Serving Tyngsboro for Over 20 Years

J. Dias Plumbing & Mechanical was founded with a simple mission: deliver honest, high-quality plumbing and mechanical services to the families and businesses of Tyngsboro and the surrounding Merrimack Valley communities.

Over two decades, we've built our reputation one job at a time — showing up on time, communicating clearly, and standing behind our work. Whether it's a dripping faucet or a full commercial mechanical system, we bring the same level of care and expertise to every project.

We're proud to be a local, family-run business. When you call J. Dias, you're talking to someone who lives and works in this community — not a call center.