DEZIER AIRRESIDENTIAL & COMMERCIAL HVAC

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Request Service

Request Service
Request Service
Service and consultations are billed.
We’ll confirm availability and next steps by text, email or phone call.

Expert HVAC Services
across all five NYC boroughs, Westchester County and Rockland County

Service, maintenance, repairs, and installations across all five NYC boroughs, Westchester County and Rockland County — with documented work, clean execution, and clear communication.

7% OFF Parts up to $5,000 cap
3% OFF Equipment up to $10,000 cap
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Members get consistent care cadence tailored to their system. Documented visits with priority scheduling, and dedicated support.
Licensed & insured
See our Google reviewsCall (800) 699-8632
Mitsubishi Electric Diamond Contractor
LG Pro Dealer (LG HVAC Authorized Dealer)
Samsung HVAC Preferred Dealer

Serving all five NYC boroughs, Westchester County and Rockland County

Repair, Installation, Maintenance

Dezier Air is a New York City HVAC company serving residential and commercial buildings across all five NYC boroughs, Westchester County and Rockland County.

What we do HVAC repair, preventative maintenance, installations and replacements, emergency calls, and commercial HVAC service. We support mini-split and VRF systems, heat pumps, and high-rise building equipment.
How we work Clear communication, clean execution, and documented service. We confirm access requirements, system details, and next steps, then dispatch with the right technician and parts plan whenever possible.
Helpful details to include in your service request
  • System type (central air, boiler/furnace, mini-split, VRF, heat pump) and unit location (roof, closet, mechanical room)
  • Access notes (doorman, keys, roof hatch, ladders, service elevator rules, parking/loading)
  • Thermostat error codes (if any) and photos of the unit label (model/serial)
  • Timing constraints (quiet hours, events, tenant scheduling windows)

Google Reviews

Trusted by NYC homeowners and commercial clients.

★★★★★
Read our latest reviews on Google
Verified feedback from residential and commercial clients across all five NYC boroughs, Westchester County and Rockland County.
Read More Reviews
★★★★★
“Dezier Air quickly solved the issue with our furnace, and they almost immediately got it functioning again. They also examined the HVAC system more broadly, and provided excellent advice on our particular needs. They run an extremely professional, high-end operation.”
— Andrew G.
★★★★★
“From the moment they arrived, they were courteous, professional, and extremely knowledgeable.”
— Freddy L.
★★★★★
“We kicked off our HVAC remediation project in September and wrapped it successfully by late October 2025. Throughout the process, Dezier Air was flexible and highly collaborative, working around VIP buyouts, events, and limited time windows to ensure there was zero disruption to our member experience.”
— Matthew S.
Reviews displayed are excerpts from our Google Business Profile.

Licensed & Trusted

Ask about financing for qualifying installs and upgrades.
Subject to approval.

Financing Partners
GreenSky Financing Synchrony Financing
Equipment & Technology Partners
Samsung HVAC LG HVAC Mitsubishi Electric HVAC
Licensed & insured in NYC
High-rise & commercial experience
Documented service with photos & notes
Financing options available for qualifying installs and upgrades.
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High-rise HVAC expertise in NYC — clean execution, clear communication, and minimal disruption.

Licensed. Trusted. Preferred Dealer Status.

Dezier Air supports residential and commercial HVAC across all five NYC boroughs, Westchester County and Rockland County with documented service, clean execution, and system-specific expertise (mini-splits, VRF, heat pumps, ventilation, and high-rise constraints).

Dealer programs that support quality installs & smoother warranty support

Mitsubishi Diamond Contractor, LG Pro Dealer, and Samsung Preferred Dealer status typically require training and product familiarity— helpful for clients who want correct commissioning, reliable performance, and clear documentation.

  • Commercial: controls strategy, ventilation, and service access matter as much as equipment.
  • Residential: noise control, condensate routing, and clean line-set paths protect finishes long-term.
  • NYC reality: COI, doorman rules, work-hour windows, roof access, and approvals shape the plan.
Mini-Split / VRF Heat Pumps Indoor Air Quality
Dezier Air service vehicle vector illustration

What clients get from Dezier Air

Clean work areas, documented service notes, building-aware scheduling, and a plan that accounts for access constraints. We focus on predictable airflow, noise control, and serviceability.

Documented service Noise control Airflow + balancing Ventilation strategy High-rise readiness

How to choose the right HVAC system in NYC

System selection is building-specific. These are the questions that decide what’s feasible and what will perform well.

  • Where can outdoor equipment go (roof, terrace, rear yard, setback)?
  • Is the building occupied during work? Do you have work-hour restrictions?
  • Do you need a COI? Any service elevator or loading dock rules?
  • Is electrical capacity sufficient for heat pumps or VRF?
  • Do you need outside air / ventilation upgrades?

What to include in a service request (fastest dispatch)

Including these details helps route the right tech and parts plan.

  • System type + unit location (roof/closet/mechanical room)
  • Access notes (doorman, keys, roof hatch, COI, work hours)
  • Error codes (if any) + photos of the unit label (model/serial)
  • What changed: noise, weak airflow, leaks, smells, temperature swings
  • Timeline: urgent outage vs planned upgrade

Quick system type guide

Common system choices for NYC apartments, brownstones, offices, and commercial spaces:
Mini-Splits Best when ducts are limited and zoning matters. Explore mini-split / VRF
VRF (Multi-Zone) Best for commercial and complex layouts with independent zones. Commercial HVAC
Heat Pumps All-electric heat + cooling for modern upgrades. Heat pumps
Ventilation / IAQ Outside air strategies for comfort + code. Indoor air quality
Repairs Fast diagnosis and documented solutions. HVAC Repair
Maintenance Prevent breakdowns and stabilize performance. HVAC Maintenance
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Frequently Asked Questions

Common questions about HVAC service, coverage, and scheduling in NYC.

What areas of NYC do you service?
Dezier Air services all five NYC boroughs, Westchester County and Rockland County. We work in residential buildings, commercial spaces, and high-rise properties across this service area.
What HVAC systems do you work on?
We service central air systems, boilers and furnaces, mini-splits, VRF systems, heat pumps, ventilation equipment, and commercial HVAC setups.
Do you offer emergency HVAC service?
Emergency service is available depending on technician availability and site access. Submit a request with your address, system type, and issue details so we can route it properly.
How does pricing work for service calls?
Service and consultations are billed. We confirm scope, access, and next steps before dispatch so there are no surprises.
What is Atmosphere Membership?
Atmosphere Membership is a proactive care plan that includes priority scheduling, documented visits, and member savings on parts and equipment based on membership terms.
What should I include when requesting service?
Include your address, system type and location, access notes, thermostat error codes (if any), and photos of the unit label when possible.

HVAC Knowledge & Best Practices

Practical guidance from our team — real insights for NYC buildings and HVAC ownership.

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Visit our full library of insights & best practices: Insights

Services

Residential and commercial HVAC service across all five NYC boroughs, Westchester County and Rockland County.

HVAC Services HVAC Repair · HVAC Maintenance · HVAC Installation · Emergency Service
Commercial HVAC · Mini-Split / VRF · Heat Pumps · Indoor Air Quality
Service Areas All Service Areas
Manhattan · Brooklyn · Queens · Bronx · Staten Island

Location

24-57 49th Street
Astoria, NY 11103

Hours

Mon–Fri
7:30 AM–5:00 PM

Sat–Sun
9:00 AM–5:00 PM

Contact

(800) 699-8632

team@dezierair.com