Greenheck MAU service
built for
Manhattan
kitchens that can't stop
Factory-certified Greenheck make-up air unit service for Manhattan's restaurants, hotels, and commercial kitchens. Same-day response, OEM-grade repair, and code-compliant burner service.
Our Greenheck MAU Services in Manhattan
Comprehensive repair, maintenance, and replacement for Greenheck make-up air units — keeping Manhattan's kitchens and commercial spaces properly ventilated.
Emergency Greenheck MAU Repair
A dead make-up air unit can force a Manhattan kitchen to shut down exhaust operations entirely. Our Greenheck-trained technicians reach sites typically within 4 hours with common burner and blower parts on hand.
Burner & Gas Train Service
Gas-fired MAU burners require precise combustion tuning and safety-train inspection. We service ignition systems, gas valves, and burner assemblies to keep your unit running safely and efficiently.
Greenheck MAU Preventative Maintenance
Scheduled inspections covering filters, belts, burner components, and controls — timed to Manhattan's seasonal kitchen exhaust demands so failures get caught before service hours.
Controls & Sequence Calibration
We calibrate MAU controls to properly track exhaust fan demand, preventing negative pressure issues in the kitchen and unnecessary energy use when exhaust isn't running.
LL97 Compliance Optimization
NYC's Local Law 97 targets buildings over 25,000 sq ft — and gas-fired make-up air units are a direct combustion emissions source. We assess your MAU's contribution to your building's carbon exposure.
Greenheck MAU Replacement & Retrofits
When a unit reaches end of life, we handle full replacement — engineering-grade spec, rooftop rigging, DOB and FDNY coordination where required, and startup commissioning.
From cold kitchen to back online
One partner handles every step. Here's how we do it.
Same-day site assessment
You call, we respond. A Greenheck-trained technician reaches your Manhattan location within 4 hours, equipped with diagnostic tools and common MAU parts to resolve most issues on the first visit.
Root cause diagnosis
We don't replace components until we understand the failure. A full diagnostic — burner, gas train, blower, controls — identifies the real cause rather than masking symptoms that resurface later.
Fixed-price proposal
Before a wrench turns, you receive a clear, itemized quote with no hidden line items. What we quote is what you pay — we absorb any unintended costs.
Certified repair & commissioning
Factory-certified technicians execute the repair to Greenheck's OEM specifications, followed by a full combustion and airflow commissioning check before we leave the roof.
Why Manhattan Facility Managers Choose Denair
Factory-Certified Expertise
Factory-trained on Carrier, Trane, AAON, Daikin, Mitsubishi Electric, and LG VRF systems.
Same-Day Manhattan Response
27 technicians in the field, on-site in Manhattan within 4 hours, day or night.
Fixed, Transparent Pricing
You approve the cost before we start — no hourly surprises, no hidden charges.
NYC Code & LL97 Expertise
We understand how repairs intersect with Local Law 97 and DOB requirements.
Success Stories
See how NYC property owners and facility managers count on Denair HVAC.
Meet the Denair NYC Team
Denair HVAC is built by people who've spent their careers keeping NYC buildings comfortable — from the engineers who size every system to the technicians who show up when it matters most.
Questions we hear every day
Straight answers about Greenheck MAU service in Manhattan — no marketing fluff.
How quickly can Denair respond to a Greenheck MAU failure in Manhattan?
Is Denair an authorized Greenheck service provider?
How does Greenheck MAU service relate to NYC Local Law 97 compliance for Manhattan buildings?
What does Greenheck MAU maintenance cost in Manhattan?
Can Denair replace an aging Greenheck MAU on a Manhattan building?
Serving Manhattan and the Greater NYC Metro
From Midtown restaurants to Financial District commercial kitchens, Denair HVAC's Greenheck-certified technicians cover 11 regions with the same 24/7 availability. We've been working NYC and metro-area buildings for 19 years — and we understand the access, logistics, and code requirements that make every market different.
Awards and Recognition
Inc. 5000 Award
Recognized as one of America's fastest-growing companies.
OSHA 40-Hour Certified
Full team compliance with federal workplace safety standards.
Licensed Mechanical Contractor
Registered HVAC contractor fully licensed for NYC commercial work.
Factory-certified to install and service the world's
leading make-up air unit brands
Authorized and factory-trained on the make-up air unit manufacturers Manhattan buildings rely on most. This means access to proprietary diagnostic software, genuine parts, extended warranty programs, and the engineering support your ventilation system deserves.
Get Your Manhattan Greenheck MAU Assessment — No Obligation
Tell us about your building and make-up air equipment. A Denair specialist will respond within one business day with a clear assessment and fixed-price proposal. No pressure, no upsell — just straight answers from people who know Greenheck systems and Manhattan buildings.