Every system is different, but good service should always feel the same — organized, calm, and predictable.
Built to last
We take the time to do it properly. Systems we install or service are meant to stay reliable for years, not just until the next season.
Local & licensed
We’re a New York team, fully licensed and insured, familiar with city codes and the quirks of local buildings.
Clear estimates
Every job starts with a free estimate and a clear quote — you’ll know the cost, the scope, and the plan before we begin.
What We Do
Our Services
HVAC Repair
01
Maintenance
02
Installation
03
If your system stops heating, cools unevenly, or starts making noise, it’s time to call us.
We work with all major HVAC brands and handle both residential and commercial systems — from heat pumps to central air.
Most issues can be fixed in a single visit.
Seasonal maintenance keeps your system efficient and prevents sudden breakdowns.
We clean and check filters, coils, refrigerant levels, and electrical connections to keep everything running safely and smoothly.
Regular tune-ups extend lifespan and help avoid costly repairs later.
A new system should fit your building — not the other way around.
We install ductless mini-splits, heat pumps, and central air systems designed for New York layouts and code requirements.
Each installation includes a one-year labour warranty.
When to reach out
We work with homes and businesses, handling both new HVAC installations and existing systems.
Commercial property
You handle facilities for a commercial property.
We got it
Click to book and we’ll get
in touch within 2 hours
Educational facilities
You manage HVAC for schools or educational facilities.
We got it
Click to book and we’ll get
in touch within 2 hours
Older building
You manage HVAC in an older building.
We got it
Click to book and we’ll get
in touch within 2 hours
Large facilities
You need reliable climate control for large or public spaces.
We got it
Click to book and we’ll get
in touch within 2 hours
New property
You bought or rented a place and need HVAC set up properly.
We got it
Click to book and we’ll get
in touch within 2 hours
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in touch.
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in touch.
Where We Work
service areas
Staten Island
Detached homes and small offices value reliability and steady comfort. We handle furnace and heat-pump upgrades, clean installs, and seasonal tune-ups.
Queens
Multi-family homes and mixed-use buildings often need zoning and ventilation that actually match daily use. We balance shared systems, fine-tune airflow, and keep rooftops/basements easy to service.
Brooklyn
Brownstones, garden-level apartments, new condos — access and noise control matter here. We design compact, quiet systems, plan service access carefully, and keep everything up to code.
Manhattan
High-rises and busy commercial buildings need reliable systems that fit tight spaces and meet strict codes. We install efficient systems and keep them running quietly and reliably.
Ameristar 5 Ton + 4 Ton systems replacement
AC installation/ NY/ HVAC repair/ HVAC maintenance
Installing a 20K BTU 2-zones ductless Mitsubishi system in a townhouse
Ductwork/AC System/ HVAC Installation/AC Repair
AC system/ HVAC Installation/ Hyper Heat/ AC Repair
AC system/ HVAC Installation/ AC Repair
AC installation/ Ductwork Mitsubishi electric City Multy
AC diagnostic / HVAC Installation/ Hyper Heat/ AC Repair
AC installation/HVAC repair/ HVAC maintenance
Mitsubishi City Multi 18k BTU wall mounted indoor unit installation
AC system/ HVAC Installation/ AC Repair
Four 12K single zone ductless Mitsubishi systems installed
Mitsubishi City Multi 48K BTU outdoor unit installed
AC installation/HVAC repair/HVAC maintenance/ Mini split
Why People Choose Us
From warranties to seasonal offers, we keep things simple — you always know what’s covered, what’s included, and how to save.
I had a big problem in my mechanical room/ boiler room of my commercial building as it did not have fresh air intake. I call many companies and they could not help me because of the complexity of the job. Dan is the only one that took the time to design an investigate and find a solution. I know he was busy with other work but still helped me with my project. They showed up on time, updated me daily, left everything clean and in order. Thank you Den for your professionalism.
Working with Den at DUBO HVAC has been a dream. The first issue we had, he was out here the next day. We had an unrelated issue months later and when I called, he told me he could be here in a couple hours. Prices are affordable and he's an awesome person to work with!
