Your HVAC System,
Covered Year-Round.
Denair's HVAC annual maintenance contract gives facility and building managers across New York City a single point of accountability — proactive maintenance, priority emergency response, and full documentation for LL97 compliance. No gaps, no surprises.
What's Included
Everything Your Building Needs.
Nothing Left to Chance.
Every Denair HVAC annual maintenance contract is customized to your building's systems and risk profile — not a generic checklist. Here's what contract clients receive across all five boroughs.
Priority Scheduling
Contract clients move to the front of the line — for both scheduled maintenance and emergency dispatch. No waiting behind non-contract calls during critical weather or peak demand periods.
24/7 Emergency Response
System failures don't wait for business hours. Our technicians are on call around the clock — dispatched fast across Brooklyn, Manhattan, Queens, the Bronx, and Staten Island.
Dedicated Technician
Your system gets a technician who knows it — its history, quirks, and performance baseline. That familiarity translates to faster diagnosis, fewer repeat visits, and better outcomes over time.
LL97 Compliance Documentation
Maintenance records, efficiency data, and service logs are maintained in a format that supports LL97 reporting requirements — protecting your building from avoidable fines as 2030 emission caps tighten.
Parts & Service Discounts
Annual contract clients receive preferred pricing on replacement parts and additional service labor. When unplanned repairs do arise, your contract rate applies — reducing total cost of ownership year over year.
Scheduled Seasonal Tune-Ups
Planned inspections timed around NYC's heating and cooling seasons — not reactive calls after something breaks. Pre-season tune-ups catch problems before they escalate into emergency repairs or tenant complaints.
The Case for a Contract
Reactive HVAC Is the Most Expensive Kind.
Without a structured maintenance program, most buildings in NYC end up paying three times — once for the deferred maintenance, once for the emergency repair, and again in tenant attrition or DOB violation exposure. A Denair annual contract turns HVAC from a liability into a managed asset.
- Catch failures before they happen — not after tenants call
- Protect equipment warranties with documented service records
- Build the compliance record your building needs for LL97 reporting
- Extend equipment lifespan — defer capital replacement costs
- Lock in budget-certainty — predictable HVAC spend, year over year
"Our contract clients don't call us in a crisis. They call us in October to make sure they never have a crisis."
— Denair HVAC Field Operations
Systems Covered
Full-System Coverage.
Factory-Trained on Every Platform.
Denair annual contracts can cover your complete mechanical system inventory — across equipment categories and brands. Our technicians are factory-certified on the platforms most commonly deployed in NYC commercial real estate.
Rooftop Units (RTUs)
AAON · Trane · Carrier · Daikin
VRF / VRV / DOAS Systems
LG · Mitsubishi · Fujitsu · Samsung
BAS / BMS Controls
75F · Honeywell
Computer Room Cooling
Stulz · Liebert
Variable Frequency Drives (VFDs)
ABB · Yaskawa
Air Handling Units (AHUs)
Air / Water Test & Balance
Split Systems & Heat Pumps
Commercial applications, all boroughs
Energy Management Systems
ConEd / NYSERDA incentive programs
Your Maintenance Contract Is Your Compliance Record.
LL97 fines begin in 2024 for buildings over 25,000 sq ft — and tighten significantly by 2030. Denair annual contracts generate the documentation NYC buildings need: service logs, efficiency data, and maintenance histories that auditors and attorneys can use. Don't build your compliance case from scratch when you need it. Build it year over year, alongside your maintenance program.
Discuss LL97 CoverageHow It Works
Up and Running in Four Steps.
Getting your building on a Denair annual contract is straightforward. We handle the assessment, scoping, and scheduling — you get coverage from day one.
Site Assessment
We conduct a complimentary walk-through of your building's mechanical systems — inventorying equipment, assessing current condition, and flagging any immediate risks.
Custom Contract Scope
We build a contract tailored to your equipment inventory, borough service area, budget parameters, and LL97 exposure — not a one-size template.
Technician Assignment
You're assigned a dedicated technician certified on your specific equipment brands. They learn your system and become your go-to resource throughout the contract term.
Year-Round Coverage Begins
Scheduled visits, priority emergency access, service documentation, and direct technician contact — active from day one of your contract term.
Common Questions
What Facility Managers Ask About HVAC Annual Maintenance Contracts.
Denair annual contracts include scheduled preventative maintenance visits, priority emergency response 24/7, a dedicated technician familiar with your system, discounts on parts and additional services, and full documentation for LL97 compliance reporting. Contract scope is customized based on your building's equipment and requirements — it is not a generic plan.
Yes. Denair's annual contracts include maintenance documentation that supports LL97 compliance reporting requirements. Our technicians also identify efficiency gaps and recommend upgrades that reduce your building's carbon output — helping you avoid fines as emission caps tighten in 2030.
Contract clients receive priority dispatch ahead of non-contract calls. Denair provides 24/7 emergency response across all five NYC boroughs — Brooklyn, Manhattan, Queens, the Bronx, and Staten Island — with technicians on call around the clock. You can reach our dispatch line at (212) 776-1333 any time.
Yes. Denair's annual contracts are structured to cover your full HVAC system — rooftop units, split systems, VRF/VRV systems, chillers, boilers, air handlers, and BAS/BMS controls. Each contract is scoped to your building's specific equipment inventory during the initial site assessment.
Contact Denair HVAC at (212) 776-1333 or use the contact form on this page. We'll schedule a complimentary site assessment, inventory your equipment, and build a contract tailored to your building's needs and budget. There's no obligation — just a clearer picture of what your system needs.
Ready to Lock In Year-Round Coverage?
Talk to a Denair engineer about an annual contract for your NYC building. We'll scope a plan around your systems, budget, and LL97 exposure — with no obligation.
Let's Talk About
Your Building.
Whether you're navigating LL97 compliance, planning a capital improvement project, or dealing with a system that can't wait — our team is ready to respond.
- 24/7 emergency response across all five NYC boroughs
- LL97 compliance expertise built into every engagement
- 10+ years partnering with NYC facility managers
- Proven 30% average reduction in energy costs