How much does it cost to finish a basement in Chicago, IL?
Finishing a basement in Chicago, IL typically runs $30–$75 per square foot — most full basements land between $25,000 and $65,000. Adding a bathroom is the biggest extra, followed by egress windows, which building code requires for any basement bedroom. Moisture comes first: finishing over a damp basement is money buried twice.
What you can check yourself
- Fix water before finishes: watch the basement through a rainy season, or fix grading and gutters first — framing over seepage guarantees a redo.
- Ask whether the quote includes permits and an egress window if any room could be a bedroom — unpermitted basement 'bedrooms' hurt resale.
- Price the bathroom separately and honestly; it's often 25% of the whole budget.
Typical cost
Typical in Chicago, IL: basic finish $30–$50/sq ft; with a bathroom and better finishes $50–$75/sq ft. Egress window installation $3,000–$5,500 each.
When to call a pro
A licensed contractor with permits — a basement bedroom without egress is a code and safety issue, and unpermitted finished space usually has to be disclosed (or discounted) when you sell.
General Contractor pros in Chicago, IL
- BRADFORD JAY HARRIS · 166 W WASHINGTON ST 750, CHICAGO, IL
- PARKS AND BELL CLEANING & CONSTRUCTION COMPANY · 333 S WABASH AVE 27TH 2745, CHICAGO, IL
- LEND LEASE (US) CONSTRUCTION INC. · 1 N WACKER DR 850, CHICAGO, IL
- SONOMA CONSTRUCTION LLC · 445 N WELLS ST 404, CHICAGO, IL
- ARTEMIDA CONSTRUCTION · 659 W RANDOLPH ST 15TH 1509, CHICAGO, IL
- EMPIRE CONSTRUCTION COMPANY · 214 W OHIO ST 4TH, CHICAGO, IL
- HEARN CONSTRUCTION COMPANY, INC. · 875 N MICHIGAN AVE 41 4100, CHICAGO, IL
- ATHENS CONSTRUCTION CO, INC · 613 W 16TH ST 3, CHICAGO, IL
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Data by Servik — verified local pros from official license records and public sources. Cost figures are typical ranges, not quotes; a pro's written estimate is the real number.