Home Additions
Home Additions in
Northwestern Wisconsin
When you love where you live but need more room, ACA Contracting builds additions that blend seamlessly with your home. Licensed, insured, and based in Luck, WI — serving Polk, St. Croix, Burnett, and Barron Counties.
What We Build
More Space. Same Home You Love.
Moving is expensive. Building an addition is often a smarter investment — you gain the space you need without leaving the neighborhood, the yard, or the community you've put down roots in.
ACA Contracting handles every phase of your addition: design consultation, permits, foundation or footing work, framing, insulation, mechanical rough-ins, finish carpentry, and final walkthroughs. One contractor, start to finish.
We serve homeowners throughout northwestern Wisconsin — including St. Croix Falls, Luck, Frederic, Amery, Balsam Lake, Siren, and surrounding communities in Polk, St. Croix, Burnett, and Barron Counties.
Types of Additions
What We Build
Every addition is different. Here are the most common projects we take on in northwestern Wisconsin.
Room Additions
Need a bedroom, home office, or living space? We design and build seamless room additions that match your existing home's style, structure, and footprint — no obvious seams or patchwork.
Master Suite Additions
A private retreat added to your home. We handle everything — framing, insulation, electrical and plumbing rough-ins, finish work, and custom trim — start to finish.
Garage Additions & Conversions
Add an attached or detached garage, or convert existing space into livable square footage. We manage permits and structural work so you don't have to.
Sunroom & Screen Porch Additions
Bring the Wisconsin outdoors in. Three-season and four-season additions built for the local climate, with proper insulation and energy-efficient windows.
Second-Story Additions
Love your lot but need more space? We can add a full or partial second story — structural assessment included — to give your home the room it needs without buying new.
In-Law Suites & ADUs
Self-contained living spaces for family members or rental income. We handle the design, permits, and build — licensed and insured for residential construction.
How It Works
Our Process
Free On-Site Estimate
Andrew comes to your property, walks the space, listens to what you need, and gives you a detailed written estimate. No pressure, no obligation.
Design & Planning
We work with you on the layout and finishes. Andrew holds a design degree — if you want integrated design help, it's part of the service.
Permits & Scheduling
We pull all required permits and schedule the work around your timeline. You'll know the start date before we ever break ground.
Construction
Our crew shows up on time, keeps the site clean, and communicates with you throughout. No surprises on scope or cost.
Final Walkthrough & Warranty
You walk the finished project with Andrew. All craftsmanship is backed by a 1-year warranty. Structural work carries a 5-year warranty.
FAQ
Common Questions
How much does a home addition cost in Wisconsin?
It depends on the size, scope, and finishes. Most additions in northwestern Wisconsin range from $30,000 to $150,000+. We provide detailed, line-item estimates before any work starts — no surprises.
Do I need a permit for a home addition in Polk County?
Yes. Most structural additions require a building permit. We pull the permits, coordinate inspections, and manage that entire process for you.
How long does a home addition take?
A typical room addition takes 6–12 weeks depending on size and complexity. We give you a timeline upfront and communicate clearly if anything changes.
Will the addition match the rest of my house?
That's a priority for us. We pay close attention to roofline, siding, trim, and interior finishes so the addition looks like it was always there — not bolted on.
Do you serve Burnett and Barron Counties too?
Yes. We serve all of northwestern Wisconsin — St. Croix, Polk, Burnett, and Barron Counties for residential projects.
Ready to Add On?
Send a message through our contact form. Free estimates, honest answers, no pressure.