O'Neil's Heating & Air Conditioning LLC
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Claim This BusinessAbout O'Neil's Heating & Air Conditioning LLC
O'Neil's Heating & Air Conditioning LLC has earned its reputation as Smithfield's most reliable climate control provider since its founding. With an exceptional 4.9-star rating gathered from 227 verified client reviews, this locally owned contractor operates under North Carolina HVAC license credentials. The team serves homeowners throughout Johnston County and surrounding communities including Selma, Clayton, and the nearby Garner area. Their weekday availability from 7 AM to 5 PM accommodates standard scheduling needs, while their documented same-day emergency response capability provides peace of mind during extreme seasonal conditions.
What distinguishes O'Neil's from competing contractors is their commitment to transparent customer communication and owner-operated service delivery. Owner Paul O'Neil personally handles diagnostic calls rather than delegating initial assessments, a practice reviewers consistently praise for thoroughness and accountability. The company offers a renewable maintenance program designed to prevent system failures before they occur. Their service philosophy centers on presenting every available option to customers without pressuring upsells, allowing homeowners to make informed decisions about repair versus replacement investments.
Customer stories from Smith's directory highlight the team's dedication to responsive service. When David Eakes' air conditioning failed during a warming spell, O'Neil's scheduled same-day arrival while competitors quoted multi-day delays. Paul O'Neil conducted the diagnosis personally, sourced the required part from their supplier, and ensured complete system functionality before concluding the visit. Christopher Stein experienced similarly rapid response when his cooling failed, with technician Brandon leading an efficient installation crew that provided continuous status updates throughout the replacement process. Marlin Monville received Monday morning service after sending a Sunday text inquiry, with the team declining payment when the issue originated outside their system.
What Customers Say
Every reviewer awards five stars, with six of six featured customers specifically praising the company's honest communication and diagnostic transparency. Three reviewers highlight same-day or next-day emergency response times, while two mention owner Paul O'Neil's direct involvement in service calls.
Working Hours
| Sunday | Closed |
| Monday | 7 AM–5 PM |
| Tuesday | 7 AM–5 PM |
| Wednesday | 7 AM–5 PM |
| ThursdayToday | 7 AM–5 PM |
| Friday | 7 AM–5 PM |
| Saturday | Closed |
Services
Air Conditioning Repair & Maintenance
Same-day emergency response for failed cooling systems. Technicians diagnose issues thoroughly and present all repair options before proceeding.
Heating System Service
Winter heating repairs and furnace maintenance for Johnston County homes. Annual tune-ups help prevent mid-season failures during cold spells.
HVAC Installation & Replacement
Full system replacements with estimated timelines. Crew members provide continuous status updates throughout installation processes.
Preventive Maintenance Program
Renewable service plans designed to catch developing problems before they cause system failures. Multiple reviewers enrolled after initial service.
Diagnostic Assessment
Owner-conducted evaluations ensuring accurate problem identification. Paul O'Neil personally manages diagnostic appointments rather than delegating.
System Efficiency Consultation
evaluations helping homeowners understand operating costs. Technicians explain efficiency factors without recommending unnecessary upgrades.