O'Brien Service Company

Air conditioning repair service
4.9(1,380 reviews)
5516 Business Dr, Wilmington, NC 28405
O'Brien Service Company

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About O'Brien Service Company

O'Brien Service Company has kept Wilmington-area homes comfortable since 1981, making it one of the longest-operating family-owned HVAC contractors in southeastern North Carolina. With 1,380 reviews averaging 4.9 stars, the company has earned a reputation that extends beyond New Hanover County into Shallotte and as far south as Myrtle Beach, South Carolina. The business handles residential and commercial projects across heating, cooling, plumbing, and electrical trades, operating Monday through Friday until 5:30 PM with Saturday hours until 4 PM.

What distinguishes O'Brien from regional competitors is their multi-trade capability under one family-owned roof, a rarity in coastal Carolina where most contractors specialize in a single trade. As a Trane dealer, they install and service one of the industry's most recognized HVAC brands, but their expertise extends to ductless systems, geothermal heat pumps, and indoor air quality solutions including zone control systems. The company maintains active community involvement through programs like Comfort For Christmas and Subs For Service Giveaway, demonstrating roots that run deeper than commercial interest.

Customer reviews repeatedly name the technicians who made the difference. Mary Avery's full HVAC replacement took a day and a half, with owner Michael Russell personally following up afterward to ensure satisfaction. When Matt Hempson needed dryer vent cleaning, Jeremy spent extra time confirming both the vent and dryer were completely lint-free. Christine Leahy praised technician David Bettencourt for prompt, skilled kitchen repairs, while Pegeen Michaels highlighted salesman Kris who measured her entire home's square footage before presenting options, a level of detail that earned her confidence in the installation that followed.

What Customers Say

All five sampled reviewers awarded 5 stars, with each mentioning a specific technician by name: Michael Russell (follow-up visit), Jeremy (dryer vent cleaning), David Bettencourt (kitchen repairs), Kris (sales consultation), and Chris (detailed estimate with square-footage measurement). Common themes across reviews include thoroughness, professionalism, and post-installation follow-through that exceeds typical contractor behavior.

4.9 · 1,380 reviews
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Working Hours

SundayClosed
Monday8 AM–5:30 PM
Tuesday8 AM–5:30 PM
Wednesday8 AM–5:30 PM
ThursdayToday8 AM–5:30 PM
Friday8 AM–5:30 PM
Saturday8 AM–4 PM

Services

HVAC Installation & Replacement

Complete heating and cooling system installation using Trane equipment, including traditional split systems, ductless mini-splits, and geothermal heat pumps.

AC Repair & Maintenance

Air conditioning diagnostics, repair, and preventive maintenance to keep systems running efficiently through Carolina summers.

Heating & Heat Pump Services

Heat pump installation and repair, including geothermal systems, plus traditional heating equipment maintenance.

Indoor Air Quality

Air duct cleaning, zone control systems, and solutions for improved breathing air throughout the home.

Plumbing Repairs & Installation

Drain cleaning, leak detection, water heater services including tank and tankless units, pipe repairs, and water filtration systems.

Electrical Services

Panel upgrades, EV charging station installation, circuit breaker work, ceiling fans, and whole-home surge protection.

Frequently Asked Questions