Navo & Sons Inc. was founded in 1968 by George C. Navo. Business was conducted for several years out of George's home on Mc Courtney Rd. in Grass Valley. Initial start up capitol was $500.00, a humble beginning indeed.

Johnny on the Spot was added in 1972 as a d.b.a. of Navo & Sons Inc. through Johnny on the Spot we supplied portable toilets for new construction and special events.

The business development plan called for a "main street" location as soon as possible and so in 1973 the business was re located to where it is today at 10815 Idaho-Maryland Rd.

George's son Randy a participant in the business at this time and concentrated his efforts on sales and service. In 1976 Mark Navo started full time at Navo & Sons Inc. This pairing of the Navo brothers along with George Navo enabled Navo & Sons Inc. to expand service territory for both septic pumping and portable toilets.

In 1982 Jaye Deen Navo joined the Navo & Sons team and worked as an office manager and dispatcher. Shortly after the addition of Jaye Deen Navo, George Navo semi-retired to pursue other projects.

The combination of Randy, Mark, and Jaye Deen through hard work and dedication was able to expand Navo & Sons to other avenues - such as leach field tracing, septic inspections, and TV inspections.

In seeing a need to diversify Navo & Sons Inc. purchased the Grass Valley Roto-Rooter Franchise in 1988. In 1993 Navo & Sons also purchased the Auburn Roto-Rooter Franchise.

In 1995 Randy Navo achieved his Contractors State License in both plumbing and sanitation systems. This allowed both Navo and Sons Inc. and Roto-Rooter to expand into the plumbing industry. Navo and Sons Inc. started installing septic tanks and leach fields and Roto-Rooter could take care of all their customer's plumbing needs.

In 1996 Johnny on the Spot was sold to further focus Navo Corp towards the septic and plumbing repair business.

In 1999 Navo & Sons Inc. by adding an Environmental Health Specialist to their already very capable crew, Navo & Sons Inc. was able to expand into designing septic systems and performing perc & mantles.

In seeing the need to expand their Pumping, Installations, and Plumbing into the Placer County area, Navo & Sons Inc. purchased All-Sierra Septic in 2000. Another office was opened in 2001 in the City of Auburn and the previous owner Mike Nash was hired to manage All-Sierra Septic.

Today, Navo Corp is the largest Septic, Sewer, and Plumbing service companies in Nevada and Placer Counties. It's innovative approach to conducting business has drawn the attention of the industry trade shows where Randy and Jaye Deen were both guest speakers, which has resulted in many articles written about the company over the past thirty years.