Sullivan Heating and Cooling, LLC
Orange County & Sullivan County, NY
Generac Generators & Electrical Service Upgrades
Commercial & Industrial
Commercial HVAC/R Repair Services
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RBI Commercial Boiler Services
Installation, Service and Repair

Sullivan Heating and Cooling, LLC maintains a highly trained team of professionals who are equipped to meet your commercial HVAC needs from project planning to long-term maintenance. Whether you built your HVAC system with us or need to keep your existing installation safe and efficient, Sullivan Heating and Cooling, LLC has the expertise you need.

We have successfully completed new HVAC installations for a wide range of customers including, hospitals, universities, gaming resorts and multi housing units.

Industrial & Commercial Heating Services:

Our technicians are experienced with all repairs and maintenance to keep your boilers and furnaces operating reliably. 

RBI offers a complete line of high efficiency cost effective commercial boilers.

Decades of Experience, Skilled Union Workers and the Latest Technology: 

When you call our team at Sullivan Heating and Cooling, expect exceptional service and superior quality every time. 

Services We Provide:

  • Commercial Boiler Repair 
  • Chillers & Cooling Towers
  • Controls
  • Rooftop Units
  • Heat Pumps
  • Make Up Air Units
  • Ductless & VRF Systems
  • Heating Systems
  • Gas Piping
  • Pumps
  • Air Handler's
  • Hydronics
  • Water Heaters
  • Electrical Service
  • Hotel PTAC
  • Refrigeration Services
  • Ice Machine Cleaning, Maintenance & Repair
  • Walk-In Freezer / Refrigerators
  • Rack Cooling

Industries We Service:

  • Senior Living
  • Offices & Retail
  • Multi-Family
  • Industrial & Manufacturing
  • Religious Establishments
  • Healthcare
  • Hospitality & Tourism
  • Financial Institutions
  • Gaming Facilities 

Get Factory Certified Maintenance with Fast Response Times.

Minimize Your Service Calls and Downtime.

PA - 570-445-3460
Sullivan Heating and Cooling, LLC.
Your Local Air Conditioning, Heating, Refrigeration and Electrical Experts
​497 Broadway
Monticello, NY 12701

NY Phone: 845-588-5433​ 
PA Phone : 570-445-3460 

Operating Engineers Local 30 in NY
Same Day Affordable Service
Heat ExchangerStainless Steel Firetube Heat Exchanger
Size Range850 - 6,000 MBH
AHRI Boiler Efficiency96.8%*
TurndownUp to 10:1*
ApplicationVariable Volume, Full Flow, Primary / Secondary
FlexCore Symmetrical Firetube boilers bring hydronic heating products to unprecedented levels of operating efficiency.

Unlike other manufacturers; from start to finish the FlexCore was designed, developed and engineered by the experts at RBI.

Engineered for performance and longevity the FlexCore utilizes a perfectly temperature balanced heat exchanger that provides not only the highest efficiencies but also a durability beyond that of any competitive firetube boiler on the market.