Energy Recovery & DOAS Systems 

Dykier Engineering provides expert energy recovery and dedicated outdoor air system (DOAS) solutions for commercial and industrial facilities throughout Orange County, California. These advanced HVAC systems are designed to improve indoor air quality while reducing energy consumption by conditioning and delivering fresh outdoor air in the most efficient way possible. Our team specializes in the design, installation, replacement, and service of energy recovery ventilators (ERVs), heat recovery systems, and DOAS equipment for office buildings, healthcare facilities, schools, manufacturing plants, laboratories, and other commercial properties. Whether you're constructing a new facility or upgrading an existing HVAC system, Dykier Engineering delivers customized ventilation solutions that enhance occupant comfort, improve energy efficiency, and support long-term building performance.