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
These are our 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.
Advanced Systems & High-Value Work
Specialized services that differentiate Dezier Air — engineered systems, efficiency upgrades, and complex site constraints.
VRF & Mini-Split Systems
Design, installation, and support for VRF and multi-zone systems with zoning flexibility and long-term efficiency.
- Heat pump and heat recovery configurations
- Multi-zone zoning strategy
- Install support for leading manufacturers
Heat Pump Systems
Modern heat pump solutions designed for comfort, efficiency, and NYC building realities.
- Air-source and water-source options
- Upgrade planning and integration
- Efficiency-focused system design
Boilers, Furnaces & Hydronic
Service and support for hydronic heating and traditional systems in residential and commercial environments.
- Boiler and furnace service
- Hydronic and radiant heating
- Water-cooled and electric resistance systems
Indoor Air Quality
Air quality solutions designed for building type, usage patterns, and real-world comfort concerns.
- HEPA filtration systems
- UV air sanitation
- Bipolar ionization options
Engineering, Design & Project Execution
We manage HVAC projects like engineered environments — planning, coordination, and dependable close-out.
HVAC Design & Consulting
Planning and system design support for renovations, retrofits, new builds, and complex upgrades.
- Design-build consultation
- Value engineering and cost optimization
- Coordination with architects and engineers
Project Management & Turnkey Delivery
Full project management and coordination for multi-trade environments and demanding schedules.
- Scheduling and stakeholder coordination
- Multi-trade integration (as needed)
- Close-out documentation
Contract Takeover & Rescue Work
For stalled, abandoned, or mismanaged projects — audit, recovery plan, and clean takeover with minimal disruption.
- Evaluation of incomplete installs
- Recovery roadmap and scope definition
- Execution with clear accountability
Controls, Performance & Optimization
Commissioning, controls, and performance verification for systems that need to run correctly — not just run.
Thermostats, Controls & BMS
Local thermostats and centralized control systems — including web-accessible building control solutions.
- Thermostat installation and programming
- Centralized control systems
- Automation and optimization
Commissioning & Performance Services
Startup, refrigerant charging, commissioning, and performance reporting — built for accountability.
- Startup and refrigerant charging
- Unit registration & commissioning
- Performance testing and reporting
Ductwork Fabrication & Air Balancing
Custom ductwork and airflow verification to ensure systems deliver comfort as designed.
- Custom sheet metal fabrication
- Duct measurement and airflow verification
- Balancing and follow-up testing
Maintenance Programs & Membership
Structured care designed to protect performance, reduce failures, and keep systems reliable year-round.
Atmosphere Membership
A structured HVAC care cadence with priority scheduling and documented visits — built for long-term protection.
- Scheduled care cadence
- Priority scheduling
- Documented service visits
Maintenance Plans
Maintenance plan options for owners and operators who want predictable oversight and fewer surprises.
- Annual / seasonal options
- Planning for high-use spaces
- Clear reporting and recommendations
Commercial Maintenance
Maintenance designed for operational environments, stakeholder reporting, and reduced disruption.
- Restaurants, retail, offices, buildings
- Site coordination and documentation
- Priority planning for peak seasons
Ready to discuss your HVAC needs?
Whether you’re dealing with an urgent repair, planning an upgrade, or managing a complex building, our team is ready to help.
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