Three J's Heating & A/C Corp.

Three J's Heating & A/C Corp. holds a perfect 5.0-star rating across 12 verified reviews, positioning them as a leading air conditioning contractor in East Hampton, New York. This family-run business serves residential and commercial clients throughout the East End of Long Island, spanning from Montauk to Southampton. The company operates with full licensing and insurance, and maintains mold certification for emergency water damage response. Their physical location sits at 542 Montauk Highway in Amagansett, with service hours extending to 24/7 availability for emergency calls.

What distinguishes Three J's from other Long Island HVAC providers is their proprietary Smartseal division, which they founded to advance energy efficiency in heating and cooling installations. The company has partnered with mechanical engineering firms and Aeroseal to develop duct-sealing technology that reduces energy costs while improving indoor air quality. Their Smartseal services address duct leakage, a common issue that allows pollutants to enter living spaces and forces HVAC systems to work harder. Additionally, the company provides comprehensive new construction services including HERS ratings, blower door testing, and duct leakage testing required for certificate of occupancy permits.

Customer reviews consistently highlight technician Jorge by name, with one reviewer noting his expertise and integrity across multiple service calls spanning over two decades. Beth Distefano described a scenario where the team arrived within two hours of her call and returned the next day to complete the work, explaining each step. David Robbins praised their ability to perform a condenser and coil replacement on very short notice during the busy summer season, while Bryon Carr specifically noted the team performed only necessary repairs without attempting upsells.