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B&W ON-SITE LLC - Spokane Septic Design in Spokane, WA

5 from 5 Google reviews7:00 AM to 9:00 PM, seven days a week
Spokane, WA(509) 680-0605bwonsite.com/ opens in a new tab
Stock photo of septic tank pumping
Stock photo

Septic Service Categories

These are how Google lists the business, not proof of a service offered.

Septic system serviceService establishment

Hours

7:00 AM to 9:00 PM, seven days a week

Google Reviews

5 5 Google reviews
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  1. Jeannette D.

    February 2026

    We ABSOLUTELY love this company. We have used Bryan for three different builds now because he goes out of his way to quickly get system designs prepared and submitted. His designs have been 100% approved by the health department at first submittal, saving us much time. He is caring, professional, friendly, and knowledgeable. We highly recommend working with B&W On-Site. Your project will get done fast and accurately. Thank you B&W for being so awesome in a world where mediocre is the norm.

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  2. Nathan K.

    May 2024

    B&W designed an extension on my drain field for me. The drawings were straightforward and I was able to complete the installation myself. No issues, reasonable pricing and pleasant to deal with, I'd do business with them again.

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  3. B C.

    September 2023

    Excellent! The system design was simple and effective. No pumps or electrical panels to fail. There is nothing in the drain field the animals can step on and break, or the underground critters can pack full of dirt. Streamlined process, responsive to my questions and helped guide me through the process. B&W saved us thousands of dollars. Would recommend to family without hesitation! Look no further for a trusted design. Thank you B&W On-Site!

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  4. Cleat G.

    November 2022

    BW Onsite designed a new septic system for my barn. He was very responsive and walked me through the options. He really helped to streamline the process and did a great job on the design.

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  5. David H.

    November 2021

    Had B&W design my septic system. Great design, very through, great service.

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From the Google listing, checked 30 Aug 2026.

Homeowners hire B&W On-Site to design septic systems for houses, shops, barns, and drain field expansions. Bryan maps out the layouts and handles submittals, which Jeannette noted were prepared quickly for health department approval on three builds. Nathan reported that the "drawings were straightforward" when completing the installation for his drain field expansion.

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B&W ON-SITE LLC - Spokane Septic DesignSpokane, WA

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How is B&W ON-SITE LLC - Spokane Septic Design rated?

5 stars from 5 Google reviews.