About Us

Originally founded in 1989, Sub Zero Inc. has grown and become the largest HVAC business serving the cooling and heating needs of Key West for more than 34 years. With dependable and reliable service, we have become well known as one of the best HVAC contractors in the Florida Keys. We treat all of our customers with the utmost regard and care, and we value all of our work. We understand the ever-growing costs of trying to efficiently and effectively cool in the Florida Keys and strive to maintain excellence in our profession.

Excellence & Professionalism

We provide quality HVAC services for both residential and commercial properties. We’re experienced in all types of projects, including installation, maintenance and repairs - we handle it all. We’re known for honesty, integrity and providing professional and personal customer service.

Licensed & Insured

Our team of certified HVAC technicians have completed thorough training and are knowledgeable in safety regulations and local building codes. Everyone on our team has passed rigorous license requirements. We do the work right the first time and aim to exceed your expectations.

Personalized Approach

We are your friendly and local HVAC company. Call us for personalized service for your repair, installation or maintenance. We take pride in our work and we want you to feel good in referring us to your family & friends. This starts with trust and hard work to maintain our reputation of dependability.