Aleksandr Berestovoi

About Aleksandr Berestovoi

HVAC systems are everywhere — in homes, offices, hospitals, and public buildings.Yet very few people truly understand how these systems work, how they fail, and how much they affect the air we breathe every day.For more than 15 years, I have been working with HVAC systems from both sides:in the field — where systems actually operate, and in engineering strategy — where they are designed, evaluated, and improved.My work focuses on real system performance, not just theoretical efficiency.Over the years I have:• Modernized HVAC infrastructure with a focus on energy efficiency and emissions reduction• Conducted technical audits across facilities ranging from power plants to residential buildings• Implemented automation systems for HVAC, lighting, and water control• Built and managed technical teams of up to 140 specialists• Developed national-level checklists and SOPs based on mechanical codes and real field conditionsToday my focus is on indoor air quality, ventilation safety, and HVAC system performance.I share insights about how building air systems actually work — and how they can work better.

Experience

1. Founder & Hvac Systems Expert

   Mainduct Inc

   Jun 2022 — Present · New York, NY, US

   MainDuct focuses on improving ventilation systems, indoor air quality, and real HVAC system performance in residential and commercial buildings.Much of the HVAC infrastructure in the U.S. is outdated — especially in dense urban areas like New York and New Jersey. In many buildings, aging systems, code violations, and poor installation practices lead to significant heat and airflow losses.In some cases, system losses can reach up to 60%, increasing energy costs, reducing indoor air quality, and placing unnecessary strain on power grids.1500+ residential and commercial HVAC systems inspected and serviced across the NYC area.Key areas of work• HVAC system diagnostics and inspections• Ventilation optimization and air duct cleaning• Dryer vent safety and fire-risk prevention• HVAC efficiency improvements and thermal loss reduction• Development of inspection protocols and technical checklistsAreas of expertise• Indoor Air Quality• Ventilation Systems• HVAC Performance Diagnostics• Energy Efficiency• Building Air Systems

Education

• St. Petersburg State University of Water Communications,

  Master's degree in Naval Engineering, Master's degree in Engineering Management, Mechanical Engineering

  2000 — 2006