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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon33
    Verified basement remodels reviews

Top-Rated Basement remodelers in South Beloit - Updated Nov 2026

Belair Remodeling & Handyman
5.0(
3
)
Basement - Remodel

Serving South Beloit, IL and surrounding areas

Approved

In business since 2010

Free estimates

Credit card accepted

"He has painted, installed a backsplash, replaced lights, and built an island in our kitchen. He sided my son's houses and finally replaced and repaired plumbing in my 3 bathrooms. Everything was done when promised and at the price quoted. I would highly recommend and I have recommended to numerous people."
Response time11 hrs
Recommended by100%of homeowners
Avatar for Exclusive Masonry & Construction
Exclusive Masonry & Construction
5.0(
3
)
Basement - Remodel

Serving South Beloit, IL and surrounding areas

Approved

Free estimates

Small jobs welcome

Offers commercial services

"Communication was great ever step of the way and they were more than flexible and worked through challenging weather to get the job done within our time frame. Would def consider working with them again."
Additional Photos
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+43

2 neighbors recently requested a quote
Avatar for Castle Construction
Castle Construction
4.9(
9
)
Basement - Remodel

Serving South Beloit, IL and surrounding areas

Free estimates

Credit card accepted

"We called, Alex came out that afternoon, had a bid the next day for the screening. The next day he had a bid on the chimneys. He and a partner began the work and finished in a week. They cleaned up each day, and hauled away trash. Very nice to work with and very thorough. Yes, I would hire again."
Kitchen and Bath Remodeling Project
Remodeling - Kitchen & Bathroom Project
Decks and Porches Project
Landscaping Project
Kitchen and Bath Remodeling Project

+64

Recommended by100%of homeowners
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Basement Remodel FAQs, answered by experts

The average cost to remodel a basement is between $12,100 and $33,400. Depending on the project's complexity, the price can be as low as $3,500 or exceed $50,200. For a simple project like adding a home office, you might spend between $500 and $3,000. However, a more extensive project, such as adding a bathroom, can range from $6,600 to $16,500. The final cost is influenced by factors like the basement's size and condition, the type of remodel, material choices, your location, and accessibility. For an accurate price, it's best to consult with a basement remodeling team.

Yes, most general contractors require an initial down payment, typically between 10% and 25% of the total project cost. This upfront payment helps cover the costs of materials, permits, and subcontractors. The remaining project costs are usually billed after specific project milestones are reached or on set completion dates, as outlined in your contract. Be wary of contractors who require a significant deposit of 50% or more upfront, as this could be a red flag for a scam.

Roughing in and connecting utilities are the hardest parts of finishing a basement, and they’re the parts we typically don’t recommend doing as a DIY project. Unfortunately, your finishing timeline can be extended by weeks while you wait for contractors and inspectors to install electrical wiring, plumbing lines, and heating/cooling equipment and carry out inspections.

Installing a bathroom in a basement isn’t a project for most homeowners. Many parts—plumbing, electricity, and carpentry—go into this project, each requiring expert-level knowledge and tools. One miscalculation can lead to very expensive repairs. Plus, some homeowner’s insurance might not pay for damages caused by a homeowner DIYing this project. You can protect yourself by allowing the pros to complete this job for you. 

Living in a finished basement is acceptable, but only if the space has the proper points of egress and includes smoke and carbon monoxide (CO) detectors to ensure the safety of the occupants. A good way to ensure your finished basement is suitable for use as living space is to get the basement finishing project properly permitted.

The South Beloit, IL homeowners’ guide to basement remodels

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