Category: services

Underground

Here in the Northwest, having good and reliable underground utilities is critical. Seppanen Construction will look to accomplish that for you, whether it be through gas trenching, installing a water line, or any of our many underground services. There are…

Septic to Sewer

We offer septic to sewer conversions for clients in Clark & Cowlitz county. If you’re interested in converting from a septic system to city sewer in your area, contact us. Are you interested in converting from a septic system to…

Septic Systems

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. Do…

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