Welcome to Citywide!

“One of Chicago's Oldest Heating & Cooling Companies (We service all brands boilers/furnaces). Chicago's Oldest Boiler Service and Repair. Citywide Supply and Service has the reputation of being "Chicago's most Affordable and Reliable" Refrigeration Experts.

Citywide has been providing quality, efficient, & reliable HVAC installation, Water Heater & Plumbing Services, Chicago Steam Boiler Service, Commercial Refrigeration, Walk in Cooler Repair, Furnace Repair & Boiler service to our residential & commercial customers.

Chicago boiler repair

Chicago HVAC Commercial Maintenance Contracts

Citywide Supply and Service offers heating and cooling, industrial maintenance, and AC repair for commercial, corporate, industrial, private, and state buildings. Visit our commercial HVAC contract page at: Click here to Visit our Chicago commercial maintenance contract page.

  • December 16, 2014 • Views: 464

    Commercial Refrigeration Experts

    Commercial Refrigeration Experts...

  • March 20, 2014 • Views: 915

    commercial refrigeration experts Chicago IL

    Citywide provides commercial refrigeration repair and service to the Chicago area.   Commercial Refrigeration Services: Walk-in-Cooler Repairs Commercial Ice Machines...

  • February 28, 2014 • Views: 976

    Emergency HVAC services 24/7 Chicago IL

    For emergency commercial refrigeration, steam boiler/boiler, furnace, and or air conditioning maintenance:  call 773hotcold or that’s 773 468-2653 24/7, 365 days Citywide HVAC...

Citywide 773hotcold Yelp Reviews

Call Today! 773-468-2653

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Citywide has been serving the Chicago area since 1966 on 3 solid principals:

Chicago Commercial Refrigeration Service

  1. Make every customer happy
  2. Offer added value for your hard-earned dollar;
  3. Earn your trust...and work hard to keep it!

Nothing unusual about that...except, perhaps, that we never once changed our focus.

Which means...

  • We are still the company that you can rely on for the little jobs...and the not so little.
  • We are still the company that never takes your business for granted.
  • We continue to invite your feedback as part of our constant effort to improve our customer and technical service.

What's more, 773hotcold is now the only resource you will need for: steam heating, rooftop heating, warm air and hot water heating, central air conditioning, and commercial refrigeration. We will install, design, service, or repair any system. We offer fully stocked parts store for all our do-it yourself customers...we do it all.

Are you looking for a reliable HVAC contractor in Chicago that Chicago residents consider to be the best in the business? Your search is over! CityWide offers the most comprehensive HVAC solutions, meaning anything from cooling and heating to air quality improvements, for residential and commercial spaces. For over 40 years we have been cultivating and growing our business to provide our customers with the very best care and service. We want our customers to know that CityWide means dependability, fair pricing, friendly service, and superior industry skill and craftsmanship. Our certified technicians can provide services the same day if necessary, and we service all brands.

Schedule Furnace-AC Repair

HVAC stands for heating, ventilation and air conditioning. It also stands for everything that controls the climate of your home or office. Whether you need AC repair in the summer or furnace repair in the winter, you’re going to need to call an HVAC company in Chicago to get the job done. CityWide HVAC can repair all your heating, venting, and air conditioning issues so that you can relax in your home or office. Whether you’re looking for residential or commercial HVAC repair or maintenance, our technicians are qualified to work on all makes and models of HVAC units. Call us today and experience the best HVAC company Chicago has to offer!

Schedule Furnace-AC Repair

As Chicago’s leading Trane Comfort Specialist, we provide incomparable air conditioning services. In order to earn this distinction, we have met strict standards for exceptional service, excellence in business practices, and offer the finest products. If you are in need of Chicago’s , IL AC repair, we are here for you! We have the qualifications, skills, and knowledge to get your unit functioning properly and efficiently, which will allow you to get the most life out of the system. At the first sign of an ill-functioning air conditioning unit, contact us to get your system up and running, producing cool and clean air. We are here when you need us! Call 773hotcold today!

Schedule Furnace-AC Repair


“We are very happy with the steam boiler service from Citywide! The job was completed in a very professional manner. We definitely will call Citywide again.”

Thank you Mitch,
-Sue G. Joliet, IL

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Read more testimonials

Chicago’s Most Reliable AC Repair Company

Are you looking for AC repair Chicago, IL? Local homes and businesses have turned to Citywide time and time again for the best products and care! Citywide is the solution! As Chicago’s leading Trane Comfort Specialist, we have the highest standards for our products, both for installation and repairs, customer care, and business ethics. We stand behind our 100% Client Satisfaction Promise to ensure our customers are happy with the services and products they have received.

Schedule Furnace-AC Repair

For a furnace and air conditioning repair company to sustain itself for over 40 years says that you are in good hands with a company that knows heating-cooling equipment and repairs. Our company has developed and sustained our business on your referrals.

For over 40 years we have been designing and repairing equipment that others will not. It is not always in our customer’s best interest to replace their existing equipment with new equipment and knowing when the time is right is extremely important to you “Our Customer”. 773hotcold owns and operates a full machine shop that fabricates and tools it’s own parts for any out of stock/date furnace parts.


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