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Answer five questions for a 2026 planning number on a finished basement in southeastern Wisconsin, with a buffer built in. Most finished basements with us start around $25,000.
Pick the options closest to your plans. Under $10,000 usually covers cosmetic touch-ups, not a finished basement, so this calculator starts above that.
| Space | Standard | Mid-range | High-end |
|---|---|---|---|
| About 600 sq ft | $25,000 to $33,000 | $33,000 to $45,000 | $45,000 to $60,000 |
| About 900 sq ft | $36,000 to $49,500 | $49,500 to $67,500 | $67,500 to $90,000 |
| About 1,200 sq ft | $48,000 to $66,000 | $66,000 to $90,000 | $90,000 to $120,000 |
We plan about 30 percent above national figures. These ranges start from Angi's 2026 national data and are compared with Zonda's 2025 Cost vs. Value figures for Milwaukee. This is a planning range, not a quote: your price comes from a written scope after a free walkthrough.
Square footage sets the base, and a bathroom or egress window adds to it.
No deposit until you approve the scope
You get a written scope, quote and warranty first. Nothing is collected before that.
The questions homeowners ask most before they ask for a quote.
Plan on about $41,600, which is Angi's 2026 national average plus 30 percent. Most finished basements with us start around $25,000, and size, rooms and a bathroom change the number most.
A full bathroom adds $15,800 to $29,000 in this calculator. Drains have to be brought in below the floor, so it is one of the largest single choices in a basement.
Each egress window adds $3,500 to $6,500. A basement bedroom needs a second exit, and an egress window in the bedroom is one way to provide it.
Not with a contractor. Under about $10,000 usually covers cosmetic touch-ups or a DIY start, so this calculator begins around $25,000 for a finished space.
Close enough to plan with, but it is not a quote. Moisture, ceiling height and your room layout all affect the price, so we set it in writing after a free walkthrough.
Book a free walkthrough. Alexis calls within 24 hours, and you see the scope, price and warranty in writing before any deposit.
Free estimate request
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Free on-site estimate. No deposit until you approve the written scope.
Call Monday to Saturday, 7AM to 6PM. A free walkthrough is the fastest way to a real price.
