Business Details
33 Years
experience
Custom Engineering Solutions for Commercial Buildings
APEX Engineering has served the Chippewa Valley and Midwest for over 30 years, delivering specialized HVAC, plumbing, and electrical engineering designs. Founded in 1993, our firm combines decades of practical experience with continuous education to create sustainable, code-compliant systems tailored to client needs. Our team of licensed engineers and technicians prioritizes energy efficiency, budget alignment, and collaboration with architects and contractors. We extend our expertise beyond Wisconsin to Michigan, North Dakota, and other Midwest states, maintaining a commitment to progressive engineering solutions.Our partnerships with Focus On Energy and local communities underscore our dedication to innovation and client satisfaction. Through long-term relationships, we ensure systems meet evolving industry standards while supporting regional organizations like the Boys and Girls Clubs and St. Jude Children's Hospital.
Services
HVAC Design
Plumbing Systems
Electrical Engineering
Energy Efficiency
Construction Administration
System Analysis
Building Power Design
Lighting Modeling
Fire Alarm Systems
Renewable Energy Integration
Details
- Year established: 1993
Highlights and features
- 30+ years of specialized engineering experience in the Midwest
- Comprehensive services spanning HVAC, plumbing, and electrical systems
- Licensed professionals in Wisconsin and Minnesota
- Commitment to energy-efficient, code-compliant building systems
- Proven track record with schools, government facilities, and industrial projects
Services
HVAC Design
We engineer heating, ventilation, and air conditioning systems tailored to commercial spaces, incorporating geothermal, VRF, and energy recovery technologies. Our designs meet ASHRAE standards while optimizing energy efficiency through collaboration with Focus On Energy. Projects range from small facilities to large-scale schools requiring complex climate control solutions.
Electrical Engineering
Our electrical design covers building power systems, lighting modeling, fire alarm integration, and renewable energy coordination. We create code-compliant solutions for new constructions and retrofits, including emergency power systems and utility-dependent infrastructure. Expertise extends to low-voltage systems and site lighting analysis for commercial and industrial clients.
Plumbing Systems
We design comprehensive plumbing networks including domestic water, storm drainage, and specialized gas piping systems. Our approach addresses sanitary, vent, and grease waste requirements while ensuring compliance with local codes. Solutions integrate seamlessly with HVAC systems for optimal building performance in commercial and industrial settings.
Energy Efficiency
We specialize in creating energy-efficient building systems through energy recovery technologies, LED lighting modeling, and Focus On Energy partnerships. Our team conducts system analyses to identify efficiency opportunities and implements rebates programs, reducing long-term operational costs for clients across the Midwest.
Construction Administration
We provide full-cycle construction administration including budgeting, site observation, and as-built documentation. Our team coordinates with contractors to ensure designs meet specifications, addressing challenges during construction while maintaining compliance with project timelines and budgetary constraints.
People
Justin Musser
President
Justin Musser became an owner in 2018 after 19 years of engineering experience at APEX. As President, he oversees operations and design strategy, leveraging his expertise in HVAC and electrical systems for commercial projects.
Landon Julson
Vice President
Landon Julson joined APEX in 2017 and became an owner in 2025. As Vice President, he focuses on plumbing system design and project coordination, bringing technical precision to diverse commercial and industrial engineering challenges.
Questions
What services does APEX Engineering offer?
We provide HVAC, plumbing, and electrical system design for commercial buildings, including energy analysis, construction administration, and renewable energy integration.
Which states does APEX Engineering operate in?
We primarily serve Wisconsin and Minnesota with licensed professionals, but have completed projects in Michigan, North Dakota, South Dakota, Nebraska, Iowa, and Indiana.
How does APEX ensure energy efficiency?
We collaborate with Focus On Energy for analysis and rebates, incorporating geothermal systems, energy recovery technologies, and sustainable design principles.
What building types does APEX design for?
Our experience spans schools, government facilities, industrial sites, commercial buildings, and specialized projects from 500 to 150,000 square feet.
Who are APEX Engineering's key team members?
Current leadership includes President Justin Musser (owner since 2018) and Vice President Landon Julson (owner since 2025), supported by licensed engineers and technicians.
