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 several underground utilities we are qualified for and ready to do:

- New construction or remodel sewer connections
- Water lines
- Power
- Phone
- Gas trenching
- Drainage piping
- Infiltration trenches (required for storm water disposal dig and backfill)

Septic Systems
Septic to Sewer Conversion