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Find Basement remodelers in Sun Prairie

Avatar for Complete Handyman
Complete Handyman
4.95(
21
)

Angi Approved

In business since 2004

Free estimates

Warranties offered

"Mark did an excellent job with finishing our basement, it turned out exactly how we wanted. What we liked most about Mark is that he is very trustworthy and honest. He is very open and transparent with all the costs . He also is very detailed and percise and his subcontractors were very good as well. We would highly reccomend Mark if you need to finish your basement!"
Recommended by100%of homeowners
Avatar for Matrix Basement Finishing Milwaukee Metro
Matrix Basement Finishing Milwaukee Metro
4.16(
28
)

Angi Approved

In business since 1984

Warranties offered

Customers say: Quick response

"From start to finish, our experience with Matrix was outstanding. We had a big project and a specific deadline for completion. Our Field Manager, Ron kept the schedule updated and the project moving. Workers were on time, courteous, professional and clean, We couldn’t be happier with the finished product and the path to getting there. "
62 neighbors recently requested a quote
Recommended by60%of homeowners
Avatar for Quality Building & Remodeling, LLC
Quality Building & Remodeling, LLC
5.00(
2
)

Angi Approved

In business since 2001

Free estimates

Warranties offered

"Rick and his crew did a great job from start to finish. Rick suggested options for better functionality. His work is very detailed and he explained everything. Both decks turned out beautiful, very happy with his work."
3 neighbors recently requested a quote
Recommended by50%of homeowners
Avatar for Great Eagle Home Services
Great Eagle Home Services
5.00(
4
)

Angi Approved

In business since 2010

Free estimates

Emergency services offered

"Curt did a great job installing new interior/exterior ductwork for our new range hood as part of our kitchen remodel project. He showed up when promised and got the job done in an efficient manner. Definitely would hire him again!"
6 neighbors recently requested a quote
Recommended by50%of homeowners
Avatar for Steele Home Remodeling LLC
Steele Home Remodeling LLC
4.90(
31
)

Angi Approved

In business since 2011

Free estimates

Warranties offered

"We really appreciated working with Steele Home Remodeling. His bid was comprehensive and detailed. He provided unique design ideas for our space and helped us get the most out of our basement. Phill and his team provide quality work with an eye for small details that make the project and space come to life. I have already recommended him to family and friends looking for basement remodels."
3 neighbors recently requested a quote
Recommended by93%of homeowners
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FAQs for basement remodeling projects in Sun Prairie, WI

Finishing a basement turns unused square footage into livable space and returns up to 70% of what you spend when you sell your home. Beyond that resale boost, you gain a playroom, home office, or guest suite you can start enjoying right away. That mix of daily comfort and solid return on investment (ROI) makes basement finishing one of the smartest upgrades you can tackle.

In some parts of the country—especially lots on swamps, high water tables, or other wetlands—local codes prohibit basements. Saturated soil puts constant pressure on foundation walls and lets water seep in faster than any sump pump can handle. 

If your property sits on waterlogged ground, building on a slab or crawl space is often safer, more affordable, and code-compliant.

Most basements wrap up in four to eight weeks. Framing takes three to five days, with electrical and plumbing rough-ins following over the next week. Add five days for drywall, two to three for flooring, and another week for paint, trim, and punch-list items. 

Delays can happen if materials run late or your contractor’s calendar is packed, so build in a little cushion when you plan.

Whether a finished basement counts toward your home’s official square footage depends on local rules. Many areas only include below-grade space if it has code-approved egress, fully finished walls, ceilings, and floors, plus consistent heating. 

Check with your local assessor or building department before you start; meeting those standards can affect taxes, appraisals, and resale value.

Building codes require a checklist: dedicated heat and electrical service, a code-approved stairway, and at least one egress window or exterior door. Walls, ceilings, and floors must be fully finished and meet insulation, ventilation, and fire-separation standards. If you add a bedroom, you’ll also need a closet, proper clearances, and safe exits. If you change the layout later, be ready to update the space so every new room still meets today’s code.

The Sun Prairie, WI homeowners’ guide to basement remodelings

From average costs to expert advice, get all the answers you need to get your job done.