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NARI Award-Winning Design-Build★★★★★ 4.8 on Google
New Berlin, WI
Dining table under a globe chandelier, open to a kitchen with navy lower cabinets and a wood range hood
Design-Build Additions · Southeastern Wisconsin

Home Additions in Southeastern Wisconsin

More home.
Same neighborhood.
Love your home but need more space? A custom addition expands your living area without leaving the neighborhood you love, and we make the new space feel like it was always there.
Room additions, second stories, sunrooms, in-law suites
Engineering, permits, and inspections handled by us
Exterior and interior finishes matched to your home
3D renderings before a single footing is poured
★★★★★4.8 rated by homeowners on Google

Start Your Addition

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Entry with a black front door, leaded-glass sidelights and arched transom, wood bench and geometric rug
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

Love your home but need more space? A custom home addition lets you expand your living area without leaving the neighborhood you love. From spacious kitchens to new bedrooms or family rooms, we’ll design and build an addition that fits your lifestyle perfectly.
At Advantage Design + Remodel, we take pride in turning underused areas into functional, beautiful living spaces. Our process begins with a detailed consultation to understand your goals, budget, and vision.
We collaborate closely with you to design an addition that enhances your home’s flow and aesthetics. Every project is handled with meticulous care from the foundation to the finishing details, so the new space blends perfectly with your existing home.
Whether you’re expanding your living space, creating a new home office, or adding a second story, our team delivers quality craftsmanship and personalized service from start to finish.

Types of Home Additions We Build

Every family’s needs are unique, which is why we offer a variety of addition types tailored to your home’s style and structure. Our design-build approach ensures the final result complements your property both visually and functionally.
If your family is growing or you simply need more room to breathe, a custom room addition can make a world of difference. We build extra bedrooms, guest suites, and extended living areas that feel cohesive with your existing space. From framing to interior finishes, every element is handled with precision to ensure the new room integrates seamlessly.

Kitchen and Bathroom Expansions

An expanded kitchen or bathroom can transform your daily routines and improve your home’s resale value. Whether you need more countertop space, a larger pantry, or a spa-style bathroom, our remodeling experts can reconfigure your layout and extend the footprint to match your lifestyle.
Need more space but don’t want to extend your home’s footprint? A second-story addition offers a smart solution. We’ll handle the complex planning, engineering, and structural requirements to safely and efficiently add an upper level to your home. This is a great way to double your space without losing valuable yard area.

Sunrooms and Enclosed Porches

Bring the outdoors in with a bright and airy sunroom or enclosed porch. These additions are ideal for relaxing, entertaining, or simply enjoying natural light all year round. Our team ensures proper insulation, climate control, and design harmony with your home’s architecture.

Our Process: From Concept to Completion

Building a home addition can feel overwhelming, but not with Advantage Design + Remodel. We’ve refined our process to make it simple, transparent, and efficient from start to finish.
We start by listening to your goals, assessing your space, and developing a design that fits your needs and budget. You’ll receive 3D renderings and plans that help you visualize your new addition before construction begins.
Our team handles all necessary permits, inspections, and zoning requirements. We ensure every detail meets local building codes and safety standards.
With our skilled builders and project managers on site, you can expect top-tier craftsmanship, timely progress, and consistent communication. We treat your home with respect, maintaining a clean and safe work environment throughout the project.
Once construction is complete, we add the finishing details that make your new space truly feel like home. From paint and flooring to trim and lighting, everything is completed with precision and care.
Throughout the process, we maintain open communication and detailed project timelines, so you always know what’s happening and when.

Our Streamlined Design-Build Process

An opportunity to understand the family's needs and ensure Advantage Design + Remodel is the right partner before moving forward with design services.
Involves measuring the space, creating floor plans and black-and-white renderings to offer a conceptual view and preliminary investment range.
The phase where all selections are made, integrated into 3D renderings for a vivid project visualization. This stage finalizes the scope of work, design, and selections, leading to a precise lump sum project cost.
The actual build phase, focusing on bringing the design to life while ensuring the client enjoys both the process and the final product.

Home Addition Ideas & Inspiration

Not sure where to start? Our design team has completed a wide variety of home additions, from cozy nooks to multi-room expansions. Here are a few popular ideas to spark your imagination:
  • Open-concept family rooms: Perfect for entertaining and spending more time together.
  • Luxury master suites: Add privacy and comfort with custom closets and spa-style bathrooms.
  • Home offices and studios: Create a quiet, productive space tailored to your work or hobbies.
  • In-law suites or guest apartments: Offer family and guests a comfortable, independent living area.
  • Sunrooms or garden rooms: Enjoy natural light and a connection to the outdoors year-round.
  • Mudrooms and utility additions: Add convenience and organization to busy households.
Our designers will guide you through options that align with your architecture, maximize your layout, and reflect your personal style. Whether you envision something modern or traditional, we’ll bring your ideas to life beautifully.

Why Choose Advantage Design + Remodel for Your Home Addition

Choosing the right remodeling partner makes all the difference in the success of your project. Here’s why homeowners trust Advantage Design + Remodel:
  • Licensed and Insured Professionals – Your project is handled by certified experts who meet the highest standards of safety and quality.
  • Seamless Design Integration – We ensure your new addition blends perfectly with your home’s architecture and finishes.
  • Transparent Communication – You’ll receive clear updates at every stage—no surprises, just results.
  • Custom Design Solutions – Every addition is uniquely designed to fit your lifestyle, not a one-size-fits-all template.
  • Proven Track Record – With years of experience and countless satisfied homeowners, our team has built a reputation for excellence in home remodeling and additions.
When you choose Advantage Design + Remodel, you’re partnering with professionals who care about your vision as much as you do.

Trusted by Homeowners just like you across South Eastern Wisconsin

Got questions about home remodeling? You’re not alone. Here are some of the most common queries we get:
Most home additions take between 8 and 16 weeks, depending on size, complexity, and weather conditions. During your consultation, we’ll provide a detailed timeline so you know exactly what to expect.
Yes. Most projects require building permits, but our team handles all applications, drawings, and inspections to ensure compliance with local building codes.
Absolutely. We carefully select materials, finishes, and architectural details that blend seamlessly with your home’s current design, making it look as though it was always part of the original structure.
In most cases, yes. We work efficiently to minimize disruptions and keep your living space safe and functional while construction is underway.
For more detailed answers and additional questions, check out our comprehensive Remodeling FAQs YouTube video.

Is It Time for Your Home Additions?

Unsure if now’s the right time? Read our guide, Is Your Family Ready for a Home Addition?, for key insights to decide if your family and home are ready for a change.

Ready to Add More Space to Your Home?

Whether you’re dreaming of a new bedroom, a larger kitchen, or an entire second story, Advantage Design + Remodel will bring your vision to life with expert design and superior craftsmanship.
Let’s build a space that perfectly fits your family, your lifestyle, and your taste. Call us today at (262) 735-7572 or contact us online to schedule your consultation and discover how a custom home addition can transform your space.
What We Build

Popular addition projects

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
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
Living room with a vaulted ceiling, gray sofa and leather recliner, with arched openings to the entry and kitchen
Living Room
Dining table by a large window, open to a white kitchen with a brick-look backsplash and an island with stools
Dining & Kitchen
Dining table under a globe chandelier, open to a kitchen with navy lower cabinets and a wood range hood
Dining & Kitchen
Green shaker kitchen with white square tile, dark wood floating shelves and a stone-top peninsula with two stools
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
★★★★★
"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
★★★★★
"Everyone we met from the company was very polite and courteous as well as their trade partners. We felt at ease having Advantage Remodel help us with our project and trusting them with our home."
Jana R.New Berlin, Wisconsin
Common Questions

Home addition questions

Do you handle permits and zoning?+
Yes. We handle all necessary permits, inspections, and zoning requirements, and every detail meets local building codes.
Will the addition match my existing house?+
That is the core of our design work: rooflines, siding, windows, and interior finishes are matched so the new space blends seamlessly.
What does the design process look like?+
Initial consultation, concept design with floor plans and preliminary investment range, then detailed design with 3D renderings and a precise lump-sum project cost before construction.
Can we live in the house during construction?+
In most cases yes. Additions are built from the outside in, and we sequence the tie-in to minimize the time your existing space is open.
Get Started

Need more room to live?

Book your consultation. We'll look at your home, talk through options, and give you a realistic picture of scope and investment.