NARI Award-Winning Design-Build★★★★★ 4.8 on Google & Houzz
(262) 735-7572 New Berlin, WI
Advantage Design + Remodel ADR
Home/Services/Basement Finishing
Finished basement lounge with wet bar
Design-Build Basements · Southeastern Wisconsin

Basement Finishing in New Berlin & Greater Milwaukee

Your biggest
untapped space.

Your lower level is the most efficient square footage you will ever add: the structure is already built. We turn it into a family room, bar, guest suite, gym, or office that feels like the main floor.

  • The most cost-effective way to add living space
  • Moisture, insulation, and egress handled to code
  • Wet bars with Cambria tops as a Premier Dealer
  • Sound mitigation so movie night stays downstairs
★★★★★4.8 rated by homeowners on Google & Houzz
Free Design Consultation
Includes a 3D rendering of your new space

Start Your Basement

Tell us about your space. We reply within one business day.

No spam, no pressure. Your information stays with us.

Finished basement family room with sectional
Below-Grade, Done Right

Main-floor comfort starts with building science

A finished basement is only an asset if it stays dry, warm, and quiet. We assess existing conditions first, then build a resilient environment: high-performance insulation for thermal stability and ventilation that prevents humidity buildup.

Egress solutions are installed where sleeping quarters require them, and every electrical detail is handled to code, so the space is as safe as it is comfortable.

  • Zoned layouts: media room and gym separated from office or guest space
  • Layered lighting that compensates for limited natural light
  • Moisture-resistant flooring that stays warm underfoot
  • Ceiling and wall sound mitigation between floors
What Goes Into It

What your lower level can become

Family & Media Rooms

Open lounge layouts with specialized flooring and lighting built for movie nights.

Wet Bars & Kitchenettes

Custom cabinetry with Cambria quartz tops that tie the whole space together.

Guest Suites

Comfortable bedrooms with proper egress, insulation, and a hotel feel.

Home Offices

Quiet zones with sound dampening and focused lighting for real work.

Home Gyms

Durable floors, ventilation, and layouts that make the workout actually happen.

Storage That Disappears

Purposeful built-ins so the utility zone never creeps into the living zone.

Recent Work

Recent basement projects

Start Yours
Basement rec room with pool table
Rec Room
Basement lounge with wet bar
Lower-Level Lounge
Basement family room with sectional
Family Room
Finished basement living space
Basement Remodel
Basement media space with bar seating
Media Room
Basement built-in details
Custom Built-Ins
Our Process

Here's how it works

Fixed-price contract, Chief Architect renderings, and a communication plan you can set your watch to.

01

Meet the Experts

A consultation with our design-build team. We listen first, then walk your space and talk goals, scope, and budget honestly.

02

Personalize Your Design

A 3D design of your new space with real selections, so you see exactly what you are getting before construction starts.

03

Remodel Your Home

Our crew gets to work with daily cleanup, HEPA dust control, and a dedicated project lead who keeps you in the loop.

Homeowner Stories

Trusted by homeowners just like you

★★★★★4.8 on Google & Houzz
★★★★★
"We found Greg very easy to work with; he listened to what we wanted, made helpful suggestions, and came up with solutions as problems were discovered. We could not be more pleased with the quality of the results."
David S.Wauwatosa, Wisconsin
★★★★★
"I had a great experience with a fantastic group of craftspeople! The communication was excellent, the workmanship was top-notch, and the finished product is absolutely beautiful. I highly recommend Advantage Design + Remodel."
Michelle D.New Berlin, Wisconsin
Common Questions

Basement finishing questions

Substantially. The structure, foundation, and roof already exist, so your investment goes into livable finish instead of new construction.

We assess moisture conditions first, then use high-performance insulation, proper ventilation, and moisture-resistant materials rated for below-grade use.

Yes. Sleeping quarters require code-compliant egress. We handle the cutting, installation, and inspection as part of the project.

We install sound mitigation in ceilings and walls so activity downstairs does not interfere with life upstairs, and vice versa.

Get Started

Ready to use your whole house?

Book your free design consultation. We'll assess your lower level honestly and show you what it could become.

Call Now Book Consultation