About YAS HVAC CORP
Our Background
Founded by Yangklin Sierra, YAS HVAC CORP was built on a technical foundation in transport refrigeration. Before expanding into broader HVAC service, the company operated in the refrigeration sector supporting temperature-controlled equipment in demanding field conditions. That experience shaped the way we work today: diagnose carefully, move efficiently, and complete each job with precision.
As the company grew, YAS HVAC CORP expanded from transport refrigeration into residential and commercial air conditioning, heating systems, and commercial refrigeration. This growth allowed us to bring the same service discipline and field experience to a wider range of customers and equipment.
How We Work
At YAS HVAC CORP, we believe good service starts with a structured process. Every call begins with proper troubleshooting and a clear understanding of the problem before repair or replacement work begins. Our team focuses on practical solutions, transparent communication, and workmanship that supports long-term equipment performance.
Whether the job involves a residential comfort system, a commercial refrigeration issue, or a transport refrigeration unit, our goal is the same: deliver dependable service, maintain operating efficiency, and help customers avoid unnecessary downtime.
What We Service
Heating systems, including furnaces, boilers, and heat pumps
Air conditioning systems, including central AC, ductless systems, and comfort cooling equipment
Commercial refrigeration systems, including walk-in coolers, freezers, and related equipment
Transport refrigeration systems for trucks, trailers, and cold-chain applications
Our Commitment
We are committed to responsive service, consistent workmanship, and solutions that are tailored to the needs of each customer. From routine maintenance and system repairs to full replacements and equipment upgrades, we approach every project with the same attention to detail and service standard.
Service Area
YAS HVAC CORP proudly serves customers throughout Nassau County and Suffolk County, including surrounding Long Island communities.
Fast Response. Accurate Diagnostics. Reliable Results
✔ Fast Same-Day Service
✔ Free Estimates Available
✔ Emergency Repairs
✔ Residential & Commercial HVAC
✔ Licensed & Insured Technicians
✔ Precision Diagnostics & Long-Term Solutions
✔ Financing Options Available
If you need heating, air conditioning, refrigeration, or transport refrigeration service, contact YAS HVAC CORP today to schedule service or request an estimate.
(631) 656-3313
Frequently Asked Questions
What HVAC services do you provide?
We offer heating, cooling, ventilation, air conditioning and refrigeration services for residential and commercial clients.
Do you provide commercial refrigeration services?
Yes. We service walk-in coolers, freezers, refrigeration systems and commercial cooling equipment.
Do you offer HVAC installation services?
Yes. We install and replace air conditioning systems, heating equipment and ventilation solutions.
What areas do you serve?
We proudly serve Smithtown and surrounding Long Island communities.