HVAC Engineering

Our in-house team of mechanical engineers collaborates with architects, contractors, and facility owners to develop intelligent, scalable, and fully integrated mechanical system designs. We provide both standalone HVAC consulting and full design-build engineering services across commercial, industrial, and high-performance residential projects.

Core Engineering Capabilities

We provide full mechanical engineering support for HVAC system infrastructure, performance, and controls, including:

• Air Handling Unit (AHU) Sizing and Layout – Static pressure calculations, filtration performance, fan selection
• Ductwork and Airflow Engineering – Sizing, velocity targets, distribution balancing, and pressure drop modeling
• Chilled Water and Hydronic Systems – Pump head calculations, pipe sizing, expansion tank selection, and flow control
• Boiler and Chiller System Engineering – Plant design integration, redundancy planning, high-efficiency sequencing
• Mechanical Control System Integration – VFD panel engineering, BAS/BCS specifications, and startup sequences
• Indoor Air Quality Engineering – Fresh air calculations, CO2 monitoring strategies, filtration design to MERV/HEPA standards
• Commissioning and Validation – System review, balancing reports, functional performance testing (FPT), and turnover documentation

Project Types We Support

Our HVAC engineering services are tailored to a wide range of building types and system complexities, including:

• Healthcare facilities with critical pressurization and filtration needs
• Higher education and institutional buildings with complex zoning and lab ventilation
• Multifamily residential and high-rise buildings with centralized mechanical systems
• Industrial and manufacturing environments that require robust hydronics, dust collection, and explosion-proof HVAC
• Retrofits and system upgrades, including analysis of legacy infrastructure and code-driven redesign

Work With Our Engineering Team

At Stephany Associates, we work directly with mechanical contractors, architects, and developers to provide engineering you can build from. Each project is supported by mechanical engineers and HVAC system experts who understand timelines and site coordination.