Engineers who are great communicators.
FSi Engineers is an MEP engineering practice founded in 1985, originally established to serve Boeing. It has grown to serve public, industrial, and community facilities from its offices in Washington State and Maryland. The team specializes in mechanical, electrical, fire protection, and plumbing engineering, alongside specialty services such as energy modeling, computational fluid dynamics airflow analysis, commissioning, and deep sustainability consulting. FSi Engineers is known for its focus on clear business communication, sustainable designs, and long-term client relationships.
PE · LEED AP · LEED AP BD+C · LEED Green Associate · Certified Commissioning Professional (CCP) · Building Energy Auditing Professional (BEAP) · Building Energy Modeling Professional (BEMP) · Certified Energy Manager (CEM) · PMP
Kevin ChadwickManaging Principal
Ben RoushPrincipal
Ola JarvegrenPrincipal
Rick HimmelPrincipal
Jennette LeeChief Financial Officer
Design of HVAC, industrial ventilation, heat pumps, boilers, and electrification systems for complex public, industrial, and community buildings.
Power distribution, lighting, and specialty technology systems design for applications ranging from industrial operations to public spaces.
Engineering for domestic water, sanitary waste, stormwater, and process piping systems, ensuring compliance with strict environmental and permitting codes.
Code-compliant detection and suppression systems that protect lives, facilities, and valuable equipment from fire hazards.
Comprehensive building energy analysis, baseline modeling, and efficiency retrofits to lower utility costs and verify code compliance.
Sustainability-focused consulting and MEP engineering for high-performance buildings, supporting certifications such as Phius and the Living Building Challenge.
Computational fluid dynamics modeling to evaluate natural ventilation, optimize window placement, and control air patterns in sensitive environments.
Work in this area is organized into supported delivery tasks.
Support includes Holistic quality assurance process verifying that building systems operate as intended.
Support includes coordinate together seamlessly.
Support includes run at peak performance.
On-site investigations and equipment life-cycle analyses that provide stakeholders with detailed reports for capital budgeting and master planning.
Technical assessments, cost estimation, and life-cycle costing to guide early-stage decision-making for facility renovations and additions.
Education · Industrial · Healthcare · Manufacturing · Transit · Transportation · Food & Beverage · Laboratories · Life Sciences · Government · Wastewater · Data Centers · Aviation · Mission Critical Facilities
Mukilteo, WA · Transit · Client: Washington State Ferries
Mechanical engineering including energy modeling and computational fluid dynamics (CFD) airflow analysis for natural ventilation on an eco-friendly ferry terminal serving Washington State Ferries and Coast Salish tribal stakeholders.
Seattle, WA · Healthcare · Client: Seattle Children's Hospital
Mechanical engineering for a new 35,000-square-foot pediatric healthcare clinic owned by Seattle Children's Hospital, located on the first two floors of Othello Square.
Seattle, WA · Affordable Housing · 2016 · Client: Facing Homelessness
Pro bono mechanical engineering to help design 125-square-foot backyard homes certified as Living Buildings by the International Living Future Institute to address homelessness.
Richland, WA · Education · Client: Washington State University
MEP engineering and winery systems design for the Ste. Michelle Wine Estates WSU Wine Science Center, a state-of-the-art research and teaching facility.