<img height="1" width="1" style="display:none" src="https://www.facebook.com/tr?id=211841999395698&amp;ev=PageView&amp;noscript=1">

Our Expert AC Technicians Can Get You Back to Cool Comfort, Fast

When your air conditioner malfunctions or stops working completely, call on our reliable AC technicians for cooling system repairs. If your system stops blowing cool air, refuses to turn off/on or makes strange noises, our licensed technicians can find and fix the problem fast.

Emergency AC Repair

If your cold air goes out on a blistering hot day or your AC unit is making a noise that’s got you worried, we offer 24/7/365 emergency service. We have two locations to provide faster service. We're here for you.

AC Repair Process

  1. Schedule the Repair – Use this form or call us at (815) 455-7000 to request a repair. You will speak to a friendly Customer Service Rep to find a convenient time that works with your schedule. We offer a 2 hour time window for our customers in the suburbs and a 3 hour time window in the City.
  2. We Will Call You On the Way – We understand your schedule is very busy. Don’t wait at home. Our dispatchers will call you when our technician actually is on his or her way to your home.
  3. We Begin With a Thorough Evaluation – Our expertly trained technicians begin with a thorough evaluation of your equipment. We’ll diagnose the immediate problem but also examine the entire system to determine if there are any underlying issues or potential hazards.
  4. Prices Are Always Quoted Upfront – Once the diagnosis is complete, our technician will prepare a prioritized list of recommendations and pricing. All recommendations are explained so that you understand exactly what the problem is and how much it’s going to cost. We never perform any repairs without first getting your approval.
  1. Get Your Air Conditioner Repaired Same Day – We understand that many AC repairs just can’t wait. In most cases, your technician can get the part needed from our fully stocked trucks or a nearby warehouse. Our goal is to get your equipment fixed that day.
  2. Walk Through of Work Performed – Once complete, our technician will again walk you through all the work performed and recommendations he has moving forward. You will be left with a detailed service ticket describing work performed and associated billing.
  3. Let Us Know How We Did – Your opinion is so important to us. You can be sure that we’ll use your valuable feedback in our ongoing goal to provide the best possible service.
Members Pay Less
See Our Service Plans

Experience You Can Trust for All Your AC Repairs

Althoff has been repairing air conditioners in the Chicago area for nearly 60 years.

  • Family owned and operated
  • Licensed, insured and bonded
  • True 24 hour service
  • Live phone operators and staff
  • Employees drive marked vehicles and wear a uniform & ID badge
  • We quote firm prices upfront
  • We install only quality brands and products
  • Professionally trained technicians
  • Ongoing training in our state of the art training lab
  • We clean up when we’re done
  • We offer a variety of payment options
  • Satisfaction guaranteed


"Matt knows our systems and definitely knows what he is doing. We have total confidence when he leaves that everything is done correctly."

~ T.S from North Barrington, IL


"Althoff's is a very good company who always gives great service and timely service by well-trained technicians. We are delighted to do business with this company!!"

~ R.G. from Crystal Lake, IL


"The tech was on time, efficient, and extremely knowledgeable. I would definintly use this individual again, if or when I need this kind of help."

~ M.S. from Crystal Lake, IL


Let Our Customers Tell You How Great We Are

More Reviews