Reliable Septic and Excavation Services

We provide expert septic installation and excavation solutions that meet all county and DEQ requirements while ensuring safe workmanship, dependable service, and long lasting results for every project.

Trusted Septic and Excavation Experts Serving the Northwest

AI Septic and Excavation LLC is a family owned company providing reliable septic system installations and comprehensive excavation services throughout Oregon and Washington. We specialize in delivering solutions tailored to each property while ensuring every project meets county and DEQ standards. Our team is fully licensed, bonded, and insured which gives homeowners, contractors, and builders complete confidence in the work we perform.

We handle the full septic process including site evaluations, system design, permitting, installation, and final inspections. Whether installing standard or ATT systems, replacing outdated equipment, or rebuilding after fire or flood, we focus on durability, accuracy, and code compliance. Our approach ensures long term performance and dependable results for every customer we serve.

Beyond septic work, we provide excavation services that prepare sites for new construction with precision and care. From demolition to clearing, grading, and stormwater management, we deliver clean and safe groundwork that sets a strong foundation for successful builds across diverse residential and rural properties.

Professional Septic Services

We deliver complete septic and excavation services built for long lasting performance while ensuring accurate permitting, safe workmanship, and reliable results for homeowners and builders across Oregon and Washington.

New Installations and Replacements

We provide full service septic installations and system replacements with soil testing, excavation, tank placement, and drainage preparation. Our team ensures systems meet county and DEQ requirements while delivering dependable performance. Homeowners and contractors trust our experience and commitment to quality and reliable service.

Service Details

ATT and Standard Systems

Our experts install both ATT and traditional septic systems designed to match each property’s soil conditions and code requirements. We manage evaluations, permitting, excavation, and final system testing to ensure strong performance. Whether upgrading outdated equipment or building on new land, we deliver reliable wastewater solutions across Oregon and Washington.

Service Details

Excavation, Grading, Stormwater Management

We offer excavation and site preparation services including clearing, grading, trenching, and stormwater management. Our team ensures accurate elevations, safe digging practices, and clean site conditions that support reliable septic installation and new construction. Builders and homeowners rely on our groundwork that protects property value and project success.

Service Details

Emergency Rebuilds After Fire or Flood

We respond quickly to properties damaged by fire or flood and rebuild septic systems that are safe and fully compliant. Our team handles evaluations, permitting, excavation, tank installation, and drainage restoration with care and accuracy. We help homeowners recover safely with dependable solutions that restore property function securely and efficiently.

Service Details

Quality Results Delivered Every Time

Explore a selection of septic installations and excavation projects completed for homeowners and builders seeking reliable service, precise workmanship, and long lasting solutions across Oregon and Washington.

Why Choose Us

Clients choose us for dependable septic installation and excavation services supported by skilled workmanship, clear communication, and proven results that consistently meet local requirements throughout Oregon and Washington.

Skilled Professionals

Our trained team delivers accurate septic and excavation services backed by 12 years of dedicated industry experience.

Fully Insured

We provide safe and compliant services with complete licensing and insurance for all residential excavation and septic projects completed.

Trusted Quality

We ensure every project meets local codes and client expectations using reliable methods proven across 280 successful installations.

On Time

We complete each septic and excavation project efficiently and responsibly to keep every customer’s schedule running smoothly.

Years of Experience

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Happy Clients

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What Our Clients Say

Our customers value our professionalism, reliability, and commitment to quality. Here are genuine experiences from homeowners and builders who trusted us with septic installation and excavation needs.

AI Septic and Excavation handled our entire septic installation with professionalism and clear communication. They explained every step and completed the work exactly as promised. The team was respectful, efficient, and knowledgeable. Our new system passed inspection smoothly and we could not be happier with the results they delivered.

Mark Stevens

We hired AI Septic and Excavation for a full system replacement and site preparation. Their crew worked fast, stayed organized, and followed all regulations. The quality of work was excellent and the project stayed on schedule. Their expertise made a difficult process much easier for our family.

Sarah Martinez

Our construction company trusts AI Septic and Excavation for reliable septic installs and consistent excavation work. They deliver accurate grading, strong communication, and dependable results on every job. Their experience shows through careful planning and safe execution. We consider them a top partner for our residential development projects.

Daniel Brooks