Septic System Service Experts

Located in Lake Stevens, Serving Greater Seattle

Learn about our all-in-1 service team of septic system services in Greater Seattle from Everett to Kent. Trusted family-owned company since 1966.

Family-Owned for 60+ Years

With 6 decades of expertise, our family-owned company is known for providing reliable, high-quality services delivered by a team of skilled septic system service experts. From Everett to Kent, The Septic Group is your trusted partner for all septic system needs including installation, maintenance, repair, and inspection. We know what customers need, both in solutions and customer service, which has helped make us the preferred septic company in Greater Seattle!

A Legacy of Excellence

Founded in 1966, our dedication, innovation, and customer satisfaction has contributed to our company growth. Once separate companies serving separate areas, we’ve combined into The Septic Group  to continue serving our community with expert service and quality care. Our journey continues with an ongoing commitment to integrity, quality, and putting customers first. 

1966

Kingsgate was established to serve local communities.

Utility worker installing manhole sewage reconstruction a pit for a septic tank

1994

Evergreen Onsite expanded services to meet growing demands.

2008

Kingsgate and Evergreen Onsite merged to create a unified team.

tank

2019

The Septic Group was formed to consolidate our expertise.

septic tank

Why Choose The Septic Group?

Folks across Greater Seattle choose us for our expertise, customer care, family values and quality service. We’d love you to join us!

Our Mission

Family-Owned Values

Our commitment to fair pricing & customer care that makes you feel like family!

Licensed & Insured Experts

Reliable, innovative septic contractor.

Highly Trained Technicians

Licensed & continually trained professionals ensure top-notch service.

Local Reputation

We’ve served our community for 60 years as a trusted septic services provider.

Comprehensive Septic System Services

We’re proud to serve as your local septic expert, offering solutions covering the complete spectrum of septic services. No matter the service, our goal is to exceed your expectations.

Maintenance & Inspection

Licensed experts perform comprehensive system inspections, ensuring everything from mainlines to drainfields is in optimal condition. We file reports with your county and provide honest assessments to avoid unnecessary repair.

Troubleshooting & Repair

From diagnosing tank issues to replacing failed pumps, our technicians are equipped to resolve any septic problem. Our expertise guarantees quick and effective solutions for even the most complex issues.

Professional Installation

Whether replacing an outdated system or installing a new one, our team provides personalized service with clear communication. You can count on us for a smooth and stress-free installation process.

Reliable Pumping

Our skilled team removes waste efficiently, conducts a thorough inspection, and provides clear advice for any necessary follow-up. Detailed pumping reports ensure transparency and peace of mind.

Call Your Local Septic System Service Experts Today!

The Septic Group combines decades of experience with a customer-first approach to provide unmatched septic services. Call us now to schedule your service or speak with one of our experienced team members.

Greater Seattle’s Septic System Service Experts For 60 Years!

Serving Everett, Bellevue, Woodinville & Greater Seattle

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