Ready to clear your to do list?

Have no fear, J. Dias is here! We are reliable, trustworthy and skilled at what we do. We focus on serving residential clients all over Massachusetts and New Hampshire. We also take on light commercial work as well. From AC repairs to boiler replacements, we can do it all. We have impeccable customer service. Get in touch now for a free consultation.

Our
Services

  • Decks and Patios icon

    HEATING NEEDS

    We specialize in installing boilers, combi boilers, furnaces, and diagnostics.

  • COOLING NEEDS

    We handle installation of mini split systems, diagnostics and A/C recharge. Also, we handle all repairs and refrigerant leaks.

  • Custom Additions icon

    PLUMBING NEEDS

    Bathroom remodels and bathroom additions are services we excel at.

GET IN TOUCH

Our
Projects

  • Oranssi project: studio shed

    BASEMENT BATHROOM ROUGH PLUMBING

  • Oranssi project: roof expansion

    ELECTRIC FIREPLACE INSTALLATION

  • Oranssi project: wraparound deck

    AC CONDENSOR

  • Oranssi project: passive house

    AC CONDENSOR

  • Oranssi project: slat roof

    COMBINATION BOILER

Master Plumber in New England for 30 Years

J.Dias has been in business for almost 30 years and we have delivered nothing but top notch excellence. There’s no job we can’t do as we’ve seen it all. We take the stress out of your day so you don’t have to worry. We’re professional and committed to incredible customer service. We look forward to working with you and helping you achieve your dreams.

What Our Clients Say

  • "Jon and his team were very professional, quick and affordable. Would highly recommend this company to anyone needing a master plumber with expert skill and fair prices. 10/10""

    Janelle Draper

  • "I don’t usually write reviews, but this is an exception. It’s so hard these days to find good, reliable, affordable work, and Jon really did an amazing job, working in tough conditions in our very old (300 year) home, and all for a very fair price. He replaced our outdated oil heating system with a combi boiler. Heating our home is much more efficient now. Can’t say enough, I highly recommend!"."

    Mikael Cejtin

  • "Have used J Dias plumbing services many times always receiving excellent work. Jon and Tom are very personable. Their work is excellent. Used multiple times in emergency."

    Debra R.

Our
Team

  • Jonathan Dias

    Founder & Master Plumber

  • Deborah Dias

    Founder & CEO