Arenz Heating & Air Conditioning Corp.

Since 1998, we’ve proudly served Eastern Long Island with heating and cooling solutions for homes and businesses. Based in Quogue, our team includes more than 40 skilled professionals with over 170 years of combined HVAC experience. We handle projects of many sizes, from minor repairs and residential system upgrades to new construction, renovations, and large commercial installations. Much of our work comes through customer referrals, and we value the trust that those relationships represent.

We specialize in geothermal heating and cooling systems, providing installation, repair, and maintenance services throughout Eastern Long Island. For new installations, we assess the property and design a system around its specific heating and cooling needs. We also diagnose and repair geothermal equipment, service all geothermal heat pump models, and perform routine maintenance such as system checks, component cleaning, and performance optimization. Our goal is to help each system operate efficiently and provide dependable comfort throughout the year.

Our broader HVAC services include furnace installation, repair, replacement, and ongoing maintenance, along with solutions for air conditioning and dehumidification. We service all major makes and models. When installing new equipment, we focus on proper system design, efficient setup, and lasting performance. When existing equipment develops a problem, we work to identify the cause, explain the process clearly, and restore operation as promptly as possible.

Preventive care is also an important part of what we do. Our tune-ups include inspections, cleaning of vital components, checks for developing issues, and adjustments intended to improve performance and reduce unexpected breakdowns. We offer seasonal maintenance plans as well as 24/7 assistance for urgent HVAC repair and service needs. Across every project, we emphasize communication, transparency, careful workmanship, and getting the job done right the first time.