AAON rooftop unit
service & repair
in Long Island City
built for LIC buildings
Factory-certified AAON service engineered for Long Island City's fast-growing mix of office towers, converted lofts, and mixed-use developments. Same-day response, OEM-grade repair, five boroughs.

Our AAON RTU Service Services in Long Island City
Comprehensive maintenance, repair, and replacement — keeping your AAON rooftop units running year-round across Long Island City's commercial and mixed-use buildings.
Emergency AAON RTU Repair
When your AAON unit goes down, every hour costs you. Our certified technicians reach Long Island City sites typically within 4 hours, stocked with genuine AAON parts to resolve most issues on the first visit.
AAON Preventative Maintenance
Custom maintenance plans starting from $396/year, built around your AAON unit's specific control board, coil configuration, and LIC's seasonal load swings.
Factory Controls Integration
AAON's built-in BACnet-ready controls pair directly with 75F or Honeywell building automation, cutting energy costs and giving your LIC building real-time performance visibility.
LL97 Compliance Optimization
NYC's Local Law 97 targets buildings over 25,000 sq ft — a growing share of Long Island City's redeveloped waterfront stock. We assess your AAON system's carbon exposure and implement fixes that reduce fines.
AAON Replacement & Retrofits
When repair no longer makes economic sense, we handle full AAON RTU replacement — engineering-grade spec, DOB filings, crane logistics, and startup commissioning included.
Air & Water Test and Balance
Certified TAB reports delivered post-service, confirming your AAON system meets design specifications and NYC code — documentation your LIC property manager needs on file.
From breakdown to back online
One partner handles every step. Here's how we do it.
Same-day site assessment
You call, we respond. A certified AAON technician reaches your Long Island City location within 4 hours — equipped with diagnostic tools and common AAON parts to resolve most issues on the first visit.
Root cause diagnosis
We don't replace parts until we understand the failure. A full diagnostic — electrical, refrigerant, mechanical — identifies the real cause of your AAON unit's issue 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 AAON's OEM specifications, followed by a full startup and commissioning check verifying airflow, refrigerant charge, and performance before we leave the roof.
Why Long Island City Facility Managers Choose Denair
Factory-Certified Expertise
Factory-trained on AAON, Carrier, Trane, 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 aaon rtu service in Long Island City — no marketing fluff.
How quickly can Denair respond to an emergency AAON RTU failure in Long Island City?
Is Denair HVAC an authorized AAON service provider?
How does AAON RTU service relate to NYC Local Law 97 compliance for Long Island City buildings?
What does an AAON preventative maintenance contract cost in Long Island City?
Can Denair handle full AAON RTU replacement on a Long Island City building?
Serving Long Island City and the Greater NYC Metro
From Long Island City's waterfront towers to suburban commercial facilities across Nassau and Westchester, Denair HVAC's certified AAON 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 repair the world's
leading rooftop unit brands
Authorized and factory-trained on the RTU 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 rooftop unit deserves.







Get Your Long Island City AAON RTU Assessment — No Obligation
Tell us about your building and 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 AAON systems and Long Island City buildings.

