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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William H. (Wilmington 28405)
“We have used O’Brien for our HVAC needs for many years and have always found them competent and dependable. O’Brien recently installed a new heat pump as our previous one needed significant work. Matt came, gave us an estimate and within a week the new system was installed. Matt was easy to work with as all O’Brien employees were during the installation. We highly recommend O’Brien.” -William H. (Wilmington 28405)
Marie K. (Riegelwood 28456)
“Live in hot humid climate, new install. They did not just sell me a unit, they ckd every conceivable problem including placement of home in relationship to sun. Installation was perfect, employees perfect work ethic. Have maintenance agreement, they notified me when I was due. Gentleman that came on time,& helped me out with filters I am a sr. Citizen & would recommend this company without thinking twice. One may pay a bit more, but the quality from product to employees is well worth it.” -Marie K. (Riegelwood 28456)
Anthony C. (Wilmington 28411)
“Larry is my go to guy at O'Brian. He's through and always explains what service he is doing and why. My HVAC system has never worked better and it's 14 years old! Thank you Larry.” -Anthony C. (Wilmington 28411)
Doug S. (Wilmington 28409)
"Annual Maintenance Visit Josh arrived on time and clearly laid out the expectation of the annual maintenance visit. He also asked if we had any questions or concerns which I described. He not only addressed all of our concerns, but he went the extra mile to make sure we were completely satisfied before he departed. We have been extremely happy with the O'Brien Team for the past several years."   -Doug S. (Wilmington 28409)
Dana M. (Leland 28425)
“Matt was great and so far everything is still working fine. He was professional and personable and explained everything he had done and was doing. Thank you, so much.” -Dana M. (Leland 28425)
Deborah I. (Wilmington 28409)
“Glad they could assist us with our thermostat issue! would definitely recommend this company!” -Deborah I. (Wilmington 28409)
P. R. (Wilmington 28405)
“Every single person I dealt with at O'Brien's was delightful. I got helpful greeters who led me to my quote, the advance team, the installers, the after visit, and the stand-in for the inspector. I can't say enough good about this company. And we made it something that was within our budget. Thank you O'Brien's.” -P. R. (Wilmington 28405)


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Comfort for Christmas 2020

It’s been quite a year and to end it on a high note, O’Brien Service Company is giving away a Trane unit.  Nominate yourself or a family in need of a

How To Keep An Efficient HVAC System

The weather is getting colder for New Hanover, Brunswick, and Pender counties. Cooler temperatures can affect your HVAC system!  We cannot stress

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