Mini splits cool offices, shops, server rooms and apartments across the city. When one stops working, Com+ Mechanical diagnoses and repairs ductless systems from every major brand.
Low refrigerant, a dirty coil, a failed sensor or an outdoor unit fault.
A clogged drain line, failed condensate pump or iced coil.
The system has logged a fault — we read and test the cause.
Mold or debris on the coil or blower wheel.
Sensor, board or refrigerant problems.
Ductless systems fail for a short list of reasons: refrigerant leaks, clogged drains, dirty coils, failed boards or sensors, and communication faults between indoor and outdoor units. We read the error codes, test the system and give you written repair options before work starts.
From call to comfort in 4 easy steps
Tell us the brand and what the unit is doing.
We read error codes and test the system.
You approve the repair before we start.
We fix it and confirm it runs correctly.
We work on offices, retail, server rooms and multifamily buildings.
Mitsubishi, Daikin, Fujitsu, LG, Samsung and more.
We fix the leak instead of just adding refrigerant.
Repair options in writing before work starts.
No fees. No surprises. Just honest service.
Find and fix the failing part.
Find, fix and recharge.
Keep units clean and reliable.
Final pricing is confirmed in writing after diagnosis.
Business+ plans start at $499/year — includes 2 rtu tune-ups, 15% off all services, and priority scheduling.
Factory-trained technicians for all major HVAC manufacturers









Don't see your brand? We service all major manufacturers! Call us to confirm.
Commercial HVAC service for buildings across the five boroughs and nearby counties
Get answers to common questions about our services
Yes. We repair single-zone and multi-zone mini split systems for commercial and multifamily buildings across NYC and Long Island.
Usually a clogged drain line, a failed condensate pump or a frozen coil. We clear the cause and check why it happened.
Blinking lights mean the system has logged an error code. The code points us to the fault, which we then test before replacing parts.
Most single-part failures are worth repairing. Older systems with compressor failure or repeated leaks are often better replaced. We give you both options in writing.
Manage a building we've serviced? A quick review helps other NYC property managers and building owners find us.
EPA-certified · factory-trained · fully insured
Our businesses' top picks for heating, cooling & air quality
Equipment services, industry expertise, NYC compliance, and the metro areas we cover.