General Info

Oak Tree Inspection Services (Otis) specializes in providing septic inspections & underground storage tank location services. Otis understands that the data from the collection of our inspections are the foundation of decisions made in our industry. Otis useâ??s efficient and responsible test methods. Clients include realtors, home buyers, engineering firms, insurance agencies, relocation companies and independent business owners. We serve Sussex County, Morris County, Warren County, Northern Passaic County and surrounding areas.