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Find Basement remodelers in Thiensville

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. "
59 neighbors recently requested a quote
Recommended by60%of homeowners
Avatar for GRANZOW HOME IMPROVEMENT LLC
GRANZOW HOME IMPROVEMENT LLC
4.69(
13
)

Angi Approved

Super Service Award Winner

Customers say: Quality work

"Granzow Home Improvement LLC exceeded all expectations in finishing our basement, and we couldn’t be happier with the results! From start to finish, Richard and Bob displayed professionalism, skill, and a genuine passion for their craft. The attention to detail was incredible—from the high-quality materials used to the flawless execution of every feature. They transformed our basement into a beautiful, functional space that feels like an extension of the rest of our home, not just an afterthought. Whether it was customizing a plan to fit our needs or ensuring seamless design transitions with the same materials used when our home was built, they listened to our ideas and brought them to life perfectly. Beyond the craftsmanship, they were punctual, respectful, and kept the work area tidy throughout the project. Richard communicated with us every step of the way, ensuring there were no surprises and that we were thrilled with the progress. If you’re looking for a reliable, talented contractor to bring your vision to life, look no further than Granzow Home Improvement LLC . We wholeheartedly recommend them and would hire them again in a heartbeat! Thank you, Richard and Bob, for making our dream basement a reality!"
Recommended by92%of homeowners
Avatar for Amethyst Contracting Inc
Amethyst Contracting Inc
4.86(
42
)

Angi Approved

In business since 2003

Free estimates

Warranties offered

"Kristi and her crew were a pleasure to work with. They were very creative in fitting a half bath into a small space in our old home — making it look great and as if it was always there. They were reliable and got the work done on schedule (and without extra charges). Plus they were considerate as they worked in our home."
5 neighbors recently requested a quote
Recommended by95%of homeowners
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
Avatar for Emally's Construction, LLC
Emally's Construction, LLC
4.64(
45
)

Angi Approved

In business since 1990

Free estimates

Customers say: Quality work

"Excellent work and very satisfied with service they provide for my kitchen remodels. The crew was professional, friendly, and attentive to every detail. They helped me plan everything from the layout to the materials, making sure my vision came to life while staying within budget. The cabinets, countertops, and flooring look amazing, and the painting and finishes gave everything a polished, modern look. All appliances and fixtures were set up perfectly, and the team made sure everything worked before they left."
33 neighbors recently requested a quote
Recommended by64%of homeowners
Avatar for Creative Renovations LLC
Creative Renovations LLC
5.00(
3
)

Angi Approved

In business since 2006

Free estimates

Customers say: Quick response

"Rick and his crew did a great job on our bathroom remodel. They were great at being flexible when issues arose during the project and always communicated with us. We are very happy with how it turned out. "
4 neighbors recently requested a quote
Recommended by66%of homeowners
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FAQs for basement remodeling projects in Thiensville, 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 Thiensville, WI homeowners’ guide to basement remodelings

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