Expert & Affordable Septic System Company Providing Septic Pumping, Installation, Repair, Inspection & Maintenance Throughout Snohomish & King Counties

Formerly Snohomish Septic, Woodinville Septic, Kingsgate Septic and Evergreen Onsite, we’ve combined to streamline our operations, and we’re excited to reintroduce ourselves as The Septic Group! Continuing to serve Snohomish and King counties, The Septic Group retains the same personnel with the same expertise, superior customer service and competitive pricing. The only difference you’ll notice is our new name and logo. As always, we provide great responsiveness and an enhanced range of services. Our renamed septic system company looks forward to serving you!

The Septic Group is a septic system company septic pumping, installation, repair, inspection and maintenance in Sno-King Counties.The experienced pros at The Septic Group have been expertly serving the septic needs of Snohomish and King County home and business for over 50 years. Family owned and operated, our septic system company has been trusted by thousands for routine septic system pumping, installation, repair, inspection and maintenance.

Septic Tank Pumping

Septic tank pumping, our most requested service, is necessary to clear the tank of effluent and solids that build up over the years. While additional maintenance is sometimes needed, having your septic tank pumped at regular intervals eliminates many septic problems before they begin. Pumping ensures system components aren’t overloaded and ‘good’ bacteria continues to reside and thrive in your tank. We never use harmful chemicals that disrupt bacteria balance.

Septic System Repair

Expert & Affordable Septic System Company Providing Septic Pumping, Installation, Repair, Inspection & Maintenance Throughout Snohomish & King CountiesEven with diligent care, septic systems can still experience problems. Poor maintenance, improper installation, changes in soil condition, or simply old age can take your system down. When septic system repair is needed, we’ll use our extensive knowledge and expertise to take care of the problem.

Septic System Inspection

Whether required as part of a real estate transaction, periodically required by your municipality, or because there’s a suspected problem, our septic system inspection experts are ready to serve you. Our technicians can quickly identify whether your system just needs pumping, or if repair is needed. Inspection is always part of our septic system maintenance process, and many counties mandate it be done on a prescribed periodic basis.

Septic System Installation

For a new septic system installation, or for replacement of an outdated or malfunctioning system, we’re the septic system company to call. We expertly install modern septic systems based on the specific needs of your property, which are determined by your septic designer. And we strive to make our installation minimally disruptive to your daily routine.
’Green’ Septic System Company Serving Snohomish & N. King Counties.

Your All-in-One Septic System Company

Make sure you’re doing your part to take care of our beautiful Northwest environment by calling the most experienced septic system company in Snohomish and King Counties. The pros at The Septic Group will come through for you!

The Most Trusted Septic System Company in Snohomish & King Counties

Serving Snohomish, Arlington, Bellevue, Bothell, Carnation, Duvall, Edmonds, Everett, Fall City, Granite Falls, Issaquah, Kenmore, Kirkland, Lake Forest Park, Lake Stevens, Lynnwood, Marysville, Mill Creek, Monroe, Mountlake Terrace, Mukilteo, Newcastle, Redmond, Sammamish, Seattle, Stanwood & Woodinville