Air Conditioning Repair Services

Square HVAC Is the most trusted AC repair company in the Hillside IL area.

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Please feel free to contact us. We will get back to you with 1-2 business days. Or just call us now.

What To Expect From Square HVAC

If your air conditioning system is  experiencing issues, you can expect repair services to restore its functionality. Our technicians are highly trained and experienced in diagnosing and resolving various AC problems, including refrigerant leaks, compressor failures, faulty thermostats and motor malfunctions. We aim to identify the root cause of the problem and provide effective solutions to get your system back up and running.

When To Hire AC Repairing Services

The sooner you get in touch with our air conditioning repair & maintainance services to troubleshoot an issue, the more likely you can avoid a more expensive repair job. Fixing a fan motor, recharging refrigerant, or performing a tune-up is relatively minor work. Some major AC unit repair services include a compressor or correcting a condenser or evaporator coil leak.

Types Of Repair Services We Handle At Square HVAC

Square HVAC stand out for our experience, NATE-certified AC repair technicians etc. You’ll receive an honest price estimate no matter how big or small the repair. In addition to straight forward pricing, we charge no hidden fees to fix the following:

  • Condenser Coils
  • Compressors
  • Evaportaors
  • Refrigeration
  • Lines
  • Fans

These are your AC’s most essential components; the unit won’t work without them. Our AC techs are on standby to repair companies fix your cooling system quickly and effectively. When major components need repair of replacement. You can count on Square HVAC. 

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Each AC is different, so we'll review the system manual for your particular make and model, wether Rheem,Trane,Carrier,Goodman, Amerstar,York,Lennox or any other brand.


Like Sherlock Holmes at a crime scene, we look for clues that lead us back to your problem. Things like burnt wires, strange odors, unusual sounds, and oil on the bottom of the machine will get us closer to the answer we're looking for.

Identify The Problem

Once we have our clues, we can narrow them down to identify the exact problem.

Oftentimes, problems are associated with an underlying causes. If we fix the problem without finding the cause, your next AC repair company will run into the same issue again. We take a holistic approach to ensue long-lasting air conditioner repairs.

Repair & Test

Now comes the technical part! We use the correct tools and equipment to repair the issue. Once we're done, we'll test the system ensure our solution is correct. We'll keep at it until its done.


Freon is essential to the cooling process of the air conditioning unit. When it is low on this fluid, you will know by the following signs: 

  • Insufficient cooling throughout the house
  • It takes the AC longer to cool the home
  • You feel warm air blowing from vents
  • You hear hissing or bubbling sounds coming from the unit
  • Ice buildup on the refrigerant lines or evaporator coil

Most air conditioning units are designed to last about 15-20 years. Replacing the unit once it reaches this age range is usually recommended. Here are some questions to consider as you make this decision: 

  • Is the cost of repairs progressively going up?
  • Is the energy efficiency of the unit decreasing?
  • Do you have to repair the unit more often?
  • Is the unit struggling to provide the same comfortable temperatures in the home?

If you answered yes to one or two of these questions, it might be worth replacing your AC instead of paying for another repair. The older the AC, the more it breaks down and decreases performance. 

If your AC goes out, there are several things you can try before calling a repair tech:

  • Check the power and try resetting the breaker.
  • Ensure the thermostat has a fresh set of batteries and is set to the correct temperature.
  • Clean or replace the air filter.
  • Inspect the outdoor unit for any visible damage, debris, or blockage.
  • Check the condensate drain to ensure that it isn't overflowing with water.

The ideal time to replace an AC unit is typically during the off-season or when the weather is milder. This allows for greater flexibility in scheduling and reduces the urgency associated with extreme temperatures. We recommend choosing a month in the early spring or late fall to ensure you aren't uncomfortable without a working air conditioning unit.


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