Septic System Installation in Cypress, Texas
Licensed, bonded septic installers serving Cypress and the surrounding Harris County area — soil testing, permitting, and install, handled end to end.
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 Cypress septic estimate in 60 seconds
Answer a few quick questions and see your recommended system size and price range — no obligation.
What are you installing a septic system for?
We specialize in new installs for homes on rural land.
Cypress & Harris County
New construction, manufactured & mobile homes
Homes around Cypress, in unincorporated Harris County, run on their own on-site septic system instead of city sewer. We design, permit, and install new systems for new construction, manufactured, and mobile homes — handling the soil and percolation testing and the county OSSF permitting from start to final inspection.
Get My Free EstimateCypress sits in fast-growing northwest Harris County, where many acreage lots and new manufactured homes north of US-290 are beyond municipal sewer and rely on a properly sized aerobic system with drip dispersal.
What we install in Cypress
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
Many lots in and around Cypress have clay-heavy soil or a high seasonal water table — conditions that usually call for an aerobic treatment unit with drip or spray dispersal rather than a conventional drainfield. Your free on-site soil evaluation confirms the right system before we size it.
We handle Harris County permitting for Cypress
On-site sewage facilities (OSSF) around Cypress are permitted at the Harris County level. We prepare the application, submit the soil and design documentation, and see it through approval and final inspection.
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 Cypress
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 Cypress 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 Cypress install works
Instant estimate
Get a ballpark price for your Cypress 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
Cypress septic questions
Do you install septic systems in Cypress?
Yes — we design, permit, and install new on-site septic systems throughout Cypress and Harris County for new construction, manufactured, and mobile homes.
How much does a septic system cost in Cypress?
Most installs land between $12,000 and $20,000 depending on your soil, system type, and drainfield size. Use our instant estimator for a ballpark, then we confirm the exact price after a free on-site evaluation.
Do I need a permit for a septic system in Cypress?
Yes — a new OSSF in Cypress requires a Harris County permit plus a soil/site evaluation before installation. We handle the full permitting process 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 Cypress septic estimate
Tell us about your Cypress property and we'll size your system and schedule a free, no-obligation on-site evaluation.