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  • PSF would like to extend heartfelt congratulations to Juno Therapeutics on their move into their new headquarters at Alexandria Real Estate Equities’ new building, 400 Dexter in Seattle, WA. The ribbon cutting ceremony took place earlier this week. Juno is occupying nine floors of the copper-clad 12-story building and includes office and research lab space.

    PSF was the design-build mechanical contractor for the Juno TI (as well as the shell and core) and it has been a tremendously successful project by all measures. Congratulations to our project partners as well, it has been a pleasure to work with this exceptional group: Westlake Consulting, Skanska USA, Flad Architects, Precision Electric, and the rest of the project team.

    Click here for more about the 400 Dexter project in our News Feed.

    Image courtesy of CollinsWoerman

  • This stunning building—designed to be in the top one percent of office buildings nationally in energy efficiency—will house the Washington State Patrol offices, a portion of the Office of Financial Management, with additional space for other legislative agencies. PSF was the mechanical subcontractor on the project and provided design assistance to WSP, Engineer of Record, to assist in finding efficiencies in fabrication and installation. Other team members include ZGF Architects and Sellen Construction. PSF will have staff on-site for one year to oversee the measurement and verification of systems performance.

    The building utilizes geothermal loops, a heat recovery chiller, and high-efficiency boilers for hydronic heating and cooling with DOAS-style 4-pipe terminal units feeding 100% outside air to each zone. All skids for the close-fitting mechanical room were pre-fabricated in PSF’s shops and arrived at the construction site on a just-in-time delivery schedule. This resulted in the need for very little laydown space at the site, and fabrication and assembly of the equipment was done in a highly controlled and safe environment.

    Photo courtesy of © Doug Walker

  • As the tenant prepares to move into their beautiful new South Lake Union facility, PSF is proud to report zero injuries and zero time lost during 16 months of production, which includes approximately 85,000 shop and field personnel hours. PSF Mechanical, Inc. was the design-build mechanical contractor for the shell and core, as well as the tenant improvement. 

    Photo courtesy of

  • PSF is wrapping up its work on this Redmond campus, and after nine months of production and more than 25,000 shop and field hours, we are pleased to report another project with zero injuries and zero time lost. PSF Mechanical, Inc. was the design-build mechanical contractor for this project, a four-floor, 150,000 square foot office building tenant improvement which included office and work spaces, conference rooms, a server lab, fitness room, kitchenettes, and various auxiliary rooms and spaces.

  • Saturday, April 29th is Opening day for Tukwila’s newest library. A full-day celebration is planned for the community to explore the beautiful facility. As the mechanical subcontractor, PSF Mechanical installed the HVAC and plumbing systems, a geothermal ground loop system, and radiant floor piping. PSF also conducted startup, test and balance, and commissioning activities for the project.

    The library is just a portion of the larger Tukwila Village project, an urban center development which will also include a neighborhood police resource center, retail shops, restaurants, public meeting space, and an outdoor plaza. The Tukwila Village may also include office, and residential space. Project team members include The King County Library System Foundation, Perkins+Will, and Edifice Construction Company.

    Photo courtesy of Perkins+Will