Makeup Air Unit Diagnostics
Thorough inspection and diagnostic assessment of your commercial kitchen makeup air system, identifying failed components, airflow imbalances, and performance issues before they escalate into costly shutdowns.
NYC's commercial kitchens run hard — and when your makeup air unit fails, heat buildup, hood imbalance, and code violations follow fast. Denair HVAC's certified technicians diagnose and restore makeup air systems across all five boroughs, keeping your kitchen compliant, your staff comfortable, and your operation running without a costly shutdown.

Comprehensive makeup air unit repair and maintenance solutions for NYC commercial kitchens, restaurants, and food service facilities.
Thorough inspection and diagnostic assessment of your commercial kitchen makeup air system, identifying failed components, airflow imbalances, and performance issues before they escalate into costly shutdowns.
Expert repair and replacement of supply fans, motors, belts, and bearings within makeup air units, restoring proper airflow and ensuring your kitchen hood operates at the correct negative pressure balance.
Troubleshooting and repair of makeup air unit control boards, thermostats, variable frequency drives, and automation interfaces to restore accurate temperature regulation and demand-controlled ventilation.
Inspection, cleaning, and repair of heat exchanger components within direct-fired and indirect-fired makeup air units, maximizing energy efficiency and maintaining safe combustion performance.
Scheduled maintenance programs that keep your makeup air unit running efficiently year-round, including filter changes, coil cleaning, belt inspections, and airflow verification to prevent unexpected failures.
Around-the-clock emergency makeup air unit repair for NYC commercial kitchens. Certified technicians typically arrive within 4 hours to minimize downtime, health code risks, and operational disruption.

Contact our team and we dispatch a certified technician to your NYC location — typically within 4 hours for emergencies. We assess site access, unit location (rooftop or inline), and kitchen layout before beginning any work.
See how Denair HVAC has kept commercial kitchens across New York City compliant and operational.
NYC restaurant and facility operators trust Denair HVAC for makeup air unit repairs that are fast, code-compliant, and priced fairly.
We typically arrive within 4 hours for NYC emergency makeup air repairs, minimizing kitchen downtime.
OSHA-certified and manufacturer-trained team ensures every repair meets NYC DOB and ASHRAE ventilation code standards.
Transparent, fixed-price proposals before work starts — all unintended costs are covered at our expense, no surprises.
Since 2007, Denair HVAC has served commercial kitchens across all five boroughs and the greater New York metro area.
Experienced professionals committed to keeping NYC kitchens running safely.

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.
In NYC, commercial kitchen makeup air system installation typically ranges from $5,000 to $30,000+, depending on unit capacity (tonnage), fuel type (direct-fired, indirect-fired, or electric), ductwork complexity, and rooftop versus inline placement. Denair HVAC provides fixed-price proposals with value engineering to help reduce costs — clients have saved up to 35% compared to standard bids.
Speak with a certified NYC HVAC technician for a free consultation and honest answers.
Denair HVAC repairs commercial kitchen makeup air units across New York City and the greater metro area.
11 Regions
Service Area
Within 4 Hours
Emergency Response
4.7★ Rated
Customer Rating
Contact us to confirm coverage and schedule a same-day diagnostic visit.
Named one of America's fastest-growing companies in 2019.
All technicians hold OSHA 40-hour safety certification.
Fully licensed Mechanical/HVAC contractor registered in New York.
Fill out the form below and a Denair HVAC specialist will respond promptly to schedule your diagnostic visit, confirm service area coverage, and provide a transparent, fixed-price repair estimate — no obligation required.
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.