Keystone Construction Co.
19608 244th Ave. S.E.
Maple Valley, WA 98038
Contact: John Roberge
Phone: (425) 433-0565
Website: KeystoneConstruction-WA.thebluebook.com		 Established: 1997
License: KEYSTCC033DE
Sector: Public and Private
Project Size: $15,000 To $5,000,000
Labor Affiliation: Union, Nonunion and Prevailing Wage
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    Blue Book Classifications    
Concrete Contrs.--Reinforced Concrete
Concrete--Post-Tensioning
Concrete Contrs.--Sidewalks/Floors/Flat
Concrete Contrs.--Tilt-Up Construction
Foundation Contractors
Retaining Wall Systems
Concrete Repair & Restoration Contrs.

    Products / Brands / Services    

Architectural Concrete
New Construction
Parking Structures
Post-Tension Slabs
Retaining Walls
Residential Retrofit

    Memberships / Assocs. / Gov. Certs.    

ABC (Associated Builders & Contractors)
The Blue Book Network


Geographic Areas Serviced
  • Western Washington
Recent Projects Completed
  • Harrington Square - New Construction - PT / Renton, Washington
    Dollar Value: $4,200,000 Completion: 03/09
  • Bellevue High School - Structural/Architectural / Bellevue, Washington
    Dollar Value: $2,800,000 Completion: Ongoing
Contact Us
John Roberge
Phone: (425) 433-0565
Fax: (425) 433-0564


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