Home renovation costs in Illinois.
Illinois runs about 8% above the national average for construction in 2026. Here is what the seven most-requested home projects actually cost locally — and how to turn a range into a real quote.
In 2026, a bathroom remodel in Illinois costs $9,700–$19,400, a kitchen remodel $15,700–$45,400, and a roof replacement $8,600–$21,600. Overall, Illinois construction prices are about 8% above the national average (index 1.08).
2026 cost table for Illinois
| Project | 2026 range in IL | Typical |
|---|---|---|
| Bathroom remodel | $9,700 – $19,400 | $14,600 |
| Kitchen remodel | $15,700 – $45,400 | $30,500 |
| Roof replacement | $8,600 – $21,600 | $15,100 |
| Deck / patio | $4,900 – $13,000 | $8,900 |
| Solar install | $16,200 – $30,200 | $23,200 |
| Room addition | $51,800 – $118,800 | $85,300 |
| Interior painting | $2,400 – $7,000 | $4,700 |
Illustrative 2026 ranges: national mid-range bands × the Illinois cost-of-construction index (1.08). Your quote depends on site conditions, materials, and local demand — see how we price.
What drives costs in Illinois
Chicago union labor and permitting sit well above the national average; downstate runs far cheaper.
Budget roughly 8% over national guide prices when planning here. The premium shows up mostly in labor line items — demolition, framing, tile-setting, and electrical — while big-box material prices stay close to national.
For context: the cheapest state in our index is Mississippi (0.84) and the most expensive is Hawaii (1.48). Illinois ranks #15 of 51. Try the cost calculators to adjust any project for size and finish level.
How Illinois compares in the Midwest
| State | Cost index | Typical bathroom remodel |
|---|---|---|
| Illinois | 1.08 | $14,600 |
| Minnesota | 1.07 | $14,400 |
| Wisconsin | 0.99 | $13,400 |
| North Dakota | 0.96 | $13,000 |
| Michigan | 0.95 | $12,800 |
| Ohio | 0.93 | $12,600 |
| Indiana | 0.92 | $12,400 |
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How much does a bathroom remodel cost in Illinois?
A typical bathroom remodel in Illinois runs $9,700 to $19,400 in 2026, with most homeowners landing near $14,600. Size, finish tier, and moving plumbing drive where you fall in that range.
Is Illinois an expensive state to renovate in?
Illinois runs about 8% above the national average for construction in 2026 (cost index 1.08, ranked #15 of 51). Chicago union labor and permitting sit well above the national average; downstate runs far cheaper.
What does a kitchen remodel cost in Illinois in 2026?
Expect $15,700 to $45,400 for a full kitchen remodel in Illinois, and $8,600 to $21,600 for a roof replacement. See the full table on this page for all seven major projects.
How do I get an exact price in Illinois?
These are illustrative 2026 ranges from Rafter's methodology — national mid-range cost bands adjusted by Illinois's cost-of-construction index. For an exact number, request up to 3 free quotes from vetted local pros; quotes are free and carry no obligation.
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