Proudly serving the Wilmington, NC area since 1981.

  • Energy Savings Club
  • Financing
  • Employment
  • Geothermal Heat Pumps
  • Trane Comfort Specialist

What We do



Having the right heating system in your home can make all the difference Read More

Air Quality

It’s a fact-the air inside your home could be up to five times more polluted Read More

Heat Pumps

A heat pump is an efficient way to cool and heat your home
Read More

Air Conditioning

When it comes to keeping your home comfortable through those hot summer Read More

What Our Customers Are Saying

Lynnette D.

“Sean L. Was on time, friendly, professional, and knowable. Sean L. Spent the time he needed to spend not too much not too little. Great job. Thanks for your continued service.”

Don F.

“Maurice was prompt, efficient, knew his equipment and very pleasant to have do the job. A credit to O'Brien.”

Tom B.

“O'Brien Service Co. is a first class co. Dependable, knowledge and efficient. I highly recommend this company.”

Michael P.

“Professional Communication. Detailed Quotation. World Class Installation. Timely Follow-Up. I Felt Like They Cared From Start to Finish. Ran Like A True, Great Family Business.”

Susan H.

“Josh is an outstanding young man. He was professional, courteous and thorough. I hope he's the technician who comes back to my house the next time. Good job!”

Noreen & Alan S.

“Toby was excellent! Very efficient. Gave us some recommendations for HVAC options when replacement needs arise. We're very happy to have chosen O'Brien for all of our service needs.”

Linda B.

“Matthew B. was my technician that came to do my annual inspection. He went about doing his job while answering any questions I had. I have a faked wall around my inside unit. He removed the wall without getting flustered even with me wanting to be so helpful :) . I cannot say enough good things about Matthew or O'Brien's Service Company. I love my unit it does everything plus more than I expected.”

Justin D.

“We had an after-hours call on New Year's. Chris was the tech that showed up about twenty minutes after we had called in. He was polite personable and he even put booties on when he entered the house. I could not have asked for better service. Thank you”

Rafael S.

“The salesman David G. was outstanding! Very knowledgeable, informative, and personable. He made everything simple and smooth for us. An investment well worth it.”

Verl A.

“This was my first time using O’Brien and I was very impressed with their response time and knowledge of our system. The technician, Trace, was very thorough, and although this visit was a system planned maintenance request, he fixed a problem with the condensation drain that I would never known about. I highly recommend the O’Brien Service Company.”

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