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NARI Award-Winning Design-Build★★★★★ 4.8 on Google
New Berlin, WI
Living room with a vaulted ceiling, gray sofa and leather recliner, with arched openings to the entry and kitchen
Design-Build Home Additions · Southeastern Wisconsin

Home Additions in New Berlin, WI

The room your
house was missing.
Your kitchen should make daily life easier, not harder. We design and build home-additions around how your family actually cooks, gathers, and moves, then handle every trade under one roof.
Rooflines and finishes matched to the existing house
Cambria quartz as a Premier Dealer
One team from layout to final install
Most home additions run 8 to 16 weeks once construction starts
★★★★★4.8 rated by homeowners on Google

Start Your Addition

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Serving New Berlin, Wisconsin

Your New Berlin home additions team

New Berlin is more than a market for us. It's home. Our design showroom and office sit at 2345 S Commerce Dr, a few minutes from most New Berlin neighborhoods, and it's where every addition on this page started: a walk-through, a set of Chief Architect drawings, and a fixed-price contract before a single footing was poured. Being local means faster site visits, a showroom you can walk into without driving across the metro, and a crew that already knows the permitting process in New Berlin.
Living room with a vaulted ceiling, gray sofa and leather recliner, with arched openings to the entry and kitchen
Dining table and bench beside a dark wood built-in bar with a beverage fridge and mirrored tile, under a tray ceiling
Seamless By Design

Additions that look like they were always part of the house

The difference between an addition and a great addition is how it meets the existing structure. We design rooflines, siding, and interior flow so the new space blends perfectly, visually and functionally.
From foundation to finishing details, every element is handled by one accountable team: design, engineering, permits, zoning, and construction.
Second-story additions that double space without losing yard
Kitchen and bathroom expansions that transform daily routines
Sunrooms with proper insulation and year-round climate control
In-law suites and guest apartments with independent living space

More about home additions in New Berlin

More about remodeling in your area

Home Additions and Remodeling Services in New Berlin

Functional and Stylish Home Additions for Every Need

Expanding your home is an exciting opportunity to enhance both your living space and your home’s value. At Advantage Design + Remodel, we specialize in high-quality home additions that blend seamlessly with your existing home design while meeting your family’s growing needs. Whether you’re considering adding a bedroom, sunroom, or home office, we work closely with you to bring your vision to life with expert craftsmanship and top-tier materials.

Seamless Integration with Existing Structures

At Advantage Design + Remodel, we focus on making every home addition look like it’s always been part of your home. By carefully matching architectural details, materials, and color schemes, we ensure a cohesive design. Whether you're adding a new room or expanding your living space, our precision and quality craftsmanship guarantee a seamless transformation. We’re committed to delivering home additions that enhance both your home’s functionality and aesthetic appeal, providing lasting value.

Adding Spaces to Enhance Your Lifestyle

A home addition isn’t just about expanding your square footage—it’s about improving how you live. Whether you need a new bedroom, home office, or family room, a well-planned addition can transform the functionality of your home while enhancing its overall value.
These custom spaces are designed with your specific needs in mind, ensuring both style and function blend seamlessly into your New Berlin home.

Custom Home Additions We Offer

At Advantage Design + Remodel, we specialize in a variety of custom home additions, designed to meet your unique needs. Each project is crafted with precision and care to seamlessly integrate with your existing home.
We work with you every step of the way to ensure your home addition not only meets your needs but exceeds your expectations in both design and function.

Why Choose Advantage Design + Remodel for Your Next Home Addition?

Our team is unmatched when it comes to experience, capabilities, and creativity.
We custom build cabinetry, partner with Cambria, and more to provide materials.
We keep your space clean, safe and sanitary throughout the entire remodeling project.
We guarantee our craftsmanship for up to 2 years from the time it's completed.

Seamless Design-Build Process for Home Additions in New Berlin

At Advantage Design + Remodel, our design-build process ensures seamless integration of your home addition, from concept to completion. We work closely with you to maintain open communication, ensuring every detail fits your vision while blending harmoniously with your existing structure.
With skilled hands and premium materials, we craft homes that blend enduring elegance with a deeply personal touch, creating spaces that resonate with your unique style.

Ready for a home remodel?

Is it time to expand your space? Explore our guide, "Is Your Family Ready for a Home Remodel?" and discover if you're set for this thrilling new journey.
Contact us today to schedule a consultation for your New Berlin home addition. Our team will work with you to explore all your options, provide expert recommendations, and help you create the perfect space to enhance your home. Let's turn your dream addition into reality!
What Goes Into It

Key elements of your new addition

Room Additions

Extra bedrooms, guest suites, and extended living areas that feel cohesive with your existing home.

Second Stories

Complex planning, engineering, and structural work to safely add an upper level.

Sunrooms & Porches

Bright, insulated spaces for relaxing and entertaining in every season.

Primary Suites

Privacy and comfort with custom closets and spa-style bathrooms.

In-Law Suites

Independent, comfortable living areas for family and long-term guests.

Mudrooms & Utility

Convenience and organization for busy households, built where you need it.
Recent Work

Recent projects

Start Yours
Living room with a vaulted ceiling, gray sofa and leather recliner, with arched openings to the entry and kitchen
Living Room
Entry with a black front door, leaded-glass sidelights and arched transom, wood bench and geometric rug
Entry
Double vanity with wood drawers, a white top and two sinks, with a glass shower reflected in the mirror
Double Vanity
Dining table and bench beside a dark wood built-in bar with a beverage fridge and mirrored tile, under a tray ceiling
Dining & Wet Bar
Green shaker kitchen with white subway tile, floating wood shelves, a gas range and a white peninsula with stools
Green Kitchen
Green kitchen seen from an adjoining room, with a wine-cubby cabinet, two peninsula stools and a sliding door to a deck
Kitchen
Our Process

Here's how it works

Fixed-price contract, Chief Architect renderings, and a communication plan you can set your watch to.
01House icon

Meet the Experts

A consultation with our design-build team. We listen first, then walk your space and talk goals, scope, and budget honestly.
02Ruler and pencil icon

Personalize Your Design

A 3D design of your new space with real selections, so you see exactly what you are getting before construction starts.
03House with a heart icon

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
★★★★★
"Advantage did a complete remodel of our kitchen and powder room. We absolutely love it! Andy and the staff were easy to work with, professional, and accommodating to our needs. I would highly recommend them for any job big or small."
Carol B.New Berlin, Wisconsin
★★★★★
"Greg and Andy saw us through our kitchen and master bath remodel. They were professional yet fun and kept us in the loop through the whole process. When problems arose, like a leak in our chimney or uneven floors, they handled it well and the project moved on!"
Kirsten O.Menomonee Falls, Wisconsin
Common Questions

Addition remodeling questions

How long does an addition remodel take?+
Most home additions run 8 to 16 weeks once construction starts. The timeline accounts for ordering and lead times, plus key milestones with updates throughout.
Will I know what my addition will look like before construction?+
Yes. You review Chief Architect drawings and 3D renderings during design and development, and key decisions are finalized before the job starts.
Who handles permits, plumbing, and electrical?+
We do. As a design-build firm, you will not need to hire a designer, architect, general contractor, plumber, or electrician separately. One team, one point of contact.
Can I stay in my home during the remodel?+
Almost all of our clients do. We set containment, floor protection, and daily cleanup standards, and use HEPA air filtration to manage dust.
Get Started

Ready for an addition you love?

Book your consultation. We'll talk through your space, your budget, and what's possible, and you'll leave with a clear next step either way.