“Came on time. Very efficient. Provided a detailed list of the services provided and described the condition of the HVAC system.” – Patrick M.

“Josh went way beyond in completing this job- my unit is in better shape than ever before.” – Beth B.

“As always, great service and an incredible staff. We would never use anyone else.” – James T.

January 3, 2022

*When calling during or after a big storm, we ask you to please leave only one message with your name, contact info, and your reason for calling.

December 23, 2021

New Trane Heat Pump, Trane Air Handler, and Trane Thermostat! Every year, O'Brien Service Company donates a Trane heat pump, Trane air handler,

December 2, 2021

O'Brien Service Company owner Jimmy Williams was born and raised in Wilmington, His dream was to one day work for GE as a machinist. Instead, he was

Proudly Serving the Wilmington, NC Area Since 1981.

Defrost Cycle