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Commercial HVAC Services on Long Island
Com+ Mechanical services commercial properties across all of Long Island, covering both Nassau and Suffolk Counties. From industrial parks and manufacturing floors to warehouses and Class A office campuses, we keep Long Island's commercial mechanical systems running year-round.
Why Com+ Mechanical serves Long Island
Long Island's commercial landscape stretches from dense Nassau retail to Suffolk's industrial corridors, distribution centers, and manufacturing facilities. Each calls for different expertise — process cooling for manufacturing, makeup air for warehouses, large-tonnage rooftop units for office parks, and dedicated outdoor air systems for newer construction. Our team handles the full range with the same crews and the same accountability, so multi-site portfolios get one point of contact across both counties.
Building Types We Serve
- Industrial Facilities
- Manufacturing Plants
- Warehouses & Distribution
- Office Parks & Campuses
- Flex & Light Industrial
Cities & Neighborhoods
Active service coverage includes:
- Nassau County
- Suffolk County
- Hauppauge
- Melville
- Farmingdale
- Ronkonkoma
Commercial HVAC Services
Full-service commercial HVAC capabilities, dispatched locally.
Rooftop Units (RTU)
Install, replace, and service single- and multi-zone rooftop packaged units.
VRF / VRV Systems
Design, install, and maintain variable refrigerant flow systems for multi-zone comfort.
Commercial Boilers
Steam and hot-water boiler service, retrofits, and full plant replacements.
Chillers
Air-cooled and water-cooled chiller maintenance, repair, and replacement.
Preventive Maintenance
Scheduled PM contracts that extend equipment life and prevent surprise failures.
24/7 Emergency Service
Rapid-response dispatch when commercial equipment goes down — any hour, any day.
Need Service in Nassau County?
Talk to a real commercial HVAC dispatcher — no call centers, no runaround.