I read this as: Illinois HVAC Contractors within 25 miles of Chicago, IL.
The same question as a structured link: https://locationlists.com/find?dataset=illinois-hvac-contractors&near=Chicago+IL&radius=25

LocationLists: Illinois HVAC Contractors, within 25 miles of Chicago, IL

792 contractors match (794 listings, 2 duplicates removed).

The file is the list as published. Add the essentials (county population, median household income and median age) or a group of area data to every row below.
Add more area data to every row (each link reloads this answer with those columns added, and the buy link then delivers them):
- Add the essentials: https://locationlists.com/find?dataset=illinois-hvac-contractors&near=Chicago+IL&radius=25&area_columns=county:population,median_household_income,median_age
- Census demographics: https://locationlists.com/find?dataset=illinois-hvac-contractors&near=Chicago+IL&radius=25&area_columns=county:population,households,median_household_income,median_age,pct_65_plus,pct_bachelors_plus,housing_units,owner_occupied_share,median_home_value,population_estimate,population_growth_since_2020,pct_under_18,pct_5_to_14,pct_households_with_people_under_18
- Business activity by industry: https://locationlists.com/find?dataset=illinois-hvac-contractors&near=Chicago+IL&radius=25&area_columns=county:establishments,employees,agriculture_establishments,mining_establishments,utilities_establishments,construction_establishments,manufacturing_establishments,wholesale_trade_establishments,retail_trade_establishments,transportation_establishments,information_establishments,finance_establishments,real_estate_establishments,professional_establishments,management_establishments,administrative_establishments,educational_services_establishments,health_care_establishments,arts_establishments,accommodation_establishments,other_services_establishments
- Weather normals: https://locationlists.com/find?dataset=illinois-hvac-contractors&near=Chicago+IL&radius=25&area_columns=county:january_high,july_high,annual_high,january_low,july_low,annual_low,annual_precipitation,annual_cooling_degree_days,annual_heating_degree_days,hottest_month_high,coldest_month_low,annual_snowfall,annual_days_of_highs_reaching_90_f,annual_days_of_highs_reaching_100_f,growing_season_length_20f_50pct
- Storms: https://locationlists.com/find?dataset=illinois-hvac-contractors&near=Chicago+IL&radius=25&area_columns=county:flash_flood_events,flood_events,hail_events,high_wind_events,hurricane_events,lightning_events,thunderstorm_wind_events,tornado_events,wildfire_events,winter_storm_events,strong_tornadoes,storm_injuries,storm_deaths,storm_property_damage,storm_crop_damage
- Drought: https://locationlists.com/find?dataset=illinois-hvac-contractors&near=Chicago+IL&radius=25&area_columns=county:palmer_drought_severity_index,palmer_hydrological_drought_index,modified_palmer_drought_index,palmer_z_index,palmer_drought_severity_index_2025,palmer_hydrological_drought_index_2025,modified_palmer_drought_index_2025,palmer_z_index_2025
- Building stock: https://locationlists.com/find?dataset=illinois-hvac-contractors&near=Chicago+IL&radius=25&area_columns=county:buildings,multi_story_buildings,mid_rise_buildings,high_rise_buildings,buildings_4_floors_plus,buildings_8_floors_plus,share_with_floors_published,share_with_height_published,building_footprint_area,estimated_floor_area,average_building_height,tallest_building_height
This list is sold whole.
Buy the whole list — 2,155 rows · $29 (card, no account needed): https://locationlists.com/data/illinois-hvac-contractors/buy?src=find
Email me this quote (free, pay later): https://locationlists.com/find/quote?dataset=illinois-hvac-contractors&near=Chicago+IL&radius=25

Preview (3 fixed sample row(s) from these lists, the same for every question — not a sample of your 792 matches):
- 4j's heating and cooling · 5016 W Waveland Ave, Chicago, IL 60641 · +18474544049 [illinois-hvac-contractors] — matches your question
- MidWest Air Control · 15774 S La Grange Rd, Orland Park, IL 60462 · 7084036962 [illinois-hvac-contractors] — matches your question
- A Perfect Climate Inc · 719 W Fullerton Ave, Addison, IL 60101 · 6306918380 [illinois-hvac-contractors] — matches your question

Where the matches are, by ZIP code (counts only, no names or contact details; 162 ZIP codes):
- 60148: 20
- 60188: 19
- 60062: 18
- 60515: 17
- 60090: 16
- 60714: 16
- 60448: 15
- 60007: 14
- 60101: 14
- 60126: 13
- and 152 more ZIP codes (see https://locationlists.com/find?dataset=illinois-hvac-contractors&near=Chicago+IL&radius=25&format=json)
Free map of these counts: https://locationlists.com/find/map?dataset=illinois-hvac-contractors&near=Chicago+IL&radius=25

Left out:
- Illinois HVAC Contractors: 794 match, but at 2,155 records this dataset is sold only as the whole file ($29).

Other ways to ask this:
- Wider: within 50 miles of Chicago IL: https://locationlists.com/find?dataset=illinois-hvac-contractors&near=Chicago+IL&radius=50
- Narrower: within 13 miles of Chicago IL: https://locationlists.com/find?dataset=illinois-hvac-contractors&near=Chicago+IL&radius=13
- By drive time instead: within about a 38-minute drive of Chicago IL: https://locationlists.com/find?dataset=illinois-hvac-contractors&near=Chicago+IL&drive=38
- Counts per county instead of rows: https://locationlists.com/find?dataset=illinois-hvac-contractors&near=Chicago+IL&radius=25&areas=county
- Counts per ZIP code instead of rows: https://locationlists.com/find?dataset=illinois-hvac-contractors&near=Chicago+IL&radius=25&areas=zip
- Every HVAC Contractors list in the same area: https://locationlists.com/find?category=hvac-contractors&near=Chicago+IL&radius=25
- The nearest Pennsylvania HVAC Contractors to each one, with miles: https://locationlists.com/find?dataset=illinois-hvac-contractors&near=Chicago+IL&radius=25&relate=nearest&k=1&b.dataset=pennsylvania-hvac-contractors&b.near=Chicago+IL&b.radius=25

Technical details (developers and AI agents): JSON: https://locationlists.com/find?dataset=illinois-hvac-contractors&near=Chicago+IL&radius=25&format=json · Nothing is charged until checkout is paid.