Emergency line open 24/7 · Times shown in ET
AC repair in Saint Louis, MO
Saint Louis sits in St. Louis (city) County and we cover 68 ZIP codes across it. One call routes your cooling fault to an independent local provider.
Your call connects you with an independent local HVAC provider. No obligation.
Call (855) 321-3194How do I get AC repair in Saint Louis, MO today?
Dial (855) 321-3194 with your ZIP code ready. We match it against providers covering Saint Louis, MO and connect the call. The provider tells you when they can reach you and what the work costs before they start it.
Cooling calls in Saint Louis
We list Saint Louis as a major-tier market, which is what sets the cost bands further down this page. St. Louis (city) County providers quote their own prices, so treat those bands as the range completed jobs have landed in rather than a quote.
This grid lists the 68 ZIP codes we cover in Saint Louis. They share one phone line and one routing process, and the ZIP code is the only field that changes which providers appear.
Local considerations
Refrigerant work anywhere in Saint Louis is restricted to technicians holding EPA Section 608 certification. If a provider is recovering or charging refrigerant on your system, they are required to hold it and you can ask to see it.
Humid continental summers with high dew points, which strains systems sized only for dry-bulb temperature. In Saint Louis that shows up as shorter service life on capacitors, contactors and condenser fan motors than the same parts would see in a milder market.
Looking for the other side of the system? Heating Repair in Saint Louis, MO.
- 63101
- 63102
- 63103
- 63104
- 63105
- 63106
- 63107
- 63108
- 63109
- 63110
- 63111
- 63112
- 63113
- 63114
- 63115
- 63116
- 63117
- 63118
- 63119
- 63120
- 63121
- 63122
- 63123
- 63124
- 63125
- 63126
- 63127
- 63128
- 63129
- 63130
- 63131
- 63132
- 63133
- 63134
- 63135
- 63136
- 63137
- 63138
- 63139
- 63140
- 63141
- 63143
- 63144
- 63145
- 63146
- 63147
- 63150
- 63151
- 63155
- 63156
- 63157
- 63158
- 63160
- 63163
- 63164
- 63166
- 63167
- 63169
- 63171
- 63177
Other vertical
Services
Cooling services in Saint Louis
The cooling services below cover the majority of Saint Louis calls. Prices shown are national bands; the major-tier figures for this market appear further down.
6 services
AC Repair in Saint Louis
Cooling faults rarely announce themselves in mild weather. The first stretch of real heat surfaces issues that have been accumulating all year.
View ac repair
02 AC Installation and Replacement in Saint Louis
Systems on R-22 refrigerant face a replacement conversation regardless of condition, because the refrigerant is no longer manufactured and recharging becomes expensive.
Details
03 Heat Pump Repair in Saint Louis
A heat pump that will not switch out of heating mode in summer has a reversing valve fault, which is the component that makes the mode change possible.
Details
04 HVAC Maintenance and Tune-Up in Saint Louis
Coil cleaning and drain clearing in spring take less than an hour and prevent the two most common cooling-season calls from ever happening.
Details
05 Thermostat Installation and Repair in Saint Louis
A thermostat that will not call for cooling looks exactly like a failed air conditioner, which is why it is ruled out first.
Details
06 Duct Cleaning and Sealing in Saint Louis
Static pressure tests identify duct restrictions and leaks in ways that a visual inspection alone cannot, because the worst leaks are usually at unsealed flex connections inside insulation.
DetailsInteractive
What is your thermostat reading?
Drag the dial to the temperature your thermostat shows now. The readout names the likely cause band, how urgent it is, and which page to read next.
78
Degrees F
- Likely cause band
- Cooling capacity loss: dirty coil, low refrigerant charge from a leak, or a failing capacitor.
- Urgency
- Call today
- Read next
- AC not cooling
What to do while you wait
- Turn the thermostat to off. A system left running against a fault can make the repair larger.
- Look at the outdoor unit and confirm whether the fan is turning at all. Note what you see.
- Clear at least two feet of space around the condenser so it can draw air freely.
- Keep anyone heat-sensitive in the coolest part of the house with water within reach.
Nearby
Nearby cities we cover
Problems we route in Saint Louis
ZIP codes with their own page
- 63101
- 63102
- 63103
- 63104
- 63105
- 63106
- 63107
- 63108
- 63109
- 63110
- 63111
- 63112
- 63113
- 63114
- 63115
- 63116
- 63117
- 63118
- 63119
- 63120
- 63121
- 63122
- 63123
- 63124
- 63125
- 63126
- 63127
- 63128
- 63129
- 63130
- 63131
- 63132
- 63133
- 63134
- 63135
- 63136
- 63137
- 63138
- 63139
- 63140
- 63141
- 63143
- 63144
- 63145
- 63146
- 63147
- 63150
- 63151
- 63155
- 63156
- 63157
- 63158
- 63160
- 63163
- 63164
- 63166
- 63167
- 63169
- 63171
- 63177
- 63178
- 63179
- 63180
- 63182
- 63188
- 63195
- 63197
- 63199
If anyone in the house is vulnerable to heat, say so when you call. It does not guarantee a faster visit, but it is information the provider uses when deciding how to order their day.
Emergency
If this is happening right now
Call now
- No cool air during a heat advisory
- No heat with outdoor temperatures below freezing
- Burning smell from the vents
- Water pooling at the air handler
- Ice on the line set
- Breaker tripping on every cycle
Call (855) 321-3194 and give your ZIP code.
Shut it off and call the utility or 911 first
- You smell gas: leave the building, then call the gas utility or 911
- Smoke or sparking at the equipment
- A carbon monoxide alarm is sounding: leave and call 911
Reference: CPSC recalls and US Fire Administration heating fire safety.
Shut it down safely
- Set the thermostat to off so the system stops cycling.
- Kill the breaker at the air handler and at the outdoor condenser.
- If you smell gas, leave the building first, then close the gas shut-off at the furnace only once you are outside and have called the utility or 911.
- Clear the area around the equipment and keep pets and people away from it.
A 24/7 line means the phone is answered around the clock in ET. It does not mean a technician is standing by in every market at every hour.
Same-day and 24/7 emergency services are subject to provider participation, location, technician availability, and demand. Availability is not guaranteed and may vary by market and appointment capacity.
Call (855) 321-3194Questions
Saint Louis HVAC questions
What county is Saint Louis in?
Saint Louis sits in St. Louis (city) County, Missouri. Providers covering Saint Louis typically also cover neighbouring markets in the same county, which is why Florissant, Fenton, Ballwin appear in the nearby cities list on this page.
Do you handle mini split systems in Saint Louis?
Yes, where a provider covering your ZIP code services them. Mention the brand and whether it is a single head or a multi-zone system when you call, so the operator matches a provider who works on that equipment.
What happens if the breaker keeps tripping?
Leave it off. A breaker tripping on every cycle indicates a genuine electrical fault, commonly a failing compressor drawing locked-rotor current or a shorted fan motor. Resetting it repeatedly risks damage beyond the original fault.
Can someone come out today?
Sometimes. The line is answered 24/7 in ET, but same-day arrival depends on provider participation, your location inside Saint Louis, technician availability and how heavy demand is that day. The operator tells you the window offered before you commit.
Why is my AC running but not cooling?
The three usual answers are restricted airflow, low refrigerant charge from a leak, or a failed capacitor stopping the compressor from starting. A technician separates them with a static pressure reading and a superheat measurement.
Written and fact-checked by the HVAC Emergency USA editorial team. Last updated . Editorial policy.