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Commercial AC Repair for NYC & Long Island Businesses
When the cooling goes out, tenants complain, food spoils and customers leave. Com+ Mechanical repairs commercial air conditioning across the five boroughs and Long Island: rooftop units, split systems, VRF, PTACs and chillers, around the clock.
Common Commercial AC Problems
Warm air from vents
Often a failed compressor or capacitor, low refrigerant or a dirty condenser coil.
Unit won't start
Electrical faults, tripped safeties, failed contactors or control problems.
Some zones hot, others cold
Damper, VAV box, sensor or airflow problems across the building.
Water leaks or ice on coils
Clogged condensate drains, low airflow or low refrigerant charge.
High energy bills
Dirty coils, failing economizers or equipment running out of sequence.
Loud noises
Worn fan motors, belts or bearings, or a compressor under strain.
Commercial AC Repair, Done Right the First Time
Commercial cooling systems are bigger and more varied than home units, and a quick part swap often hides the real problem. Our technicians trace the root cause, whether it's electrical, refrigerant, airflow or controls, and give you clear repair options in writing before work starts.
What Our Commercial AC Repair Covers
Why Fast, Accurate AC Repair Matters
Our Simple Process
From call to comfort in 6 easy steps
Dispatch
Call or request service online; we confirm the site and access.
Diagnosis
We test the system and find the root cause.
Written options
You approve the repair scope before work begins.
Repair
Most common parts are fixed on the first visit.
Testing
We verify cooling, pressures and controls.
Follow-up
Recommendations to prevent the next breakdown.
Why Businesses Call Com+
Commercial only
We work on commercial buildings, not homes.
All system types
RTUs, splits, VRF, PTACs and chillers under one contractor.
24/7 response
Dispatch across NYC and Long Island, nights and weekends.
Clear scope
Repair options in writing, so there are no surprises.
Transparent Pricing
No fees. No surprises. Just honest service.
Repair visit
Find and fix the failing component.
- Root-cause troubleshooting
- Written repair options
- Common parts on the truck
Major repair
Compressor, coil or refrigerant work.
- Leak search & repair
- Major component replacement
- Startup & testing
Service agreement
Planned maintenance plus priority repair.
- Seasonal maintenance
- Priority dispatch
- Equipment records
Final pricing is confirmed in writing after inspection.
Own a Commercial Property?
Business+ plans start at $499/year — includes 2 rtu tune-ups, 15% off all services, and priority scheduling.
Equipment & Brands We Service
Factory-trained technicians for all major HVAC manufacturers
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Don't see your brand? We service all major manufacturers! Call us to confirm.
Serving the New York City Metro Area
Commercial HVAC service for buildings across the five boroughs and nearby counties
Frequently Asked Questions
Get answers to common questions about our services
Do you offer commercial AC repair in NYC?
Yes. We repair commercial air conditioning across Manhattan, Brooklyn, Queens, the Bronx, Staten Island and Long Island.
Do you offer emergency commercial AC repair?
Yes. We dispatch 24/7 for cooling failures in commercial buildings.
What types of commercial AC do you repair?
Rooftop units, split systems, ductless and VRF systems, PTACs, chillers and cooling towers.
Should I repair or replace my commercial AC unit?
Repair usually makes sense for single part failures on sound equipment. Older units with compressor failure or repeat breakdowns are often better replaced. We give you both options in writing.
How can I prevent AC breakdowns?
Regular maintenance (coil cleaning, filter changes, belt and electrical checks) catches most problems before they cause a failure. A service agreement makes this routine.
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EPA-certified · factory-trained · fully insured
Most Requested Services
Our businesses' top picks for heating, cooling & air quality
Explore Commercial HVAC Resources
Equipment services, industry expertise, NYC compliance, and the metro areas we cover.
Equipment, Repair & Maintenance
- Commercial HVAC Repair
- Commercial HVAC Installation
- Commercial HVAC Replacement
- Commercial Water Heater Repair
- Air Handler Installation
- Rooftop Unit (RTU) Repair
- VRF / VRV Installation
- Commercial Heating Service
- Commercial Boiler Repair
- Commercial Chiller Repair
- PTAC Repair & Replacement
- Cooling Tower Service
- Air Handler Replacement
- Cooling Tower Maintenance
- Walk-In Cooler & Freezer Repair
- Building Automation (BAS)
- Preventive Maintenance
- HVAC Service Agreements
- 24/7 Emergency HVAC