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Shadow Mountain Septic and Plumbing LLC

We are your residential plumbing experts! We also offer septic installation, inspection, repair, and well repair. Contact us now, we have over 13 years of experience. 

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About Us

Serving the Tri-Cities! Kennewick, Richland, Pasco, Prosser, Grandview, Sunnyside, and Yakima

We are a family owned and operated septic and plumbing company located in Benton City, WA. We are licensed, bonded and insured. We service Benton City, Prosser, West Richland, Richland, Kennewick and Pasco. We specialize in septic system installation, service, and repair. As well as residential plumbing service, drain cleaning and repair and well services. We offer 24/7 service.


Residential Plumbing Services

We offer residential plumbing services, hot water heaters, remodels and all residential plumbing needs.

Commercial Plumbing

We can handle a variety of commercial plumbing services, call us today to see how we can help you accomplish your goals.

Septic Tank Services

We service, install, inspect and repair septic tanks.

Well Services

Get in touch with us for Well Room repairs and any other well services that we can assist you with to get you up and running.


Read some of our customer reviews below.

"Chris was prompt, efficient and reasonably priced. And a great guy!! He repaired our leaky shower and a leak between the house and pump."
Linda Root
"Professional quality & great customer service! Highly recommended!"
Angela Larsen