Septic System Installation in Sheldon, Texas
Licensed, bonded septic installers in Sheldon and across Harris 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 Sheldon 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.
Sheldon & Harris County
New construction, manufactured & mobile homes
Out around Sheldon, 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 Harris County permit, and build it to pass inspection the first time.
Get My Free EstimateOut near Sheldon Lake and US 90 along the Beltway 8 corridor, Sheldon has kept a semi-rural feel with big lots and country homesteads. Plenty of those places are past where city sewer runs, so they're on private septic.
What we install in Sheldon
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 Harris County soils
Advanced aerobic treatment systems
A lot of the ground around Sheldon 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 Harris County permitting for Sheldon
Septic permits around Sheldon go through Harris 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.
If you're building in unincorporated Harris County (outside any city limits), your septic permit goes through the Harris County Office of the County Engineer's Watershed Protection group, which handles OSSF permitting. The system is designed and stamped by a licensed Texas professional engineer or registered sanitarian, and a registered site evaluator or PE completes the required on-site soil evaluation. We file everything through the county's online ePermits portal, the recorded Affidavit to the Public, the site evaluation, the septic design and site plan, and a maintenance contract from a licensed provider. Once the county reviews the plans and issues the Authorization to Construct, we build it, call in each inspection at least 24 hours ahead, and your permanent power is released only after those inspections pass.
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: Harris County Office of the County Engineer — Wastewater Quality Permitting
Typical county permit fee: Set by the county — we confirm the current amount during permitting.
Soil & site conditions near Sheldon
Harris County sits on the flat Gulf Coast prairie, and most lots here are clay, clay loam, or sandy clay loam with a water table that rises close to the surface in the wet season. Those slow-draining clay soils often fall into the higher TCEQ soil classes (think Class IV clay), which usually points toward an aerobic treatment unit with drip or spray dispersal rather than a conventional gravity drainfield. The required on-site soil evaluation is what sets your actual soil class and the right system for your property.
Why Sheldon 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 Sheldon install works
Instant estimate
Get a ballpark price for your Sheldon 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 Harris 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
Sheldon septic questions
Do you install septic systems in Sheldon?
Yes. We install new septic systems all over Sheldon and Harris County — for new construction, manufactured homes, and mobile homes.
How much does a septic system cost in Sheldon?
Most Sheldon installs run between $12,000 and $20,000, depending on your soil, the system type, and how much drainfield you need. Run the instant estimate for a ballpark, and we'll give you a firm number once we've seen the lot.
Do I need a permit for a septic system in Sheldon?
Yes. Any new septic system in Sheldon needs a Harris County permit and a soil test before anyone digs — and we take care of all of it for you.
Who issues the septic permit in Harris County?
Septic (OSSF) permits in unincorporated Harris County are issued by the Harris County Office of the County Engineer's Watershed Protection group, which runs Wastewater Quality Permitting. You can reach the permits office at (713) 274-3900, and applications are submitted through the county's online ePermits portal.
How much is the Harris County septic permit fee?
Harris County doesn't publish a flat base fee for an OSSF permit, so we don't quote a set dollar amount. The exact county permit fee is confirmed during the permitting process. If you'd like the figure straight from the source, the permits office at (713) 274-3900 can confirm it for your project.
What are the steps to get a septic system permitted here?
First, a licensed Texas PE or registered sanitarian designs the system, and a registered site evaluator or PE completes an on-site soil evaluation. Then the application goes through the ePermits portal with the recorded Affidavit to the Public, the site evaluation, the septic design and site plan, and a maintenance contract from a licensed provider. After the county reviews the plans it issues an Authorization to Construct; the licensed installer then builds the system and calls in inspections at least 24 hours in advance.
Why do so many Harris County homes need an aerobic system instead of a conventional one?
Because of the soil. Harris County's flat Gulf Coast prairie is mostly clay, clay loam, and sandy clay loam with a seasonally high water table, and those soils drain slowly. They often grade into the higher TCEQ soil classes (Class IV clay), which typically favors an aerobic treatment unit with drip or spray dispersal over a conventional gravity drainfield. Your required on-site soil evaluation is what confirms the actual class for your lot.
Can you install a septic system for a new manufactured or mobile home in Harris County?
Yes. A new manufactured or mobile home on a lot outside the city limits needs its own permitted, properly sized septic system just like a site-built house. The same Harris County process applies: an engineered design, an on-site soil evaluation, the ePermits submittal, an Authorization to Construct, and county inspections before permanent power is released.
Does this apply if my property is inside Houston or another city's limits?
Harris County's OSSF program covers unincorporated areas only, not property inside a city's limits. If your lot is in unincorporated Harris County, the County Engineer's Watershed Protection group handles your septic permit. If you're inside a city's limits, permitting may run through that city instead, so it's worth confirming where your lot falls before you start.
Get your free Sheldon septic estimate
Tell us a little about your Sheldon property and we'll size your system and set up a free visit. No pressure, no obligation.