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Thermostat Services in Illinois

120 local Thermostat Services pros serving 40 cities across Illinois. Looking for thermostat installation in Illinois? HVAC Service Fast lists 120 local Thermostat Services companies serving 40 cities — from Chicago and Cicero to Bloomington. Compare Google ratings, check license details and contact companies directly — no middleman, no fees. Illinois sees both hot summers (~80°F) and cold winters (~25°F), so equipment works year-round with little downtime. Typical… Read more

Compare Thermostat Services Companies in Illinois

Local contractors · pick a city to narrow down

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Aire Serv of Central Illinois logo

Aire Serv of Central Illinois

1209 N 8th St Ste 1, Springfield, IL 62702, USA

AC Services Thermostat Services Emergency HVAC
4.9 (223) · via Google

Website

Browns Heating & Cooling logo

Browns Heating & Cooling

1 E Erie St, Chicago, IL 60611, USA

Furnace Services AC Services Heating Services
4.9 (209) · via Google

Website

AB Heating and Cooling logo

AB Heating and Cooling

3312 W Bryn Mawr Ave, Chicago, IL 60659, USA

Energy Efficient Solutions Thermostat Services AC Services
4.9 (163) · via Google

Website

Chicago Heating & Cooling

350 N LaSalle St 9th floor, Chicago, IL 60654, USA

Heating Services Furnace Services AC Services
4.9 (158) · via Google

Website

Eco Temp HVAC - Chicago, IL logo

Eco Temp HVAC - Chicago, IL

1210 S Indiana Ave Apt 4611, Chicago, IL 60605, USA

Energy Efficient Solutions Heat Pumps Maintenance & Tune-up
4.9 (157) · via Google

Website

SRG Mechanical

8698 47th St, Lyons, IL 60534, USA

Heating Services Heat Pumps Furnace Services
4.9 (141) · via Google

Website

About Thermostat Services in Illinois

Looking for thermostat installation in Illinois? HVAC Service Fast lists 120 local Thermostat Services companies serving 40 cities — from Chicago and Cicero to Bloomington. Compare Google ratings, check license details and contact companies directly — no middleman, no fees.

Illinois sees both hot summers (~80°F) and cold winters (~25°F), so equipment works year-round with little downtime. Typical jobs include thermostat installation, thermostat repair, smart thermostat installation and seasonal maintenance.

Illinois has no statewide HVAC contractor license — licensing is handled at the city or county level. When comparing local pros, ask which municipal license they hold and whether the work needs a permit.

Thermostat Services in Illinois — FAQ

How many Thermostat Services companies are listed in Illinois?
HVAC Service Fast currently lists 120 Thermostat Services companies across 40 cities in Illinois. Every profile shows the data we have on file — ratings from public sources, phone, address and, where available, license numbers.
How do I verify a Thermostat Services contractor's license in Illinois?
Illinois does not issue a statewide HVAC license; cities and counties handle licensing locally. Ask the contractor which local license they hold and confirm it with your municipality.
How much does Thermostat Services cost in Illinois?
Prices vary with job scope, equipment and local labor rates, so treat any flat number online with caution. Our free HVAC cost guide explains typical price factors, and requesting two or three quotes from the companies listed here is the fastest way to see real local pricing.
Which Illinois cities have the most Thermostat Services pros?
The largest concentrations are in Chicago, Cicero, Bloomington, Peoria, East Peoria. Use the city filter to narrow this page, or open a city page for the full local list.

Thermostat Services by City in Illinois

Open a city page for the full local list of Thermostat Services pros.