NARI Award-Winning Design-Build★★★★★ 4.8 on Google & Houzz
(262) 735-7572 New Berlin, WI
Advantage Design + Remodel ADR
Home/Services/Home Additions
Open-concept kitchen and dining remodel by Advantage Design + Remodel
Design-Build Additions · Southeastern Wisconsin

Home Additions in New Berlin & Greater Milwaukee

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 & Houzz
Free Design Consultation
Includes a 3D rendering of your new space

Start Your Addition

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

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

Custom entry built-ins
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
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

Spaces that grew with their families

Start Yours
Open-concept kitchen and dining remodel
Open-Concept Remodel
Open living room addition
Living Space
Dining area addition with big windows
Dining Addition
Open-concept expanded living area
Open Concept
Homeowners celebrating their finished remodel
Happy Homeowners
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
★★★★★
"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

Yes. We handle all necessary permits, inspections, and zoning requirements, and every detail meets local building codes.

That is the core of our design work: rooflines, siding, windows, and interior finishes are matched so the new space blends seamlessly.

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.

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

Call Now Book Consultation