J. F. Prieto Engineering Construction Inc. is a family-owned general engineering contractor based in Los Angeles, CA. The company has served the greater Los Angeles County area for over 50 years, specializing in septic system repair and septic tank installation. Their services include wastewater repairs, restorations, and new installations for sewer and septic applications, as well as concrete and asphalt work such as foundations, retaining walls, and street restoration. They also handle underground utilities including electrical conduit and water connections.

Gardner Septic Service Inc. is a licensed sanitation systems contractor based in Riverside, CA, serving the Inland Empire including Moreno Valley, Woodcrest, Yucaipa, Redlands, and nearby areas. The company offers a wide range of septic services such as system design, installation, pumping, repairs, locating, and inspections. With over 20 years of experience and operating since 2006, Gardner Septic Service specializes in real estate septic certifications and handles projects of all sizes for both residential and commercial clients. They provide 24/7 emergency septic services throughout their service area.