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Find Basement remodelers in Columbus

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

Serving Columbus, 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!"
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+38

Recommended by92%of homeowners
Avatar for Granzow Home Improvements, LLC
Granzow Home Improvements, LLC
4.5(
25
)

Serving Columbus, 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
Avatar for Shire Group LLC
Shire Group LLC
5.0(
2
)

Serving Columbus, WI and surrounding areas

Approved

In business since 2023

Free estimates

Offers commercial services

"We had Shire Group work on a remodel of a new office for us. They removed walls, framed in new doorways, and, in an ample space, created five new offices from the ground up. They asked questions that we never would have thought of. After completing the project, many visitors asked about their work besides the new offices. This shows how detailed they were; people could not tell new trim from old trim, removed doorways, moved light switches, and turned an old mailroom into extra space in our kitchen."
Interior Stone
Rim boards + glulams
Location
Fireplace
South Face

+4

Response time2 days
Response rate87%
27 neighbors recently requested a quote
Avatar for Badger Basement Systems
Badger Basement Systems
4.8(
104
)

Serving Columbus, WI and surrounding areas

In business since 1975

Free estimates

Warranties offered

"Things went very well. The four-person crew was prompt, professional and and efficient. The foreman described what was going to happen and how. The concrete walkway, front step and driveway sections that had settled over time were gently lifted and leveled using a polymer foam. After the work, all of the driveway section seams were level and smooth. Very few traces of the work were left behind. We would highly recommend Badger Basement Systems."
Recommended by93%of homeowners
Avatar for Closets by Design
Closets by Design
5.0(
13
)

Serving Columbus, WI and surrounding areas

In business since 2019

Free estimates

Warranties offered

"Truly a full-service company - we just had our 6th project completed by Closets by Design last week. Our installer, Jake, did a fantastic job, taking his time to make cut outs for the outlets. When the project was completed, he made a recommendation that we have a trim piece along the desk. Our house is over 100 years old and the floors and walls are uneven (especially in the corner where we had this desk placed). He discussed options, placed the order, and had another tech come out today (the next business day) to install the trim piece. It was the perfect finishing touch and we could not be happier with how this project turned out. We had intiially ordered a desk from a furniture company, but the shelf and drawer sizes were all wrong and some of the drawers didn't open all the way. Closets by Design gave us the option to purchase a truly custom desk."
Recommended by92%of homeowners
Avatar for Waunakee Remodeling
Waunakee Remodeling
4.5(
134
)

Serving Columbus, WI and surrounding areas

In business since 1977

Free estimates

Emergency services offered

"Projects were done on time and within budget. The onsite foreman was great. We had some complaints about some of the deck staining and grout in the bathroom. the problem areas were replaced. Brian (our salesperson) came back out to take a look at the grout. The grout in the bathroom was likely due to getting it wet too soon after installation. The grout was replaced at no additional cost to us. We also had questions on our bathroom towel racks that had gotten loose - he fixed one and showed us how to tighten the other ones. Their response to issues was professional. We were very happy with their work."
Recommended by86%of homeowners
Avatar for MIDWEST STONE SOURCE + DESIGN STUDIO
MIDWEST STONE SOURCE + DESIGN STUDIO
4.8(
25
)

Serving Columbus, WI and surrounding areas

In business since 2003

Free estimates

Warranties offered

"The whole team knows just how to design and everything to look for, having a customer that is so unsure is difficult for sure.  I bring all my clients to Mid West so that we can design the best space for the best price!  I wouldn't go anywhere else!  Thank you Team Midwest! <br />"
Recommended by92%of homeowners
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FAQs for basement remodeling projects in Columbus, 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 Columbus, WI homeowners’ guide to basement remodelings

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