard rain event that moves sediment off thin upland soil, or a board noticing slower drawdown after storms. We will tell you honestly if a basin can wait or needs attention now.
We schedule around your property's traffic patterns, whether that is university-town rental turnover, an active-adult community like Kissing Tree with regular resident activity, or a retail center with customer parking. Most catch basin and grate work is done from the drive lane or landscape bed, and we coordinate timing with your office so cones and equipment do not sit where residents need to park.
The thin upland soils here erode quickly in a hard rain, so inlets near bare or newly graded slopes fill with sediment faster than older, established turf areas. River-adjacent properties also see more leaf and organic debris washing in. That combination means forebays and sumps here often need a deeper cleanout than what a basin in flatter, older terrain would require.
The number and size of structures, how much sediment and debris has built up, how far the material has to be hauled, and whether we are clearing a few grates or checking connected lines across a larger system all factor in. A site with volunteer trees rooted into an embankment or a basin that has gone unserviced for a while will take more time than routine upkeep, and we price it after we see it, not before.
Free, no-pressure estimate from a local crew. Call (737) 404-9343 or request a quote online.