Denair HVAC delivers precision-engineered Yaskawa Variable Frequency Drive solutions designed for New York's demanding commercial and residential HVAC environments. From energy-hungry high-rises in Manhattan to large mechanical plants in Brooklyn, our certified technicians optimize motor speed control to slash energy consumption, extend equipment life, and ensure code-compliant performance year-round.
Comprehensive Yaskawa VFD services for HVAC systems—from engineering and installation to energy optimization and ongoing support.
Custom HVAC drive system design, load analysis, and Yaskawa drive selection tailored to your building's mechanical requirements. Value-engineered proposals can reduce project costs by up to 35% without compromising performance or compliance.
Turnkey Yaskawa VFD installation into new or existing HVAC systems, including panel wiring, control integration, and BMS connectivity. Certified technicians complete on-site commissioning to ensure drives operate correctly from day one.
Deploy smart Yaskawa drive controls to significantly cut energy costs and reduce environmental impact. VFD-driven motor speed optimization can reduce HVAC energy consumption by up to 58%, delivering measurable savings on utility bills.
Retrofit legacy HVAC equipment with Yaskawa VFDs to modernize performance without full system replacement. Targeted upgrades optimize airflow, pump, and fan control to meet current NYC energy standards and LL97 compliance requirements.
Post-installation air test, balancing, and performance verification for all Yaskawa drive-integrated HVAC systems. Certified reports are provided upon completion to confirm systems are operating at peak efficiency and within design parameters.
Proactive Yaskawa VFD maintenance plans to extend drive lifespan, prevent unexpected failures, and sustain energy efficiency. Includes firmware checks, thermal inspections, parameter verification, and performance reporting on a scheduled basis.
Our application engineers visit your NYC facility to evaluate existing HVAC equipment, motor loads, electrical infrastructure, and operational demands. This on-site analysis ensures every Yaskawa drive recommendation is matched precisely to your building's real-world performance requirements.
See how Denair HVAC's Yaskawa VFD solutions have transformed energy efficiency and reliability for New York clients.
"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 am very pleased with the service and professionalism we receive from all the techs and staff at Denair."
"I was able to upgrade my cooling towers through the help of Denair and I did love their Service rendered, Wonderful Experience."
"Amazing HVAC vendor who is doing multiple accounts for my company."
"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."
"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 the most dependable HVAC service company in New York!"
"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"
"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."
"Impeccable install. You can tell they're pros the moment they walk in."
"Really great to work with, awesome staff, happy to work with them anytime again in the future! Highly recommend."
"excellent work and quality"
"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!"
"These guys are the best. Installed my central air condition. They are quick, thorough and honest! I definitely recommend them."
"Crew was respectful, fast, and left our place spotless. Five stars."
"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 am very pleased with the service and professionalism we receive from all the techs and staff at Denair."
"I was able to upgrade my cooling towers through the help of Denair and I did love their Service rendered, Wonderful Experience."
"Amazing HVAC vendor who is doing multiple accounts for my company."
"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."
"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 the most dependable HVAC service company in New York!"
"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"
"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."
"Impeccable install. You can tell they're pros the moment they walk in."
"Really great to work with, awesome staff, happy to work with them anytime again in the future! Highly recommend."
"excellent work and quality"
"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!"
"These guys are the best. Installed my central air condition. They are quick, thorough and honest! I definitely recommend them."
"Crew was respectful, fast, and left our place spotless. Five stars."
"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 am very pleased with the service and professionalism we receive from all the techs and staff at Denair."
"I was able to upgrade my cooling towers through the help of Denair and I did love their Service rendered, Wonderful Experience."
"Amazing HVAC vendor who is doing multiple accounts for my company."
"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."
"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 the most dependable HVAC service company in New York!"
"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"
"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."
"Impeccable install. You can tell they're pros the moment they walk in."
"Really great to work with, awesome staff, happy to work with them anytime again in the future! Highly recommend."
"excellent work and quality"
"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!"
"These guys are the best. Installed my central air condition. They are quick, thorough and honest! I definitely recommend them."
"Crew was respectful, fast, and left our place spotless. Five stars."
Denair HVAC brings over 19 years of New York HVAC expertise, Yaskawa manufacturer training, and a proven track record of delivering measurable energy savings.
Technicians are trained and certified directly by Yaskawa and major HVAC manufacturers, ensuring expert-level VFD installation and support across all NYC boroughs.
Our VFD solutions reduce HVAC energy consumption by up to 58%, with clients saving over $186,000 on mechanical projects across New York in just six months.
All unintended project costs are absorbed at our expense. Every proposal includes a fixed price with full scope breakdowns—no surprise invoices, ever.
Our certified technicians are on call around the clock for rapid VFD diagnostics and repairs throughout the New York Metro Area, typically responding within 4 hours.
Experienced professionals dedicated to delivering superior Yaskawa VFD and HVAC solutions across New York.
Founder & CEO
Dennis founded Denair HVAC in March 2007 with a single used truck and a vision to bring affordable, high-quality mechanical contracting to New York. With over 17 years of hands-on HVAC industry experience spanning every aspect of the business—from field installation to strategic operations—Dennis has grown Denair from a one-man operation into a $2M+ revenue company recognized by Inc. 5000 as one of America's fastest-growing businesses. His leadership drives Denair's commitment to honest, value-engineered solutions including Yaskawa VFD integration for commercial and residential HVAC systems throughout NYC and the surrounding metropolitan area.
Application Engineer
Ramil is Denair HVAC's Application Engineer, specializing in designing and supporting HVAC systems—including Yaskawa VFD integration—tailored to each building's unique performance and efficiency requirements. He leads equipment selection, technical planning, and application engineering to ensure every VFD installation delivers long-lasting reliability, measurable energy savings, and full compliance with New York City's increasingly strict building and energy codes, including LL97 mandates. Ramil's technical depth ensures that every Yaskawa drive is correctly specified, integrated, and commissioned for optimal HVAC motor control performance.
Service Manager
Thomas leads Denair HVAC's service operations, overseeing all aspects of VFD and HVAC service delivery across the New York Metro Area. He is responsible for ensuring fast technician response times, efficient scheduling, and consistent quality on every service call—from routine Yaskawa drive maintenance to urgent 24/7 emergency repairs. Thomas coordinates directly with building managers, general contractors, and field technicians to minimize system downtime, protect tenant comfort, and ensure every client receives a seamless service experience from the initial call through to final resolution.
Lead Estimator
Farrukh has been a cornerstone of Denair HVAC since 2010, serving as Lead Estimator for all commercial and residential HVAC projects, including complex Yaskawa VFD integration scopes. He is responsible for preparing comprehensive, accurate bid proposals in a timely manner—tracking opportunities with vendors, subcontractors, and clients throughout New York. Farrukh's value engineering expertise has helped Denair clients save up to 35% on HVAC budgets, and his individual approach to every bid—providing detailed scope breakdowns, alternates, and revisions—gives clients full transparency and confidence in every proposal.
The three main types of Variable Frequency Drives are Voltage Source Inverter (VSI), Current Source Inverter (CSI), and PWM (Pulse Width Modulation) drives. VSI drives—including most Yaskawa models used in HVAC—are the most common, offering precise motor speed control for fans, pumps, and compressors. PWM technology is standard in modern HVAC applications for its efficiency and smooth torque output.
Our application engineers are ready to answer your questions and provide a free project assessment.
Denair HVAC delivers Yaskawa VFD solutions across the New York Metro Area, serving commercial and residential clients throughout the five boroughs and beyond.
11+ Regions
Service Area
24/7 Available
Emergency Response
400+ Projects
Projects Completed
Reach out to confirm VFD project coverage in your borough or county and get a free assessment.
Recognized as one of America's fastest-growing and most successful companies.
All technicians hold OSHA 40-hour safety certification for commercial job sites.
Trained and certified by major HVAC manufacturers including Yaskawa.
Fill out the form below and a Denair HVAC application engineer will reach out to schedule your free site assessment and provide a fixed-price proposal for your Yaskawa VFD project.
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