HVAC Repair in Florissant, MO63034
Arctic Air Heating & Cooling dispatches licensed, insured heating and air conditioning technicians toFlorissant and the 63034 ZIP code 24 hours a day, 7 days a week. Target response time in this service zone: 2-4 hours.
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.
Talk to a live dispatcher in Florissant
Serving 63034 and St. Louis County — no phone trees, no callback waiting.
- No overtime charges for evenings, weekends or holidays
- Manufacturer-trained on Bryant, Mitsubishi Electric and Heil equipment
- Free second opinion on any replacement quote over $3,000
- Upfront honesty: if it is a $40 capacitor, we say so
★★★★★4.9 average · 374 verified reviews
- Licensed & Insured Technicians
- Background-Checked Crews
- Upfront Flat-Rate Pricing
- Same-Day & Next-Day Service
- No Overtime Charges
- All Work Warrantied
The Florissant63034 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
Thermostat reading several degrees off from reality
Pilot light or hot surface igniter failing repeatedly
Yellow or orange burner flame instead of steady blue
Water pooling around the indoor unit or ceiling stains
Loud banging on start-up (compressor slugging)
Heating and air conditioning service built around Florissant
We keep licensed, background-checked technicians on the road in Florissant and the surrounding 63034 service area, so a no-cool or no-heat call usually gets a same-visit fix rather than a return trip.
Around Florissant, condensate drainage is a recurring fault. Blocked drains and failed float switches cause more water damage claims here than actual refrigerant failures do.
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 Florissant 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 Florissant, MO and the wider South-Central region. Your flat-rate quote is confirmed on site before any work begins.
Services available in 63034
Residential and light commercial, all major brands, all hours.
Air Conditioning Repair in Florissant
Diagnosis and repair for central air conditioners, heat pumps in cooling mode, ductless mini-splits and packaged rooftop units.
Furnace Repair in Florissant
Gas, propane, oil and electric furnace troubleshooting and repair.
HVAC Installation & Replacement in Florissant
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 Florissant
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 Florissant
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 Florissant
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 Florissant
Seasonal precision tune-ups that catch failing components before they strand you.
Commercial HVAC Service in Florissant
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 Florissant and St. Louis County
Our 63034 coverage zone centres on Florissant 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 Florissant homeowners say
“AC died during a heat advisory. Dispatch was honest that it would be a few hours, then called me the moment a slot opened.”
— Angela W., verified Florissant customer
“Booked a tune-up and got a written report with photos. First time a company has actually documented anything for me.”
— James O., verified Florissant customer
Florissant63034 HVAC questions, answered
How quickly can a technician get to Florissant?
For the 63034 service area our target response time is 2-4 hours from the moment dispatch confirms your address. Real-world timing depends on the day — the first sustained heat or cold snap of the season is always our busiest period — but we hold technicians locally specifically so that window is achievable rather than aspirational.
What brands do you service in Florissant?
All of them. Our 63034 technicians are trained on Bryant, Mitsubishi Electric, Heil, Lennox 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.
What does a new system cost in Florissant?
A complete residential replacement in the 63034 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 charge extra for nights, weekends or holidays?
No. Our pricing in Missouri 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.
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.
Are your technicians licensed and insured?
Every technician dispatched into Florissant is licensed, insured and background-checked. We can provide proof of insurance on request before the visit if you would like it on file.
HVAC service near Florissant, MO
We also cover these Missouri communities with the same 24/7 dispatch line.
Need HVAC help in Florissant 63034?
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 2-4 hours target window for 63034 before you commit to anything.
(866) 548-3173Answered 24 hours a day, 365 days a year