HVAC Installation
Turnkey commercial HVAC installation with full project management, covering equipment, ductwork, piping, controls, and BMS commissioning—engineered to save clients up to 35% through value engineering.
Manhattan's dense high-rises, mixed-use towers, and demanding commercial spaces require precision climate control that never falters. Denair HVAC delivers expert temperature control system installation tailored to New York's unique building stock—from pre-war co-ops to modern office floors—combining value-engineered solutions, certified technicians, and up to 10-year warranties for lasting comfort and efficiency.
Comprehensive installation solutions for every building type, from Manhattan high-rises to multi-family residential properties.
Turnkey commercial HVAC installation with full project management, covering equipment, ductwork, piping, controls, and BMS commissioning—engineered to save clients up to 35% through value engineering.
Advanced building management and HVAC control system installation that centralizes temperature regulation, improves efficiency, and ensures code-compliant operations across all floors and zones.
Variable Refrigerant Flow and split system installations ideal for Manhattan buildings with rooftop access or balcony space, delivering zoned comfort and superior energy performance.
Smart energy management and automation solutions that significantly reduce energy costs and environmental impact while keeping building temperatures precisely controlled around the clock.
Targeted retrofits and expert system tune-ups to modernize outdated temperature control equipment, optimizing performance and meeting current NYC energy standards without full replacement.
Expert guidance through NYC's Local Law 97 sustainability mandates, ensuring your temperature control systems meet carbon emission requirements and avoid costly municipal penalties.
Our engineers conduct a thorough on-site assessment of your Manhattan property—evaluating floor plans, existing infrastructure, load requirements, and NYC building code compliance needs to establish a precise project foundation.
See how Denair HVAC has delivered reliable temperature control installations across Manhattan and the NYC metro area.
"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"
"I was able to upgrade my cooling towers through the help of Denair and I did love their Service rendered, Wonderful Experience."
"Denair is the most dependable HVAC service company in New York!"
"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..."
"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"
"Impeccable install. You can tell they're pros the moment they walk in."
"These guys are the best. Installed my central air condition. They are quick, thorough and honest! I definitely recommend them."
"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."
"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!"
"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!"
"Really great to work with, awesome staff, happy to work with them anytime again in the future! Highly recommend."
"excellent work and quality"
"Amazing HVAC vendor who is doing multiple accounts for my company."
"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"
"I was able to upgrade my cooling towers through the help of Denair and I did love their Service rendered, Wonderful Experience."
"Denair is the most dependable HVAC service company in New York!"
"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..."
"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"
"Impeccable install. You can tell they're pros the moment they walk in."
"These guys are the best. Installed my central air condition. They are quick, thorough and honest! I definitely recommend them."
"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."
"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!"
"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!"
"Really great to work with, awesome staff, happy to work with them anytime again in the future! Highly recommend."
"excellent work and quality"
"Amazing HVAC vendor who is doing multiple accounts for my company."
"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"
"I was able to upgrade my cooling towers through the help of Denair and I did love their Service rendered, Wonderful Experience."
"Denair is the most dependable HVAC service company in New York!"
"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..."
"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"
"Impeccable install. You can tell they're pros the moment they walk in."
"These guys are the best. Installed my central air condition. They are quick, thorough and honest! I definitely recommend them."
"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."
"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!"
"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!"
"Really great to work with, awesome staff, happy to work with them anytime again in the future! Highly recommend."
"excellent work and quality"
"Amazing HVAC vendor who is doing multiple accounts for my company."
Manhattan building owners and property managers trust Denair HVAC for precision, savings, and reliability on every temperature control installation.
We optimize every Manhattan installation proposal, consistently saving clients up to 35% on HVAC budgets through proven value engineering.
28 OSHA-certified technicians, each with 5+ years of experience, trained and certified by major manufacturers for code-compliant NYC installations.
80% of projects completed ahead of schedule—with a Terms Guarantee penalizing delays at 0.1% of contract value per day, protecting Manhattan clients.
Up to 10-year manufacturer's warranty on all new equipment, plus 18 months of free preventive maintenance included with every new installation.
Experienced professionals dedicated to delivering exceptional temperature control solutions across Manhattan.
Founder & CEO
Dennis founded Denair HVAC in March 2007 with a single used truck and a vision to bring honest, affordable HVAC solutions to New York. With over 17 years of hands-on industry experience, he has grown the company from a one-man operation to a $2M+ revenue enterprise recognized by Inc. 5000 as one of America's fastest-growing companies. Dennis leads Denair's strategic direction, championing value engineering and transparent operations that have made the company Manhattan's go-to temperature control installation partner. His leadership has driven over 400 completed projects and $76M in project bids across New York City's diverse building landscape.
Application Engineer
Ramil is Denair HVAC's Application Engineer, specializing in designing and supporting temperature control systems tailored precisely to each Manhattan building's unique performance and efficiency requirements. He oversees equipment selection, technical system planning, and application support—ensuring every installation delivers long-lasting reliability, measurable energy savings, and full NYC code compliance. Ramil's expertise is especially critical for Manhattan's complex building stock, where he navigates pre-war infrastructure, high-density zoning, and Local Law 97 sustainability requirements to engineer solutions that perform flawlessly from the first day of operation.
Service Manager
Thomas leads Denair HVAC's service operations across Manhattan and the wider NYC metro area, ensuring rapid response times, efficient crew scheduling, and consistently high service quality on every temperature control installation and repair call. He coordinates technicians and client communication to minimize system downtime and deliver a seamless experience from project kickoff through final commissioning. Thomas's operational discipline is a key reason Denair completes 80% of projects ahead of schedule, and his team routinely responds to service calls within four hours—keeping Manhattan buildings comfortable in every season.
Lead Estimator
Farrukh has been a cornerstone of Denair HVAC since 2010, bringing unmatched precision to bid preparation and project cost analysis for temperature control installations across Manhattan and New York City. As Lead Estimator, he is responsible for comprehensive, timely bid proposals that consistently deliver competitive pricing through value engineering—saving clients thousands on equipment and installation costs. Farrukh tracks every opportunity with vendors, subcontractors, and clients, providing detailed scope breakdowns, alternates, and revisions that give property managers and general contractors full confidence in Denair's proposals.
Modern buildings use centralized HVAC systems with thermostats, Building Management Systems (BMS), or smart controls to regulate temperature zone by zone. In Manhattan's high-rise and commercial buildings, VRF systems, rooftop units, and automated BMS platforms are common. A qualified HVAC contractor assesses your building's layout, load requirements, and NYC energy codes to design the right solution for consistent, efficient comfort throughout every floor.
Talk to a Denair HVAC expert for a free consultation and project estimate.
Denair HVAC installs and services temperature control systems across Manhattan and all surrounding New York City boroughs and counties.
11 Regions
Service Area
Within 4 Hours
Emergency Response
400+
Projects Completed
Contact us to confirm service availability and get a free project estimate for your area.
Named one of America's fastest-growing companies.
All technicians hold full OSHA safety compliance.
Licensed HVAC contractor compliant with NYC codes.
Fill out the form below and a Denair HVAC specialist will reach out to discuss your temperature control system needs, provide a detailed scope breakdown, and deliver a value-engineered proposal—at 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