Make-up air service
built for
Long Island City
kitchens & industrial space
Make-up air unit repair and maintenance for Long Island City's restaurants, warehouses, and light-industrial buildings. Same-day response, burner tuning, and code-compliant service.
Our Make-Up Air Unit Services in Long Island City
Repair, maintenance, and replacement for make-up air units — keeping Long Island City's kitchens and industrial spaces properly ventilated and code-compliant.
Emergency MAU Repair
A failed make-up air unit can force exhaust systems offline entirely. Our technicians reach Long Island City sites typically within 4 hours, stocked with burner, blower, and control parts to resolve most issues same-day.
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 units running safely and efficiently.
MAU Preventative Maintenance
Scheduled inspections covering filters, belts, burner components, and controls — timed to seasonal demand so failures get caught before they take down operations.
Controls & Sequence Calibration
We calibrate MAU controls to properly track exhaust fan demand, preventing negative pressure issues 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.
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 intake to back online
One partner handles every step. Here's how we do it.
Same-day site assessment
You call, we respond. A certified technician reaches your Long Island City 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
Technicians execute the repair to OEM specifications, followed by a full combustion and airflow commissioning check before we leave the roof.
Why Long Island City Facility Managers Choose Denair
Factory-Certified Expertise
Factory-trained on Carrier, Trane, AAON, Daikin, Mitsubishi Electric, and LG VRF systems.
Same-Day Long Island City Response
27 technicians in the field, on-site in Long Island City 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 make-up air unit service in Long Island City — no marketing fluff.
How quickly can Denair respond to a make-up air unit failure in Long Island City?
Which make-up air unit brands does Denair service?
How does make-up air unit service relate to NYC Local Law 97 compliance in Long Island City?
What does make-up air unit maintenance cost in Long Island City?
Can Denair replace an aging make-up air unit in Long Island City?
Serving Long Island City and the Greater NYC Metro
From Court Square's office towers to the Long Island City waterfront, Denair HVAC's certified make-up air 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 Long Island City 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 Long Island City Make-Up Air Unit 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 MAU systems and Long Island City buildings.