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Residents of Chicago, IL and the surrounding areas are aware that summer days can be just as hard as the winters. You want air conditioning service that’s consistent and reliable. We at STS provide you with reliable AC services at anything you want. When the mercury rises, let STS’s reliable technicians to take care of your air conditioning needs.

Installation and Replacement

When you think it’s time for a new AC Unit, give us a call! STS provides quality and reliable air conditioning installation and repair services in Chicago, IL. Our professional technician will help you select the perfect system to meet your air conditioning requirement.

We at STS also provide air conditioning sizing services so you can be assured that your new AC system will keep your home cool in the hottest days of summer.


Usually the air conditioning system works well for several years if you keep it maintained by experts. STS’s experts can help you to maintain your air conditioning system to last for several years. Our maintenance service will minimize the need for repair for several years and keep your system perfectly working for years.

Our maintenance packages include having technical inspection of your entire cooling system to make sure that all parts are working well and all connections are tight and there is no leakage. Our expert can also clean the duct system, condensing coil and change the air filters.

We at STS care about your AC and other electrical systems as comfort and safety of our customers is most important for us.


STS’s trusted technicians are just a call away, and able to find and fix any damages quickly. Whatever the brand of type of your system, our AC repair experts at STS in Chicago can fix it and have your home cool in summers.

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Our Commitment to Excellence

STS Electric Contractor is a premier electrical contractor in Chicago, Illinois with design build capabilities providing a full range of service to residential, commercial and industrial communities. STS ELECTRIC is an electrical contractor in Chicago with a commitment to providing efficient services to our clients, who value quality and innovation. All our products, installations and maintenance are backed by a comprehensive warranty.

  • Rated A+ by the Better Business Bureau
  • Fully licensed, insured & bonded
  • 100% Satisfaction Guaranteed
  • 24/7 Emergency Service
  • Free service estimates
  • Senior citizen discounts
  • Quick Response Times
  • Fully outfitted with state-of-the-art diagnostic tools and a huge inventory of parts
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