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Welcome to Highline Technical Services

HTSi is a leading provider of building commissioning and construction quality assurance in the Pacific Northwest.

Our commissioning process significantly improves building system reliability, increases occupant comfort and often saves energy at the same time.

Our quality assurance process effectively communicates quality levels during construction, enables owners and construction mangers to track deliverables at a glance and reduces re-work and construction management efforts.

Please let us know how we can contribute to the success of your next project.



At Highline we take pride in providing our customers with buildings that operate properly.
What have our customers had to say about us?
  • "You bridge the gap between engineering and construction."
    - University of Washington, Capital Projects, Project Manager
  • "You did all of the worrying so I didn’t have to."
    - Makah Indian Nation, Makah Museum Director
  • "You found way more than expected [$97,000 annual energy savings], it is just a warehouse."
    - Sr. Facility Manager, DHL Global Business Services
  • "The professionalism and attention to detail demonstrated by Barry during this project was outstanding."
    - Everett School District, Facilities Dept., Construction Manager

Why is Highline the right choice for your commissioning project?
  • Improved Design Clarity
  • Assurance That Equipment Will Operate Properly
  • Quick and Efficient Issue Resolution
  • Reduced Operating and Maintenance Costs
  • Fewer Warranty Calls
  • Experienced Professional Service

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