Working Hours
  • Mon 8:00AM - 5:00PM
    Tue 8:00AM - 5:00PM
  • Wed 8:00AM - 5:00PM
    Thu 8:00AM - 5:00PM
  • Fri 8:00AM - 5:00PM
    Sat Closed
  • Sun Closed
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636-441-8121 | 4600 Central School Rd Saint Charles, MO 63304

Auto A/C & Heating Services

If the breeze from those open windows just isn't cutting it, come by our shop in Saint Charles, MO 63304 to get an expert opinion on what we can do to fix your auto A/C or heating problems. We offer affordable prices and guaranteed workmanship. Contact us at 636-441-8121, so we can help you drive in comfort.

Why maintaining your AC System is very important:
Heating and A/C systems may break eventually with usage, hose pipes may clog and drip if not serviced, causing reduced efficiency heating and cooling capabilities. Regular maintenance will keep your AC system operating at peak performance!

Indications your A/C system may be having issues:

  • If your air conditioning blows only slightly cooler air compared to the exterior air
  • Air that blows in smells damp, musty, or like mildew and mold
  • Your cabin does not warm up in cold weather, or is just a little warmer than outside
  • The defroster takes longer than typical to operate, or does not operate
  • Your heater or A/C only functions when driving, not when idling, or quits blowing when the car is stationary
  • Your heating system blows cold air, or the air conditioning blows warm air
  • Low airflow even at the highest fan setting.

A comprehensive evaluation of heating and A/C system includes:

  • Examining the internal controls and blower
  • Checking radiator coolant operating temperature, hoses, pressure radiator cap and thermostat
  • Inspecting the compressor belt
  • Inspecting system and seals for leaks or various other damages.
  • A cooling system pressure test
  • Verifying the A/C pressure meets manufacturer specifications
  • Measuring the interior vent air temperature

Our repair and maintenance services include:

Belts
A fan belt, also known as a drive belt, is a belt connecting your car's engine to the front mounted accessories. The fan belt rotates the water pump and engine fan, which maintains a cool environment for the engine and its components. Sooner or later, your vehicle's fan belts will dry out and crack. When you are ready for a replacement you can count on Kar Tech for all your vehicle's repair needs.

You not only have to get the belts replaced with quality ones but you should have the work done by experts. To have the belts replaced by auto cooling and heating experts - and get your car driving right - visit Kar Tech today. The mechanics at Kar Tech will thoroughly inspect your car's belts; replace all worn belts; and adjust the installed belts.

Radiators
Radiators are heat exchangers for cooling your car's internal combustion engine. A radiator cools the engine by circulating an engine coolant through the engine block - it then loses the heat to the atmosphere through radiation. A radiator has a set of tubes through which the engine coolant flows. Fins surround these tubes. When the radiator fails, the excess heat produced by the engine could damage the engine components. To prevent this from happening, have your radiator serviced regularly. To have your radiator needs handled by experts, visit Kar Tech today.



To learn more about our Heating and Cooling services, call us at 636-441-8121 or request a quote by clicking below:


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What Our Customers Are Saying

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Always good work and fair prices. I have a Tahoe that I purchased new that now has 340,000 miles, and a bunch of Jeeps with 240,000 miles apiece, I credit Kar Tech for giving me the ability to keep my autos on the road so long.

, 05/19/2020

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Knowledgeable, Efficient, and Honest! Kar Tech diagnosed the problem, called me with an estimate, and completed the repair - at a very reasonable price!! I highly recommend this place!

, 05/19/2020

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Great people who have gone above and beyond to get my truck on the road. Honest and very fair. I couldn't ask for anything to have gone better.

, 05/19/2020

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I have used Kar Tech for the last 10 years with 3 different vehicles. I feel so safe and comfortable taking my car to them. I get honest feedback. The prices are great and the service is awesome. They always get me in quick and are great at explaining everything to me. I appreciate having them as my go-to more than they know. Thank you!

, 05/19/2020

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Nice family owned business who knows what their doing!

, 05/19/2020

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Friendly service and great prices. This has been my only mechanic for 15 years at least and will only go to them!

, 05/19/2020
  • ASE Master Technician
  • NAPA AutoCare Center
  • IDENTIFIX
  • Jasper
  • MITCHELL 1
  • Draeger
  • Motorcraft
  • Car Care Aware
  • Call Us For Service: 636-441-8121