Manufactured home installation service overview

Manufactured Home Installer in Cowlitz County

Columbia Groundwork Inc. provides Washington State licensed manufactured home installation for homeowners, dealers, contractors, and property owners in Cowlitz County. Based in Castle Rock, we manage the full process of placing a manufactured home, from site preparation and utility coordination to setup, skirting, and final site support.

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Manufactured Home Site Preparation & Setup

Placing a manufactured home takes more than delivery. The site needs to be properly prepared, accessible, graded, and ready before the home arrives. We bring excavation, groundwork, and installation experience together so the project moves smoothly start to finish.

  • Site evaluation and planning
  • Excavation and grading
  • Building pad preparation
  • Driveway and access preparation
  • Drainage and stormwater support
  • Utility trenching
  • Water line coordination
  • Sewer or septic connection support
  • Skirting installation
  • Final grading and site cleanup

Local Excavation & Manufactured Home Support

As a full-service excavation and groundwork company, we know a successful manufactured home installation starts with the land. Proper grade, access, drainage, utility routes, and pad preparation all matter before the home is delivered.


Why Choose Columbia Groundwork?

  • Washington State licensed manufactured home installer
  • Excavation and groundwork expertise from site prep through setup
  • Locally owned and operated in Castle Rock, WA
  • Transparent scheduling and quotes

Service Area

Castle Rock, Longview, Kelso, Woodland, and Kalama, all of Cowlitz County.



Request a Quote

Looking for a Washington State-licensed manufactured home installer? Call (360) 957-8847.

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