Needing a repair on your heating and air system is no way to start the Spring and Summer months! A refrigerant leak or a clogged drain line are two
Proudly Serving the Wilmington, NC Area Since 1981.
O'Brien Service Extended O-TEAM Commercial
See the full-length version of our commercial from the Big Game!
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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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“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
FROM OUR CUSTOMERS
Nancy & John J. (Wilmington, 28412)
Rose R. (Wilmington, 28405)
Richard S. (Wilmington, 28409)
Jennifer J. (Hampstead, 28443)
Paul W. (Castle Hayne, 28429)
Melody F. (Leland, 28451)
Sam R. (Wilmington, 28401)
Gary E. (Wilmington, 28409)
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LATEST NEWS

What’s the Difference Between Annual Maintenance and Seasonal Service?
Spring is here in Wilmington, NC. With the cooler weather turning warm, consumers will be switching their heating and cooling systems to AC mode.

What Is Aux and Emergency Heat?
The weather here in Wilmington, NC can drop to below-freezing temperatures. When this happens, your heat pump and air handler have a back-up function