Business Details
50+ Years
experience
Trusted Engineering Solutions in Portland
Founded in 1969, Interface Engineering has grown into a multidiscipline firm recognized for visionary sustainable design and breakthrough engineering solutions. Our team of over 220 professionals delivers technical expertise across mechanical, electrical, and plumbing engineering, commissioning services, and energy consulting. We prioritize innovative engineering for high-performance buildings, integrating advanced building science tools and sustainable practices. As a 100% employee-owned company, we maintain a collaborative philosophy, serving clients from concept through construction and operations. Our work spans diverse markets, including healthcare, education, and government facilities, with a focus on transforming concepts into commissioned, high-performance buildings.With ten offices nationwide, we combine local market knowledge with global expertise to address each project's unique challenges. Our commitment to resource efficiency and environmental stewardship has earned recognition, including design excellence awards and client trust. We specialize in energy life-cycle cost analysis, cogeneration systems, and advanced control technologies to optimize building performance. Our leadership team, comprising seasoned principals and engineers, brings decades of experience to every project. This enduring dedication to technical excellence and sustainable innovation positions us as a trusted partner for complex engineering challenges.
Services
Mechanical Engineering
Electrical Engineering
Plumbing Design
Commissioning Services
Energy Consulting
Fire/Life Safety
Lighting Design
Building Technologies
Details
- Year established: 1969
Highlights and features
- We have over 55 years of experience in sustainable engineering solutions.
- Our 100% employee-owned structure ensures dedicated project ownership.
- We offer integrated design services across 10 national office locations.
- Our team includes 220+ engineering professionals with specialized expertise.
- We maintain a proven track record with award-winning projects nationwide.
Services
Mechanical Engineering
Our mechanical engineering team designs high-performance HVAC systems using energy modeling and advanced control technologies. We specialize in underfloor ventilation, heat recovery, and radiant systems for commercial buildings. Our engineers optimize thermal comfort while minimizing environmental impact through lifecycle cost analysis and sustainable material selection.
Electrical Engineering
We provide comprehensive electrical engineering services including power distribution, lighting design, and emergency power systems. Our experts implement energy-efficient solutions with smart grid integration and renewable energy systems. The team specializes in complex electrical infrastructure for healthcare facilities and mission-critical buildings.
Commissioning Services
Our commissioning process ensures optimal building system performance through rigorous testing and documentation. We verify mechanical, electrical, and plumbing systems meet design specifications and operational requirements. This includes functional testing of control sequences and energy performance validation for LEED-certified projects.
Energy Consulting
We offer energy consulting services that include life-cycle cost analysis, net-zero energy strategies, and carbon footprint reduction planning. Our consultants utilize building performance simulation tools to optimize energy efficiency and recommend renewable energy integration for commercial and institutional buildings.
Plumbing Design
Our plumbing design services focus on water efficiency and sustainable systems integration. We design advanced plumbing solutions including rainwater harvesting, greywater reuse, and high-efficiency fixture layouts. The team ensures compliance with green building standards while maintaining optimal system performance for commercial facilities.
People
Andy Frichtl
Managing Principal
With over 30 years of engineering experience, Andy leads Interface's strategic growth while maintaining active involvement in complex project design and client relationships across multiple market sectors.
Hormoz Janssens
Managing Principal
A recognized expert in sustainable building systems, Hormoz oversees technical operations and innovation initiatives, bringing 25+ years of experience in high-performance building design and commissioning.
Roger Frechette
Managing Principal
Roger directs Interface's national practice development, focusing on expanding engineering services and maintaining quality standards across all office locations through his 30-year industry expertise.
Shawn MacLean
Principal
As a senior electrical engineer, Shawn specializes in complex power systems design for mission-critical facilities, with particular expertise in healthcare and institutional projects requiring high-reliability electrical infrastructure.
Andrew Lasse
Principal
Andrew leads mechanical engineering teams on large-scale commercial projects, applying his expertise in energy-efficient HVAC systems and sustainable building technologies to achieve high-performance outcomes.
Questions
What engineering services does Interface offer?
We provide mechanical, electrical, plumbing design, commissioning services, and energy consulting for commercial and institutional buildings.
How long has Interface Engineering been in business?
We've delivered engineering solutions since our founding in 1969, with 55 years of continuous service.
Are you a sustainable design firm?
Yes, we specialize in sustainable engineering solutions that optimize building performance while minimizing environmental impact.
Do you work on LEED-certified projects?
We have extensive experience with LEED certification requirements and have completed multiple award-winning green building projects.
Where are your offices located?
We operate from ten offices in Portland, Sacramento, Washington D.C., New York, Honolulu, and other major cities.
What building types do you specialize in?
We work across healthcare, education, government, and commercial sectors with specialized expertise in complex institutional facilities.
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