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Dempsey Energy

If we are fortunate enough to have you as a customer, we will treat you like you should be a partner in ensuring your property is cared for properly. We will work with you to meet your needs and requirements. We will not stop trying harder for you and doing all we can to foster this partnership.
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Dempsey Energy is an owner operated family business providing Heating, Air Conditioning, and Plumbing Energy Services to customers in Eastern Massachusetts and Rhode Island. We offer installation, repair, maintenance and service plans for furnaces, boilers, central air, ductless Air Conditioning and Plumbing. In addition we offer Energy services where we deliver heating oil, assess home energy loss and offer energy saving products. Our customers range from home owners to restaurants to business offices with each customer receiving personal, quality, reliable and affordable service from our certified and licensed staff.

When choosing a long-term company to take care of your home or company's Heating, Air Conditioning, Plumbing, Oil Delivery or Energy Savings, it's important to work with a company that cares for your property as it were their own. You want a company that keeps a service history and know the in and outs of your system. Often finding service provider is reactionary mode (addressing emergency calls), rather than being proactive. We sit with you to understand your individual needs, and then present a you with multiple options to address needs, concerns and problems.

Dempsey Energy looks forward to working with you. Call, email, use our contact form or fill out a Free Estimates form to get started today!
Year Established
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Services Offered

  • Installation
  • Plumbing
  • General Contracting

Workmanship Warranty





Fully Insured


Mitsubishi, Fujitsu, LG, Trane, Goodman, Lochinvar Knight Boiler, Viessmann Boiler, Triangle Tube Challenger,

What Customers Are Saying

1 review
Average Rating 1 review(s)
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Worst customer service

Had Dempsey come out to fix our HVAC issue - they charged us $300 to diagnose the problem and did not fix anything. I called because I had not received an invoice and to see what was done while the tech was even here. The rep Nicole who I spoke with was not helpful, extremely rude to the point that she was talking over me and raising her voice. I’ve never had customer service hang up on me! Your job is literally to answer my questions as a customer. Worst customer service and would never use them or recommend them!!!

Posted by sjbranco5 on Nov 25, 2022



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