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A Trusted Partner for Building Performance Optimization
Northwest Engineering Service, Inc. (NWESI) has proudly served the Pacific Northwest since 1958. With decades of experience, we are a leading provider of independent testing, adjusting, and balancing (TAB), commissioning, and energy services. Our team of skilled engineers and technicians are dedicated to ensuring the optimal performance, comfort, and energy efficiency of your facility.
Engineering Solutions for Every Project
Our comprehensive services encompass all aspects of building systems, including:
Building Envelope Testing
- Air Barrier Testing (BET) to identify air leakage and energy loss.
Commissioning
- Verification and documentation of building systems to ensure proper installation and performance.
Retro-Commissioning
- Fine-tuning existing systems to boost efficiency and comfort.
Testing, Adjusting, and Balancing (TAB)
- Comprehensive testing of mechanical, electrical, and plumbing systems to ensure proper operation and balance.
Other Services
- Building HVAC Tune-Ups
- Fire & Smoke Damper Testing
- Dust Monitoring & Mitigation
- Cleanroom Performance Testing
- Semiconductor Tool Installation & Balancing
- Energy Assessments
Customer-Focused Approach
NWESI prioritizes client satisfaction and works collaboratively with every client to understand their unique needs and goals. Our team of engineers and technicians actively listen to your concerns and actively suggest solutions that meet your specific requirements. We provide detailed reports and recommendations, ensuring that you make informed decisions about your building performance.
Experience and Expertise
With decades of experience in various projects, NWESI has developed a deep understanding of complex systems and their interaction in different facility types. Our staff applies proven engineering principles, extensive knowledge, and a collaborative approach to deliver superior results.
Join us in Creating a Comfortable and Efficient Future for Your Building
Contact Northwest Engineering Service, Inc. today and discover how we can help you optimize the performance of your facility. We look forward to partnering with you for sustainable and cost-effective solutions.
Company Overview
Northwest Engineering Service, Inc. is a company that has been providing testing, balancing, commissioning, and troubleshooting services for building systems for over 50 years. They work closely with owners, architects, engineers, and contractors to ensure optimal building performance, and their experienced engineers and field technicians have numerous certifications in areas such as USGBC, NEBB, AABC, EMA, and others.
Services
The company offers a range of services, including test and balancing (TAB), commissioning, energy, and sustainability. Their experts have hands-on knowledge of engineering components, equipment, and building systems, which enables them to troubleshoot and resolve complex issues.
Experience
With over five decades of experience, Northwest Engineering Service, Inc. has built a strong reputation in the industry. They have worked on numerous projects, from new construction to existing buildings, and have developed a deep understanding of the importance of building performance.

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