What types of home additions do you build?

We design and build a full range of home additions for homeowners throughout Eau Claire and Western Wisconsin, including room additions and family room expansions, sunroom and three-season room additions, attached garage additions, in-law suites and accessory dwelling units (ADUs), and second-story additions. Every project is custom-designed to match your existing home and lifestyle.

How much does a home addition cost in Eau Claire, WI?

Home addition costs vary based on the type, size, and complexity of the project. In the Eau Claire and Western Wisconsin area, additions typically range from $77 to $240 per square foot depending on materials, finishes, and structural requirements. We provide free, detailed estimates so you have a clear picture of total project costs before any work begins.

Do you handle permits and code compliance for home additions?

Yes. We manage the entire permitting process on your behalf, ensuring full compliance with Eau Claire and Chippewa County building codes and zoning requirements. Our team coordinates all inspections and documentation so you can focus on your project rather than the paperwork.

How long does a home addition take to complete?

Project timelines vary by scope. Typical room additions and garage additions take approximately 2 to 4 months from permit approval to completion. Larger projects such as second-story additions, in-law suites, and ADUs generally take 4 to 8 months. We provide a detailed project schedule upfront and communicate with you at every stage of the build.

Home Addition Contractors in
Eau Claire, WI & Western Wisconsin

Ready to expand your living space without the hassle of moving? CMS Property Professionals are your trusted home addition contractors serving Eau Claire, Chippewa Falls, Menomonie, and all of Western Wisconsin. From room additions to second-story expansions, we deliver licensed craftsmanship, seamless project management, and lasting value.

Licensed home addition contractors building a room addition on an Eau Claire, WI home

Full-Service Home Addition Solutions

Why move when you can expand? Whether you need more room for a growing family, a dedicated in-law suite, or an attached garage, our licensed home addition contractors help Western Wisconsin homeowners add real square footage and lasting real estate value — without leaving the neighborhood they love.

Room Additions & Family Room Expansions
Sunroom & Three-Season Room Additions
Garage Additions & Attached Garages
In-Law Suites & Accessory Dwelling Units (ADUs)
Second Story Additions & Vertical Expansions

Why Choose CMS Property Professionals?

Local Home Addition Experts: Licensed home addition contractors proudly serving Eau Claire, Chippewa Falls, Menomonie, and all of Western Wisconsin.
Licensed & Insured: Our certified addition builders deliver structural precision, code-compliant work, and lasting craftsmanship on every project.
Strong ROI: Home additions in Western Wisconsin return significant value at resale. Free, detailed estimates with no hidden costs.
On-Time, On-Budget: Addition projects delivered on schedule with clear timelines, so you always know what to expect.

Home addition contractor reviewing blueprints and construction plans for a Western Wisconsin home addition project

Our Home Addition Process

Free In-Home Consultation:
We assess your property, discuss your vision for added space, and outline the best home addition approach for your Eau Claire or Western Wisconsin home.
Design & Permitting:
We create detailed addition plans, select materials, and secure all required building permits from local Eau Claire and Chippewa County authorities.
Expert Construction:
Our licensed addition contractors execute every phase — foundation, framing, roofing, insulation, and finishing — with precision and professionalism.
Final Walkthrough & Handoff:
We walk through every detail of your new space together, ensuring it meets your expectations before we hand over the keys.

Start Your Home Addition Project Today

Contact CMS Property Professionals for a free in-home consultation and estimate. Discover why Western Wisconsin homeowners trust us as their home addition builder.

Get a Free Estimate

Home Additions FAQ

We build room additions, sunrooms, garage additions, in-law suites, accessory dwelling units (ADUs), and second-story expansions for homeowners throughout Eau Claire and Western Wisconsin.

Home additions in Eau Claire and Western Wisconsin typically cost $77–$240 per square foot, depending on size, design, and finishes. We provide free, detailed estimates so you know exactly what to expect.

Yes, we handle all necessary permits and ensure your home addition project complies with local building codes and regulations in Eau Claire, Chippewa County, and surrounding areas.

Most room additions and garages take 2–4 months from design to completion. Larger or second-story additions may take 4–8 months. We provide a clear project timeline and keep you informed every step of the way.

Home Addition Contractors in Eau Claire, WI & Western Wisconsin