HVAC Installation
Turnkey HVAC installation for medical facilities with full project management — covering equipment, ductwork, controls, and commissioning — saving healthcare clients up to 35% through value engineering.
NYC's medical facilities demand HVAC systems that never fail — where infection control, precise temperature zoning, and air quality compliance aren't optional. Denair HVAC delivers mission-critical heating, cooling, and ventilation solutions engineered specifically for hospitals, clinics, and urgent care centers across all five boroughs and beyond.
Comprehensive HVAC solutions engineered for the unique compliance, safety, and uptime demands of NYC healthcare environments.
Turnkey HVAC installation for medical facilities with full project management — covering equipment, ductwork, controls, and commissioning — saving healthcare clients up to 35% through value engineering.
Proactive, customized maintenance plans that keep medical HVAC systems running at peak efficiency year-round, reducing unexpected failures and extending equipment lifespan in critical care environments.
Round-the-clock emergency HVAC response for medical facilities — certified technicians typically arrive within 4 hours to restore climate control and protect patients, staff, and operations.
Targeted retrofits and system tune-ups to modernize outdated medical HVAC equipment, improving performance, energy efficiency, and regulatory compliance without requiring full system replacement.
Smart building controls and automation solutions that significantly reduce energy costs and environmental impact while maintaining the precise climate conditions required in healthcare settings.
Certified air testing and balancing services performed upon HVAC installation completion, ensuring medical facility systems meet airflow standards, pressure differentials, and infection-control requirements.
Medical facilities across NYC — from Manhattan hospitals to Brooklyn urgent care centers — operate under strict air quality, pressure differential, and infection-control standards that standard commercial HVAC simply cannot meet. Denair HVAC's certified team designs, installs, and maintains systems that comply with NYC Department of Buildings codes and ASHRAE healthcare guidelines, delivering the redundancy and uptime that patient safety demands.
See how NYC medical and healthcare clients have benefited from Denair HVAC's specialized solutions.
"Denair is the most dependable HVAC service company in New York!"
"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."
"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..."
"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!"
"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"
"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."
"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."
"These guys are the best. Installed my central air condition. They are quick, thorough and honest! I definitely recommend them."
"Amazing HVAC vendor who is doing multiple accounts for my company."
"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!"
"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."
"Denair is the most dependable HVAC service company in New York!"
"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."
"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..."
"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!"
"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"
"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."
"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."
"These guys are the best. Installed my central air condition. They are quick, thorough and honest! I definitely recommend them."
"Amazing HVAC vendor who is doing multiple accounts for my company."
"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!"
"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."
"Denair is the most dependable HVAC service company in New York!"
"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."
"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..."
"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!"
"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"
"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."
"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."
"These guys are the best. Installed my central air condition. They are quick, thorough and honest! I definitely recommend them."
"Amazing HVAC vendor who is doing multiple accounts for my company."
"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!"
"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."
We combine deep technical expertise with a proven track record serving NYC's most demanding healthcare environments.
OSHA-certified, manufacturer-trained technicians who understand the strict compliance requirements of NYC healthcare facilities.
Around-the-clock emergency response with typical on-site arrival within 4 hours — critical when patient care environments cannot afford downtime.
Over 400 completed projects across all five boroughs, including work for Cure Urgent Care and Planned Parenthood healthcare clients.
Fixed proposal pricing with no surprise costs, saving NYC medical facility clients up to 35% compared to standard commercial HVAC bids.
Experienced professionals dedicated to exceptional HVAC service for NYC medical facilities.
Founder & CEO
Dennis founded Denair HVAC in March 2007 after seven years in the HVAC service industry — starting with one man and a beat-up used truck in Brooklyn. Over the next five years, he grew the company to over $2 million in annual revenue, earning recognition from Inc. 5000 as one of America's fastest-growing companies. With over 17 years of hands-on HVAC experience spanning commercial, residential, and mission-critical medical facilities across NYC, Dennis leads the company's strategic vision with a focus on quality, compliance, and client value. His leadership has driven Denair to complete over 400 projects across the New York metro area.
Service Manager
Thomas leads Denair HVAC's service operations with a sharp focus on fast response times, efficient scheduling, and consistent service quality — attributes that are especially critical in healthcare environments where HVAC downtime can directly impact patient care. He coordinates the company's team of certified technicians and manages all customer communication, ensuring that medical facility clients across NYC experience minimal disruption and maximum reliability. Thomas's operational expertise keeps systems running smoothly from the first service call to final resolution, making him a cornerstone of Denair's commitment to mission-critical uptime.
Application Engineer
Ramil designs and engineers HVAC systems tailored to each facility's specific performance, efficiency, and compliance requirements — a skill set that is invaluable in NYC's complex medical facility landscape, where airflow pressurization, filtration standards, and energy codes intersect. He oversees equipment selection, technical planning, and application support to ensure every installed system delivers long-lasting reliability, energy savings, and full code compliance. Ramil's engineering rigor ensures that Denair's medical facility clients receive systems designed from the ground up to meet healthcare-grade standards and NYC Department of Buildings requirements.
Lead Estimator
Farrukh has been a cornerstone of Denair HVAC's operations since 2010, bringing deep expertise in bid preparation and project scoping that has helped NYC medical facility clients unlock significant savings. As Lead Estimator, he is responsible for preparing comprehensive, accurate bid proposals in a timely manner — tracking opportunities with vendors, subcontractors, and clients to ensure every medical HVAC project is competitively priced and clearly scoped. His value engineering approach has contributed to client savings exceeding $186,000 on commercial HVAC projects across New York in recent months alone.
Yes, many hospitals and medical facilities integrate UV-C germicidal lights into their HVAC systems to neutralize airborne pathogens, bacteria, and mold on coils and in air streams. This is a recognized infection-control measure recommended by ASHRAE and the CDC. Denair HVAC can evaluate, specify, and install UV light systems as part of a comprehensive healthcare HVAC upgrade for your NYC facility.
Our healthcare HVAC specialists are ready to answer your questions and provide a free consultation.
Denair HVAC serves hospitals, clinics, and medical facilities across New York City and the surrounding metro region.
11+ Regions
Service Area
Within 4 Hours
Emergency Response
400+ Projects
Projects Completed
Contact us to confirm coverage and schedule a free on-site assessment for your healthcare facility.
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.
Tell us about your healthcare facility and HVAC needs. Our specialists will follow up with a tailored proposal, free estimate, and a clear scope — no surprises, no obligations.
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