SDI INC. (773) 627-8371

Basement Finishing in Lake County, IL

Turn the basement into real living space — family room, bedroom, bath or wet bar — framed, wired, waterproofed and permitted by SDI's own crews.

Get a Free Basement Estimate Call (773) 627-8371
24Years in business
100%Our own crews
5.0★Google rating
FreeWritten estimates

What We Do

A finished basement is the cheapest square footage you will ever add to a house — but only if moisture and egress are handled first. We start there, then build the space you actually wanted.

Egress & Safety

Code-required egress windows and wells for basement bedrooms, plus smoke and CO detection wired in.

Waterproofing & Moisture

We address water before we frame — drainage, sealing and vapor control so finishes do not grow mold later.

Framing & Insulation

Framed walls, insulation and soffits that box out ductwork and beams cleanly.

Bathrooms & Wet Bars

Adding a basement bath or wet bar — plumbing, pumps and tile handled by the same crew.

Electrical & Lighting

New circuits, recessed lighting, outlets and low-ceiling-friendly layouts.

Flooring & Finishes

Moisture-tolerant flooring, drywall, trim and paint for a space that feels like the rest of the house.

How the Job Runs

1. Free estimate

We walk the basement, flag any moisture or egress issues, and give you a written price at no charge.

2. Design & permit

We lay out rooms, then draw and pull the village permit — finished basements almost always need one.

3. Rough-in

Waterproofing, framing, then electrical, plumbing and HVAC rough-in, inspected before we close the walls.

4. Finish & inspect

Drywall, flooring, trim, paint and fixtures, cleaned up, with the final inspection booked for you.

Get a Free Basement Estimate