Get in Touch
We're easy to reach. And we actually pick up.
No answering service. No call centers. When you call 3N1 HVAC, you talk to the people who do the work.
Our Promise
Freereplacement estimates
$69flat diagnostic fee
5-Starrated by homeowners
Licensed& insured technicians
Honest HVAC.
No Surprises.
Fair pricing, non-commissioned techs, and an owner who picks up the phone. Serving Union County & beyond.
Contact Information
Reach us by phone, email, or the form.
Address
8220 Old Ferry Road
Unionville, NC 28110
(Some listings show Monroe, NC 28110 — same address)
Hours
Monday – Friday8:00 am – 8:00 pm
Saturday9:00 am – 5:00 pm
SundayClosed
Service Area
We serve Union County and parts of Mecklenburg County, NC. Not sure if you're in our area? Give us a call and we'll let you know.
View full service areaSchedule a visit or ask a question.
[Client to embed Google Maps here — 8220 Old Ferry Road, Unionville, NC]