While schools, office buildings, data centers, hospitals, retail stores, and industrial complexes in Nassau County all operate very differently, they share one thing in common—they all need heating, ventilation, air conditioning, and refrigeration. Significant losses of productivity and profit could result if critical equipment breaks down.

No matter what type of business you run, AFGO Mechanical Services is here to help keep your commercial HVAC system up and running. We provide equipment retrofits, replacements, maintenance, repair, and 24-hour service throughout Nassau County, including Freeport, Mineola, Hempstead, Westbury, and South Farmingdale. We place a strong emphasis on customer service and meeting your every need.

For high-quality commercial HVAC services in the greater New York metro area, please contact AFGO at (718) 478-5555.

emergency hvac

Commercial HVAC Replacement & Retrofitting

Your building undoubtedly presents some unique challenges for your heating and cooling equipment. If it’s not living up to your standards, it could be time for a commercial HVAC replacement. AFGO has you covered. Our turnkey solutions ensure the best long-term performance of your new equipment at the lowest possible operating cost.

Sometimes, a redesign and retrofit can get the job done, saving you money compared to a complete replacement while still delivering optimal results. Some of the benefits include energy savings, prolonged equipment lifespan, improved comfort, and the ability to adapt to changes in your building’s infrastructure—all for a cost-effective price that speeds up your ROI.

Please contact us today for more information about HVAC replacement and retrofitting services in Nassau County

Commercial HVAC Maintenance in Nassau County

How well have you kept up with preventive maintenance for your HVAC equipment? If you’re looking for a reliable company to complete the work, AFGO can help. We are one of New York’s leading providers of preventive HVAC maintenance. We don’t merely fix the issues with your equipment—we take steps to prevent future breakdowns and keep your system humming smoothly for many seasons to come.

We provide maintenance for the following commercial HVAC equipment:

  • Rooftop HVAC units
  • Water-cooled units
  • Split systems
  • Air handlers
  • Cooling towers & chillers

Consider signing up for a customizable, preventive maintenance agreement from AFGO to maximize your benefits.





“Very fast turnaround on getting a tech to repair our office air conditioner even during one of the
hottest weeks of the summer. Worked with their rep Victoria who was a pleasure to work with and
very responsive to emails.”


— David T.

Commercial HVAC Repairs in Nassau County

When your business relies on heating and cooling to function correctly, a breakdown could bring operations to a grinding halt. To prevent lost revenue and damaged inventory, you need commercial HVAC repair—and fast! AFGO is here to serve you with emergency repairs available 24 hours a day. We can service all HVAC equipment, regardless of the style, age, or type. Our technicians have experience with the following brands:

Baltimore Air Coil
Marley Engineered Products
York & more!

For fast, reliable commercial HVAC repairs in Nassau County, please call AFGO at (718) 478-5555.

Nassau County Commercial Refrigeration Services

Many industries require refrigeration for daily business operations, including hospitals, schools, restaurants, grocery stores, and others. When your equipment needs maintenance, repair, or replacement, AFGO Mechanical is here to help. We listen to your needs and deliver the services you require with outstanding results.

We offer the following commercial refrigeration services:

  • Preventive refrigeration maintenance and custom maintenance plans
  • Refrigeration repairs and 24-hour service
  • Refrigeration replacement and retrofitting

Choose AFGO for all your commercial refrigeration needs. To request services in Nassau County, please contact us.


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HVAC Services for Computer Rooms in Nassau County

Arrange Commercial HVAC Services in Nassau County

If your business is in a high-tech industry, you may count on servers, data storage systems, and networking equipment to keep up with daily tasks. In fact, you may have entire rooms devoted to these operations, requiring specialized cooling, air quality, and humidity control solutions. Robust, redundant systems are essential for protecting your IT equipment.

That’s where AFGO comes in. We can assist with your building’s HVAC needs to keep your mission-critical systems up and running. Our services include:

  • Computer room and data center HVAC maintenance
  • Computer room HVAC repairs and 24-hour service
  • HVAC retrofits and replacements in computer rooms
  • Energy management services for computer room

To request computer room HVAC services in Nassau County, please contact AFGO.

After three generations and nearly 100 years in business, AFGO Mechanical Services has perfected the art of delivering excellent customer service in the HVAC industry. We strive to ensure consistent, reliable performance from every comfort system in your building. In fact, we won’t deem the job complete until you’re happy with the results.

To discuss your HVAC service needs in Freeport, Mineola, Hempstead, Long Island, Westbury, or South Farmingdale, please contact us at (718) 478-5555.

Everything you need to know about your HVAC system

At AFGO, we don’t believe in one-size-fits-all HVAC systems…
we succeed by providing our customers with alternative HVAC solutions.

Click below for a downloadable guide

HVAC & Refrigeration Manufacturers

Industries We Serve

AFGO’s unparalleled commercial HVAC expertise, extensive engineering capabilities, and uncompromising work ethic are just part of the formula that enables us to grow with no end in sight. Our pride in excellence and a sense of urgency second to none sets us apart from our competitors. This work ethic has afforded us the opportunity to do business with many of the nation’s most prestigious retailers with flagship stores in Manhattan along with New York City’s top management, institutional, hospitals, healthcare, and much more…

Commercial Office Buildings

Luxury High-Rise Residential

Hospitals & Healthcare Facilities

Assisted Living Facilities

Biomedical Facilities

Hotel & Hospitality Groups

Property Management Firms

Banks & Financial Institution

Multi-Site Facilities

Retail Operations

Private & Shared Office Spaces


Educational Institutions

Movie Theaters & Museums

Computer/Data Center Cooling

Warehouses & Factories

Houses of Worship

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Service Area

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