About McNel Septic Service

About McNel Septic Service

We are a family-owned and operated septic tank pumping company based out of Maple Valley, WA.

Our mission is to give our residential and commercial customers top-quality service while providing economical solutions to their repair or replacement needs. We accomplish this by only employing expert technicians that are Washington On-Site Sewage Association (WOSSA) certified and posses years of hands-on experience in the industry.

Our team is happy to answer your questions about your septic system. McNel Septic Service is fully insured, licensed and bonded for your peace of mind.

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Residential and Commercial Services

About McNel Septic ServiceMcNel Septic Service


Dedicated to Service

About McNel Septic Service

We have earned a great reputation by being honest, reliable, affordable, and on time; our technicians will always greet you with a smile! If you are in need of septic tank service in Maple Valley, Black Diamond, Palmer, Ravensdale, or King County, WA, call McNel Septic Service first. Contact us today!