PLEASE BE ADVISED THAT DUE TO COVID-19, WE ARE NOT CURRENTLY OPERATING UNTIL EMERGENCY ORDERS ARE LIFTED. 521 FLOW is in business to help you with your sewage problems, specializing in septic system consulting. Our goal is to provide a different repair & inspection experience. The average septic and sewage repair company offers "free" quotes and only offer expensive "repair" options. We have helped hundreds of families and businesses by providing unbiased advice about how to maintain and repair a septic system or sewage pipe so it will function as long as possible. Continue reading...


We have over 10 years of experience managing commercial and residential septic systems. This experience has given us a significant amount of knowledge on how to inspect, maintain, and repair septic systems and sewage pipes. We are insured and licensed under the Ontario Building Code. 


"We just wanted to thank you for all your help with the inspection. Thank you for the expert advice and providing the Ontario Building Code explanation. Having you inspect the system has saved us thousands of dollars and lots of headaches in the future. Without hesitation, we would gladly recommend your services in the future." -- Matthew, Mount Brydges

"Our system was sluggish every time we did laundry. 521 FLOW found a crushed pipe leading out of the septic tank and they were able to repair it for much less then expected." -- Pauline, Lambton Shores

" We want to thank you for solving our septic problems which we had for years. For many years we tried many different additives to our tank, none of them worked. Dave had the tank cleaned out and sucked out the weeping bed, checked out the weeping bed with his nifty submersible camera. He than added some Bio-Desolve. It’s been 4 weeks now and we can see the results. One person had told us we had to replace the weeping tile which would have cost us thousands of dollars.($5,000 to $10,000) Our septic problem is now solved and cost us less than $800.
Thanks again Dave for saving us thousands of dollars." - - Jake H, Strathroy