Founded in 2021 and serving Brooklyn, Staten Island, Manhattan, Bronx and Queens, we specialize in thorough air duct and dryer vent cleaning, maintenance, insulation, replacement and installation; attic ventilation installation; oil to gas furnace conversion and furnace maintenance; smart thermostat installation, repair and replacement; HVAC inspection and maintenance; bird guard installation, bird nest removal; chimney inspection, sweeping and relining. We’re dedicated to creating a safer environment for you and your loved ones.

Company Mission

Our goal is to make the “Eco Home of the Future” a reality for all American households.

Air Duct cleaning video

We are striving to create safe, energy-efficient and wholesome living spaces through the implementation of well-designed infrastructure and the use of energy-efficient materials and equipment. We advocate for a lifestyle of mindful energy use, aligned with sustainable growth and environmental awareness.

Alexander Berestovoi, founder and chief engineer, shares his vision:

“Witnessing the suboptimal infrastructure in New York City, from ventilation systems and chimneys to insulation and roofing, is disheartening for me as an engineer.

The flaws is these systems such as leaks and the systems’ inadequate cleaning lead to substantial heat loss during winter and cooling during summer, which result in a minimum increase of 50% in energy costs.

Furthermore, systems that don’t meet standards or receive the proper upkeep put occupants at risk for serious respiratory conditions, allergies; and might even cause fires.

That’s why my team and I are devoted to thoroughly improving the condition of every building we work on. Our goal is to provide building owners with comprehensive knowledge of their property’s status and guide them in optimizing their systems to prevent energy loss and potential health hazards.”


  • Reduced allergy symptoms thanks to cleaner air circulating throughout your home.
  • Peace of mind knowing your dryer vent is clean and functioning properly, no risk of fire.
  • A cozy, efficient fireplace thanks to a clean chimney free of hazardous debris.

Ready for a breath of fresh air? Contact Mainduct today for a free quote and experience the difference a professional cleaning can make.

Established by Alexander Berestovoi, an engineer with 15 years of expertise in enhancing the energy efficiency of commercial and residential buildings, MainDuct Inc. is dedicated to transforming the industry through the adoption of modern technologies and the modernization of outdated infrastructure.