Septic System Installation in Nada, Texas
Licensed, bonded septic installers in Nada and across Colorado County. We handle the soil test, the county permit, and the full install.
Licensed & Bonded
Texas OSF installer
Permitted & Inspected
County health-dept approved
New Installs Only
Built right the first time
Free Estimates
No-obligation, on-site
Instant Estimate
Your Nada septic estimate in 60 seconds
A few quick questions and you'll see your system size and a price range. No obligation, no contact info to start.
What are you installing a septic system for?
We specialize in new installs for homes on rural land.
Nada & Colorado County
New construction, manufactured & mobile homes
Out around Nada, most homes sit on land city sewer never reached, so they run on their own septic system. We install new systems for new builds, manufactured homes, and mobile homes. We run the soil and perc testing, pull the Colorado County permit, and build it to pass inspection the first time.
Get My Free EstimateNada is the little Czech farming community in the deep south of the county — so distinctive that soil scientists named the region's claypan soil series after it. That Nada-series ground perches water after every rain, which is exactly why homes here run aerobic septic systems instead of conventional drainfields.
What we install in Nada
Site Evaluation & Perc Testing
We evaluate your soil and run the percolation test that determines how well your ground absorbs water — the foundation of a system that works.
System Design & Sizing
We size the tank and drainfield to your home's bedroom count and your soil's absorption rate, then engineer a layout that fits your lot.
Permitting & County Approval
We prepare and submit your on-site sewage facility (OSF) permit application and coordinate approvals with your county health department.
Excavation & Site Prep
We prepare the site and excavate for the tank and drainfield with the right grade and setbacks — protecting your wells, structures, and property lines.
Tank Installation
We set the septic tank, connect the inlet and outlet plumbing at the correct grade, and install the effluent filter and risers for easy future access.
Drainfield Installation
We install the drainfield (leach field) that disperses treated effluent safely into the soil, sized to your percolation results and available area.
Built for Colorado County soils
Advanced aerobic treatment systems
A lot of the ground around Nada is heavy clay, and in spots the water table sits high part of the year. On lots like that a standard gravity drainfield won't pass, so you'll need an aerobic system with drip or spray dispersal. We don't guess at it — the free soil test tells us exactly what your lot can take.
We handle Colorado County permitting for Nada
Septic permits around Nada go through Colorado County, not the state. We put the application together, turn in the soil and design paperwork, and stay on it through approval and the final inspection — so you're not the one chasing the county.
In Colorado County, septic permitting runs through the Colorado County Permit Office at 305 Radio Lane in Columbus. The county's published process starts with the landowner's application and fee, then a soil survey and site evaluation by a licensed site evaluator, registered sanitarian, or professional engineer. Non-standard systems — which includes the aerobic units most lots here end up needing — must be designed by a registered engineer or sanitarian, and the design and planning materials go to the Permit Office for approval before a Permit to Construct is issued to the installer. The system can't be covered before the final inspection, spray-dispersal aerobic systems carry the state-required two-year maintenance contract, and permits are valid for one year. We run the whole sequence for you.
New to septic? Our guides cover the basics: How Much Does a New Septic System Cost in Texas? (2026) · What Size Septic Tank Do I Need? · What Is a Perc Test (and Why Does It Matter)?
Local OSSF permitting authority: Colorado County Permit Office
Typical county permit fee: About $250 (county fees change — we confirm the current amount during permitting)
Soil & site conditions near Nada
Colorado County straddles two soil worlds. The northern uplands around Columbus, Weimar, and Alleyton are Post Oak Savannah — fine sandy loams over slowly permeable clay subsoils — while the southern rice prairie around Eagle Lake, Garwood, and Nada sits on very slowly permeable loam-over-claypan ground (the Nada soil series is literally named for the community here). In both halves, water tends to perch on the clay after rain instead of soaking through, which is why many sites fail conventional-drainfield criteria and end up with an aerobic system with spray or drip dispersal. The on-site soil evaluation settles it for your tract.
Why Nada homeowners choose us
Licensed & Bonded
Move forward knowing your project is handled by a licensed, bonded installer.
New Construction & Mobile Home Specialists
We install new systems for new construction, manufactured, and mobile homes — so we're fast, precise, and up to date on the rules.
We Handle the Permits
Soil testing, design documentation, and county OSF approval — all managed for you.
Honest, Upfront Estimates
Clear, itemized quotes after we evaluate your site. No pressure, no surprises.
Local & Dependable
We know your county's requirements and show up when we say we will.
Built to Last
Properly sized, properly installed, and restored clean — a system you can forget about.
How your Nada install works
Instant estimate
Get a ballpark price for your Nada project online in about a minute.
Free on-site evaluation
We test your soil and confirm the right system for your lot.
Permit & design
We handle the Colorado County OSSF permit end to end.
Install & inspection
Professional installation and final county sign-off.
What homeowners say
"They handled our soil test, permit, and full septic install for our new build. The process was clear, the crew stayed on schedule, and the county inspection passed the first time."
The Ramirez Family
Montgomery County, TX
"We needed septic for our manufactured home and they took care of everything from design to approval. Clear pricing, good communication, and no surprises."
Carlos & Elena Martinez
Waller County, TX
"Our property was raw land and we did not know where to start. They sized the system, handled the county paperwork, and kept the project moving."
The Johnson Family
Liberty County, TX
"Responsive, professional, and familiar with the local requirements. They made the permit and installation process much easier than we expected."
Miguel Hernandez
Fort Bend County, TX
Nada septic questions
Do you install septic systems in Nada?
Yes. We install new septic systems all over Nada and Colorado County — for new construction, manufactured homes, and mobile homes.
How much does a septic system cost in Nada?
Most Nada installs run between $9,000 and $15,500 — about $9,000 for a conventional system where the soil allows it, $13,500 for an aerobic spray system, and $15,500 for an aerobic system with drip dispersal. Run the instant estimate for a ballpark, and we'll confirm the exact number once we've seen the lot.
Do I need a permit for a septic system in Nada?
Yes. Any new septic system in Nada needs a Colorado County permit and a soil test before anyone digs — and we take care of all of it for you.
Who issues septic permits in Colorado County, and what does the permit cost?
The Colorado County Permit Office at 305 Radio Lane in Columbus, (979) 732-2435, issues OSSF permits. The fee for a single-family residence is $250 on the county's adopted fee schedule, and it covers the application, permit, inspections, and notice of approval — the same fee whether the system is conventional, aerobic, or another type. We confirm the current figure when we file.
What's the permit process for a new septic system in Colorado County?
The landowner applies at the Permit Office and pays the fee, then a licensed site evaluator, registered sanitarian, or professional engineer does the soil survey and site evaluation. Non-standard systems — including aerobic units — must be designed by a registered engineer or sanitarian, and the design goes to the Permit Office for approval before a Permit to Construct is issued. The system can't be covered until it passes final inspection. We handle every step.
Why do so many Colorado County sites need an aerobic system?
Both halves of the county fight the same problem: water perching on clay. The northern Post Oak Savannah runs sandy loam over slowly permeable clay subsoil, and the southern rice prairie sits on claypan soils like the Nada series, where water stalls after every rain. Either way, many sites fail the TCEQ criteria for a conventional gravity drainfield, and an aerobic system with spray or drip dispersal is the design that passes.
Can you install a septic system for a manufactured or mobile home in Colorado County?
Yes. Manufactured homes on rural tracts around Columbus, Eagle Lake, Weimar, Garwood, and Sheridan need their own permitted on-site system, and the county process is the same as for a site-built house — application, soil survey and site evaluation, approved design, Permit to Construct, licensed installation, and final inspection before cover.
Does an aerobic system in Colorado County need a maintenance contract?
Yes — spray and surface-irrigation aerobic systems carry the state-required two-year maintenance contract from the start, per TCEQ 30 TAC Chapter 285. That contract is part of the permit packet, not an afterthought, and we set it up as part of your install so the county has everything it needs to approve the system.
How long is a Colorado County septic permit good for?
Permits are valid for one year from issuance, so the install needs to happen inside that window. In practice that's not a problem — once the design is approved and the Permit to Construct is issued, we schedule the install and the final inspection well inside the year. If a project stalls, the permit can be renewed through the Permit Office.
Check your Nada lot before you buy or build
Soil rating, flood zone, wetlands, and the likely septic system type for any Nada address — free, in seconds.
Get your free Nada septic estimate
Tell us a little about your Nada property and we'll size your system and set up a free visit. No pressure, no obligation.