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Find Basement remodelers in Sun Prairie

Avatar for GRANZOW HOME IMPROVEMENT LLC
GRANZOW HOME IMPROVEMENT LLC
5.0(
13
)

Serving Sun Prairie, WI and surrounding areas

Approved

Super Service Award Winner

Customers say: Quick response

"Granzow Home Inprovement was amazing, from the initial meeting, to questions or concerns we had, before, during, and after the work was performed. We were pleasantly surprised mostly by the care and concern Rick and Bob took regarding their customer, which is rare in many businesses. This was our first home remodel project, we learned a lot from it, and we love our basement! Keep up the excellent service!"
Additional Photos
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+38

Recommended by92%of homeowners
Avatar for JDC Contracting
JDC Contracting
4.9(
34
)

Serving Sun Prairie, WI and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"I hired JDC Contracting for a full kitchen remodel, along with small updates throughout my house (new lighting, replacement of interior doors, a new ceiling in the basement, bathroom updates, and numerous other things). John did nearly all of the work himself. He did a wonderful job and our house looks fabulous! I can't say enough about JDC. John is skillful, completely accountable, and fair and honest in pricing. Hiring JDC is a a collaborative project from start to finish. He took the time to hear our ideas, provide sound, practical input, and put together a good, workable plan. After discussing things (every step along the way), John turned what we wanted into reality. He's also kind and a pleasure to work with. I really enjoy interacting with him. I had received estimates from two other kitchen contractors. John was the third contractor that provided one. He really impressed me with his attention to detail, his knowledge, his demeanor, and his being up front about process, pricing, and so on. He left a great impression, so I hired him in late November. John transformed the small, enclosed kitchen into an open concept kitchen that's bright, spacious, and inviting. This was the first time that my wife and I were involved in a major remodel. In December, we were so happy with how the kitchen project was going that we asked John to do additional work on the house. We wanted to squeeze in some more work at our house before he got too busy with other customers' projects. The additional work included the door replacements, as well as partial updates of the bathrooms and basement. He is an HVAC expert, so he also gave great advice on how to maintain and extend the life of our older HVAC system and other mechanicals. His advice is saving us a lot of money. John does such terrific, fairly priced work, we would totally have gone with JDC for full updates of the bathrooms and basement, but we didn't have the finances. So we decided to go forward with partial updates that really changed the 2 bathrooms and basement, while allowing us to stay within our budget. We're grateful to John for these secondary projects--and his ideas for them--because they have given us a lot more living space, and have made the bathrooms much more pleasant to use. We recently purchased the home in Oct. 2022 and we initially had a 3-5 year timeline for improving the kitchen, bathrooms, and basements. But John shortened this timeline down to a 2-month time frame (around 35 days of actual work--there were a couple of delays on materials that slowed us down). We moved in a week ago and are loving it! In sum, I strongly recommend JDC for home improvement projects. John is highly skilled and has integrity and tons of expertise and experience. Most important, he genuinely enjoys making his customers happy by improving their homes. He went the extra mile for us and has definitely made my family and me happy!"
Response time1 day
3 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Berry Remodel, LLC
Berry Remodel, LLC
5.0(
7
)

Serving Sun Prairie, WI and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Credit card accepted

"Jackson did a terrific job regrouting my bathroom as well as installing bifold closet doors, making a new threshold for my back door, and replacing a countertop. Great communication from start to finish, very professional, reliable, does good work. I'd absolutely hire him again. "
Fitchburg Cedar Deck
Fitchburg Cedar Deck
Verona Basement
Verona Basement
Verona Basement

+6

Response time4 hrs
Response rate94%
13 neighbors recently requested a quote
Avatar for Granzow Home Improvements, LLC
Granzow Home Improvements, LLC
4.5(
25
)

Serving Sun Prairie, WI and surrounding areas

Approved

In business since 2001

Free estimates

Warranties offered

"Rick and Bob did a wonderful job finishing our basement. They are easy to work with and take care of scheduling all the sub contractors(which were awesome too) and inspections to keep the project running smoothly. We get many compliments on the look and craftsmanship of their work. Highly recommend them!"
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+58

Response time1 day
Recommended by60%of homeowners
Basement Repair Specialists, LLC
4.6(
40
)

Serving Sun Prairie, WI and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Bob Reber was very diligent, on time that was promised and repaired my sump pump to perfection. He knew exactly what he was doing with professionalism and efficiency. I have not had a problem since then. I am extremely pleased this company and feel more at ease now and confident with Basement Repair Specialists out of Appleton, WI. I highly recommend them!"
Carbon Fiber straps
Response time8 hrs
74 neighbors recently requested a quote
Recommended by77%of homeowners
Avatar for JWC
JWC
4.6(
10
)

Serving Sun Prairie, WI and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"I hired JWC to repair my sill plate and associated face boards, an approximate 4x28 foot area sitting under my patio door. To do so, he and his crew had to jack up one side of the house and work in a tight crawl space and outside in nasty weather. Jordan and his crew were very easy to work with and displayed excellent attention to detail. His rates were most reasonable and he did an excellent job of answering my questions and addressing my concerns in a timely manner. I plan to hire him again for other work. "
Trim installation
Trim installation
Baseboards
Trim installation
Trim installation

+17

Response time3 days
22 neighbors recently requested a quote
Recommended by80%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.