Lake County, Illinois
Heating and AC repair in Lake Forest, IL
Call and describe the problem, whether the furnace will not light, the heat pump is iced over or the air conditioner is blowing warm air, and you will be connected with an independent HVAC contractor serving Lake Forest.
Your call is connected to an independent HVAC contractor, subject to availability in your area. HVAC Nation may receive compensation when your call is connected with a participating provider. Providers are independent businesses.
Lake Forest at a glance
Heating and cooling climate
NOAA's 1991–2020 climate normals for the CHICAGO BOTANIC GARDEN, IL station (about 8 miles away) show about 6,366 heating degree days and 806 cooling degree days in a typical year, with about 128 nights at or below freezing and 17 days reaching 90°F or more. Heating demand is far larger than cooling demand here, so the furnace, boiler or heat pump carries most of the load and a breakdown in a cold snap is the most pressing kind of call.
How homes in Lake Forest are heated
According to the Census Bureau's American Community Survey, 84% of occupied homes in Lake Forest heat mainly with utility gas and 16% with electricity. Gas-fired furnaces and boilers are the most common setup, which means igniters, flame sensors, gas valves and venting come up often on heating calls.
Housing age and HVAC systems
The median year built for housing in Lake Forest is 1976, and about 54% of its 7,282 housing units were built before 1980. Homes from this era commonly have forced-air furnaces with ductwork, and many have had the original furnace and air conditioner replaced at least once.
Services most relevant in Lake Forest
- Furnace Repair (84% of homes heat with gas, propane or oil)
- AC Repair (about 17 days a year at 90°F or more)
- AC Replacement (median home built in 1976, many systems on their second or third AC)
- HVAC Repair (one call when you are not sure which part failed)
Owners, landlords and tenants
About 89% of occupied homes in Lake Forest are owner-occupied and 11% are rented. Homeowners, landlords and property managers can call to be connected; tenants should contact their landlord or property manager about heating or cooling problems first.
Nearby places
Lake Forest is in Lake County. Places within about 30 miles include Chicago (29 mi), Elgin (28 mi), Kenosha, WI (24 mi), Waukegan (9 mi) and Cicero (27 mi).
Other Illinois locations
Prospect Heights (10 mi), Grayslake (12 mi), Niles (15 mi), Zion (16 mi), Elmwood Park (22 mi), Maywood (25 mi), Palos Hills (37 mi), Harvey (45 mi), Frankfort (50 mi), Shorewood (53 mi), Freeport (91 mi), Rock Island (150 mi)
Questions
Is HVAC Nation an HVAC company in Lake Forest?
No. HVAC Nation is a referral service. Calls from Lake Forest are connected to an independent HVAC contractor, subject to availability in Lake County.
How do most homes in Lake Forest heat?
Census survey data shows about 84% of homes heat mainly with utility gas, 16% with electricity, 0% with propane and 0% with fuel oil.
How cold and hot does it get around Lake Forest?
NOAA normals for the CHICAGO BOTANIC GARDEN, IL station average about 128 nights a year at or below 32°F and 17 days at 90°F or above.
Is a permit needed to replace a furnace or air conditioner in Lake Forest?
Many cities and counties require mechanical or electrical permits for equipment replacement. Check with the local building department for Lake Forest or Lake County, and ask the contractor.
What should I do if I smell gas?
Leave the home right away without using switches or phones inside, then call the gas utility emergency line or 911 from outside.
Sources: U.S. Census Bureau Vintage 2024 population estimates; American Community Survey 2020–2024 5-year (tables B25040 house heating fuel, B25034, B25035, B25003); 2024 Gazetteer; NOAA NCEI U.S. Climate Normals 1991–2020 (heating and cooling degree days, base 65°F).