970-667-5405


Family Owned & Operated Since 1974   

Johnston Sanitation Service was started by Joe Johnston in 1974 when he realized the need for a reliable company to provide a necessary service for everyone living outside city limits owning a septic system or a vault. Joe worked closely with his father, Ivan Johnston, who owned Johnston Trenching.  Together they installed leach fields and serviced septic tanks.

In 1991, Joe moved to Enid, Oklahoma and one of his older brothers, Arlo Johnston, took on the responsibility of servicing those in need. Arlo grew the business even more over the next 20 years, servicing Loveland, Estes Park, and the surrounding areas.  

In August of 2010 Arlo’s oldest daughter, Marlo took over the business, allowing him to retire to farming and wood carving. Finally in October of 2015, Marlo turned the company over to her long-time employee Evan Welting. He and his wife now run the business out of their family farm, and continue the Johnston tradition by providing exemplary service to the Front Range and Northern Colorado.



We offer competitive pricing and prompt response times.

For an estimate, or to schedule services, please contact us at 970-667-5405.