Family Roots. Trade Expertise. Since 1988.

At MJ Plumbing Heating and Cooling, family isn't just a value—it's how we built this company. We've served Westchester County and surrounding areas since 1988. Founded by Michael J. Segreto, we've grown from a small plumbing operation into a trusted residential and commercial plumbing and HVAC company - still family-owned, still hands-on.

Michael came from a family of automobile workers and started his career as a mechanic. After several years turning wrenches, he realized his true calling was in the trades - specifically plumbing. With encouragement from his father, Michael earned his plumbing certification and began building MJ Plumbing from the ground up.

In the early days, Michael partnered with his friend Jonathan - creating the "MJ" name. When that Jonathan moved to Arizona, Michael's son, also named Jonathan, stepped into the partnership role, keeping the MJ legacy alive.

Jonathan Segreto joined MJ full-time in 2014 after attending college, bringing a fresh vision for the business. He focused on modernizing operations, embracing digital tools, and expanding into full HVAC Services. Today, Jonathan is a licensed Master Plumber in Westchester County and Connecticut and leads day-to-day operations alongside his father. Under his leadership, MJ has grown into a full-service residential plumbing and HVAC company while keeping the personal touch customers have trusted for over 35 years.

We provide residential and commercial plumbing services, drain cleaning and video inspection, water main and sewer line replacements, plumbing renovations and new construction, water filtration systems, HVAC service, maintenance and installation, and 24/7 emergency service.

At MJ, we believe the way we do business matters as much as the work itself. Our company is built on family, trust, quality, professionalism, and accountability. We treat every home like it belongs to our own family, communicate honestly, and stand behind every job.

Our family's commitment to homes doesn't stop at service. Jonathan also leads the MJ Home Team by Keller Williams, helping clients buy and sell homes across Westchester and Fairfield Counties. Learn more at themjhometeam.com.