Energy Management & Automation
Intelligent smart controls and automated building systems that significantly reduce energy costs and environmental impact—optimizing performance across all connected mechanical systems in your facility.
Long Island City's fast-growing commercial real estate landscape demands smarter, more efficient buildings. Denair HVAC delivers expert building automation systems integration—connecting your HVAC controls, energy management, and facility systems into one intelligent platform that slashes operating costs, ensures code compliance, and keeps your building performing at peak efficiency year-round.
Comprehensive BAS and controls solutions tailored for commercial and multi-family buildings across Long Island City and the NYC metro area.
Intelligent smart controls and automated building systems that significantly reduce energy costs and environmental impact—optimizing performance across all connected mechanical systems in your facility.
Seamless integration of HVAC equipment with centralized building control systems, enabling unified monitoring, scheduling, and real-time diagnostics for commercial and mission-critical environments.
Turnkey building automation system installation with end-to-end project management—covering equipment selection, controls wiring, programming, commissioning, and staff training for buildings of any size.
Expert guidance through NYC's Local Law 97 sustainability mandates, using automation and controls upgrades to reduce carbon output and avoid costly penalties for building owners and property managers.
Targeted retrofits and system tune-ups that modernize outdated controls and equipment, integrating legacy systems into modern BAS platforms without full replacement—maximizing uptime and compliance.
Proactive BAS and controls maintenance plans that extend system lifespan, prevent unexpected failures, and keep automation logic running accurately—with free maintenance for up to 18 months on new installations.
Long Island City's booming mix of commercial towers, mixed-use developments, and converted industrial spaces creates unique demands on building systems. Denair HVAC designs and installs building automation solutions that unify HVAC, lighting, and energy management into one intelligent platform—reducing energy consumption by up to 58%, ensuring LL97 compliance, and delivering the operational visibility that property managers and building owners need. With 19+ years serving the NYC metro area and over 400 completed projects, we bring certified expertise and fixed-price guarantees to every BAS engagement.
See how Long Island City and NYC-area building owners achieved real energy savings and operational improvements with Denair HVAC.
"I am very pleased with the service and professionalism we receive from all the techs and staff at Denair."
"Impeccable install. You can tell they're pros the moment they walk in."
"I was able to upgrade my cooling towers through the help of Denair and I did love their Service rendered, Wonderful Experience."
"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"
"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."
"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."
"Really great to work with, awesome staff, happy to work with them anytime again in the future! Highly recommend."
"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"
"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!"
"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..."
"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!"
"Denair is professional and courteous."
"I am very pleased with the service and professionalism we receive from all the techs and staff at Denair."
"Impeccable install. You can tell they're pros the moment they walk in."
"I was able to upgrade my cooling towers through the help of Denair and I did love their Service rendered, Wonderful Experience."
"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"
"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."
"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."
"Really great to work with, awesome staff, happy to work with them anytime again in the future! Highly recommend."
"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"
"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!"
"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..."
"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!"
"Denair is professional and courteous."
"I am very pleased with the service and professionalism we receive from all the techs and staff at Denair."
"Impeccable install. You can tell they're pros the moment they walk in."
"I was able to upgrade my cooling towers through the help of Denair and I did love their Service rendered, Wonderful Experience."
"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"
"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."
"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."
"Really great to work with, awesome staff, happy to work with them anytime again in the future! Highly recommend."
"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"
"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!"
"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..."
"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!"
"Denair is professional and courteous."
We combine deep BAS expertise with the pricing transparency and local market knowledge that Long Island City building owners and property managers rely on.
All unintended costs are compensated at our expense—no surprise invoices, ever.
We optimize every BAS proposal, consistently saving clients up to 35% on project budgets.
19+ years serving Long Island City, Queens, and the five boroughs—fully versed in LL97 compliance.
Round-the-clock emergency repair services ensure your building automation systems never leave you stranded.
Experienced professionals dedicated to delivering exceptional building automation results.
Founder & CEO
Dennis founded Denair HVAC in March 2007 with a single technician and a used truck, driven by a mission to bring affordable, high-quality mechanical contracting to the New York Metro Area. With over 17 years of hands-on experience spanning every aspect of the HVAC and building automation industry, he led the company from zero to over $2 million in annual revenue within five years. Under his strategic leadership, Denair was recognized by Inc. 5000 as one of America's fastest-growing companies in 2019. Dennis personally oversees the company's commitment to value engineering, fixed-price integrity, and delivering intelligent building automation solutions to Long Island City and the greater NYC commercial market.
Application Engineer
Ramil brings deep technical expertise to every building automation and HVAC systems project at Denair. He designs and supports BAS and HVAC solutions tailored to each building's specific performance, efficiency, and compliance requirements—a critical capability for Long Island City's diverse mix of commercial, mixed-use, and residential properties. Ramil oversees equipment selection, technical planning, and application engineering support to ensure every installed system delivers long-term reliability, measurable energy savings, and full compliance with NYC energy codes including Local Law 97. His precision-driven approach ensures each automation solution is code-compliant, cost-effective, and built to last.
Service Manager
Thomas leads Denair HVAC's service operations, ensuring fast response times, efficient technician scheduling, and consistent service quality across every building automation and HVAC project. He coordinates the field technician team and manages all customer communication to keep building systems running reliably, minimize downtime, and deliver a smooth service experience from initial call to final sign-off. Thomas's operational discipline is central to Denair's ability to offer same-day service—typically within four hours—across Long Island City, Queens, and the broader NYC metro area, keeping critical building automation and HVAC infrastructure protected in every season.
Lead Estimator
Farrukh has been a cornerstone of Denair HVAC's growth since joining in 2010. As Lead Estimator, he is responsible for preparing comprehensive, accurate bid proposals for building automation, HVAC, and mechanical projects in a timely manner—ensuring every client receives a transparent, value-engineered scope before work begins. He tracks opportunities with vendors, subcontractors, and customers, and has been instrumental in delivering proposals that consistently come in below competitor pricing. Farrukh's meticulous approach to scope breakdowns, alternates, and revisions has contributed directly to the company's track record of over $76 million in project bids across the NYC metro area.
BMS costs in Long Island City typically range from $2,500 to $10,000+ per controlled point, depending on system complexity, building size, and the number of integrated subsystems. A basic retrofit for a mid-sized commercial building may run $15,000–$50,000, while a full new-construction BAS for a large facility can exceed $200,000. Denair HVAC provides fixed-price proposals with value engineering to maximize your budget.
Speak directly with a certified BAS expert for a no-obligation consultation and free project estimate.
Denair HVAC provides building automation systems contracting across Long Island City, NYC's five boroughs, and surrounding metro counties.
11+ Areas Served
Service Coverage
400+ Projects
Projects Completed
24/7 Service
Emergency Availability
Contact us to confirm coverage and get a free building automation estimate for your location.
Recognized as one of America's fastest-growing companies.
Full OSHA 40-hour safety certification for all field operations.
Licensed Mechanical/HVAC Contractor registered in New York State.
Fill out the form below and a Denair HVAC specialist will reach out within one business day to discuss your Long Island City project requirements, schedule a site assessment, and provide a transparent, fixed-price proposal.
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