Contact Us
Proudly serving the Wilmington, NC area since 1981.

Advanced Online Solutions

Our service comes packed to the brim with tons of amazing features.

What We Do



We have a service team with multiple technicians that can handle all levels of repairs from checking fluid levels or replacing filters to replacing compressors or coils.

Learn More


When your system is beyond repair or just not worth the cost of repairing it any more, we can help you with different options for affordable and efficient replacement.

Learn More


Join the O’Brien Energy Savings Club and get started on a preventative maintenance plan for as little as $12.95 per month.

Learn More


heating pic


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

Read More
air quality solutions

Air Quality Solutions

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

Read More
heat pumps

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

Dorothy & Frank C.

“I have used O’Brien Service Company for two decades and their service, including the most recent service call yesterday, is and continues consistently to be responsive, prompt, highly competent, friendly and fairly priced. I have no reservations whatsoever in endorsing and recommending them for heating and cooling needs.” –Dorothy & Frank C.

Roy B.

“100% satisfied with your excellent employees, their work, the price, and the peace of mind in dealing with a company that stands behind their work and products.” –Roy B.

Margaret M.

“I want to thank Maurice V and Chris for doing an excellent job on my heating and cooling unit. They were very professional and pleasant. Maurice explained what he and Chris were doing to the heating and cooling unit. I like that they cleaned up whatever material fell on the floor, if it was large or small.” –Margaret M.

Hamilton H.

“Quite competent, efficient, personable, and technically knowledgeable. Your training program sets you apart. Left nothing to chance. Thanks. Money well spent.” –Hamilton H.

Susan J.

“The O’Brien Team was very professional and honest from day one. I did have other companies give estimates, but there was a world of difference in their delivery. I got exactly what I was promised. Dave gave me wonderful $$saving ideas, and he spent time necessary to make sure I understood everything. Mark and assistant worked about 8 hours, also making sure I understood everything, as well as double-checking their work. There were no surprises. I will definitely use this company again, and I highly recommend you do, too.” –Susan J.

Charles L.

“Trace B was a very efficient and professional person. Arrived on time and completed task in minimum time.” –Charles L.

Sandy W.

“Excellent service from start to finish. Mike R. answered all of our questions knowledgeably and was always on time for appointments. Toby and David did a great job on the installation of new split heat pump. Very pleased and will continue to use this company in the future.” –Sandy W.

Leave us a Review!

Connect With Us

Don't forget we're collecting donations for the Food Bank of Central and Eastern NC all this month! During your service call give the technician a food item and we'll take $10 off your repair or diagnostic bill! Help us help those in need this holiday season. ...

View on Facebook

Did you miss Jimmie on WECT's business break this week? No worries, we have the video right here for you! ...

View on Facebook

New Financing Offer
15 months 0% interest on qualifying Trane Systems
Visit our website for more details:

View on Facebook