HVAC market report
HVAC in Illinois
Updated July 2026
Illinois has 2,008 listed HVAC contractors across 209 cities in our directory, and a heating-dominated climate, so furnace and heat-pump work drives most demand. It ranks #5 of 51 states by number of listed pros.
Listed pros
2,008
in our directory
Cities covered
209
with listed pros
With a phone
99%
of listed pros
With a website
83%
of listed pros
With a rating
31%
have public reviews
Median rating
4.9★
of rated pros
Heating demand
6,098
annual degree days
Cooling demand
934
annual degree days
Electricity
17.7¢
per kWh (residential)
Homeowners
63%
owner-occupied
Typical home built
1968
median year
Median income
$83,599
household
Pros per 100k
21.6
in covered cities
How Illinois ranks nationally
Find HVAC pros in Illinois
Browse our full directory of heating and cooling contractors across Illinois.
Browse Illinois HVAC prosData combines our directory with the U.S. Census Bureau (ACS), NOAA Climate Normals and the U.S. Energy Information Administration. See the national HVAC report for methodology and all states.