HVAC Repair in Union Star, MO64494
Arctic Air Heating & Cooling dispatches licensed, insured heating and air conditioning technicians toUnion Star and the 64494 ZIP code 24 hours a day, 7 days a week. Target response time in this service zone: 90-120 minutes.
If your gas furnaces with high-capacity central air has started short cycling, blowing warm air or making a noise it never used to make, you are not alone — Union Star generates some of the highest call volume we handle in Missouri. Hot humid summers and cold winters, with spring storms producing a spike in surge-related component failures.
Talk to a live dispatcher in Union Star
Serving 64494 and DeKalb County — no phone trees, no callback waiting.
- No overtime charges for evenings, weekends or holidays
- Manufacturer-trained on Goodman, Daikin and Trane equipment
- Free second opinion on any replacement quote over $3,000
- Upfront honesty: if it is a $40 capacitor, we say so
★★★★★4.8 average · 338 verified reviews
- Licensed & Insured Technicians
- Background-Checked Crews
- Upfront Flat-Rate Pricing
- Same-Day & Next-Day Service
- No Overtime Charges
- All Work Warrantied
The Union Star64494 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.
Skyrocketing utility bills with no change in usage
Refrigerant leak at a flare or coil connection
Furnace lights then shuts down after a few seconds
Yellow or orange burner flame instead of steady blue
Short cycling — on and off every few minutes
Pilot light or hot surface igniter failing repeatedly
Heating and air conditioning service built around Union Star
Whether the complaint is weak airflow upstairs, a furnace that will not stay lit, or an outdoor unit that hums but never starts, the process is the same — a proper diagnostic, a written price, then the repair.
Local homeowners often run their system harder than the design intended, especially during May through September. That accelerates wear on contactors, capacitors and blower bearings.
Because Missouri runs gas furnaces with high-capacity central air, the transition between seasons is when we see the most emergency calls — equipment that sat unused for months.
Typical Union Star 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 Union Star, MO and the wider South-Central region. Your flat-rate quote is confirmed on site before any work begins.
Services available in 64494
Residential and light commercial, all major brands, all hours.
Air Conditioning Repair in Union Star
Diagnosis and repair for central air conditioners, heat pumps in cooling mode, ductless mini-splits and packaged rooftop units.
Furnace Repair in Union Star
Gas, propane, oil and electric furnace troubleshooting and repair.
HVAC Installation & Replacement in Union Star
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 Union Star
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 Union Star
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 Union Star
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 Union Star
Seasonal precision tune-ups that catch failing components before they strand you.
Commercial HVAC Service in Union Star
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 Union Star and DeKalb County
Our 64494 coverage zone centres on Union Star 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 Union Star homeowners say
“New ductless install, clean work, and they actually did a load calculation instead of just matching the old unit size.”
— Kevin M., verified Union Star customer
“The technician showed me photos of the corroded coil and explained the whole thing without talking down to me.”
— Robert L., verified Union Star customer
Union Star64494 HVAC questions, answered
Is my system low on refrigerant, or is it leaking?
Refrigerant does not get "used up" the way fuel does. If your charge is low, there is a leak somewhere — usually at a flare connection, a schrader core or the evaporator coil. We locate and repair the leak rather than simply topping up the charge, because a top-up alone will fail again.
Why is my furnace short cycling?
Short cycling in Union Star most often comes from a restricted airflow path — a loaded filter, a closed register, an undersized return — or from an oversized unit. It can also be a failing flame sensor or a pressure switch fault. We measure static pressure and temperature rise before concluding anything, because guessing at this one is expensive.
Do you offer maintenance plans?
We do. A two-visit plan in Missouri covers a spring cooling inspection and an autumn heating inspection, priority scheduling during peak weeks, discounted repairs and no diagnostic fee. Members rarely end up on the emergency list.
Do you service commercial and light commercial properties?
Yes. Around Union Star 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 causes water to leak from the indoor unit?
Almost always a blocked condensate drain line, a failed drain pan float switch, or a frozen coil melting faster than the pan can handle. In Union Star we see algae and dust clogging drain lines constantly during May through September. It is a fast fix but ignoring it ends in ceiling damage.
What brands do you service in Union Star?
All of them. Our 64494 technicians are trained on Goodman, Daikin, Trane, Rheem and essentially every other residential brand sold in Missouri, including discontinued lines. We keep a broad parts catalogue on the trucks for exactly that reason.
HVAC service near Union Star, MO
We also cover these Missouri communities with the same 24/7 dispatch line.
Need HVAC help in Union Star 64494?
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 90-120 minutes target window for 64494 before you commit to anything.
(866) 548-3173Answered 24 hours a day, 365 days a year