AC Repair In Southeast Wisconsin | Air Conditioner Repair

Reliable Air Conditioning Repair in Southeast Wisconsin

When temperatures are high, every home depends on a reliable air conditioning system to keep everyone comfortable. In Southeast Wisconsin, the air conditioning experts at Thielmann Heating, Cooling, & Plumbing understand the intricacies of providing quality air conditioning services and tailoring them to fit each home we work on.

Call Thielmann Heating, Cooling, & Plumbing at (262) 299-6197 to learn more about air conditioning repair services or schedule services in Southeastern Wisconsin.

HVAC technician repairing a home's cooling system

24/7 Emergency Air Conditioning Repair

The air conditioning professionals at Thielmann Heating, Cooling, & Plumbing have extensive training and comprehensive experience working with all types and brands of air conditioning systems. Whatever your AC repair needs, you can count on us for prompt, friendly, expert service.

Our emergency air conditioning repair service ensures your system is up and running quickly, so you can enjoy comfortable indoor temperatures once again.

Signs You Need AC Repair

If it’s unclear that your AC issue needs professional repair attention, look for the following signs. Give us a call if you observe:

  • AC system blowing hot air
  • Odd or loud noises coming from the AC unit
  • Repeating, frequent AC issues
  • Spiking energy bills
  • The AC unit is 10 or more years old
  • Unresponsive thermostats
  • Unusual odors when AC comes on
  • Water or refrigerant leaks near the AC unit

If your Southeast Wisconsin home needs air conditioning repair services today, contact Thielmann Heating, Cooling, & Plumbing at (262) 299-6197!

Troubleshooting Tips for Your Non-Working AC

If your AC fails, you can follow some troubleshooting tips to identify the issue. Sometimes, it can be minor, such as blocked or closed vents, which you can easily resolve. Although we advise against repairing extensive damage or bigger components yourself, knowing what’s causing problems helps you call on us to deliver fast, efficient service.

  • Check the power supply: Inspect the AC to see if it receives power. The circuit breaker might have tripped, so check it, too. Also, see if the power switch is on, as a tripped system will switch it off.
  • Inspect the thermostat: A malfunctioning thermostat can cause your AC to stop working. If it’s digital, reset it. Check for dust and debris inside that prevents the wiring from contacting the terminals. Other issues could be related to the heat anticipator on a mechanical thermostat, although we recommend waiting for our technician to inspect it properly and diagnose any thermostat issues.
  • Examine the air filter: Replace clogged or dirty air filters to improve airflow and the AC’s efficiency.
  • Inspect the air vents and ducts: Check that the vents are unobstructed and the ducts are not leaking or blocked. Reduced airflow negatively impacts the AC’s performance. Remove obvious vent obstructions and anything that could cause the ducts to leak or block them.
  • Listen for unusual sounds: Listen closely for rattling, grinding or other strange noises when the air conditioner switches on. It might be caused by a broken or loose component inside or something you can’t inspect visually. Our professionals will address these issues promptly.
  • Monitor the outdoor unit: If the AC is working, the fan in the outdoor condenser unit should be running. If not, it could signal a problem only our professionals can resolve.
  • Check the refrigerant levels: Low refrigerant levels could mean a leak that one of our experts needs to locate and repair.
  • Reset the AC system: Turn off the thermostat and circuit breaker. After a few minutes, turn it back on. A hard reset usually resolves smaller issues.

If you’ve followed these tips and your AC is still not working, call us for prompt air conditioning repair services. We’ll be there for efficient, reliable repairs.

Choose Thielmann Heating, Cooling, & Plumbing for AC Repair

Since 1929, Thielmann Heating, Cooling, & Plumbing has provided the Southeast Wisconsin area with superior HVAC services. Our trustworthy NATE-certified technicians are licensed and insured and have passed stringent background checks. We service all brands, give free estimates on replacements, and will make sure you understand our upfront pricing. Customers can also explore our specials, use our financing options, and discounts for military, veterans, and seniors.

Schedule air conditioning repair services in Southeast Wisconsin today with Thielmann Heating, Cooling, & Plumbing. Contact our team today at (262) 299-6197.

Air Conditioning FAQs

Here are answers to FAQs about air conditioning units and repairs.


The controls for compressors and fans wear out more as the system turns off and on. Sometimes corrosion can lead to issues with wiring and terminals.

Yes. Dirty filters block airflow through your AC system, making it work harder to produce the same results. In addition, dirty filters also cause other AC components to get dirty, increasing the likelihood of failing and needing repair.

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What To Expect

Discover the Thielmann Heating, Cooling & Plumbing Difference

Fully Licensed & Insured

Our experts have the expertise and training to deliver the highest quality services every time.

Trusted Since 1929

We have served Southeastern Wisconsin for nearly a century, so we understand the needs of our community.

Financing Available

We offer various options from financing partners to help you meet your specific needs and budget.

5-Star Customer Service

Thielmann Heating, Cooling & Plumbing promises five-star customer service with every interaction.

Committed to Excellence

We complete jobs quickly without compromising our commitment to excellence.

Satisfaction Guarantee

Our team is dedicated to ensuring your 100% satisfaction with every service we perform.

Fully Licensed & Insured

Our experts have the expertise and training to deliver the highest quality services every time.

Trusted Since 1929

We have served Southeastern Wisconsin for nearly a century, so we understand the needs of our community.

Financing Available

We offer various options from financing partners to help you meet your specific needs and budget.

5-Star Customer Service

Thielmann Heating, Cooling & Plumbing promises five-star customer service with every interaction.

Committed to Excellence

We complete jobs quickly without compromising our commitment to excellence.

Satisfaction Guarantee

Our team is dedicated to ensuring your 100% satisfaction with every service we perform.

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Our Reviews

See What Your Neighbors Are Saying

I liked my experience with them. The guys I spoke with prior to doing the work, the estimation phase , and the ones I spoke with after the work was completed had enough knowledge and suggestion to answer all my questions. I’m pleased with the job…

De'Angelo T.

De'Angelo T.

Excellent team from start to finish. They were all very respectful of our property, as they promptly and professionally went about their task of installing a new air conditioner system. The system works very well, so far. It is also much quieter than the previous 40+…

Jerry W.

Jerry W.

Thielmann did a tremendous job replacing our Carrier furnace. They worked with us to make sure we were able to get the right product and even worked with Carrier on the issues we were seeing on our old furnace as it was failing sooner than it…

J. K.

J. K.

I've been using Thielmann Group for all my heating and air conditioning since I built my house 23 years ago. They have been great in emergency service and regular maintenance service. On time and very friendly staff. Would, and have, recommend them to anyone!

Paul K.

Paul K.

I have used Thielmann for both installation of a new furnace + A/C recently, but also an install of a ductless mini-split unit six years ago. I fully trust their brands and recommendations. I can't say enough of about this company. Every single person from administrative…

Christin C.

Christin C.