Energy Management & Automation
Smart building controls and automation solutions designed to significantly reduce energy consumption and operating costs while improving occupant comfort across Manhattan commercial properties.
Manhattan's high-density commercial towers and mixed-use buildings demand intelligent, responsive controls. Denair HVAC delivers end-to-end Building Automation System services — integrating smart controls, energy management, and HVAC automation to cut operating costs, meet NYC's Local Law 97 mandates, and keep every floor comfortable year-round.
Comprehensive BAS solutions for Manhattan's commercial, residential, and mission-critical facilities — from installation to ongoing optimization.
Smart building controls and automation solutions designed to significantly reduce energy consumption and operating costs while improving occupant comfort across Manhattan commercial properties.
Full integration of HVAC control systems and Building Management Systems into a unified platform, enabling centralized monitoring and precise climate management for every zone.
Expert guidance through NYC's Local Law 97 sustainability mandates, helping Manhattan building owners implement automation upgrades that reduce carbon emissions and avoid costly penalties.
Targeted retrofits and system tune-ups that modernize outdated BAS and HVAC equipment, optimizing performance and ensuring compliance without requiring complete system replacement.
Proactive BAS and HVAC maintenance plans that maximize system efficiency, extend equipment lifespan, and prevent unexpected failures — with free maintenance included for up to 18 months on new installations.
Round-the-clock emergency BAS and HVAC repair service with certified technicians responding typically within 4 hours, minimizing operational disruption for Manhattan's businesses and residents.
Our engineers conduct a thorough on-site survey of your Manhattan building — evaluating existing HVAC infrastructure, control systems, energy usage patterns, and any LL97 compliance gaps to build an accurate project baseline.
See how Denair HVAC has helped Manhattan building owners cut costs and achieve automation goals.
"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."
"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"
"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."
"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."
"Denair is the most dependable HVAC service company in New York!"
"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 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"
"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."
"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!"
"Crew was respectful, fast, and left our place spotless. Five stars."
"excellent work and quality"
"Denair is professional and courteous."
"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 was able to upgrade my cooling towers through the help of Denair and I did love their Service rendered, Wonderful Experience."
"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"
"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."
"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."
"Denair is the most dependable HVAC service company in New York!"
"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 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"
"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."
"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!"
"Crew was respectful, fast, and left our place spotless. Five stars."
"excellent work and quality"
"Denair is professional and courteous."
"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 was able to upgrade my cooling towers through the help of Denair and I did love their Service rendered, Wonderful Experience."
"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"
"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."
"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."
"Denair is the most dependable HVAC service company in New York!"
"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 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"
"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."
"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!"
"Crew was respectful, fast, and left our place spotless. Five stars."
"excellent work and quality"
"Denair is professional and courteous."
"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!"
Manhattan buildings deserve a BAS partner with the expertise, responsiveness, and technical depth to deliver lasting results.
Deep knowledge of NYC's Local Law 97 ensures your Manhattan building stays compliant and avoids penalties.
Our proven approach optimizes every BAS proposal by up to 35%, consistently delivering lower costs than competitors across Manhattan and the NYC metro area.
Certified technicians are on call around the clock, typically arriving within 4 hours to protect your building's critical operations any day of the year.
Founded in 2007 and recognized by Inc. 5000, Denair brings nearly two decades of New York HVAC and building automation expertise to every project.
Experienced professionals dedicated to Manhattan's building automation needs.
Founder & CEO
Dennis founded Denair HVAC in March 2007 after more than seven years working in the HVAC service industry — starting with just one man and a beat-up used truck. Over 19 years, he has built the company into a $2M+ revenue business recognized by Inc. 5000 as one of America's fastest-growing companies. His deep expertise spans every aspect of commercial HVAC and building automation, from system design and value engineering to project execution across Manhattan's most demanding commercial environments. Dennis leads Denair's strategic vision with a relentless focus on honesty, client satisfaction, and delivering measurable cost savings on every project.
Application Engineer
Ramil is Denair HVAC's Application Engineer, responsible for designing and supporting building automation and HVAC systems tailored to each property's unique performance, efficiency, and compliance requirements. He leads equipment selection, technical planning, and BAS application support — ensuring every system delivers long-term reliability, measurable energy savings, and full compliance with NYC building codes including Local Law 97. His engineering expertise is particularly valuable for Manhattan's diverse building stock, from pre-war residential co-ops to modern high-rise commercial towers requiring sophisticated automation solutions.
Service Manager
Thomas leads Denair HVAC's service operations team, overseeing technician dispatch, scheduling, and quality assurance for all building automation system and HVAC service calls across Manhattan and the greater NYC metro area. He ensures fast response times — typically within four hours for emergency calls — and consistent service quality on every visit. Thomas coordinates closely with property managers and building engineers to minimize downtime, maintain system reliability, and deliver a smooth, professional service experience from initial call to final resolution on every project.
Lead Estimator
Farrukh has been a cornerstone of Denair HVAC's operations since 2010, serving as Lead Estimator with responsibility for bid proposal preparation, scope breakdowns, and vendor and subcontractor coordination. His expertise in value engineering for BAS and HVAC projects across NYC has been instrumental in helping clients save significantly — contributing to over $186,000 in savings on commercial HVAC and building automation installations in recent months alone. Farrukh provides a dedicated, individual approach to every bid, delivering detailed alternates and revisions that ensure clients receive the most cost-effective solution for their Manhattan projects.
A Building Automation System (BAS) is a centralized platform that controls and monitors HVAC, lighting, and other building systems from a single interface. For Manhattan properties, this means measurably lower energy bills, precise climate control across every zone, and real-time visibility into system performance — all critical for dense high-rise environments where energy waste is costly.
Speak with a Denair HVAC expert for a free consultation tailored to your Manhattan building.
Denair HVAC provides Building Automation System services across Manhattan and the broader NYC metro area.
11 Regions
Service Area
Within 4 Hours
Emergency Response
4.7★ Rated
Customer Rating
Contact us to confirm coverage and schedule a free on-site assessment for your property.
Named one of America's fastest-growing companies.
Full OSHA 40-hour safety certification for all field operations.
Registered HVAC and Mechanical Contractor in New York.
Fill out the form below and a Denair HVAC specialist will reach out to schedule your complimentary on-site survey, discuss your BAS goals, and provide a detailed, value-engineered proposal — typically within 24 hours.
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