Put Your Septic System in Capable Hands Depend on our septic system specialists in West Union and Oconee County, SC Whether you need a new septic system or you're looking to get your existing system repaired, Iseli Construction can help. Since 1992, we've been the first choice for septic system services in West Union and throughout Oconee County, SC. We can install gravel and infiltrator systems and diagnose and repair septic system failures. Once we're finished, we can take care of any landscaping, plumbing or irrigation work that needs to be done to put your property back together. Call now to make an appointment with our septic system specialists.