Every CO2 supplier we could find in the Chicago area (Illinois) was checked one by one, and 20 of them made the list. 6 will refill the cylinder you walk in with, so you keep the tank you own. 14 would not confirm either way, so those are marked call to confirm rather than guessed at. 3 confirm food grade CO2 for anything you actually drink; the common sizes here are 10lb, 10lb; exchange: 5lb, 20lb; most cover welding, industrial, soda.
20places listed
6confirmed refill
3confirmed food grade
Last checked September 2026
Sorted for you: places that refill your own tank come first, then the most complete, confirmed listings. Exchange-only and unconfirmed spots follow.
Hours Mon Closed; Tue-Fri 11:00-19:00; Sat 11:00-18:00; Sun 11:00-17:00
Official current CO2 service page explicitly offers both swaps and same-cylinder refills. It lists refill sizes of 2.5 lb, 5 lb, and 10 lb, exchange sizes of 5 lb, 10 lb, and 20 lb, and states that beverage-grade CO2 is used for all fills. Standard SodaStream cylinders are not serviced.
American Welding & Gas acquired the former Grant Hagberg operation in 2025 and currently operates this Griffith branch. The former branch service site explicitly states that it refills and recharges all sizes of CO2 cylinders. Current AWG branch information supplies the current address, phone, and hours. The email is AWG's official corporate customer-service address.
Official current site verifies the active Skokie business, address, phone, email, and hours. Current business evidence identifies Food Grade CO2 and Beverage CO2 at this location, while recent local customer evidence confirms CO2 tank refills. Exact refill cylinder sizes were not verified.
Hours Mon-Fri 08:00-17:00; emergency service 24 hours
Official current service information explicitly states that the company picks up CO2 tanks, hydrostatically tests them, dries and refills them, then returns and reinstalls them. Current official location information verifies the Elgin address and phone. The email is verified through a current reputable business directory.
Official current site verifies this Schererville welding and gas supplier and explicitly lists CO2 among its gases. Current regional homebrew resource information identifies this location for CO2, nitrogen, beer gas, oxygen, propane refills, and hydrotesting. Exact CO2 refill sizes and food-grade designation were not verified.
Hours Mon-Thu 11:00-17:00; Fri 11:00-19:00; Sat 11:00-17:00; Sun 11:00-16:00
Official current site explicitly invites customers to stop in for a CO2 tank refill and verifies the Libertyville location and current hours. The public email is verified through the current American Homebrewers Association supplier directory. Food-grade status and exact refill sizes were not explicitly published.
Current municipal and local business sources verify the Hickory Hills physical location and identify it as a beverage and welding gas supplier. Current company information includes carbon dioxide among supplied gases. Portable same-cylinder refill versus exchange behavior and supported sizes were not established, and no reliable public email was found.
Official current branch page verifies this Aurora location, branch-specific email, phone, hours, and carbon dioxide availability. Portable refill versus exchange behavior, food-grade status, and supported CO2 cylinder sizes were not published.
Official current branch page verifies this Brookfield location, branch-specific email, phone, hours, and carbon dioxide availability. Portable refill versus exchange behavior, food-grade status, and supported CO2 cylinder sizes were not published.
Official current branch page verifies this Chicago location, branch-specific email, phone, hours, and carbon dioxide availability. The public branch page does not establish portable-cylinder refill versus exchange behavior, food-grade status, or supported CO2 cylinder sizes.
Hours Mon-Fri 07:30-12:30 and 13:00-16:00; Sat-Sun Closed
Official current branch page verifies this Elgin location, branch-specific email, phone, split weekday hours, and carbon dioxide availability. Portable refill versus exchange behavior, food-grade status, and supported CO2 cylinder sizes were not published.
Official current branch page verifies this Elk Grove Village location, branch-specific email, phone, hours, and carbon dioxide availability. Portable refill versus exchange behavior, food-grade status, and supported CO2 cylinder sizes were not published.
Official current branch page verifies this Joliet location, branch-specific email, phone, hours, and carbon dioxide availability. Portable refill versus exchange behavior, food-grade status, and supported CO2 cylinder sizes were not published.
Official current branch page verifies this South Chicago Heights location, branch-specific email, phone, hours, and carbon dioxide availability. Portable refill versus exchange behavior, food-grade status, and supported CO2 cylinder sizes were not published.
Official current AWG branch page verifies this Chicago physical location, phone, and hours. Current industry membership information ties this exact Chicago location to AWG's beverage-gas and carbon-dioxide distribution business, and recent Chicago community evidence identifies AWG as a CO2 source. The email is AWG's official corporate customer-service address. Branch-specific refill versus exchange behavior, food-grade status, and sizes were not established.
Official current AWG branch page verifies this Wheeling physical location, phone, and hours. Current local carbon-dioxide directory evidence identifies the same 300 Sumac Road location as a carbon dioxide supplier under the Specialty Gases of America name, which is treated as the same physical operation rather than a duplicate row. The email is AWG's official corporate customer-service address.
Linde Welding Gas & Equipment Center - Bedford Park
Call to confirm
7400 S Central Ave · Bedford Park, IL 60638
ServiceCall to confirm
Food gradeCall to confirm
Tank sizesAsk when you call
Your cylinderAsk
weldingindustrial
Hours Mon-Fri 07:30-16:30; Sat-Sun Closed
Official current branch page verifies the active Bedford Park gas and welding location. Current branch-specific industrial directory evidence lists carbon dioxide at this exact address. Linde's official general contact email is used because no branch-specific public email was found. Portable refill versus exchange behavior, food-grade status, and sizes remain unknown.
Linde Welding Gas & Equipment Center - Chicago Ridge
Call to confirm
10170 Virginia Ave · Chicago Ridge, IL 60415
ServiceCall to confirm
Food gradeCall to confirm
Tank sizesAsk when you call
Your cylinderAsk
weldingindustrial
Hours Mon-Fri 07:30-16:30; Sat-Sun Closed
Official current branch page verifies this Chicago Ridge location and explicitly lists Carbon Dioxide among available gases. Linde's official general contact email is used because no branch-specific public email was found. Portable refill versus exchange behavior, food-grade status, and cylinder sizes were not established.
Linde Welding Gas & Equipment Center - Elk Grove Village
Call to confirm
1161 McCabe Ave · Elk Grove Village, IL 60007
ServiceCall to confirm
Food gradeCall to confirm
Tank sizesAsk when you call
Your cylinderAsk
weldingindustrial
Hours Mon-Fri 07:00-16:30; Sat-Sun Closed
Official current branch page verifies this active Elk Grove Village location and explicitly lists Carbon Dioxide among available gases. Linde's official general contact email is used because no branch-specific public email was found. Portable refill versus exchange behavior, food-grade status, and cylinder sizes were not established.
Recent current business directories continue to list Miller Carbonic at this Chicago address in the Carbon Dioxide category, and current company profile information describes beverage gas systems for restaurants, bars, breweries, and related customers. Portable refill versus exchange behavior, food-grade designation, tank sizes, weekend hours, and a reliable public email were not established.