Heating and Air cooling professionals with excellence of twenty five years

Mon-Sat: 24 hours

Non Stop | Emergency | Assistance

Call: 708-673-5633

Hillside, IL 60162

Square hvac expert

Quality that is Guaranted

Heating and Air Conditioning Comfort Specialist

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Hillside IL AC & Furnace Repair | Trusted HVAC Service

It can be easy to know when your AC or furnace starts malfunctioning, but hard to know the causes. The components of an AC or furnace are made of complex pieces of machinery, that is why it is hard to spot the early signs of trouble. However, there are a few things that you can look out for that may indicate that it’s time to call in SQUARE HVAC professional technicians.

One of the most common AC or furnace impairment indicators are peculiar noises coming from the unit. If you hear banging, rattling, or squealing, it’s likely something is wrong. Another sign to watch out for is a decreased performance means your AC isn’t cooling enough.

Additionally, an increase in your energy bills without a corresponding increase in usage is another red flag. The last warning sign is an abnormal smell coming from your furnace or AC unit, this could indicate a gas leak or other issues with the internal unit.

If your system is exhibiting these signs, it’s time to call our professional SQUARE HVAC technicians for a quick check-up and repair or installation of new furnace or AC. We are offering an outstanding service to ensure your home’s HVAC system works at its best. In addition, our labor is done with a guarantee so you can enjoy reliable heating or cooling for a longer time.

Need Your Air Conditioner or Furnace Fixed? Call Our HVAC Pros!

Right before the peak of summertime is the perfect time to get your air conditioning unit serviced. You don’t want to be caught in the heatwave without a properly functioning AC unit. Routine maintenance on your AC unit will help prolong its lifespan and keep it running efficiently.


Some more common issues that may arise with AC units include leaks, motor issues, or electrical problems. These are all relatively inexpensive to fix when caught early on. However, if you wait too long, they can turn into much bigger and more expensive problems.


If you have concerns with your HVAC system, or it’s not cooling your home like before, don’t hesitate to contact our professionals for assistance. They will have your unit functioning back to normal in no time.

Get Your Air Conditioning or Heating Repaired ASAP | Call Today!

Most people rely on the air conditioning or heating system to keep their homes comfortable throughout the year. So when something goes wrong, it’s essential to get it fixed as soon as possible. That’s where we come in.


Our expert air conditioning and heating repair technicians are available even during emergencies to help you when you need it most. We truly understand how inconvenient it may be to have a broken AC or heater, which is why we offer fast, reliable service at an affordable price. We are reliable and always on time.


Our team has decades of HVAC industry experience and a reputation for delivering the best work. So don’t wait—call us today and let us help you keep your home comfortable all year long.

Our Story

Meet Square HVAC Specialists

We can proudly say that our Hillside, IL team is the best team you can have for your problems. We always fulfill the demands of our clients. We strive to provide our clients with the best quality layout and fitting services on time always. We always consider the budget of our customers and deal them with excellent customer care services. Client’s expectations are our priority, and we take care of their expectations seriously. We offer our clients affordable repair and maintenance contracts to ensure peace of mind and full satisfaction while staying within budget.
Please call us for further details!

Heating and air conditioning
Heating and air conditioning
Heating and air conditioning
Non Stop Emergency Service

We offer 24-hour emergency service throughout the year, including heating, ventilation system and air conditioning (HVAC). You can rely on us anytime.

Contact our team right now at 708-673-5633 for more details.

25 Years’ Experience

We have vast experience of 25 years in providing excellent heating, air cooling (HVAC), and ventilation services. We ensure excellent customer care service because our clients are valuable to us.
We are a call away from you whenever you need us for your private and commercial property.


Our Services

AC installation

We provide the best quality air conditioning system installations in both private and commercial property. We use the best equipment and excellent material and provide services at an affordable rate.

Maintenance and repair

We provide a full range of repairing and maintenance of air conditioning systems, ventilation systems, light industrial and industrial split systems.

Pre-season preparation

Air cooling systems are designed in a way that needs proper maintenance from time to time for perfect functioning at an excellent rate of energy utilization.

Annual inspections

An annual inspection is essential for detecting damages early before they cause lasting damage to your system. They detect dirty coils and contactors that are burned out.

Heating services

Heating systems require attention as there may be conditions when there is a need to decrease or increase sections number and cool the radiator.


Unites Installed


Central Unites


Less Energy Consumption

Allison Burke

I have never had such a pleasurable experience with heating and air conditioning company. The technicians were courteous, professional, and a pleasure to work with.

Ryan Miller

They set up appointments promptly, show up when they are supposed to, and do excellent work. I would highly recommend.

Heating and air conditioning

Brooke Lynn

“The guys that came by to install were great. They were right on time, completely professional and got the job done in a day.
I highly recommend Square HVAC for your Heating & Cooling needs!”

Heating and air conditioning

John Cunningan

“They have provided consistently excellent service for many years. On time, knowledgeable, almost always had the right part in the truck. Explained everything. Cleaned up when done. Have now replaced furnace and air conditioner by them in addition to regular maintenance. Will continue to use them in the future.”

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