Illinois pricing
Hardwood Floor Refinishing Cost Calculator — Illinois
Estimate what sanding and refinishing your existing hardwood should cost. Every figure below is already adjusted for Illinois labor and material pricing.
Verified August 2026
Does floor refinishing cost cost more in Illinois?
+9% versus the national baseline
Estimated total cost
$4,684 – $6,652
- Cost per square foot
- $5
- Stair treads
- $0
Estimates only. Local pricing, site conditions and code requirements change the real number.
What changes the number in Illinois
| Local cost indexAbove the national baseline | 1.09x national |
|---|---|
| Permit fee index | 1.10x national |
| Code basisAdopted locally | Local adoption of the IRC; statewide plumbing and energy codes apply |
| Owner-builder posture | Homeowner permits allowed in most jurisdictions, restricted in Chicago |
| Largest markets | Chicago, Aurora, Naperville, Rockford |
The formula
Cost = area x base rate x condition multiplier + stain + stairs
Water-based finishes cure faster and smell less but cost about 25% more than oil-based polyurethane.
Frequently asked questions
How much does it cost to refinish hardwood floors?
Most projects run $3.50 to $7.00 per square foot in 2026, or roughly $1,800 to $4,500 for a typical main floor.
Refinish or replace?
If the boards are at least 3/4 inch thick and structurally sound, refinishing costs about a third of replacement and lasts 8 to 12 years.
Sources
Sources & verification
Last verified August 2026. Cost figures are modeled estimates based on national baselines adjusted for local labor and material pricing — they are not quotes. Permit rules change; confirm with the building department before starting work.