HVAC System Design

Engineering Smarter, More Efficient System Designs

Our engineers perform comprehensive HVAC load calculations, ductwork design, and ventilation planning to ensure proper airflow, comfort, and energy efficiency.

Whether you're starting a new construction project or upgrading an existing system, we provide tailored hvac system design that meets your building's unique requirements. From ductwork design and ventilation planning to advanced HVAC load calculations, we ensure optimal performance, indoor air quality, and sustainability.

Personalized Service on Every Project

At Stephany Associates, we believe that successful HVAC design services are built on strong relationships. Every client receives personalized, one-on-one support, whether it’s for a brand-new system, a retrofit, or a performance upgrade. You’ll always have access to a dedicated sales representative and an in-house engineer, ready to guide you through every phase of your project.

We don’t just deliver engineered plans—we deliver peace of mind. Our team is committed to responsive communication, transparent collaboration, and tailored service to ensure your system functions exactly as it should, from concept to completion.

Why Choose Stephany Associates?

• Experienced HVAC Engineering Team: Experts in commercial HVAC design, residential HVAC design, and energy-efficient HVAC systems.
• Code-Compliant: We follow ASHRAE standards and more.
• Future-Ready Systems: We integrate smart controls, HVAC zoning strategies, and building automation systems (BAS) for long-term performance.
• Sustainable & Integrated Solutions: From VRF system design to chiller and boiler system planning, we focus on reducing environmental impact through smart engineering.

Our Capabilities

• HVAC system design planning and layout
• Indoor air quality and airflow optimization
• Smart HVAC system integration
• HVAC retrofits and upgrades
• Full MEP coordination for complex projects

Applied Hydronic and Mechanical System Design

Through Stephany Applied Industrial, we deliver advanced mechanical and hydronic system design for specialized applications. Our engineers bring deep experience in:

• Pump system design
• Valve selection
• Expansion tank sizing
• Chemical feed systems, glycol feeders, and corrosion control
• Boiler system integration
• And MORE!

Ductwork, Flue Systems & Equipment Solutions

Our Stephany Supply division complements our engineering expertise with the components and fabrication capabilities needed to complete your system. We provide:

• Spiral duct and flue design

We understand that every building has unique needs. If you have any questions, please contact us today. We’d be happy to discuss past projects we've completed and how we can assist with your specific project.

• Healthcare 
• Education 
• Commercial & Light Commercial 
• Industrial & Manufacturing 
• Tenant Fit-Outs 
• Government & Institutional Facilities