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Find Basement remodelers in New Berlin

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. "
63 neighbors recently requested a quote
Recommended by60%of homeowners
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Avatar for Redefined Remodel and Construction, LLC
Redefined Remodel and Construction, LLC
5.00(
3
)

Angi Approved

Super Service Award Winner

In business since 2023

Free estimates

Warranties offered

"Josh did a great job remodeling our kitchen, designed and building a new front porch and siding out entire house. Everything was done flawlessly."
23 neighbors recently requested a quote
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Avatar for Kain Construction, LLC
Kain Construction, LLC
4.63(
46
)

Angi Approved

In business since 2000

Free estimates

Customers say: Quality work

"Job overall was good. Main issues observed were communication breakdowns between subcontractor and general contractor about organization of the project. Got a little hectic in the middle of the job. Project quoted at 2 weeks to complete, took about 4 weeks in total. Majority of work done by sub, and finishes by GC. However, final quality of work done was great and at a price that was hard to beat. "
3 neighbors recently requested a quote
Recommended by69%of homeowners
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Avatar for Aloha Outdoor Service
Aloha Outdoor Service
5.00(
32
)

Angi Approved

Super Service Award Winner

In business since 2018

Free estimates

Emergency services offered

"I was looking for a company through Angis and found them and will 100% recommend them. Sione when far beyond my expectation to get the project done professionally and quickly. Thank you for your great work 👍 👏 😀."
1 neighbors recently requested a quote
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Avatar for Timm Building LLC
Timm Building LLC
5.00(
2
)

Angi Approved

In business since 2021

Free estimates

Emergency services offered

"Joe Timm did an extensive remodel of our 1965 ranch fixer-upper, that included kitchen, 2 baths, great room, 1 bedroom, and den. He was professional and thorough. His price quotes were on-target and reasonable. He was reliable: he called and visited when he said he would. We'll use him again for our unfinished basement. We highly recommend Joe and his work. "
3 neighbors recently requested a quote
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FAQs for basement remodeling projects in New Berlin, 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 New Berlin, WI homeowners’ guide to basement remodelings

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

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