Plumbing, Oil Services, Heating & AC
Call 24/7 617.997.4310
Serving Heating, Cooling, Plumbing & Energy Needs Throughout Massachusetts

Dempsey Energy in Mansfield

Providing Plumbing, Energy, Heating & AC Service

Let Dempsey Energy take care of all your major systems at home or your place of business. From plumbing to heating and cooling as well as energy services, our local company can handle them all. With over 25 years of serving Massachusetts residents with quality services and products, we have gained a wealth of knowledge on what it takes to keep your home systems functional, reliable, and efficient. Put your trust in our team and there’s no need for you to call any other company to service the individual equipment in your place. We will provide your every need while ensuring your property is cared for properly.

Our experienced technicians are on-call day and night, so you’ll have someone to rely on in times of emergencies. We even come with a fully stocked truck that contains all our tools and equipment parts that may become necessary to complete the job. If you’re worried about the cost of our service, you can rest easy knowing our company offers a variety of pricing depending on the service level you choose.

Request an appointment with our team at Dempsey Energy today!
Contact us at (617) 997-4310 or online.

Our Services

What We Offer
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Full-Service Technicians that You Can Trust

  • Licensed & Certified
    Techs for Your Protection
  • Free Estimates
    on Installations
  • Emergency
    Services Available
  • Offering a Wide
    Range of Services


Fostering a Life-Long Partnership with You

Dempsey Energy is your dedicated service partner. We value your trust, and our team is ready to go above and beyond to help you with all your plumbing, heating, cooling, and energy needs. Each member of our team has undergone extensive training and participates in continuing education to serve you better. We also take the time to explain all your options for repair so you can make informed decisions based on your unique preferences and financial situation.

Our family-owned company has grown so much since we opened our doors in 1992. One thing remains the same: our passion for serving customers like you. Contact us now and let Dempsey Energy show you how we take care of our life-long partners.

Happy Customers Say It Best

  • I have to say their oil service and service plan was wonderful.

    “ I'd like to thank them for treating me wonderfully over the two years I lived in a place with an oil tank. ”

    Mikhaela H

  • I was so grateful to have such a nice guy working here.

    “ I was so impressed with the hard work that Tim put in to get my heat working after the old furnace died. He went above and beyond my expectations! ”

    Debbie C.

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