HVAC Services in New York City
Dezier Air provides full-scope residential and commercial HVAC services across NYC. From system design and engineering to installation, repair, maintenance, and performance optimization — our work is built for complex buildings, high-rise environments, and long-term reliability.
Core HVAC Services
Primary service lines — built for NYC homes, high-rise buildings, and commercial spaces.
HVAC Repair
Diagnosis-led repair for heating and cooling failures — with clear reporting and clean execution.
- System diagnostics & troubleshooting
- VRF, mini-split, central & mixed systems
- Electrical, controls, airflow, and performance issues
- Residential and commercial support
HVAC Maintenance
Preventive care designed to reduce breakdowns, extend equipment life, and improve performance.
- Seasonal maintenance programs
- Filter servicing and coil care
- Condensate management & drain line checks
- Documented service reporting
HVAC Installation & Replacement
New installs, replacements, and upgrades — engineered for NYC layouts, constraints, and code requirements.
- New systems & replacements
- Equipment upgrades and retrofits
- Residential & commercial installations
- Code-compliant, clean close-out
Emergency HVAC Service
Rapid response for outages and time-sensitive issues affecting comfort, operations, or building requirements.
- Heating and cooling outages
- Priority handling for urgent needs
- Residential, commercial, and mixed-use
Commercial HVAC
Service, maintenance, installs, and upgrades for offices, retail, hospitality, restaurants, and buildings.
- Multi-unit & high-rise experience
- Operationally-aware scheduling
- Documentation for stakeholders
Residential HVAC
Trusted HVAC care for apartments, townhomes, and private residences — with clean work and clear communication.
- Repairs, maintenance, and installs
- System upgrades & efficiency planning
- Respectful, protected work areas
Need service now?
Request service and we’ll confirm availability and next steps by text, email, or phone. You’ll receive clear expectations and documented work.
Who We Serve
Residential, commercial, and mixed-use properties across NYC — with experience in complex, high-visibility environments.
- Residential homes and apartments
- High-rise and multi-unit buildings
- Commercial offices and retail
- Restaurants and hospitality spaces
- Mixed-use developments
- Developers, architects, and engineers
- Property managers and building staff
- Owners who want documented, dependable work
- Teams requiring clean scheduling and follow-through