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Home Additions in Wausau, WI

Expand your home with thoughtful design, skilled craftsmanship, and a remodeling team you can trust from start to finish.

More Space, Planned With Purpose

When the location, property, and neighborhood are still right, an addition can give you the room you need without starting over somewhere else.

Ross Construction helps homeowners plan and build substantial additions that feel like a natural part of the existing home. We guide the design, budgeting, permitting, and construction process from the first conversation through the final walkthrough.

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An Addition Should Feel Like It Has Always Belonged

A successful custom home addition in Wausau, WI should connect naturally to the architecture, systems, and flow of the existing home.

Our team looks at the details that help an addition feel like part of the original home:

  • Exterior fit: Rooflines, siding, trim, and materials
  • Structural support: What the existing home can safely handle
  • Better flow: How the new rooms connect to the current layout
  • Light and views: Window placement and natural light
  • Home systems: Heating, cooling, plumbing, and electrical
  • Site conditions: Drainage, insulation, and the property itself

Matching every existing material may not always be possible, especially on an older home. When it is not, we develop complementary solutions that make the transition feel intentional.

The goal is a finished space that looks and feels like it was always meant to be there.

Home Addition Options for the Way You Live

Our room additions in Wausau, WI are designed around your household, property, and long-term plans.

Bedroom with floor-to-ceiling windows and vaulted ceiling in Marathon, WI custom home by Ross Construction.

Primary Suite Additions

Create a private bedroom, bathroom, walk-in closet, and other features that make the home more comfortable now and practical for the future.

Spacious kitchen with cathedral ceiling and large island in custom home by Ross Construction in Marathon, WI.

Kitchen and Great Room Additions

Expand a crowded kitchen, add dining space, or create an open gathering area with better storage, natural light, and access to the outdoors.

Minimalist bedroom with bay windows and wood flooring in a Ross Construction custom home in Wausau, WI

In-Law Suite Additions

Add private space for parents, adult children, or long-term guests while keeping family close.

Bright two-story living room with floor-to-ceiling windows in Wausau custom home by Ross Construction.

Second-Story Additions

When building outward is not practical, adding another level can create bedrooms, bathrooms, offices, or flexible living areas.

Bright sunroom with colorful chairs and wood ceiling by Ross Construction in Lake Dubay, WI.

Sunroom Additions

Enjoy more natural light and better views with a sunroom or four-season room designed for year-round comfort in Wisconsin.

Three-stall garage with stone and siding exterior by Ross Construction in Marathon, WI.

Garage and Bonus Room Additions

Expand vehicle and storage space, or create a finished living space above or beside the garage.

Ross Construction mudroom design in Edgar, WI featuring farmhouse wood paneling and organization.

Specialty Room Additions

Add a home office, mudroom, laundry room, hobby space, guest room, or another room designed around a specific need.

Home Addition Costs and Timelines for Wausau, WI

Design, estimating, engineering, and permitting take place before construction. Ross Construction will provide a clearer investment range and projected schedule as your plans are developed.

Typical Home Addition Investment

$80,000–$300,000+

The cost of a home addition in Wausau, WI depends on its size, structural needs, included rooms, site conditions, and finish selections.

Typical Construction Timeline

3 to 6 Months

Most additions take three to six months to build once construction begins. Large additions, extensive structural work, and seasonal conditions may extend the schedule.

Frequently Asked Questions About Home Additions

Curious about what to expect? Here are answers to the most common questions homeowners ask about home additions.

How do I choose the right home addition contractor in Wausau?expand_more
Look for a contractor with addition experience, a clear design-build process, strong communication, relevant project examples, and a solid warranty. Local expertise also matters because Wausau-area homes, permitting, weather, suppliers, and site conditions can all affect the project.
Should I build outward or add a second story?expand_more
It depends on your lot, setbacks, existing structure, floor plan, budget, and long-term goals. Building outward may offer easier access, while a second story can preserve yard space.
Will my home’s systems need to be upgraded?expand_more
Possibly. The added space may require updates to heating, cooling, electrical, or plumbing systems. These needs are evaluated during planning.
Can we stay in our home during construction?expand_more
Often, yes. It depends on where the addition connects and how much of the existing home is affected. Ross will explain access, dust control, safety, and any utility interruptions before work begins.
What happens if unexpected conditions are found?expand_more

If hidden issues are uncovered, Ross will explain what was found, review the options, and discuss any scope or cost changes before moving forward.

Modern office space with wall art and natural light in custom home by Ross Construction in Rib Mountain, WI.
Transitional entry space with plank wall and decor seating by Ross Construction in Wausau, WI.
Close-up of modern fireplace with black tile wall in a Ross Construction custom home in Lake Dubay, WI.
Stylish mudroom entry with wood plank wall and storage bench by Ross Construction in Marathon, WI.
White sectional sofa with floor-to-ceiling windows showcasing lake view in a Ross Construction custom home in Lake Dubay, WI.

Our Design-Build Process

1 | Start the Conversation
Every project begins with a simple call or in-home visit to understand your goals, walk through the space, and discuss early ideas. We listen closely to what you want to achieve and provide clear guidance on what is possible. At the end of this step, you will have a solid understanding of your project direction and the next steps.
2 | Design and Plan With Confidence
Once we agree on the scope and preliminary investment range, our team guides you through design decisions and selections. We work alongside trusted designers and architects to ensure your plans match your priorities and stay aligned with your budget. By the end of this phase, your vision is refined, your material choices are made, and your project is set up for a smooth start.
3 | Build and Enjoy the Transformation
During construction, our in-house craftsmen bring your design to life with consistent communication and attention to detail. We manage scheduling, trades, and quality so you always know what is happening and why. When the work is complete, your updated space is clean, polished, and ready for you to enjoy for years to come.

Many homeowners choose to include these upgrades when investing in a home addition:

select_check_boxExpanded kitchens, great rooms, or family spaces
select_check_boxPrimary suite additions with luxury baths
select_check_boxSunrooms or four-season rooms
select_check_boxHome offices or flex spaces
select_check_boxIn-law suites or guest spaces
select_check_boxFinished basements with entertainment areas
select_check_boxCustom decks or covered outdoor living areas
select_check_boxSeamless exterior blending with the existing home
select_check_boxEnergy-efficient windows & insulation

See How We Bring Homes to Life in Wausau

Ross Construction Cost Guide

Home Addition Cost Guide

Understanding the cost of a kitchen, bathroom, basement, addition, or whole-home remodel in Wausau can feel overwhelming. Our Remodeling Cost Guide gives you real numbers, real examples, and real guidance, so you can plan with confidence and avoid surprises.

  • Clear pricing ranges for kitchens, bathrooms, basements, additions, and whole home remodels in Wausau
  • Insight into what drives costs up or down so you can make informed decisions
  • A helpful breakdown of features, upgrades, and selections to expect at each investment level
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Bright living space with picture windows and stone fireplace in a Ross Construction custom home in Marathon, WI.

Why Homeowners Choose Ross Construction for Home Additions

Large additions require a team that can guide complex decisions and keep the project moving.

Homeowners choose Ross Construction for our:

  • Established local reputation
  • Guided design-build process
  • In-house carpentry team
  • Experience with large additions and lake properties
  • Proactive communication
  • Three-year workmanship warranty

We help make remodeling feel less overwhelming by providing clear next steps, realistic guidance, and dependable support throughout the project.

Where We Work

Ross Construction serves homeowners throughout Wausau and the surrounding North Central Wisconsin region, focusing on high-quality remodeling and design-build projects in established neighborhoods, lake communities, and high-value areas. Our team understands the homes, landscapes, and local building styles that define this part of Wisconsin, and we bring a trusted reputation for craftsmanship and communication to every project. Whether you live in town, near the water, or in a nearby community, we are committed to delivering work that feels right for your home and your lifestyle.

If you do not see your area listed, reach out, and our team will let you know if we can help with your project.

Our Service Area

  • Wausau
  • Weston
  • Rib Mountain
  • Schofield
  • Minocqua and Surrounding Lake Communities
  • Rothschild
  • Kronenwetter
  • Mosinee
  • Merrill
  • Wausau West
  • Wausau East
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What Homeowners Are Saying

We had our roof, main entry door and Patio door replaced through Ross construction. We were very pleased with the process. They were willing and able to work with our crazy loan process. They listened to our needs and concerns and were able to make helpful suggestions resulting in a great experience. The end results came out better than expected, we were very pleased with their efficiency and quality of work. I will definitely look to them for any future projects we come up with.

Tony Robinson

Ross Construction did cement work for us. We had a curved sidewalk put in. We are VERY pleased with the quality of the project. They were very professional,showed up when they said they would,cleaned up the site and completed in a timely manner. Matt was great to work with and the crew was excellent!

Christele Hall

Ross Construction replaced the rotting wood trim around our garage doors. The scheduling process was easy and we felt comfortable having the capable workers perform their job here! The work was completed in a timely manner and the results were just as we expected! The workers were highly respectful of our property! We highly recommend Ross Construction to those needing outside home repairs!

Judy Wyskoarko

Ross Construction did a fantastic job remodeling our deck. Communication was excellent and the quality of work is best in class. I would highly recommend them if you have a project that you need to complete.

Tim Brumbaugh

We have had Ross Construction do several jobs for us all from putting a complete new roof on my mothers garage to redoing our fire place, putting tile in kitchen to handling our water damage ect…. They have always been so easy to work with. They handle everything. They keep in contact with you and do an excellent job! We have absolutely no complaints. Wonderful family to work with!

Diane Kielman

We had a fantastic experience doing an extensive home remodel with Ross. The team was responsive, professional, and delivered high quality work. Projects finished on time and exactly as budgeted. They stand by their work and addressed any and all follow up questions and asks.

Phillip Dane

We recently hired Ross construction to renovate our kitchen, and I couldn’t be more impressed with their work! From start to finish, they were incredibly professional and kept me informed every step of the way. They showed up on time every day and worked diligently to ensure the project stayed on schedule.

What stood out to me most was their honesty—there were no hidden costs or surprises, and they made sure to discuss any changes or adjustments before moving forward. The quality of the work was exceptional, and the finished kitchen exceeded our expectations.

We would definitely hire them again for any future projects and highly recommend them to anyone looking for reliable, trustworthy contractors. A great experience all around!

Michelle Jensen

Ross Construction did a complete overhaul in my kitchen. Our family couldn’t be more pleased with its outcome! They had great communication throughout its process and the house stayed as clean as possible until it was completed. Thank you so much!!

Kari Prohaska

Ross construction is the definition of a professional contractor. The way they approach customer service and quality in their work is second to none. From communication with a bid to attention to detail in the project, their team is the best choice in central Wisconsin. Thank you for your great work on our new home.

Rob Love

Start Your Project With a Team You Can Trust

Clear guidance, honest communication, and craftsmanship you can count on.

Connect with our team to discuss your goals and schedule your first conversation. We will walk you through the next steps, answer your questions, and help you move forward with confidence.

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