Duct Fan Installation
Expert installation of inline axial and duct fans for new construction and retrofit projects, ensuring proper sizing, placement, and code-compliant integration with existing ductwork systems.
Manhattan's dense high-rises, co-ops, and commercial lofts demand reliable inline axial and duct fan solutions to maintain air quality and ventilation compliance. Denair HVAC brings 19+ years of hands-on mechanical expertise to every installation, replacement, and repair—ensuring your building's airflow meets NYC code requirements while controlling energy costs year-round.
Comprehensive inline and duct fan solutions for residential, commercial, and industrial buildings across Manhattan.
Expert installation of inline axial and duct fans for new construction and retrofit projects, ensuring proper sizing, placement, and code-compliant integration with existing ductwork systems.
Fast diagnosis and repair of failed or underperforming duct fans, including motor replacements and full unit swaps, to restore proper airflow and ventilation without prolonged downtime.
Custom HVAC engineering and shop drawings to design efficient inline fan layouts tailored to your building's airflow demands, space constraints, and NYC mechanical code requirements.
Certified air testing and balancing services performed after fan installation to verify systems operate at peak performance, providing documented reports for compliance and building management records.
Scheduled maintenance plans that include inspection, cleaning, and lubrication of inline and duct fans to extend equipment life, reduce energy costs, and prevent unexpected breakdowns.
24/7 emergency response for failed duct fans in commercial and residential buildings, with certified technicians typically on-site within 4 hours to restore critical ventilation operations.
Our engineers evaluate your Manhattan property's existing ductwork, airflow demands, and space constraints—accounting for building type, floor count, and NYC mechanical code requirements—to identify the optimal fan solution.
See how building owners and property managers across NYC rely on Denair HVAC for their ventilation needs.
"I recently used Denair for some repairs to my small two-story office building, and I have to say they are the most honest, hard-working and value focused HVAC provider I have ever experienced! Not only was the price competitive, but more importantly they helped reduce my energy costs from an..."
"I was able to upgrade my cooling towers through the help of Denair and I did love their Service rendered, Wonderful Experience."
"Denair is the most dependable HVAC service company in New York!"
"I am very pleased with the service and professionalism we receive from all the techs and staff at Denair."
"Great company, our office was getting hotter by the minute. Denair had a tech on site with in the hour and the ac working perfect in two hours"
"Great reliable HVAC company, a very rare thing to say these days — the pricing is very competitive and the work is reliable. The staff is professional and courteous, they clean up after themselves and always answer. I would recommend them!"
"Denair is professional and courteous."
"Impeccable install. You can tell they're pros the moment they walk in."
"They have the best Engineering Service I have ever seen; they are always available on request and perform the maintenance in the most efficient way. Great Service."
"Crew was respectful, fast, and left our place spotless. Five stars."
"excellent work and quality"
"Really great to work with, awesome staff, happy to work with them anytime again in the future! Highly recommend."
"What a great service. I randomly called to get multiple system inspected in my building. They came on time, done a great job and provided a detailed report. I love their transparency."
"I didn't even know about their referral program sending DENAIR to one of my commercial tenants. It was a nice surprise to get paid for referral. Based on the tenant's feedback, the job was well-done. Now it's no brainer to recommend DENAIR to all my tenants"
"Amazing HVAC vendor who is doing multiple accounts for my company."
"I recently used Denair for some repairs to my small two-story office building, and I have to say they are the most honest, hard-working and value focused HVAC provider I have ever experienced! Not only was the price competitive, but more importantly they helped reduce my energy costs from an..."
"I was able to upgrade my cooling towers through the help of Denair and I did love their Service rendered, Wonderful Experience."
"Denair is the most dependable HVAC service company in New York!"
"I am very pleased with the service and professionalism we receive from all the techs and staff at Denair."
"Great company, our office was getting hotter by the minute. Denair had a tech on site with in the hour and the ac working perfect in two hours"
"Great reliable HVAC company, a very rare thing to say these days — the pricing is very competitive and the work is reliable. The staff is professional and courteous, they clean up after themselves and always answer. I would recommend them!"
"Denair is professional and courteous."
"Impeccable install. You can tell they're pros the moment they walk in."
"They have the best Engineering Service I have ever seen; they are always available on request and perform the maintenance in the most efficient way. Great Service."
"Crew was respectful, fast, and left our place spotless. Five stars."
"excellent work and quality"
"Really great to work with, awesome staff, happy to work with them anytime again in the future! Highly recommend."
"What a great service. I randomly called to get multiple system inspected in my building. They came on time, done a great job and provided a detailed report. I love their transparency."
"I didn't even know about their referral program sending DENAIR to one of my commercial tenants. It was a nice surprise to get paid for referral. Based on the tenant's feedback, the job was well-done. Now it's no brainer to recommend DENAIR to all my tenants"
"Amazing HVAC vendor who is doing multiple accounts for my company."
"I recently used Denair for some repairs to my small two-story office building, and I have to say they are the most honest, hard-working and value focused HVAC provider I have ever experienced! Not only was the price competitive, but more importantly they helped reduce my energy costs from an..."
"I was able to upgrade my cooling towers through the help of Denair and I did love their Service rendered, Wonderful Experience."
"Denair is the most dependable HVAC service company in New York!"
"I am very pleased with the service and professionalism we receive from all the techs and staff at Denair."
"Great company, our office was getting hotter by the minute. Denair had a tech on site with in the hour and the ac working perfect in two hours"
"Great reliable HVAC company, a very rare thing to say these days — the pricing is very competitive and the work is reliable. The staff is professional and courteous, they clean up after themselves and always answer. I would recommend them!"
"Denair is professional and courteous."
"Impeccable install. You can tell they're pros the moment they walk in."
"They have the best Engineering Service I have ever seen; they are always available on request and perform the maintenance in the most efficient way. Great Service."
"Crew was respectful, fast, and left our place spotless. Five stars."
"excellent work and quality"
"Really great to work with, awesome staff, happy to work with them anytime again in the future! Highly recommend."
"What a great service. I randomly called to get multiple system inspected in my building. They came on time, done a great job and provided a detailed report. I love their transparency."
"I didn't even know about their referral program sending DENAIR to one of my commercial tenants. It was a nice surprise to get paid for referral. Based on the tenant's feedback, the job was well-done. Now it's no brainer to recommend DENAIR to all my tenants"
"Amazing HVAC vendor who is doing multiple accounts for my company."
Manhattan building owners and property managers trust Denair HVAC for proven expertise, transparent pricing, and dependable results.
Over 19 years installing and servicing duct fans across Manhattan, Brooklyn, and all NYC boroughs.
Our approach consistently saves clients up to 35% on HVAC budgets without compromising system performance or compliance.
Round-the-clock emergency repairs with technicians typically on-site within 4 hours—critical for Manhattan's high-occupancy buildings.
Registered Mechanical/HVAC Contractor with OSHA-40 certification, manufacturer training, and full compliance with NYC mechanical codes.
Experienced professionals dedicated to Manhattan's ventilation and HVAC needs.
Founder & CEO
Dennis founded Denair HVAC in March 2007, building the company from a single used truck into one of America's fastest-growing HVAC contractors, recognized by Inc. 5000. With over 17 years of hands-on HVAC industry experience, Dennis holds deep expertise across all facets of the business—from field operations to strategic growth. Under his leadership, Denair scaled from zero to $2 million in annual revenue within just five years, growing into a team of 28 certified technicians serving Manhattan and the broader New York Metro Area. His commitment to honesty, value engineering, and client satisfaction continues to drive every project Denair takes on.
Application Engineer
Ramil is Denair HVAC's Application Engineer, specializing in designing and supporting HVAC systems tailored to each building's unique performance and efficiency needs. For inline axial and duct fan projects, Ramil oversees equipment selection, technical planning, and ductwork layout to ensure every system achieves maximum airflow efficiency while meeting NYC mechanical codes. His work spans Manhattan's diverse building stock—from pre-war co-ops to modern commercial towers—providing long-lasting, energy-efficient, and code-compliant ventilation solutions backed by detailed shop drawings and engineering documentation.
Service Manager
Thomas leads Denair HVAC's service operations, overseeing the scheduling, dispatch, and performance of the company's certified technician team across Manhattan and the five boroughs. He ensures fast response times, efficient coordination, and consistent service quality on every inline axial and duct fan job—from routine maintenance visits to urgent emergency callouts. Thomas manages direct communication between field teams and building managers, reducing system downtime and ensuring tenants, staff, and operations stay comfortable regardless of season. His operational oversight is a key reason Denair delivers 80% of projects ahead of schedule.
Lead Estimator
Farrukh has been a cornerstone of Denair HVAC since 2010, bringing deep expertise in bid proposal preparation for HVAC projects of all scales. As Lead Estimator, he is dedicated to every bid—providing detailed scope breakdowns, alternates, and revisions that help property managers and building owners in Manhattan make informed decisions. Farrukh's value engineering approach routinely identifies cost-saving opportunities, contributing to the over $186,000 in client savings Denair has delivered on Commercial HVAC and ductwork projects. His track record across 400+ projects means your inline and duct fan estimate is in highly capable hands.
Labor costs to replace a bathroom exhaust fan in Manhattan typically range from $150 to $350, depending on accessibility, existing wiring conditions, and whether ductwork modifications are needed. NYC buildings often present unique challenges such as concrete ceilings or shared duct chases that can affect installation time. Contact Denair HVAC for a free, no-obligation estimate specific to your property.
Speak with our certified HVAC specialists for expert guidance and a free estimate.
Denair HVAC serves Manhattan and the entire New York Metro Area with expert inline axial and duct fan services.
11 Regions Served
Service Area
24/7 Service
Emergency Availability
400+ Projects
Projects Completed
Contact us to confirm coverage and get a free estimate for your building.
Named one of America's fastest-growing companies.
Full OSHA safety compliance for all field operations.
Licensed Mechanical/HVAC Contractor in New York State.
Fill out the form below and a Denair HVAC specialist will reach out promptly to discuss your ventilation needs, provide expert recommendations, and deliver a transparent, no-obligation estimate for your Manhattan property.
For immediate assistance, feel free to give us a direct call at 718-791-5074 You can also send us a quick email at
For immediate assistance, feel free to give us a direct call at 718-791-5074 You can also send us a quick email at