RTU Installation
Turnkey packaged rooftop unit installation with full project management, in-shop ductwork fabrication, and commissioning—delivering systems on time and within budget for Queens buildings of any size.
Queens buildings face relentless summer humidity and winter freeze cycles that push rooftop HVAC systems to their limits. Denair HVAC delivers expert packaged rooftop unit installation, repair, and maintenance across Queens—backed by certified technicians, fixed-price proposals, and up to 10 years of warranty coverage. Keep your building comfortable and code-compliant year-round.
Comprehensive RTU solutions for Queens commercial and residential buildings—from new installations to emergency repairs.
Turnkey packaged rooftop unit installation with full project management, in-shop ductwork fabrication, and commissioning—delivering systems on time and within budget for Queens buildings of any size.
Licensed technicians diagnose and repair all major RTU brands. Same-day service available within 4 hours, with 24/7 emergency coverage to minimize operational disruption for Queens businesses.
Customized RTU maintenance plans that extend equipment lifespan, reduce energy costs, and prevent unexpected breakdowns. Free preventive maintenance included for up to 18 months on all new installations.
Modernize aging rooftop units with targeted retrofits and expert tuning to improve performance, meet current NYC energy standards, and avoid the cost of full system replacement.
Smart controls and automation integrated with your RTU system to significantly cut energy costs—helping Queens property owners meet Local Law 97 sustainability requirements and reduce utility bills.
Certified air testing and balancing services performed after RTU installation or major repair, with detailed reports to confirm your system operates at peak performance and meets code compliance.
A dedicated estimator visits your Queens property to assess existing rooftop conditions, structural requirements, and equipment compatibility—accounting for local building codes and NYC DOB regulations before any work begins.
See how Queens and NYC property managers have saved money and improved comfort with Denair HVAC.
"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"
"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."
"Denair is the most dependable HVAC service company in New York!"
"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."
"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"
"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..."
"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!"
"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."
"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."
"These guys are the best. Installed my central air condition. They are quick, thorough and honest! I definitely recommend them."
"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"
"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."
"Denair is the most dependable HVAC service company in New York!"
"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."
"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"
"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..."
"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!"
"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."
"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."
"These guys are the best. Installed my central air condition. They are quick, thorough and honest! I definitely recommend them."
"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"
"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."
"Denair is the most dependable HVAC service company in New York!"
"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."
"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"
"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..."
"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!"
"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."
"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."
"These guys are the best. Installed my central air condition. They are quick, thorough and honest! I definitely recommend them."
Queens property owners and managers choose Denair HVAC for our unmatched combination of certified expertise, transparent pricing, and genuine local commitment.
All unintended costs are covered at our own expense—no surprise invoices on Queens RTU projects, ever.
28 manufacturer-trained, OSHA-certified technicians handle every Queens rooftop unit installation and repair to the highest standard.
24/7 emergency RTU repair coverage across Queens, typically on-site within 4 hours to restore your building's climate control fast.
Our value engineering approach routinely saves Queens clients up to 35% on RTU projects without compromising system performance or reliability.
Experienced professionals dedicated to superior rooftop HVAC outcomes across Queens.
Founder & CEO
Dennis founded Denair HVAC in March 2007 with a single truck and a vision to bring honest, affordable HVAC service to New York. With over 17 years of hands-on industry experience spanning every facet of commercial and residential HVAC, 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 deep expertise in packaged rooftop unit systems, combined with a relentless focus on value engineering and client satisfaction, ensures Queens property owners receive solutions that are both high-performing and cost-effective. Dennis leads the company's strategic vision with a commitment to transparency and results.
Service Manager
Thomas leads Denair HVAC's service operations across the New York metro area, including all packaged rooftop unit service calls throughout Queens. He is responsible for ensuring fast technician response times, efficient scheduling, and consistent service quality from the first call to job completion. Thomas coordinates directly with field technicians and clients to reduce equipment downtime and deliver a seamless experience. His operational discipline means Queens property managers can count on clear communication, reliable scheduling, and RTU systems that stay running through the borough's demanding seasonal extremes—from sweltering summer heat waves to frigid winter conditions.
Application Engineer
Ramil designs and specifies HVAC systems—including packaged rooftop units—tailored to each Queens building's unique performance, efficiency, and compliance requirements. He oversees equipment selection, technical planning, and application engineering support to ensure every RTU installation delivers long-lasting reliability and measurable energy savings. Ramil's expertise is critical in navigating NYC's increasingly stringent building energy codes, including Local Law 97 mandates that directly impact Queens commercial property owners. His code-compliant engineering approach ensures clients receive RTU systems that not only perform optimally but also avoid costly penalties from municipal sustainability requirements.
Lead Estimator
Farrukh has been a cornerstone of Denair HVAC's estimating department since 2010, bringing deep expertise in bid proposal preparation for packaged rooftop unit projects across Queens and the wider NYC metro area. He is responsible for delivering comprehensive, timely bids with detailed scope breakdowns, alternates, and revisions that give clients total cost clarity before any work begins. Farrukh's value engineering analysis has helped Queens building owners and property managers save substantially on RTU installations—contributing to the firm's track record of $76M in project bids and over 400 completed HVAC projects. His individual approach ensures every estimate is tailored to the specific building and budget.
RTU replacement in Queens typically ranges from $8,000 to $40,000 or more, depending on unit tonnage, brand, installation complexity, and rooftop access conditions. NYC buildings often incur additional costs for crane lifts, permits, and structural assessments. Denair HVAC provides fixed-price proposals with no hidden charges, and our value engineering approach regularly saves clients up to 35% compared to standard contractor pricing.
Speak with a Denair HVAC expert for a free, no-obligation consultation tailored to your Queens property.
Denair HVAC provides packaged rooftop unit services across Queens and the entire New York metro area.
11 Regions
Service Area
24/7 Emergency
Availability
4.7★ Rated
Customer Rating
Contact us to confirm coverage and schedule your free RTU assessment today.
Recognized as one of America's fastest-growing companies.
All technicians hold OSHA 40-hour safety certification.
Licensed HVAC contractor registered with New York State.
Fill out the form below and a Denair HVAC specialist will respond promptly with a no-obligation consultation. Expect fixed pricing, honest scope breakdowns, and a solution engineered to fit your building and budget.
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