Contact Dezier Air

Reach our team for HVAC service, estimates, maintenance planning and design consulting across all five NYC boroughs, Westchester County and Rockland County. Tell us your building type and what you want to do, and we’ll point you to the right next step.

Fastest ways to reach us

• Call (800) 699-8632. For urgent issues, calling is the fastest way.
• Text (929) 992-3022. Send photos of equipment, plans or the job site.
• Email team@dezierair.com. Include your address, building type and a short description of the issue or project.
• Office: 24-57 49th Street, Astoria, NY 11103.
• Hours: Monday-Friday 7:30 AM-5 PM; Saturday-Sunday 9 AM-5 PM. For emergencies, we offer same-day and after-hours response, depending on technician coverage and building access.

What to include for faster support

• Address and building type (co-op, condo, rental, single-family, commercial)
• The issue or goal (no heat, no cooling, leaking, noise, upgrade, new install)
• System type (mini-split, VRF, PTAC, boiler, furnace, central air, heat pump)
• Photos of the equipment, thermostat or controller, and any visible error codes
• Access notes (doorman, roof access rules, service elevator hours, parking/loading)
• Timeline (urgent, this week, or planning a renovation)

Where to start

• Repairs, maintenance and installations: submit a service request, and we’ll confirm availability and next steps by text, email or phone.
• Renovations and new systems: start with Design & Consulting.
• Ductwork from your plans: use the ductwork quote tool.
• Ongoing care: see maintenance plans and Atmosphere Membership.

Coverage

We serve residential and commercial properties in Manhattan, Brooklyn, Queens, the Bronx, Staten Island, Westchester County and Rockland County. See all service areas.

Service visits and consultations are billed; we confirm the details before we arrive.