24-hour rooftop unit
repair for
Manhattan
buildings that can't wait

Denair runs live dispatch 24/7/365 — no answering service, no voicemail. A certified technician is typically on-site within 4 hours of your call, any hour, staged from our Brooklyn base with common RTU parts already on the truck for same-visit repairs in most cases.

We're factory-certified on Carrier, Trane, Lennox, AAON, Daikin, and more, so our technicians carry the OEM knowledge and common parts to service almost any packaged rooftop unit in Manhattan without waiting on a manufacturer referral.

A degraded rooftop unit running past its design limits draws significantly more energy, directly increasing your building's carbon emissions under LL97. Because Manhattan buildings over 25,000 sq ft face escalating penalties, fast repair — rather than letting a unit limp along — is one of the quickest ways to hold down your emissions exposure. We include an LL97 impact note with every major repair call.

Diagnostic visits are quoted upfront, and any repair work comes with a fixed, itemized price before a wrench turns — no after-hours surcharge buried in your invoice. Exact cost depends on the failure, unit age, and part availability, but you'll always approve the number before we start.

Yes. When a repair can't be completed same-day, we can deploy temporary rental cooling or heating equipment to bridge the gap, so tenants stay comfortable while we source parts or complete the fix.