HVAC Repair & Installation in Duncan, SC
Three Jay Heating & Air provides HVAC service in Duncan, SC, for homes and businesses along the busy I-85 corridor. From AC repair to commercial maintenance and new system installs, we’re close by in Greenville and answer our phones 24/7.
SC License CLM.119055 · Licensed, Bonded & Insured · 24/7 Emergency Service · Phones Answered Locally · All Major Brands
HVAC Services in Duncan, SC
Duncan has a mix of newer neighborhoods and growing businesses, and both need heating and air that keeps up. Here’s what we handle in Duncan.
AC Repair, Installation & Maintenance
When your Duncan AC stops keeping up, we diagnose the real problem, give you upfront options and get it running. New installs and spring tune-ups too.
Heating & Furnace Service
We keep Duncan homes warm with furnace repair, safety checks, fall tune-ups and new heating installs when it’s time.
Heat Pump Services
If your heat pump blows cool in winter or can’t keep up in summer, we’ll find out why. Repair, maintenance and new installs for Duncan homes.
Indoor Air Quality & Ductwork
Leaky or undersized ducts waste energy and leave rooms uneven. We test, seal and repair ductwork and improve ventilation for Duncan homes.
Commercial HVAC
Commercial repair, maintenance and replacement for Duncan businesses, scheduled around your hours when possible.
24/7 Emergency HVAC
No heat on a freezing night or no AC in a heat wave? Call any hour. Emergency calls from Duncan get priority.
Why Duncan Homeowners Choose Three Jay
Duncan has plenty of HVAC options. Here’s why homeowners here call Three Jay Heating & Air.
01
Three Partners. One Promise.
02
Honest Repair-or-Replace Advice
03
Upfront Pricing, No Pressure
04
24/7, Answered Locally
05
All Major Brands
06
Licensed, Bonded & Insured
Ready to schedule HVAC service in Duncan?
Call (864) 774-5495 or book online. You get a clear diagnosis and upfront options before any work starts.
How HVAC Service Works in Duncan
No runaround, no surprise bills. This is how service works for Duncan customers.
1. Call or book online. Call (864) 774-5495 or use our contact form. Tell us what's going on and we'll give you an arrival window.
2. We diagnose. A technician tests the system and finds the actual cause. The diagnostic fee is $89.
3. Upfront options. We explain what we found and give you choices with prices. You decide, with no pressure.
4. Done right. We complete the work, test the system and make sure your Duncan home is comfortable before we leave. When comfort matters, experience matters.
HVAC in Duncan: Homes and Businesses on the I-85 Corridor
Duncan sits right in one of the busiest stretches of the Upstate, and that shows in our calls: newer neighborhoods with systems hitting their first big repairs, and businesses that need cooling they can count on for employees and customers.
For homeowners, we focus on getting the basics right: correct refrigerant charge, clean coils and ducts that actually deliver air where it’s needed. For businesses, we offer preventive maintenance and work with your schedule so repairs don’t shut you down.
Duncan is part of our Spartanburg County service area, along with nearby Lyman, Wellford, Greer and Spartanburg.
Lyman, SC
HVAC service in Lyman
Wellford, SC
HVAC service in Wellford
Greer, SC
HVAC service in Greer
Spartanburg, SC
HVAC service in Spartanburg
Not sure if we cover your address? Call (864) 774-5495 and we’ll tell you right away.
Duncan HVAC FAQs
Nearby Service Areas
Do you service Duncan, SC?
Yes. Three Jay Heating & Air provides residential and commercial HVAC repair, installation, maintenance and 24/7 emergency service in Duncan, SC, from our office in Greenville.
Do you offer commercial HVAC service in Duncan?
Yes. Three Jay Heating & Air provides commercial HVAC repair, maintenance and installation in Duncan, SC, including rooftop and split systems.
What does an HVAC maintenance visit include?
A maintenance visit includes cleaning coils, checking refrigerant, testing electrical parts and capacitors, checking airflow and safety controls, and replacing the filter if needed. You get a summary of anything that needs attention.
Should I repair or replace my HVAC system?
It depends on the system’s age, repair history and the repair cost compared with its remaining value. We give you both options with upfront prices.
Do you offer emergency HVAC service in Duncan?
Yes. Three Jay Heating & Air offers 24/7 emergency heating and air conditioning service in Duncan, SC. Call (864) 774-5495 at any hour and a local person will answer.
What is your diagnostic fee?
Our diagnostic fee is $89. It covers a technician finding the cause of the problem in your Duncan home and walking you through repair options before any work begins.
Do you offer HVAC financing?
Yes. Financing is available for qualified customers. Ask about current options when you call or during your free installation estimate.
Is Three Jay Heating & Air licensed in South Carolina?
Yes. Three Jay Heating & Air holds South Carolina license CLM.119055 and is licensed, bonded and insured.
Need HVAC Help in Duncan?
Home or business, if you need HVAC help in Duncan, call the local team that answers its own phone.