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.
"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."
"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."
"Amazing HVAC vendor who is doing multiple accounts for my company."
"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."
"excellent work and quality"
"Denair is the most dependable HVAC service company in New York!"
"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."
"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."
"Amazing HVAC vendor who is doing multiple accounts for my company."
"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."
"excellent work and quality"
"Denair is the most dependable HVAC service company in New York!"
"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."
"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."
"Amazing HVAC vendor who is doing multiple accounts for my company."
"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."
"excellent work and quality"
"Denair is the most dependable HVAC service company in New York!"
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 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.
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.
For immediate assistance, feel free to give us a direct call at 718-791-5074.