Long Island City's dense commercial corridor demands HVAC systems that perform under pressure without draining your energy budget. Denair HVAC's VFD retrofit services modernize existing equipment with variable frequency drive technology, slashing motor energy consumption by up to 58%, extending equipment lifespan, and bringing your building into compliance with NYC's evolving LL97 sustainability mandates—all without a full system replacement.
Comprehensive VFD retrofit and HVAC modernization solutions for commercial and residential buildings across Long Island City.
Upgrade existing HVAC motors with variable frequency drives to eliminate fixed-speed energy waste. Our certified technicians integrate VFDs into current systems with minimal downtime, delivering immediate energy savings without full equipment replacement.
Modernize outdated equipment with targeted retrofits and expert tuning to optimize performance, enhance comfort, and meet current energy standards. Specialized programs prioritize uptime, redundancy, and compliance for mission-critical facilities.
Integrate smart controls and automated energy management systems alongside VFD retrofits to significantly reduce operational costs and environmental impact across your Long Island City commercial property.
Navigate NYC's Local Law 97 sustainability mandates with confidence. Our VFD retrofit solutions are engineered to reduce your building's carbon footprint and keep you compliant with New York City's evolving emissions requirements.
Protect your VFD and HVAC investment with proactive maintenance plans that extend system lifespan, reduce energy costs, and prevent surprise breakdowns. Free preventive maintenance available for up to 18 months on all new installations.
Certified air testing and balancing services performed after every VFD retrofit installation to verify systems operate at peak efficiency. Detailed certified reports are provided for documentation and compliance purposes.
Our application engineers conduct a thorough on-site assessment of your Long Island City facility, evaluating existing HVAC motors, drives, and control systems. We identify precise energy-saving opportunities and document baseline consumption to establish measurable retrofit goals.
See how Denair HVAC has helped Long Island City and NYC businesses cut energy costs and modernize their systems.
"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"
"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!"
"Impeccable install. You can tell they're pros the moment they walk in."
"Denair is professional and courteous."
"Really great to work with, awesome staff, happy to work with them anytime again in the future! Highly recommend."
"I was able to upgrade my cooling towers through the help of Denair and I did love their Service rendered, Wonderful Experience."
"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."
"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"
"Dennis was always available when I called on him. Never was any additional work generated on any quote/contract awarded. Reliable, expert and a pleasure to work with. A real value!"
"I am very pleased with the service and professionalism we receive from all the techs and staff at Denair."
"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..."
"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."
"These guys are the best. Installed my central air condition. They are quick, thorough and honest! I definitely recommend them."
"excellent work and quality"
"Denair is the most dependable HVAC service company in New York!"
"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"
"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!"
"Impeccable install. You can tell they're pros the moment they walk in."
"Denair is professional and courteous."
"Really great to work with, awesome staff, happy to work with them anytime again in the future! Highly recommend."
"I was able to upgrade my cooling towers through the help of Denair and I did love their Service rendered, Wonderful Experience."
"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."
"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"
"Dennis was always available when I called on him. Never was any additional work generated on any quote/contract awarded. Reliable, expert and a pleasure to work with. A real value!"
"I am very pleased with the service and professionalism we receive from all the techs and staff at Denair."
"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..."
"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."
"These guys are the best. Installed my central air condition. They are quick, thorough and honest! I definitely recommend them."
"excellent work and quality"
"Denair is the most dependable HVAC service company in New York!"
"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"
"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!"
"Impeccable install. You can tell they're pros the moment they walk in."
"Denair is professional and courteous."
"Really great to work with, awesome staff, happy to work with them anytime again in the future! Highly recommend."
"I was able to upgrade my cooling towers through the help of Denair and I did love their Service rendered, Wonderful Experience."
"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."
"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"
"Dennis was always available when I called on him. Never was any additional work generated on any quote/contract awarded. Reliable, expert and a pleasure to work with. A real value!"
"I am very pleased with the service and professionalism we receive from all the techs and staff at Denair."
"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..."
"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."
"These guys are the best. Installed my central air condition. They are quick, thorough and honest! I definitely recommend them."
"excellent work and quality"
"Denair is the most dependable HVAC service company in New York!"
Denair HVAC combines 19+ years of New York HVAC expertise with proven VFD retrofit capabilities to deliver measurable savings and lasting results.
Our VFD retrofits reduce HVAC energy consumption by up to 58%, directly lowering utility bills for Long Island City commercial buildings.
All 28 technicians hold OSHA 40-hour, Scaffolding, and major manufacturer certifications, ensuring code-compliant work on every NYC project.
We absorb all unintended cost overruns. Your proposal price is your final price—no surprise invoices after project completion.
Recognized as one of America's fastest-growing companies, Denair HVAC brings nationally acclaimed expertise to every Queens and NYC retrofit job.
Experienced professionals dedicated to delivering exceptional VFD retrofit results.
Founder & CEO
Dennis founded Denair HVAC in March 2007 with one man and a beat-up used truck right after being laid off from a 7-year career in the HVAC industry. Armed with over 17 years of hands-on HVAC expertise and deep knowledge of Brooklyn and NYC's commercial building landscape, he grew the company to $2 million in revenue within just five years. Under his strategic leadership, Denair earned recognition by Inc. 5000 as one of America's fastest-growing companies. Dennis oversees all aspects of the business—from rooftop unit replacement projects across Brooklyn's flat-roof commercial buildings to large-scale capital improvement contracts throughout the NYC metro area—ensuring every client receives honest, high-quality service.
Financial Manager
Tanya brings over 15 years of experience in finance, budgeting, and forecasting to the Denair HVAC team. She manages all aspects of accounting, financial planning, and insurance for the company—ensuring every rooftop unit replacement and installation project is backed by financial integrity and transparent cost management. Her meticulous approach to budgeting directly supports Denair's ability to offer fixed proposal pricing and value-engineered solutions that consistently save Brooklyn and NYC clients thousands of dollars. Tanya's financial stewardship has been a cornerstone of Denair's steady growth from a one-man operation to a recognized industry leader.
Lead Estimator
Farrukh has been with Denair HVAC since 2010, making him one of the company's longest-serving and most trusted team members. As Lead Estimator, he is responsible for preparing comprehensive and timely bid proposals for rooftop unit replacement and installation projects across Brooklyn and the wider NYC metro area. His expertise in tracking opportunities with vendors, subcontractors, and customers ensures every scope is accurately priced—with alternates and revisions provided for each bid. Farrukh's value engineering approach has helped Brooklyn property managers and business owners save significantly on their HVAC capital improvement budgets.
Service Manager
Thomas leads Denair HVAC's service operations, overseeing fast response times, efficient technician scheduling, and consistent service quality for rooftop unit projects throughout Brooklyn. He coordinates field technicians and customer communications to keep RTU systems running reliably—minimizing downtime for commercial tenants, property managers, and building operators. Thomas ensures that Denair's commitment to same-day service (usually within 4 hours for emergencies) is consistently met, and that every rooftop unit installation or repair is delivered with the smooth, professional experience Brooklyn clients expect from an Inc. 5000-recognized contractor.
Application Engineer
Ramil designs and supports HVAC systems tailored to the specific performance and efficiency needs of each Brooklyn building. Specializing in rooftop unit applications, he oversees equipment selection, technical planning, and engineering support to ensure every RTU installation delivers long-lasting reliability, meaningful energy savings, and full compliance with NYC building codes and LL97 sustainability mandates. Ramil's engineering expertise is particularly valuable for Brooklyn's dense stock of flat-roof commercial and mixed-use buildings, where precise load calculations and rooftop structural considerations are critical to a successful RTU replacement or new installation.
VP Business Development
Anastasiya leads Denair HVAC's business development and new client acquisition strategy, with a focus on building long-term partnerships with property management firms, general contractors, and building owners across Manhattan and the greater NYC metro area. In her role, she identifies market opportunities, develops strategic partnerships, and implements growth initiatives that have helped Denair expand its footprint across some of New York's most recognized property management companies—including AKAM, Douglas Elliman, Related, and Rose Associates. Anastasiya's client-first approach ensures that every new relationship is built on transparency, reliability, and measurable value.
Marketing Manager
Natalja oversees Denair HVAC's brand presence and client relationships, ensuring that building owners, property managers, and facility operators across Manhattan can easily discover and connect with the HVAC expertise they need. As Marketing Manager, she develops and executes strategies that communicate Denair's unique value—from 24/7 emergency availability to Inc. 5000 recognition—to the right audiences across New York City's competitive commercial real estate and residential markets. Her work building public relations and strategic outreach has played a significant role in Denair's growth and continued reputation as one of NYC's most trusted HVAC contractors.
A VFD (Variable Frequency Drive) retrofit involves installing an electronic controller on your existing HVAC motor that adjusts the motor's speed based on actual demand rather than running it at full speed constantly. This eliminates energy waste during partial-load conditions—which represent the majority of operating hours—without requiring full equipment replacement. Our engineers assess your current system and integrate the VFD with existing controls and BMS for seamless operation.
Our certified HVAC engineers are ready to assess your building and answer every question.
Denair HVAC provides VFD retrofit services across Long Island City, all NYC boroughs, and the greater metro area.
11+ Regions
Service Area
24/7 Emergency
Availability
4.7★ Rated
Customer Rating
Contact us to confirm VFD retrofit service availability at your Long Island City or NYC location.
Recognized among America's fastest-growing companies
Full team certified to OSHA 40-hour safety standards
Licensed Mechanical/HVAC Contractor in New York State
Fill out the form below and a Denair HVAC specialist will contact you to schedule a no-obligation site assessment, provide a detailed proposal with fixed pricing, and answer any questions about your Long Island City VFD retrofit project.
For immediate assistance, feel free to give us a direct call at 718-791-5074.
For immediate assistance, feel free to give us a direct call at 718-791-5074.