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Find Basement remodelers in Markham

Avatar for Craftsman Builders Inc.
Craftsman Builders Inc.
5.0(
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."
2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Forty Eight Oaks
Forty Eight Oaks
5.0(
3
)

Angi Approved

In business since 2004

Free estimates

Warranties offered

"They refinished the basement for me, and I would absolutely recommend them based on the work done. He did great work, followed up, polite and easy to deal with. I recommend him without hesitation."
Recommended by100%of homeowners
SDS Construction, LLC
New to Angi

Angi Approved

In business since 2005

Free estimates

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

Avatar for Matrix Basement Finishing Chicagoland Area
Matrix Basement Finishing Chicagoland Area
4.2(
45
)

Angi Approved

In business since 1984

Free estimates

Warranties offered

"The Entire Matrix team was great to work with, professionals all the way around, explained every single details of the project and kept us up to date with the builder app where they post everything from demolition, framming, plumbing, electrical and pictures of the entire process from start to finish."
47 neighbors recently requested a quote
Recommended by53%of homeowners
Avatar for Matrix Basement Finishing Naperville
Matrix Basement Finishing Naperville
4.1(
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."
40 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Basement 2 Finish
Basement 2 Finish
4.8(
81
)

Angi Approved

In business since 1985

Free estimates

Customers say: Quality work

"Great work by Vito and the whole Basement 2 Finish team. My basement looks fantastic! Take a look at my project on their website. Plainfield, IL"
3 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for KSR Home Improvement
KSR Home Improvement
5.0(
39
)

Angi Approved

In business since 2006

Free estimates

Emergency services offered

"Kris did an amazing job. It was a huge job he did by the book. His experience is evident in his accuracy and efficiency. Kris was onsite everyday and worked in a strategic way that there was never any lost time. He has a great eye for detail and design. You can tell he has a passion for his work. He consulted me often when changes needed to be made to the prints. Great communication during the whole project. He works excellent with DYI'ers like myself. He was patient with me and my hundred questions. He was also very flexible if I changed my mind or had an alteration to the original plan. I look forward to working with Kris again."
16 neighbors recently requested a quote
Recommended by100%of homeowners
RRGG Construction Limited
New to Angi

Angi Approved

In business since 1995

Free estimates

With over 30 years of experience, RRGG Construction has earned a solid reputation throughout Chicago for quality craftsmanship and unmatched dedication to customer satisfaction. We specialize in a wide range of residential and commercial construction services, always delivering results that stand the test of time. Our core values—transparency, honesty, and integrity—guide every project we take on. We believe in clear communication, fair pricing, and going above and beyond to exceed expectations. Whether it's a new build, renovation, or repair, our experienced team works closely with clients every step of the way to ensure their vision becomes reality. At RRGG Construction, we don’t just build structures—we build lasting relationships grounded in trust and excellence. When you choose us, you’re choosing a company that treats every project like it's our own.

2 neighbors recently requested a quote
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FAQs for basement remodeling projects in Markham, 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 Markham, IL homeowners’ guide to basement remodelings

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