HomeCostGuide

Home Improvement Costs in Illinois

Labor and material costs in Illinois run at the national average, based on our regional cost index.

Updated August 2026

Figures below apply our Illinois regional index to each guide’s national range. The index comes from the U.S. Bureau of Economic Analysis’s Regional Price Parities by State — a real, sourced government figure, not a guess — though it measures overall regional price levels rather than construction costs specifically. See our methodology for how it’s used and its limitations.

Illinois-adjusted cost ranges

ProjectNational rangeIL estimate
Bathroom Remodel$6,500–$25,000$6,500–$25,000
Kitchen Remodel$14,000–$48,000$14,000–$48,000
Roof Replacement$9,200–$18,500$9,200–$18,500
AC Replacement$4,800–$12,500$4,800–$12,500
Water Heater Replacement$1,300–$4,200$1,300–$4,200
Flooring Installation$2,800–$11,000$2,800–$11,000

Labor market

Slightly above the national average overall, driven by the Chicago metro; downstate areas run below the national baseline.

Climate considerations

Cold, snowy winters make furnace sizing and ice-dam prevention significant factors for HVAC and roofing projects.

Permitting

Chicago's permitting and inspection process is considerably more involved than most of the rest of the state.

Common projects in Illinois