Proudly Serving the Wilmington, NC Area Since 1981.



In-Home Evaluation For HVAC Replacement

Time to replace your heating and air system? O’Brien Service Company offers complimentary in-home evaluations. Watch this video to learn what to expect when an O’Brien Design Specialist visits your home and why it’s important.

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Join The Energy Savings Club

Receive Annual Maintenance Plus Other Benefits


“Just as a tune-up for your car can improve your gas mileage, a yearly tune-up of your heating and cooling system can improve efficiency and comfort.”EnergyStar


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Aiden K. (Wilmington 28401)
Tom was great! He suggested an alternative system which worked out perfectly and is very energy efficient. The Techs were very nice and though I wasn't satisfied with a few small installation items at first, O'Brien almost immediately sent out another Tech and remedied the situation. Great response.” -Aiden K. (Wilmington 28401)
Allan B. (Southport 28461)
“Easy to work with. Dependable and on time. Used them after disasters with other local HVAC companies. Will only use O'Brien in the future.” -Allan B. (Southport 28461)
Jennifer S. (Wilmington 28403)
“Josh R. was very courteous, professional and went beyond the call of duty. I was very pleased with his services.” -Jennifer S. (Wilmington 28403)
Mihailo D. (Wilmington 28405)
“Technician was highly qualified and experienced. Before I retired I spent 40 plus years in HVAC. The tech performed the tasks and answered my questions clearly and left me with a high degree of confidence that I was talking to someone well trained and qualified. He and the company are a keeper!” -Mihailo D. (Wilmington 28405)
Andy C. (Wilmington 28401)
“Got our 20 year old system removed and replaced in less than a week from the time we called. Super easy and was able to finance at 0% for 5 years. Highly recommend O’Brien’s.” -Andy C. (Wilmington 28401)
Anthony D. (Ocean Isle Beach 28469)
“William B was the service tech, knowledgeable and helpful. Did a great job and I look forward to working with them over the years.” -Anthony D. (Ocean Isle Beach 28469)
Bill D. (Leland 28451)
“Our tech, Jim Z, was very thorough and professional. He is very knowledgeable about our residential HVAC system and offered great advice. Highly recommend O’Brien.” -Bill D. (Leland 28451)
Mike D. (Wilmington 28409)
“Our heat went out on our 7 year old Trane with impending cold and rain. O'Brien swept in and got things working just in time so that we stayed cozy and warm through the bad weather. They even worked with an umbrella overhead to get the job done! Seriously, excellent work, dedication, and top notch customer service. I know I can always rely on O'Brien!” -Mike D. (Wilmington 28409)
Jeffrey N. (Leland 28451)
“Will was awesome! Very knowledgeable and honest. I am very happy that I went with O’Brien over the other companies. Will, and the company, made the whole process painless. Highly recommend!” -Jeffrey N. (Leland 28451)


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2019 Wrap Up- O’Brien Service Company

2019 is over and a new year is here.  We wanted to highlight some of the remarkable events, moments, and achievements of our company in 2019. Giving

Defrost Cycle Signs

Our office frequently receives phone calls from alarmed customers during cold mornings regarding their heating system not operating properly. 

Comfort for Christmas 2019

Update: Congrats to Crystal and her family on winning a new HVAC system!  Enjoy the years of comfort :) O’Brien Service Company is once

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