Septic and sewer issues are nothing to mess around with Septic problems can cause a variety of headaches for home and business owners. From clogged drains, to backflowing effluent, to unstable septic tanks and damaged drain fieldsthese issues are costly and frustrating to fix. Thornton Brothers Sewer Service strives to help you avoid these problems and make quick work of any septic and sewer issues you may be facing. As a full-service sewer company in Bay City, MI, were equipped with the state-of-the-art tools, decades of expertise and well-trained techs to relieve you of your septic troubles.