Citywide Supply and ServiceHVAC contractor in Chicago, IL

Citywide Supply and Service is ranked #31 of 1,357 HVAC contractors in Chicago by CR Score, with 61 out of 100 as of October 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity, claimed profile, partnered and ContractorsRanked reviews. No business can pay to change its rank.

Citywide Supply and Service is open 24 hours a day, 7 days a week. Its listed hours are Open 24 hours, 7 days a week. On Saturdays it is open Open 24 hours, and on Sundays Open 24 hours. Hours come from the business listing; holiday hours may differ.

Serves Chicago and 12 towns within 25 miles: Portage Park, Harwood Heights, Belmont Cragin, Irving Park, Norridge, Albany Park, Elmwood Park, River Grove, Avondale, Lincolnwood, Niles and River Forest. The list is based on the business's location and the usual service radius for heating and cooling. Confirm your address is covered when you call.

Citywide Supply and Service has a rating of 4.7 from 291 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

Call Citywide Supply and Service on (773) 468-2653. The business is at 6101 W Montrose Ave, Chicago, IL 60634. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.