Cooling System Installation
Turnkey precision cooling installation with end-to-end project management—covering equipment, ductwork, controls, and commissioning—engineered to save clients up to 35% through value engineering.
Long Island City's dense mix of commercial high-rises, converted loft spaces, and residential towers demands cooling systems that perform flawlessly year-round. Denair HVAC delivers precision cooling solutions engineered for NYC's demanding climate—from expert installations and 24/7 emergency repairs to preventive maintenance plans that keep your space comfortable and your energy bills under control.
Comprehensive cooling solutions tailored for Long Island City's commercial, residential, and mixed-use properties of every size.
Turnkey precision cooling installation with end-to-end project management—covering equipment, ductwork, controls, and commissioning—engineered to save clients up to 35% through value engineering.
Around-the-clock emergency cooling repairs with certified technicians typically on-site within 4 hours, handling all major brands from 0.5 to 100 tons of cooling capacity.
Proactive maintenance plans that maximize cooling efficiency, extend equipment lifespan, reduce energy costs, and include free preventive maintenance for up to 18 months on all new installations.
Variable Refrigerant Flow and split system installations ideal for Long Island City buildings with rooftop or balcony access, delivering flexible, energy-efficient zoned cooling.
Targeted retrofits and system tune-ups that modernize outdated cooling equipment, optimize performance, and meet current energy standards without requiring full system replacement.
Smart cooling controls and automation solutions that significantly reduce energy consumption and operational costs—ideal for LIC's growing roster of energy-conscious commercial tenants.
Long Island City's booming development—from waterfront luxury residences to creative office conversions near the Queensboro Bridge—requires cooling systems engineered for precision, not just adequacy. Denair HVAC brings over 19 years of NYC mechanical expertise, value-engineered proposals, and a team of 28 certified technicians to every project. Whether you manage a multi-family building, a retail flagship, or a medical office, our fixed-price proposals and 10-year extended warranty options ensure you get maximum comfort with zero budget surprises.
See how Long Island City and NYC businesses achieved reliable comfort and significant savings with Denair HVAC.
"I was able to upgrade my cooling towers through the help of Denair and I did love their Service rendered, Wonderful Experience."
"I am very pleased with the service and professionalism we receive from all the techs and staff at Denair."
"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."
"Really great to work with, awesome staff, happy to work with them anytime again in the future! Highly recommend."
"Crew was respectful, fast, and left our place spotless. Five stars."
"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!"
"Impeccable install. You can tell they're pros the moment they walk in."
"Denair is the most dependable HVAC service company in New York!"
"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."
"excellent work and quality"
"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"
"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 was able to upgrade my cooling towers through the help of Denair and I did love their Service rendered, Wonderful Experience."
"I am very pleased with the service and professionalism we receive from all the techs and staff at Denair."
"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."
"Really great to work with, awesome staff, happy to work with them anytime again in the future! Highly recommend."
"Crew was respectful, fast, and left our place spotless. Five stars."
"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!"
"Impeccable install. You can tell they're pros the moment they walk in."
"Denair is the most dependable HVAC service company in New York!"
"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."
"excellent work and quality"
"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"
"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 was able to upgrade my cooling towers through the help of Denair and I did love their Service rendered, Wonderful Experience."
"I am very pleased with the service and professionalism we receive from all the techs and staff at Denair."
"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."
"Really great to work with, awesome staff, happy to work with them anytime again in the future! Highly recommend."
"Crew was respectful, fast, and left our place spotless. Five stars."
"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!"
"Impeccable install. You can tell they're pros the moment they walk in."
"Denair is the most dependable HVAC service company in New York!"
"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."
"excellent work and quality"
"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"
"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."
Long Island City businesses and property managers choose Denair HVAC for one reason: we consistently deliver more value, more reliability, and less hassle than the competition.
28 technicians, each with 5+ years of experience, trained and certified by major manufacturers—meeting all NYC mechanical codes.
Our estimators optimize every proposal, saving Long Island City clients up to 35% on cooling projects without compromising quality.
Cooling failures don't wait for business hours—our technicians respond across Queens and LIC, typically within 4 hours.
Fixed-price proposals mean no surprise costs. All unintended expenses are covered at our own expense—protecting your LIC project budget.
Experienced professionals committed to precision cooling excellence across Long Island City.
Founder & CEO
Dennis founded Denair HVAC in March 2007 with a single used truck and a commitment to honest, high-quality mechanical service across New York City. With over 17 years of hands-on HVAC expertise spanning every aspect of the business—from field installation to strategic operations—he built Denair from the ground up into a $2 million+ revenue company recognized by the Inc. 5000 as one of America's fastest-growing enterprises. Under his leadership, Denair now serves Long Island City and the broader NYC metro area with a team of 28 certified technicians, delivering precision cooling solutions to commercial, residential, and government clients alike.
Service Manager
Thomas leads Denair HVAC's service operations across the New York metro area, including Long Island City's fast-growing commercial and residential market. He is responsible for ensuring fast technician response times, efficient scheduling, and consistent service quality on every cooling job. Thomas coordinates the field team and manages customer communication end-to-end, keeping systems running reliably and reducing client downtime. His disciplined approach to crew coordination and quality oversight is a key reason Denair completes 80% of its projects ahead of schedule—a standard that LIC property managers and facility teams have come to rely on.
Application Engineer
Ramil designs and supports precision cooling systems tailored to the unique performance and efficiency requirements of each building in Long Island City and across the NYC metro area. He oversees equipment selection, technical system planning, and application engineering support—ensuring every cooling solution is code-compliant, energy-efficient, and built for long-term reliability. Ramil's expertise is particularly valuable for LIC's diverse building stock, from converted industrial lofts to modern mixed-use towers, where standard solutions rarely apply. His detailed technical planning helps clients capture maximum energy savings while avoiding costly mid-project design changes.
Lead Estimator
Farrukh has been with Denair HVAC since 2010 and is the driving force behind the company's industry-leading value engineering process. As Lead Estimator, he is responsible for preparing comprehensive, accurate bid proposals for precision cooling projects of every scale—from a single-unit LIC retail space to multi-million-dollar commercial installations. Farrukh tracks opportunities with vendors, subcontractors, and clients meticulously, providing detailed scope breakdowns, alternates, and revisions that consistently help clients save 20–35% on cooling budgets. His deep market knowledge of NYC mechanical costs is a key competitive advantage for Denair's Long Island City clients.
Denair HVAC installs a full range of precision cooling systems in Long Island City, including central commercial HVAC, VRF and split systems, rooftop units (RTUs), Fujitsu STHP heat pumps, and Ephoca AIO self-contained systems. We select equipment based on your building type, layout, and budget, ensuring optimal performance for LIC's mix of residential towers, commercial offices, and mixed-use properties.
Speak directly with a Denair HVAC cooling specialist for a no-obligation consultation.
Denair HVAC delivers precision cooling services across Long Island City and the entire New York metro area.
NYC & 11 Regions
Service Area
24/7 Response
Emergency Availability
400+ Projects
Projects Completed
Contact us to confirm coverage and schedule your precision cooling service in Long Island City.
Recognized as one of America's fastest-growing companies.
All technicians OSHA-certified for safe, compliant job sites.
Fully licensed and registered HVAC contractor in New York.
Fill out the form below and a Denair HVAC specialist will reach out promptly to discuss your Long Island City cooling needs, project scope, and budget—with no obligation.
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