Conventional Septic System Installation

Conventional Septic System Installation

Professional septic tank and drain field installation for residential and commercial properties


5 Highlights on Conventional Septic System Installation

  • Full site assessment and perc testing — Our licensed installers excavate test pits, evaluate soil profiles, and conduct percolation tests to confirm your property can support a gravity fed conventional septic system before any work begins.
  • Engineered system design — We size every septic tank, distribution box, and leach field based on bedroom count, daily flow calculations, and local health department requirements to deliver a compliant, long lasting installation.
  • Quality materials and components — Each conventional septic system installation uses precast reinforced concrete tanks, Schedule 40 PVC pipe, washed gravel aggregate, and geotextile filter fabric from trusted manufacturers.
  • Permitted and code compliant — A-1 Bill Gibson Septic Service pulls all required permits, coordinates health department inspections, and provides certified as built drawings for every septic system we install.
  • Backed by experience — Our crews have installed hundreds of conventional septic systems across residential lots, commercial parcels, and rural properties where municipal sewer lines don’t reach.

Why Choose Our Conventional Septic System Installation

Conventional septic system installation is the core of what A-1 Bill Gibson Septic Service does best. We’re a licensed, insured contractor with decades of field experience excavating, piping, and commissioning gravity fed septic systems that work reliably for decades.

Our installers don’t cut corners. We trench to exact grade specifications, compact backfill in measured lifts, and connect every inlet baffle, outlet baffle, and tee fitting to manufacturer standards. Each septic tank gets pressure tested for watertight integrity before we cover it. Every lateral line in the drain field gets laser leveled so effluent distributes evenly across the absorption area.

We handle the entire process from permit application through final health department inspection. That means one contractor, one point of contact, and one team accountable for the finished system. No subcontracted excavation crews. No finger pointing between trades.

Our pricing is transparent. You’ll receive a detailed written estimate that breaks down tank costs, pipe and aggregate quantities, excavation hours, and permit fees. No surprise charges after we break ground.

A-1 Bill Gibson Septic Service stands behind every conventional septic system installation with a workmanship guarantee. If something we installed fails within the warranty period, we’ll repair or replace it at no additional cost. That’s the kind of commitment a top rated septic contractor should offer.


Signs You Need Conventional Septic System Installation

Conventional septic system installation is the right solution when specific site conditions and circumstances line up. Here are five situations where you need a new system installed.

You’re building on undeveloped land without sewer access: New construction on rural or suburban lots that sit beyond municipal sewer mains requires an onsite wastewater treatment system. A conventional septic tank and drain field is the most proven, cost effective option when your soil percolation rate and water table depth meet local code requirements.

Your existing cesspool or cesspit is failing: Older properties sometimes rely on cesspools that predate modern septic regulations. When a cesspool collapses, saturates the surrounding soil, or contaminates nearby groundwater with coliform and pathogens, the health department will require you to decommission it and install a permitted conventional septic system.

Your current septic system is beyond repair: A waterlogged drain field with a thick biomat layer, a cracked concrete tank that won’t hold watertight integrity, or an undersized system that overflows during normal daily flow all point toward full replacement rather than patchwork fixes.

You’re adding bedrooms or expanding square footage: Design flow for a septic system ties directly to bedroom count. Adding a bedroom, finishing a basement with a bathroom, or converting a garage into living space can overload your existing system. A new, properly sized conventional septic system installation brings your property into compliance.

Health department or code enforcement has issued a notice of violation: A non compliant or failed system that discharges untreated effluent to the surface, backs up into the house drain, or pollutes a nearby riparian zone will trigger enforcement action. Installing a new conventional septic system is often the only path to resolve the violation and protect public health.


Our Conventional Septic System Installation Process

Conventional septic system installation is a structured, multi step process that A-1 Bill Gibson Septic Service follows on every project.

Step 1: Site evaluation and soil testing. We survey the property, dig perc holes and test pits, and assess the soil profile for percolation rate, depth to bedrock, and seasonal water table elevation. These results determine whether a conventional system will work on your lot.

Step 2: System design and permitting. Our team designs the septic tank size, drain field layout, and distribution box placement based on soil absorption rates and projected daily flow. We submit engineered plans to the local health department and secure the installation permit.

Step 3: Excavation and tank placement. Our excavator and backhoe operators dig the tank hole, trench the building sewer line from the house, and excavate lateral trenches for the leach field. We set the precast concrete septic tank on a compacted, level base and verify grade on all pipe runs.

Step 4: Pipe installation and connection. Crews install Schedule 40 PVC drainpipe from the house to the tank inlet, connect the outlet to the distribution box, and run perforated leach lines through gravel filled trenches wrapped in geotextile fabric. Every coupling, elbow, and wye fitting gets solvent welded and inspected.

Step 5: Backfill, grading, and inspection. We backfill trenches in layers, compact the soil to prevent settling, and grade the surface for proper drainage away from the system. The health department inspector verifies all components before we install risers, access lids, and finish grading. We provide as built drawings and commission the system for use.


Brands We Use

Conventional septic system installation demands reliable, field proven components. A-1 Bill Gibson Septic Service installs products from these trusted manufacturers:

  1. Infiltrator Water Technologies 
  2. Orenco Systems
  3. Polylok 
  4. TUF-TITE 
  5. Sim/Tech 
  6. Zoeller
  7. Charlotte Pipe 
  8. ADS (Advanced Drainage Systems)
  9. Hancor 
  10. Mirafi (TenCate)

Every component we install meets or exceeds local health department specifications and manufacturer load ratings.


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FAQs About Conventional Septic System Installation

What is a conventional septic system? 

A conventional septic system is a two part onsite wastewater treatment setup. A buried septic tank receives raw influent from the house drain, separates solids from liquids, and allows anaerobic bacteria to decompose organic matter. Clarified effluent then flows by gravity through a distribution box into a network of perforated pipes laid in gravel filled trenches called a drain field or leach field, where soil microorganisms filter and treat the wastewater before it percolates into the subsurface.

When should I schedule a conventional septic system installation? 

Schedule your installation when you’re building a new home on a lot without municipal sewer access, replacing a failed or non compliant system, or upgrading from a cesspool. Spring and summer typically offer the best ground conditions for excavation, but A-1 Bill Gibson Septic Service installs systems year round when weather and soil conditions allow.

Why does a perc test matter before installation? 

The percolation test measures how fast water drains through your soil. Sandy and loamy soils absorb effluent well. Clayey or silty soils drain slowly and may not support a conventional drain field. Your perc test results determine whether a conventional septic system installation is feasible and dictate the required size of the absorption field.

How long does a conventional septic system installation take? 

Most residential installations take three to five working days from excavation through final inspection. Larger commercial systems or sites with difficult access, rocky soil, or high water tables may require additional time.

Can I install a conventional septic system on any property? 

Not every lot qualifies. The property must have adequate setback distances from wells, property lines, waterways, and structures. Soil must pass a percolation test, and the water table must sit far enough below the trench bottom. A-1 Bill Gibson Septic Service conducts a full site assessment to determine if your property meets all requirements before you commit to the project.

Does a new septic system need a permit? 

Yes. Every conventional septic system installation requires a permit from the local health department or code enforcement office. A-1 Bill Gibson Septic Service handles the entire permit application, submits engineered site plans, and coordinates all required inspections so you stay compliant from start to finish.