Grading

Clear and Grub

Two yellow construction vehicles leveling dirt on a clear day.

No project can be built on improper subgrade. We’ll finish your sites grades for smooth elevation transitions and proper stormwater drainage, preparing them for future infrastructure.

Clear and Grub

Three excavators and heavy machinery on a dry, grassy construction site.

Clearing your site is the first step in a successful project. From desert terrain to thick forests, we will remove and dispose of any vegetation, structures, or spoils on your site.

Utilities

No matter dry or wet SWSW has the expertise to safely complete your next underground utility installation. From storm drain, duct banks, sewer and water we do it all.

Culvert Re-lining

Workers install a large pipeline in a forested area using heavy machinery.

SWSW is the leading culvert relining specialist on the west coast. SWSW has the certifications and equipment to reline any size culvert from 8" up to 160".

HDPE Fusion

Culvert Re-lining

HDPE Fusion

Construction site with machinery and a long pipe under a blue canopy.

SWSW fusion crew is certified to fuse 2"-48" HDPE.

Mulching

Culvert Re-lining

HDPE Fusion

A red forestry mulcher clearing vegetation between trees under a blue sky.

SWSW has two mulchers avialble to mulch trees and brush ranging from less than 1" up to 36" in diameter.