King County · General Contractor

CORNERSTONE CONST/SEATTLE INC

Issaquah, Washington · Serves Greater Puget Sound area

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From their website

Excavation and underground utility contractor serving the Greater Puget Sound area, including work for general contractors, builders, and the City of Seattle. Services include demolition, foundation and site excavation, and underground utility installation.

  • Demolition
  • Excavation
  • Underground Utility Installation
  • Side Sewer CIPP Lining
  • Storm Lines
  • Water Lines
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Trade
General Contractor
City
Issaquah
Works on
Homes
From their website
In business since
1986
From their website
Phone
Shown once the owner claims
Website
www.ccseattle.com

Name, city and trade from Washington public records. The rest comes from the business's own website (checked 2026-10-21) and hasn't been confirmed by the owner. Check this license on the state's license lookup (L&I) before you sign. Wrong business or details? Tell us and we'll fix or remove it.