Creating environments of learning, living, working, and connecting through high quality professional design
Tres West Engineers, Inc. is a Tacoma, Washington-based MEP engineering practice founded in 1976. Serving Washington, Oregon, and Idaho, it provides comprehensive mechanical, electrical, and technology systems design services. The practice has completed thousands of projects across diverse sectors, including K-12 and higher education, multifamily residential developments, transit facilities, military installations, and public parks throughout the Pacific Northwest.
Jenifer MoorePresident
Sean RoyOwner / Mechanical Engineering Lead
David MooreOwner / Electrical Engineering Lead
Comprehensive design of climate control, fluid, and life safety piping systems to optimize building comfort, safety, and energy efficiency.
Power distribution and illumination designs developed to ensure reliable operations, modern control, and sustainable energy utilization.
Integrated communication, security, and low-voltage systems engineered to keep building occupants connected and secure.
Analytical assessments and modeling to evaluate building performance, power quality, and long-term economic viability.
Field observation and administrative support during the build process to verify quality, resolve technical issues, and ensure proper project closeout.
Education · Residential · Multifamily Residential · Hospitality · Transit · Defense · Government · Parks & Open Space · Arts & Culture · Federal · Retail
Mountlake Terrace, WA · Transit · 2009 · Client: Community Transit
MEP design for Community Transit's Mountlake Terrace Park & Ride, which serves as a key transit link between Snohomish County and Downtown Seattle. The facility was awarded a Green Globes certification in 2011 for environmental and energy-efficient design.
Seattle, WA · Multifamily Residential · 2014
Mechanical and electrical design services for a 40-story luxury high-rise residential tower.
Tumwater, WA · Education · 1985
Design services for a replacement elementary school facility, marking the first school design project completed by the practice.
East Olympia, WA · Education · 1989
School construction design project completed in the late 1980s.