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Find Basement remodelers in Wilmington

Christensen Carpentry
3.67(
3
)

Angi Approved

In business since 2019

Free estimates

Customers say: Quick response

"Unprofessional, untimely, poor workmanship, stressful experience. Shawn did a LVP flooring install on two levels of my house, including the kitchen. Almost $8K for 1K SF. Flooring failed 1st time due to no subfloor leveling despite me asking twice if it was needed. 24 planks in 600 SF were separating in 2 weeks. Once I informed Shawn the floor was failing, his workers tried accessing my garage without permission to get tools. Seemed like they were trying to split on a bad job. Despite the bad job done, I worked with him on cost-effective products to try and save as much money as possible on the rework. Both levels of flooring had issues, but I only asked for main level to be redone. Ultimately, it took 4 months of poor communication and terrible customer service to finally get new flooring installed, still not level but holding????! Ultimately, the new flooring installed was left unfinished, leaving me to install trim, transitions, end caps, stair nosing and caulk on my own."
Recommended by66%of homeowners
Avatar for Oak Creek Homes, LLC
Oak Creek Homes, LLC
5.00(
10
)

Angi Approved

In business since 2017

Free estimates

Customers say: Quick response

"Mark and his team did an amazing job finishing our basement. He was very flexible and fantastic with his communication. The work is top notch and he doesn't take any short cuts."
Recommended by90%of homeowners
Avatar for Matrix Basement Finishing Naperville
Matrix Basement Finishing Naperville
4.12(
21
)

Angi Approved

In business since 1984

Free estimates

Warranties offered

"Our experience with Matrix Basements could not have been any better! They were an amazing company to work with and the end product was better than we imagined. I fully believe this has so much to do with the fact that Matrix is well organized and professional every step of the way. Every single person we worked with throughout the process was extremely friendly and very knowledgeable in providing us input to make our basement remodel come to life. We lucked out with an amazing field manager, Jim Thurek, who guided us every step of the way. He was very attentive to our needs and questions, which was always reflected in his professional and speedy response time. The management skills of this company is definitely unrivaled and I would recommend them to anyone who is looking for a reliable contractor to finish/remodel their basement."
36 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Custom Remodeling Specialists
Custom Remodeling Specialists
5.00(
3
)

Angi Approved

In business since 1986

Free estimates

Warranties offered

"Dean and his team were great to work with. They understood our vision with our basement reno from the beginning and made it a realty. Their crew was very professional, always communicated well and does really good work. They also were the lowest quote out of the three I received! Great quality and value."
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Mighty Basement & Bath
Mighty Basement & Bath
5.00(
21
)

Angi Approved

Super Service Award Winner

In business since 2024

Free estimates

"Scot and his team were great. Very efficient and easy to communicate with via text or calls, with great response time. I would Recommend Mighty Basement an Bath for any of needs."
4 neighbors recently requested a quote
Avatar for K&R Home Improvements
K&R Home Improvements
5.00(
3
)

Angi Approved

In business since 1990

Free estimates

Customers say: Quick response

"They remodeled my hallway bathroom. I couldn't be more pleased with the results. Their attention to detail is superb. I would definitely hire again for more projects in the future."
2 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Klock Home Services
Klock Home Services
New to Angi

Angi Approved

In business since 0

Free estimates

Emergency services offered

Hi, I’m Kevin with Klock Home Services, proudly serving the Fox Valley area. I provide reliable, detail-oriented handyman and home repair services at fair prices. From furniture and drywall repair to minor carpentry, fixture installs, and general maintenance, I treat every project like it’s in my own home. Whether it’s a small fix or a larger task, you can count on quality work done right the first time.

Avatar for Craftsman Builders Inc.
Craftsman Builders Inc.
5.00(
16
)

Angi Approved

In business since 1990

Free estimates

Warranties offered

"Larry and his crew were very professional. I appreciated his suggestions which made the job even better. He was always here when he said he would be and the finished basement is beautiful."
3 neighbors recently requested a quote
Recommended by100%of homeowners
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FAQs for basement remodeling projects in Wilmington, IL

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 Wilmington, IL homeowners’ guide to basement remodelings

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