3N1 HVAC
Hvac Services
Why pick this one
3N1 HVAC offers flat-rate pricing and free estimates, serving Union County and parts of Mecklenburg County.
Best for
- homeowners needing HVAC repair and installation
- customers valuing transparent pricing
- those looking for local service backed by strong customer satisfaction
Look elsewhere if
- seeking budget options for small repairs
- needing commercial HVAC services
Specialties
- AC repair
- AC installation
- heating repair
- heating installation
- HVAC maintenance
Certifications
- NC Mechanical Contractor License
- South Carolina HVAC License
- NC Commercial Mechanical License
- Limited Electrical License
What makes them different
- $79 flat diagnostic fee
- non-commissioned technicians
- free replacement estimates
- local ownership with the owner answering calls
- transparent pricing before work begins
- Response time
- typically within 1–2 business days
- Serves
- Union County, Monroe, Waxhaw, Mint Hill, Indian Trail
Distilled from this business's own website.
Public records
Permit activity · Union County
14 permits issued by Union County in the 12 months to Oct 28, 2026.
93% residential work.
Mostly: HVAC / mechanical (13), Building (1).
Common work types: Residential Mechanical (12), Commercial Mechanical (1), Residential Generator Fuel Source LP/Natural (1).
Most recent permit: Aug 28, 2026.
Counts only permits issued by Union County.
Source: Union County permit records, as of Oct 28, 2026
Matched to this business from government records by phone, website, name, and address. Spot something wrong? Claim this listing and we'll fix it.
Contact & Location
- Address
- 8220 Old Ferry Rd, Monroe, NC 28110-9458
- Phone
- +17042885930
- Website
- http://3n1hvac.com/
- office@3n1hvac.com
Services
- heating and cooling