About Us

At United Precise Mechanical LTD, we pride ourselves on being the best heating and cooling service in Long Island, bringing unmatched expertise and dedication to every project. As a third-generation family business, our roots in the HVAC industry date back to 1928 when our grandfather pioneered air conditioning mechanics in the New York metropolitan area. From the early days of central air installation in the 1950s to today, we’ve consistently led the way in providing innovative heating and cooling solutions.

Since 2010, we’ve built a strong reputation as the best air conditioning and heating service in Long Island, installing over 2,000 ductless mini-split systems, along with hundreds of central air conditioning systems and tankless boilers. Our full-service offerings include everything from installation and yearly maintenance to cleaning, repairs, and system surveys. Whether you need central air, ductless mini-splits, gas furnaces, boilers, or tankless systems, we’ve got you covered.

As the one of the best heating and cooling services in Long Island, we carry and service all major brands, including Mitsubishi, Carrier, York, American Standard, Fujitsu, and Navien. Our deep experience and commitment to quality make us your go-to heating and cooling contractor in Long Island, trusted by homeowners and businesses alike to keep their systems running smoothly year-round.