Renovation & Retrofit

Hermanson Company has long held the reputation as a mechanical contractor who can get the tough job done well.  As a result, we have specialized in difficult, mission-critical remodel and retrofit projects.  Our clients are confident of Hermanson’s ability to complete massive improvements to building mechanical systems within strict schedule and budget perimeters.
  Microsoft Buildings 16, 17, & 18
Microsoft Buildings 16, 17, & 18
Redmond, Washington
Hermanson completed $17,000,000 of mechanical construction services to renovate three occupied interconnected office buildings totaling over 470,000-s.f. without displacing any of the 3,500 workers in the buildings.

  1200 Third Avenue
1200 Third Avenue
Seattle, Washington
Hermanson provided mechanical design and construction for the shell & core and tenant improvement work on the top four floors – 48,000 s.f. of this older office building.

  Nakamura Federal Building
Nakamura Federal Building
Seattle, Washington
Hermanson Company is the Design-Build mechanical contractor for this on-going renovation project.



  Roosevelt High School
Roosevelt High School
Seattle, Washington
Part of the Seattle School District’s ongoing upgrade of historic schools, the Roosevelt High School renovation resulted in an architectural gem and an educational success.

  Boeing
Boeing
Puget Sound Region
For over 25 years, Hermanson has worked with Boeing to update their facilities.


  Microsoft – Move/Add/Change – Tenant Improvements
Microsoft – Move/Add/Change – Tenant Improvements
Puget Sound Region
Hermanson has provided mechanical Design-Build construction for hundreds of projects throughout Microsoft’s Puget Sound area offices since 1994.

  Gray Triangle

"This was a tough project.  Compared with other contractors, Hermanson Company was head and shoulders above the rest!"

Dick Dunham, University of Washington