HVAC Repair in Round Rock, TX78664
Arctic Air Heating & Cooling dispatches licensed, insured heating and air conditioning technicians toRound Rock and the 78664 ZIP code 24 hours a day, 7 days a week. Target response time in this service zone: 60-90 minutes.
Nobody in Round Rock wants to spend a day waiting on a technician with a four-hour window. We quote a 60-90 minutes target response time for this ZIP and hold crews locally so that number is realistic.
Talk to a live dispatcher in Round Rock
Serving 78664 and Williamson County — no phone trees, no callback waiting.
- A live dispatcher answers — never a phone tree or an answering service script
- Flat-rate pricing agreed before a single tool comes out
- Licensed, insured and background-checked technicians only
- Common failure parts stocked on every truck
★★★★★5.0 average · 303 verified reviews
- Licensed & Insured Technicians
- Background-Checked Crews
- Upfront Flat-Rate Pricing
- Same-Day & Next-Day Service
- No Overtime Charges
- All Work Warrantied
The Round Rock78664 calls we answer most often
If your system is doing any of the following, it is worth a diagnostic before the fault gets more expensive.
One or two rooms that never reach the set temperature
Yellow or orange burner flame instead of steady blue
Musty or burnt smell the first time the system runs
No cool air, or air that is barely cooler than the room
Dead or bulging run capacitor on the condenser
Refrigerant leak at a flare or coil connection
Heating and air conditioning service built around Round Rock
Serving Round Rock and the wider Williamson County area, our crews carry the common failure parts on the truck — capacitors, contactors, igniters, flame sensors, motors and filters — so the first visit is usually the last one.
Local homeowners often run their system harder than the design intended, especially during March through November. That accelerates wear on contactors, capacitors and blower bearings.
Because Texas runs high-capacity split air conditioning with gas or electric heat, the transition between seasons is when we see the most emergency calls — equipment that sat unused for months.
Typical Round Rock service pricing
| Service | Typical Range |
|---|---|
| Diagnostic / service call | $70 – $140 |
| Capacitor replacement | $167 – $391 |
| Contactor replacement | $177 – $419 |
| Refrigerant leak repair + recharge | $298 – $837 |
| Blower motor replacement | $419 – $884 |
| Compressor replacement | $1,302 – $2,697 |
| Hot surface igniter / flame sensor | $149 – $372 |
| Furnace control board | $353 – $791 |
| Condensate drain / float switch | $121 – $316 |
| Thermostat install (wired or smart) | $140 – $419 |
| Duct cleaning (whole home) | $353 – $837 |
| Full system replacement (installed) | $5,580 – $12,090 |
Market ranges reported for Round Rock, TX and the wider South-Central region. Your flat-rate quote is confirmed on site before any work begins.
Services available in 78664
Residential and light commercial, all major brands, all hours.
Air Conditioning Repair in Round Rock
Diagnosis and repair for central air conditioners, heat pumps in cooling mode, ductless mini-splits and packaged rooftop units.
Furnace Repair in Round Rock
Gas, propane, oil and electric furnace troubleshooting and repair.
HVAC Installation & Replacement in Round Rock
Full system replacement and new construction installs with a Manual J load calculation so the equipment is actually sized for your home.
Heat Pump Repair & Service in Round Rock
Heat pump diagnosis and repair for both heating and cooling operation, including cold-climate units, defrost board failures, reversing valve problems, auxiliary heat strip faults and refrigerant charge issues.
24/7 Emergency HVAC Repair in Round Rock
Around-the-clock response for no-heat in freezing weather, total AC failure during a heat wave, gas smells, carbon monoxide alarms, water flooding from the indoor unit and complete system shutdowns.
Air Duct Cleaning & Sealing in Round Rock
Whole-home duct cleaning and aeroseal-style duct sealing to recover lost airflow, reduce dust and lower the load on your equipment.
HVAC Maintenance & Tune-Up in Round Rock
Seasonal precision tune-ups that catch failing components before they strand you.
Commercial HVAC Service in Round Rock
Service for light commercial and commercial properties including rooftop packaged units, VRF and VRV systems, split systems, make-up air units and building automation controls.
What happens when you call
No forms, no waiting for a callback window. One phone call starts the whole process.
- Step 1: Call the dispatch lineYou reach a live dispatcher, not a recording. They confirm your address, the symptom you are seeing and how urgent it is.
- Step 2: Get matched to the nearest licensed techDispatch routes your job to the closest available licensed technician who already carries the common parts for your equipment.
- Step 3: On-site diagnosis with a flat quoteThe tech tests the system, shows you what failed and gives you a written flat-rate price before any work starts.
- Step 4: Approved repair, same visit when possibleMost repairs are finished on the first visit. If a part has to be ordered you get a firm return window, not a maybe.
Servicing Round Rock and Williamson County
Our 78664 coverage zone centres on Round Rock and extends to the surrounding communities listed below. Every technician dispatched into this area is licensed, insured and background-checked, and every job carries a workmanship warranty.
What Round Rock homeowners say
“Called at 9pm on a Sunday with no heat and a toddler in the house. Tech was here inside an hour, found a failed igniter, had one on the truck.”
— Dana R., verified Round Rock customer
“They found a cracked heat exchanger that our previous company missed for two years. That alone was worth the call.”
— Sandra B., verified Round Rock customer
Round Rock78664 HVAC questions, answered
What does a new system cost in Round Rock?
A complete residential replacement in the 78664 area generally lands between $6,000 and $13,000 installed, depending on capacity, efficiency rating and how much ductwork has to be modified. We always perform a Manual J load calculation first, because an oversized unit costs more to buy and runs worse than a correctly sized one.
Do you service commercial and light commercial properties?
Yes. Around Round Rock we handle rooftop packaged units, split systems, VRF/VRV installations and building automation faults for offices, retail, restaurants and multi-tenant buildings, including after-hours scheduling so you are not disrupting trade.
What brands do you service in Round Rock?
All of them. Our 78664 technicians are trained on Bryant, American Standard, York, Amana and essentially every other residential brand sold in Texas, including discontinued lines. We keep a broad parts catalogue on the trucks for exactly that reason.
Do you handle ductless mini-split systems?
Yes. Ductless installations have grown quickly in Texas, particularly in older homes without existing ductwork. We service indoor heads, clean filters and drain lines, check line-set insulation and diagnose communication faults between heads and the outdoor unit.
Are your technicians licensed and insured?
Every technician dispatched into Round Rock is licensed, insured and background-checked. We can provide proof of insurance on request before the visit if you would like it on file.
Do you charge extra for nights, weekends or holidays?
No. Our pricing in Texas is the same at 2am on a holiday as it is at 2pm on a Tuesday. Emergency calls are dispatched the same way as scheduled calls and carry no overtime premium.
HVAC service near Round Rock, TX
We also cover these Texas communities with the same 24/7 dispatch line.
Need HVAC help in Round Rock 78664?
Call (866) 548-3173 and describe what the system is doing. A dispatcher will tell you honestly whether it is a same-day job, and will give you the 60-90 minutes target window for 78664 before you commit to anything.
(866) 548-3173Answered 24 hours a day, 365 days a year