MUA Installation
Full turnkey installation of makeup air units for commercial kitchens, office buildings, and multi-family properties across Manhattan, including ductwork, controls, and NYC code-compliant commissioning.
Manhattan's dense high-rises and commercial buildings demand precise ventilation balance—and makeup air units are the unsung heroes keeping indoor air safe and compliant. Denair HVAC delivers expert MUA installation, maintenance, and repair across Manhattan, ensuring your building meets NYC code requirements while optimizing energy efficiency and occupant comfort year-round.
Comprehensive MUA services for Manhattan commercial and residential buildings—from installation to emergency repair.
Full turnkey installation of makeup air units for commercial kitchens, office buildings, and multi-family properties across Manhattan, including ductwork, controls, and NYC code-compliant commissioning.
Scheduled MUA maintenance plans to maximize equipment lifespan, maintain airflow balance, and prevent costly breakdowns—with customized contracts and up to 18 months free maintenance on new installations.
24/7 emergency makeup air unit repair with same-day response—typically within 4 hours. Certified technicians arrive fully equipped to restore ventilation and comply with NYC fire suppression requirements.
Modernize aging MUA equipment with targeted retrofits and energy-efficient upgrades, improving performance and bringing systems up to current NYC energy and sustainability standards without full replacement.
Certified air testing and balancing services upon MUA installation or retrofit completion, ensuring airflow volumes meet design specifications and building code requirements with detailed certified reports.
Guidance and technical solutions to ensure your makeup air system aligns with NYC Local Law 97 sustainability mandates, reducing carbon penalties and supporting long-term building compliance.
Our engineers conduct a thorough on-site evaluation of your Manhattan building's ventilation needs, reviewing exhaust volumes, kitchen hood requirements, occupancy loads, and NYC mechanical code obligations to define the correct MUA specification.
See how Denair HVAC has delivered reliable makeup air solutions for Manhattan buildings and beyond.
"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."
"Denair is the most dependable HVAC service company in New York!"
"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 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..."
"Really great to work with, awesome staff, happy to work with them anytime again in the future! Highly recommend."
"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."
"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."
"Impeccable install. You can tell they're pros the moment they walk in."
"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!"
"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!"
"excellent work and quality"
"Denair is professional and courteous."
"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 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."
"Denair is the most dependable HVAC service company in New York!"
"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 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..."
"Really great to work with, awesome staff, happy to work with them anytime again in the future! Highly recommend."
"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."
"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."
"Impeccable install. You can tell they're pros the moment they walk in."
"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!"
"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!"
"excellent work and quality"
"Denair is professional and courteous."
"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 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."
"Denair is the most dependable HVAC service company in New York!"
"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 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..."
"Really great to work with, awesome staff, happy to work with them anytime again in the future! Highly recommend."
"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."
"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."
"Impeccable install. You can tell they're pros the moment they walk in."
"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!"
"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!"
"excellent work and quality"
"Denair is professional and courteous."
"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"
Manhattan's building stock demands a contractor with proven expertise, speed, and accountability—here's what sets Denair apart.
28 OSHA-certified technicians trained by major manufacturers, handling MUA jobs from $10K to $5M across NYC.
24/7 emergency availability with typical response within 4 hours—critical for Manhattan buildings where downtime means code violations.
All-in fixed proposal pricing with no surprise costs—clients have saved over $186,000 through value engineering in six months.
Deep familiarity with NYC mechanical codes, Local Law 97, and Manhattan building requirements ensures every MUA installation passes inspection.
Experienced professionals dedicated to Manhattan's most demanding HVAC challenges.
Founder & CEO
Dennis founded Denair HVAC in March 2007 with nothing more than a used truck and 7 years of industry experience following a layoff—a founding story that shaped the company's relentless work ethic. Over the next five years, he grew the business from zero to $2 million in annual revenue, and by 2019, Denair was recognized by Inc. 5000 as one of America's fastest-growing companies. With over 17 years of hands-on HVAC expertise spanning commercial installations, makeup air systems, and mission-critical facilities across Manhattan and the greater New York metro area, Dennis leads the company's strategic vision with a commitment to honesty, value engineering, and client satisfaction.
Service Manager
Thomas leads Denair HVAC's service operations across Manhattan and the NYC metro area, ensuring fast response times, efficient technician scheduling, and consistent service quality on every makeup air unit and HVAC job. He coordinates field crews and customer communication to minimize downtime and deliver a seamless service experience from the first call to final sign-off. His operational expertise is central to Denair's ability to respond to Manhattan commercial clients within 4 hours, keeping building systems compliant and running reliably through New York's demanding four-season climate.
Application Engineer
Ramil designs and supports HVAC systems tailored to each building's specific performance and efficiency requirements across New York's diverse building stock—from Manhattan high-rises to multi-family residential properties. He oversees equipment selection for makeup air units, technical planning, and application support to ensure long-lasting reliability, meaningful energy savings, and fully code-compliant solutions. His engineering approach integrates NYC Local Law 97 sustainability requirements into every design, helping property managers and building owners reduce energy costs while meeting increasingly stringent city mandates.
Lead Estimator
Farrukh has been with Denair HVAC since 2010, bringing deep expertise in bid preparation for commercial HVAC and makeup air unit projects across Manhattan and the broader NYC market. As Lead Estimator, he is responsible for comprehensive and timely proposal preparation, scope breakdowns, alternates, and revisions—ensuring every client receives a transparent, competitive bid. His command of value engineering has contributed directly to clients saving over $186,000 on HVAC installations, and his ability to track opportunities with vendors, subcontractors, and customers keeps Denair's $76M+ project bid portfolio moving efficiently.
A makeup air unit (MUA) replaces the conditioned air exhausted from a building—primarily from commercial kitchen hoods, exhaust fans, or ventilation systems. Without it, negative pressure builds up, causing doors to slam, drafts to form, combustion appliances to backdraft, and HVAC systems to work harder. In Manhattan commercial buildings, MUAs are essential for code compliance, occupant comfort, and energy efficiency.
Our Manhattan HVAC specialists are ready to provide expert answers and a free estimate.
Denair HVAC provides makeup air unit service across Manhattan and the greater New York metropolitan area.
11 Regions
Service Area
24/7 Response
Emergency Availability
Within 4 Hours
Typical Response Time
Contact us to confirm coverage and schedule a free on-site MUA assessment.
Named one of America's fastest-growing companies by Inc. 5000.
All technicians hold OSHA 40-hour safety certification for job site compliance.
Licensed Registered Mechanical/HVAC Contractor in New York State.
Fill out the form below and a Denair HVAC specialist will contact you promptly to discuss your MUA service needs, schedule an on-site assessment, and provide a transparent, fixed-price proposal.
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