Septic & Environmental Services for Sustainable Development
Our team provides Texas septic system design, engineering, permitting, installation, and maintenance for commercial properties We handle aerobic and conventional onsite wastewater systems while helping you navigate soil evaluations, environmental permitting, and TCEQ requirements.
Aerobic Septic
Conventional Septic
Septic Design
TCEQ / OSSF Permitting
Installation & Repair
Maintenance
01 - Septic Systems
Aerobic and
Conventional Septic
Systems.
We take your septic system from initial site evaluation and design through permitting, installation, and ongoing maintenance. Our team works with aerobic and conventional onsite wastewater systems across the Greater Houston area, combining septic engineering services with hands-on installation experience. This connected approach helps us solve site challenges early, meet TCEQ requirements, and keep your project moving without unnecessary handoffs.
What We Install and Service
- Aerobic Treatment Units with surface application
- Conventional gravity-fed septic systems
- Drip irrigation aerobic systems
- Pressure-dosed conventional systems
- Commercial septic systems
- Septic system replacement and major repair
- Real estate transaction inspections and evaluations
- Routine maintenance and service contracts
- Tank pumping coordination
- County Authorized Agent permit applications
Septic Systems
Our professional engineers at ENGCO provides septic engineering services that cover the planning, evaluation, permitting, and compliance needed for onsite wastewater systems. We help you understand your site requirements and develop practical solutions that meet Texas standards while keeping your project moving.
01
Environmental Consulting
Our environmental engineering services help identify site conditions and requirements that could affect your project. We evaluate key environmental factors early so you can make informed decisions before design, permitting, or construction begins.
- Site and environmental evaluations
- Wastewater planning and consulting
- Environmental permitting support
- Project-specific recommendations
02
Soil Testing
Proper Texas septic system design starts with understanding the soil and site conditions. Our team performs soil evaluations to determine how the property can support an onsite wastewater system and what type of septic design may be appropriate.
- Soil and site evaluations
- Drainage condition review
- Septic system suitability
- Design requirement identification
03
Inspection Process & Permitting
Our engineers helps guide your septic project through required evaluations, documentation, inspections, and environmental permitting. We coordinate the process so you know what is required and what comes next before installation can move forward.
- Permit application support
- Required site documentation
- Inspection coordination
- Agency approval assistance
04
Regulatory Compliance
Septic systems must meet state and local requirements for design, installation, and operation. Our team develops onsite wastewater systems with applicable TCEQ requirements and local regulations in mind, helping you avoid compliance issues that could delay your project.
- TCEQ requirement review
- Local regulation coordination
- Code-compliant septic design
- Installation compliance support
02 - Frequently Asked
Questions
owners ask
before they
engage.
Straight answers to what property owners, builders, and developers ask most about septic design, permitting, installation, and service across Texas.
How much does a new aerobic septic system cost in Texas?
Typical costs range from $8,000–$15,000 depending on site conditions, soil type, system size, distance to utilities, and whether electrical service or pumps are required.
How long does a new aerobic septic installation take?
Most new aerobic septic projects run 6–12 weeks from initial evaluation through permitting, installation, and final county inspection. County Authorized Agent review time, weather, site access, and system complexity can affect the schedule.
Do you offer maintenance contracts on aerobic systems?
Yes. Aerobic systems require an active maintenance contract with a licensed provider. Maintenance typically includes inspections, annual reporting to the county Authorized Agent, sample collection where required, and service support for alarms or system issues.
My existing septic is failing. Can you repair it instead of replacing the whole system?
ENGCO starts with diagnostic review. Pump, control panel, electrical, line, or distribution issues may be repairable. Drain field saturation, tank failure, end-of-life systems, or noncompliant legacy systems may require partial or full replacement.
I’m buying a rural property and need a septic inspection within my option period. Can you turn it around quickly?
This is often possible for typical Texas option periods, but timing must be confirmed during scheduling. Weather, property access, tank pumping coordination, and permit-record availability can affect turnaround.
Do you work in my county?
ENGCO works across the Greater Houston region and many surrounding Texas counties. If you are not sure whether we cover your area, contact the team — we may already have project history or county Authorized Agent relationships there.
What’s the difference between aerobic and conventional septic? Which do I need?
Conventional systems use gravity and require suitable soils and larger lots. Aerobic systems use forced air treatment, can work on smaller or more constrained lots, and require an active maintenance contract. The correct system depends on soil conditions, acreage, county rules, and intended use.
Reliable septic and environmental solutions for every property.
Every property has unique environmental conditions that affect septic system design and long-term performance. Our team evaluates your site, explains your options, and develops compliant solutions that protect your investment while meeting local regulations.
Still have septic or environmental questions?
Choosing the right septic system starts with understanding your property's needs. Contact our team to discuss your project, and we'll help you find the best solution for your site and future plans.
01 How do I know if my property needs a conventional or aerobic septic system?
The right system depends on your property's soil conditions, available space, groundwater levels, and local health regulations. Our team performs a complete site evaluation before recommending the best option for your property. We explain each system so you can make a confident decision that fits your long-term needs.
02 What happens during a septic site evaluation?
We evaluate your property's soil, drainage, topography, and available installation area to determine what type of system will perform best. This information helps us design a septic system that meets regulatory requirements while providing dependable operation. Our goal is to identify potential challenges before installation begins.
03Can ENGCO design septic systems for new home construction?
Yes. We regularly work with homeowners, custom home builders, and developers to design septic systems for new construction projects. Our team coordinates the septic design with your overall site plan so everything works together from the start.
04 Why is environmental compliance important when installing a septic system?
Environmental regulations are designed to protect groundwater, nearby waterways, and surrounding properties. Our team prepares the required documentation and civil site designs systems that meet applicable standards before installation begins. This helps reduce permitting delays and gives you confidence that your project is built correctly.
05 Why should I choose ENGCO for septic and environmental services?
Our team combines environmental expertise with engineering and construction experience to deliver practical solutions that perform well in the field. Because we understand the entire project, we can coordinate septic planning with your property's overall development. This creates a smoother process and helps avoid costly changes later in your project.
Start Your Project
Ready to talk through
your scope?
Tell us what you're planning. We'll review the scope, the site, and the right next step - and get back to you within one business day.