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Top-Rated Basement remodelers in Portage - Updated Nov 2026

Avatar for Matrix Basement Finishing Southwest Michigan
Matrix Basement Finishing Southwest Michigan
3.1(
102
)
Basement - Remodel

Serving Portage, MI and surrounding areas

Approved

In business since 1984

Free estimates

Warranties offered

"We hired matrix because we had a huge basement that was not finished. I researched many companies and got several quotes, and we ultimately went with Matrix. I can say from start to finish, the experience was awesome."
Family Room
Open Concept Basement
Basement Bedroom
Staircase
Basement Before & After

+97

13 neighbors recently requested a quote
Recommended by31%of homeowners
Avatar for WMA, LLC
WMA, LLC
4.1(
45
)
Basement - Remodel

Serving Portage, MI and surrounding areas

Approved

In business since 2000

Free estimates

Warranties offered

"Donavan and Mike were great. They totally stripped my bathroom and then installed new drywall and ceiling., painted it. New tub and shower, vanity, fan, lighting. Fixed a major plumbing issue discovered by a 3rd party. All for about the same money we were quoted for just the tub area."
Response time2 days
6 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for COMMUNITY CONSTRUCTION MICHIGAN LLC
COMMUNITY CONSTRUCTION MICHIGAN LLC
4.1(
24
)
Basement - Remodel

Serving Portage, MI and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Credit card accepted

"I would like to thank Community construction for the work they did with the remodel / rework job they did on my manufactured home in the Yankee Springs / Middleville Michigan area. I recently have expanded my family and need to convert an extra living room space into a bedroom and a smaller sitting / tv room. The Gentleman "Nate" who worked on my home did a great job. Nate communicated with me every step of the way to make sure I was always informed of what was going on. thanks again."
Before
Modernized Roof
Long Deck After
Long Deck Before
AFTER!

+3

Response time1 day
Response rate95%
10 neighbors recently requested a quote
Avatar for Mills Design and Management, LLC
Mills Design and Management, LLC
3.7(
9
)
Basement - Remodel

Serving Portage, MI and surrounding areas

Approved

In business since 2006

Free estimates

Customers say: Quick response

Mills Design and Management, LLC is a family owned company, providing quality service to home owners in southwest Michigan. We pride ourselves on our expert ability to handle each situation. With over 25 years of experience, our staff is highly skilled, and trained. We specialize in basement remodeling, additions, custom barns and garages, and disaster restoration services, from smoke, fire, water, and storms. Our work is never finished until you are completely satisfied and happy. Please call us today, we are looking forward to serving you.

FIRE DAMAGE
KITCHEN BAR
KITCHEN
KITCHEN BAR
LIVING

+47

Response time2 days
Response rate89%
3 neighbors recently requested a quote
Avatar for Matrix Basement Finishing
Matrix Basement Finishing
4.0(
65
)
Basement - Remodel

Serving Portage, MI and surrounding areas

In business since 2009

Free estimates

Warranties offered

"Matrix did an excellent job installing a bathroom in my basement. Steve was incredible in coordinating the different work that needed to be completed and there were many variables for him to juggle. My bathroom shower is probably the nicest in Southeastern Michigan (not bragging - I'd post pictures if I could). Steve's teams did an excellent job getting everything done and making it look as luxurious as possible. The only constructive feedback I have for the company is that the pricing was very steep considering that I believe many steps in the process may have been eliminated; the sales rep was not familiar with every scope of work necessary which made things confusing for Steve (the Project Foreman), and there was an additional individual whom I never corresponded with which made me wonder if there are too many folks involved to keep the pricing affordable. I paid to install the bathroom what I wanted to pay to complete the entire basement and I had to complete some of the work myself to include painting and flooring installation. Overall the quality of the work is tremendous, however, I still think there's opportunity to restructure the approach to completing projects that could drop the pricing down for the consumer. I would definitely hire the company again as they do incredible work and I couldn't be happier with my completed bathroom."
Happy Bathroom Customers
Happy Bathroom Customers
Happy Bathroom Customers
Basement 1
Basement 1

+54

Response time2 days
Response rate100%
Recommended by92%of homeowners
Avatar for A+ Quality Home Improvements
A+ Quality Home Improvements
5.0(
10
)
Basement - Remodel

Serving Portage, MI and surrounding areas

"It went outstandingly! Kyle and his team were fast, professional, proficient, and extremely nice. We loved working with them, and would continue to use them as projects come up. Could not recommend more!!!"
Roofing Project
Roofing Project
Roofing Project
Handymen Project
Roofing Project

+17

Recommended by100%of homeowners
Rob Seth Construction
4.1(
34
)
Basement - Remodel

Serving Portage, MI and surrounding areas

In business since 1998

Free estimates

"Rob and his brother did a fantastic job on our basement. They were prompt and professional. They also made a point of cleaning up at the end of every day they worked so I didn't have drywall dust tracked through the rest of the house. Rob did a fantastic job finishing the drywall and making it ready to prime and paint. The price quoted was very reasonable. I would use them again if I needed any construction.
"
custom garage
custom garage
custom garage
lake house
lake house

+51

Recommended by95%of homeowners
Showing 1-10 of 47
Basement Remodel FAQs, answered by experts

You should always use high-quality lumber for your framing in order to ensure it will last the test of time and resist moisture. Use 2-foot by 4-foot lumber that is pressure-treated for your framing.

It is generally more affordable to finish a basement than an attic, though it ultimately depends on how you plan to use the space. The average cost to finish a basement ranges from $7 to $23 per square foot, while attic renovation costs $30 to $60 per square foot. However, a simple attic conversion to a storage space will cost significantly less.

When choosing materials for finishing basement walls, consider factors such as moisture resistance, durability, and fire resistance. Opt for materials specifically designed for basement environments, like moisture-resistant drywall or cement board. Insulation with vapor barriers can help regulate temperature and prevent condensation. Consider using mold-resistant paints or coatings. 

Research and consult with experts to select materials that are suitable for your specific basement conditions and intended use. Prioritize quality and compatibility to achieve long-lasting and aesthetically pleasing results.

Yes, most general contractors require an initial down payment. A reasonable deposit is typically between 10% and 25% of the total project cost, although this can vary by project size and location. This upfront payment helps the contractor cover initial costs like materials, permits, licensing, and hiring subcontractors. The remaining balance is usually billed according to a schedule outlined in your contract, often tied to project milestones or completion dates. Be cautious of contractors who ask for a large deposit of 50% or more, as this could be a red flag for a scam.

Unless you have extensive experience in construction work, remodeling a basement is best left to a professional. There are several tasks associated with this project that require exact precision, including:

  • Replacing insulation 

  • Replacing carpet or other flooring 

  • Adding heating and cooling

  • Adjusting or adding walls and doors

  • Altering or adding plumbing elements

If any of these elements is done incorrectly, it could severely impact the quality of your basement remodel and be dangerous. Changing a basement often comes with code safety requirements, like egress windows and proper ventilation. Therefore, leaving it up to a professional is often the best decision.

The Portage, MI homeowners’ guide to basement remodels

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