Marquis Plumbing and Heating provides expert residential and commercial mechanical services across Queens, Brooklyn, Long Island, and the greater New York City area. With over a quarter-century of hands-on experience, this fully licensed and insured team delivers reliable plumbing, drain cleaning, and high-efficiency heating solutions. The company stands out by training its master plumbers in the latest industry advancements and state-of-the-art building codes. Specializing in modern hydronic heating, boiler upgrades, and water management, they help property owners transition to energy-saving systems. Every project focuses on maximizing system longevity and reducing environmental impact through precise installations. Clients trust their professional staff to handle complex retrofits and routine maintenance with unmatched technical expertise. By prioritizing sustainable water and thermal solutions, they ensure healthier, more comfortable indoor environments.