Septic Systems must be done right the first time. We will properly install your septic system to ensure years of trouble free service and promote ease of maintenance. We are certified and competent to take on the most challenging sites.
Here in the Northwest, having good and reliable underground utilities is critical. We provide underground utility services to homeowners and contractors alike, throughout Clark and Cowlitz counties.
Seppanen Construction has been providing quality septic, underground & excavation services to Clark & Cowlitz County residents and contractors for over 20 years.
Seppanen Construction, LLC is currently accepting employment applications. We provide year round reliable work with company paid employee health insurance. Download our Application to get started! Then send it back to us at email@example.com