From soil evaluation to county permits to full installation — we handle every step of your septic system project on Laredo and Webb County's Type 2, 3, and 4 soils.
From permits and site evaluations to land clearing, excavation, and water harvesting — we bring the equipment and the expertise to get your project done right.
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We handle the full OSSF permit process with Webb County and surrounding jurisdictions. Know your project is compliant before breaking ground.
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Soil testing and site assessment to determine the right system for your property. Required before any installation — we make it simple.
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Full septic system installations for residential and commercial properties. Built to Texas state code and designed for South Texas soil conditions.
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Brush removal, tree clearing, and full site preparation for new home builds, agricultural use, fencing, roads, or any raw land project. We leave your property clean and ready for whatever comes next.
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Utility trenching for water lines, electrical conduit, gas, irrigation, drainage, and more. Whatever needs to go underground, we dig it cleanly and accurately — any depth, any application.
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Skid steer grading and leveling for new home pads, driveways, construction sites, yards, and any surface prep project. We create the flat, solid foundation your build demands.
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We design and install underground rainwater collection systems that capture runoff from your roof gutters and store it in a buried conservation tank — giving you a reliable, off-grid water supply for South Texas living.
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Pre-purchase and routine inspections for homeowners, real estate buyers, and property managers throughout Webb County.
South Texas Septics LLC was built on the ground — literally. We know Webb County soil, Texas state regulations, and what your property needs.
We carry every license required by Texas state law to design, permit, and install on-site sewage facilities in Webb County.
We live and work here. We understand the clay soils, the heat, the county permit offices, and the specific challenges of building in South Texas.
We know the local permit process inside and out. No delays from paperwork — we handle the filing so your project stays on schedule.
When you call, you reach someone who knows your project. No call centers, no runaround — just straight answers from the people doing the work.
From raw land to permitted, installed, and inspected — we walk with every customer through the full process so nothing falls through the cracks.
Real reviews from real customers across Webb County and South Texas.
"We are very satisfied with the work done by South Texas Septic Systems. The entire process was smooth, professional, and completed on time. Dorian Rangel was awesome to work with — very knowledgeable, helpful, and always available to answer questions."
"Great customer service. Dorian helped me step-by-step with permits and paperwork."
"We had a septic tank installed on our property, and the experience was fantastic. The technician was extremely polite and handled the entire process from permits to installation with great care and professionalism. Highly recommend!"
"Mr. Rangel was extremely helpful and took the time to explain the process and any adjustments he had to make. It's been over a year and the system has been working as it should. Thanks again, Mr. Rangel."
We serve Webb County and the surrounding South Texas region. Not sure if we cover your area? Call us — we'll let you know.
Straight answers to the questions we hear most — from what affects your cost to protecting your system in heavy rain. Written by a licensed OSSF contractor.
Follow one flush from the home’s plumbing to the tank and drainfield, with each stage explained clearly.
Read More →See how practical water-saving devices reduce daily strain and help protect a septic system from failure.
Read More →Learn how third-party financing can turn a large septic project into manageable monthly payments.
Read More →Understand the county reviews, site evaluation, realistic timeline, installation, and final inspection.
Read More →How flooding exposed unsafe systems and showed why proper septic work protects the whole community.
Read More →The first and most important step of any septic project — what it involves and how it protects you.
Read More →Why every system is priced differently — soil, structure size and use, slope, stub-out, and distance.
Read More →How your soil type determines which drainfield you get — and why ET beds on clay cost more.
Read More →Engineer certification, added permit fees, and tank anchoring for buoyancy control in flood zones.
Read More →What to do when the rain keeps coming — warning signs, what to avoid, and how to protect your drainfield.
Read More →Every property is different — soil type, home size, slope, and distance all shape the design. A site evaluation gives you the exact number for your land. Read our full cost guide →
Yes, in almost every case. We prepare and file the complete OSSF permit package with Webb County on your behalf, start to finish.
Installation itself takes 2–3 days. County paperwork and permit review typically take several weeks, so we always recommend starting the process early.
We install standard systems: Infiltrator polypropylene tanks with trench drainfields on Type 2 and 3 soils, or ET beds with imported sand backfill on Type 4 clay.
Laredo and Webb County, plus Zapata, Jim Hogg, Starr, Duval, LaSalle, and Maverick counties.
Tell us about your project and we'll get back to you promptly. For faster response, call us directly.