Queens' diverse multifamily housing stock—from pre-war co-ops in Forest Hills to newer high-rises in Long Island City—demands HVAC expertise built for scale and compliance. Denair HVAC delivers turnkey installation, preventive maintenance, emergency repairs, and LL97-compliant upgrades for multifamily properties across Queens, with 28 certified technicians ready to keep every unit comfortable year-round.
Comprehensive HVAC solutions for multifamily residential buildings in Queens—from installation and upgrades to compliance and 24/7 emergency support.
Turnkey HVAC installation for multifamily buildings with end-to-end project management. Covers equipment, ductwork, piping, controls, and commissioning—handling projects from $10,000 to $5,000,000 with value engineering savings up to 35%.
Proactive, customized maintenance plans that extend system lifespan, reduce energy costs, and prevent unexpected breakdowns across all units. Free preventive maintenance included for up to 18 months on all new installations.
Around-the-clock emergency HVAC repair by certified technicians, typically responding within 4 hours. Equipped to service all major brands from ½ to 100 tons of cooling capacity—minimizing tenant disruption.
Modernize aging multifamily HVAC equipment with targeted retrofits and expert tuning. Optimize performance, improve tenant comfort, and meet current NYC energy standards without requiring full system replacement.
Navigate NYC's Local Law 97 carbon emissions mandates with confidence. Denair guides multifamily property owners through compliance requirements, equipment upgrades, and sustainability strategies to avoid penalties.
Variable Refrigerant Flow and split system installations ideal for multifamily buildings with rooftop or balcony access. Delivers zoned comfort control and energy efficiency across individual units and common areas.
Managing HVAC for a Queens multifamily property means balancing tenant comfort, NYC building codes, LL97 compliance deadlines, and tight capital budgets—all at once. Denair HVAC specializes in exactly this. With over 19 years serving NYC's five boroughs, 28 certified technicians, and a value engineering process that has saved clients over $186,000 in the last six months alone, we deliver reliable, affordable, code-compliant HVAC solutions sized for buildings of any scale.
See how Queens and NYC multifamily property owners have saved money and improved comfort with Denair HVAC.
"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."
"Denair is professional and courteous."
"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."
"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."
"Denair is professional and courteous."
"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."
"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."
"Denair is professional and courteous."
"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."
"Denair is the most dependable HVAC service company in New York!"
Here's what sets Denair HVAC apart as Queens' preferred multifamily HVAC contractor.
Save up to 35% on your Queens multifamily HVAC budget through our proven value engineering process—without compromising system quality.
28 OSHA-certified technicians, each with a minimum of 5 years of HVAC experience, trained and certified by major manufacturers.
Deep expertise in NYC's Local Law 97 and building codes ensures your Queens multifamily property stays compliant and penalty-free.
24/7 emergency repairs with typical response within 4 hours—keeping your Queens tenants comfortable in any season, any situation.
Experienced HVAC professionals dedicated to Queens multifamily properties.
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.
Denair HVAC offers a full range of multifamily HVAC services in Queens, including new system installation, preventive maintenance plans, 24/7 emergency repairs, system upgrades, VRF and split system installation, LL97 compliance consulting, energy management solutions, and complete project management. We handle projects from $10,000 to $5,000,000 and serve buildings of all sizes throughout Queens and the NYC metro area.
Speak directly with a Denair HVAC expert for a free, no-obligation consultation tailored to your multifamily property.
Denair HVAC serves multifamily properties across Queens and all five NYC boroughs, plus surrounding metro counties.
11 Regions
Service Area
24/7 Service
Emergency Availability
400+ Projects
Projects Completed
Contact us to confirm service availability for your multifamily property address.
Recognized as one of America's fastest-growing companies.
All technicians hold OSHA 40-hour safety certification.
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 multifamily building's HVAC needs, provide a detailed scope breakdown, and deliver a competitive, value-engineered proposal.
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.