Expert HVAC
System Installation
Built to Last.
From commercial rooftops to high-rise residential units, Denair HVAC delivers precision-engineered installations backed by factory-certified technicians and deep New York compliance expertise.
What's Included in Every Installation
- ✓ Full site assessment & load calculation
- ✓ Equipment selection & specification
- ✓ Certified factory-trained installation team
- ✓ LL97 & NYC code compliance verification
- ✓ ConEd & NYSERDA rebate assistance
- ✓ System commissioning & startup testing
- ✓ Post-installation training & documentation
Installation Done Right,
The First Time.
We don't cut corners. Every Denair installation is engineered for peak performance, energy efficiency, and long-term reliability — with full accountability from day one.
Energy Optimized
We size and spec every system precisely to reduce energy waste and operating costs from day one.
Code Compliant
Full NYC LL97 compliance built into every installation — we handle all permits and inspections.
Fully Warranted
Labor and manufacturer warranties on every installation with ongoing service plan options.
BAS/BMS Ready
Smart building integration with 75F, Honeywell, and other leading automation platforms.
Our Installation Approach
Site Assessment & Load Calculation
Precise engineering review of your space, occupancy, and thermal load requirements.
Equipment Specification & Procurement
Right-sized equipment from industry-leading brands to match your specific application.
Certified Installation & Integration
Factory-trained crews complete the installation to full manufacturer specification.
Commissioning, Testing & Handover
Full system startup verification with documentation and operator training.
Every System. Every Application.
From single-zone retrofits to full building HVAC overhauls, Denair handles it all — with precision, accountability, and zero disruption to your operations.
Commercial RTU Installation
AAON, Trane, Carrier, Daikin — we install and commission rooftop units for commercial buildings of all sizes, including custom curb adapters and crane operations in NYC.
VRF / VRV System Installation
LG, Mitsubishi, and Fujitsu VRF/VRV multi-zone systems installed by brand-certified technicians. Ideal for high-rise residential, hotels, and mixed-use buildings.
DOAS & ERV Installation
Dedicated Outdoor Air Systems and Energy Recovery Ventilators for superior indoor air quality, ASHRAE 62.1 compliance, and energy-efficient fresh air delivery.
Computer Room Cooling
Mission-critical precision cooling for data centers and server rooms. Stulz and Liebert certified installation with redundancy design and 24/7 monitoring capability.
BAS / BMS Controls Integration
75F and Honeywell building automation systems installed and integrated with your HVAC equipment for centralized monitoring, scheduling, and energy optimization.
VFD Installation & Retrofit
Variable Frequency Drive installation on fans, pumps, and compressors to dramatically reduce energy consumption and qualify for ConEd & NYSERDA incentives.
We Install Every Type of System
Whatever your building requires, Denair's factory-trained team has the certifications and hands-on experience to get it installed correctly.
Rooftop Units
Commercial & industrial RTUs from 1 to 100+ tons
Chilled Water
Chiller plants, AHUs, and fan coil unit systems
Split Systems
Mini-splits and multi-zone residential & commercial
Heat Pumps
Air-source & ground-source heat pump systems
Boiler Systems
Hydronic heating systems, controls, and zoning
Makeup Air Units
Kitchen, lab, and industrial ventilation systems
BAS / Controls
Building automation and energy management systems
Precision Cooling
Server room & data center critical cooling systems
Brands We're Certified To Install
Factory training means we do it right the first time — and honor full manufacturer warranties.
6 Stages to a Perfect Installation
Our structured process eliminates surprises, keeps projects on schedule, and ensures every installation meets the highest standards.
Consultation
Site visit, building review & project scoping
Engineering
Load calculations, system design & specs
Proposal
Detailed scope, timeline & transparent pricing
Procurement
Equipment ordered & delivery coordinated
Installation
Certified crew executes to spec, on schedule
Commissioning
Testing, startup, documentation & training
Built for New York's Most Demanding Buildings
From Class A office towers to residential high-rises and mission-critical facilities — Denair installs HVAC systems in the environments that can't afford failure.
Explore Our Projects →Commercial Office
Class A & B office buildings
Hospitality
Hotels, resorts & restaurants
Mixed-Use
High-rise residential & retail
Healthcare
Medical offices & clinics
Data Centers
Mission-critical environments
Education
Schools, universities & labs
Industrial
Warehouses & manufacturing
Government
Municipal & public facilities
We Handle LL97,
ConEd & NYSERDA.
Our installations are designed with New York's carbon emission laws and incentive programs built in from the start — not as an afterthought.
LL97 Compliance
Carbon penalty avoidance strategy built into every system spec
ConEd Incentives
We identify and process all eligible rebates on your behalf
NYSERDA Programs
Clean energy grants and financing for qualifying upgrades
Energy Benchmarking
LL84 reporting and benchmarking data from your new system
What a Smart Installation Saves You
- → Avoid costly LL97 carbon penalties starting 2024
- → ConEd rebates up to $500,000+ on large projects
- → 20–40% reduction in annual energy operating costs
- → Extended equipment life through proper sizing & install
- → Reduced maintenance costs over system lifecycle
- → Higher property value & ENERGY STAR certification
Trusted by NYC's Building Owners & Managers
Our work speaks for itself — but our clients speak louder.
Denair replaced our entire rooftop unit system across three buildings in under two weeks. Zero disruption to tenants, full permit sign-off, and they handled the ConEd rebate paperwork. Exceptional team.
We needed a VRF system in a historic building with serious space constraints. Denair engineered a solution that no one else could figure out. Mitsubishi certified, clean install, on budget.
Our server room cooling failed on a Friday night. Denair had a Liebert precision unit installed and running by Sunday. Their 24/7 response and expertise in mission-critical systems is unmatched in the city.
Frequently Asked Questions
Still have questions? Call us at (212) 776-1333 or visit DenairHVAC.com — we're happy to walk you through any project.
Get Your HVAC Installation Quote Today.
Talk to a Denair expert about your project. We'll assess your needs, identify available incentives, and deliver a clear proposal — fast. No obligation, no pressure.