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    Average homeowner rating
  • Verified reviews icon58
    Verified basement remodels reviews

Find Basement remodelers in Sussex

Avatar for Matrix Basement Finishing

Matrix Basement Finishing

4.54(
275
)
Approved Pro

Matrix Basement Finishing

4.54(
275
)
Approved Pro
Customers say: Quality work
127 local quotes requested
16 years of experience

We are a locally owned and operated basement finishing specialist servicing the Chicagoland area. Our focus is providing clients with a clear, upfront vision of expectations through a design/build approach. Our free design service provides potential customers with a collaborative consultation geared towards budget, wants, needs and lifestyle.

"The basement looks amazing, the crew did an excellent job. They were efficient, kept to their schedules, and did great work."

Matthew R on October 2025

We are a locally owned and operated basement finishing specialist servicing the Chicagoland area. Our focus is providing clients with a clear, upfront vision of expectations through a design/build approach. Our free design service provides potential customers with a collaborative consultation geared towards budget, wants, needs and lifestyle.

"The basement looks amazing, the crew did an excellent job. They were efficient, kept to their schedules, and did great work."

Matthew R on October 2025


Avatar for Mad City Windows & Baths

Mad City Windows & Baths

4.82(
2,704
)
Approved Pro

Mad City Windows & Baths

4.82(
2,704
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
274 local quotes requested

We are the premier home improvement company in Madison, Green Bay, Milwaukee & throughout Wisconsin with years of experience and countless home improvement projects to prove it. We’re locally owned and operated so we know what works best in this climate and we choose quality products designed with Wisconsin area homeowners in mind. Whether you need replacement windows, vinyl siding, bathrooms, or metal roofing our professional installers will leave your home looking great.

"We were very happy with the finished look, as my wife wanted the new cabinets to match our existing wood trim."

Dennis M on June 2025

We are the premier home improvement company in Madison, Green Bay, Milwaukee & throughout Wisconsin with years of experience and countless home improvement projects to prove it. We’re locally owned and operated so we know what works best in this climate and we choose quality products designed with Wisconsin area homeowners in mind. Whether you need replacement windows, vinyl siding, bathrooms, or metal roofing our professional installers will leave your home looking great.

"We were very happy with the finished look, as my wife wanted the new cabinets to match our existing wood trim."

Dennis M on June 2025


Avatar for BIG DAVE'S SERVICES

BIG DAVE'S SERVICES

4.13(
112
)
Approved Pro

BIG DAVE'S SERVICES

4.13(
112
)
Approved Pro
Customers say: Quality work
23 years of experience
Emergency services offered

Why Choose Big Dave’s? To state it as clearly as possible, we’re not the right fit for everyone. We’re not the fastest. We’re not the cheapest. But our clients say, we are the best! We absolutely insist on doing things right the first time. No excuses. Period. If you are demanding, hard to please, and/or persnickety, we’ll get along great. We refuse to settle for anything less than the very best, and our clients appreciate our attention to even the smallest detail. Contact us today to get the process started!

"The very best thing about Big Dave's is that he shows up when he says he will, he does the job we agreed on, and he cleans up after himself. Very different from any other GC I've dealt with in nearly forty years. Superior work at all times; fixes issues when required without question or demur. I'll have no other GC darken my doors ever again."

John B on September 2023

Why Choose Big Dave’s? To state it as clearly as possible, we’re not the right fit for everyone. We’re not the fastest. We’re not the cheapest. But our clients say, we are the best! We absolutely insist on doing things right the first time. No excuses. Period. If you are demanding, hard to please, and/or persnickety, we’ll get along great. We refuse to settle for anything less than the very best, and our clients appreciate our attention to even the smallest detail. Contact us today to get the process started!

"The very best thing about Big Dave's is that he shows up when he says he will, he does the job we agreed on, and he cleans up after himself. Very different from any other GC I've dealt with in nearly forty years. Superior work at all times; fixes issues when required without question or demur. I'll have no other GC darken my doors ever again."

John B on September 2023


Avatar for Tairi Construction

Tairi Construction

5.00(
6
)
Approved Pro

Tairi Construction

5.00(
6
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
98 local quotes requested

At Tairi Construction we stand with our customers. We strive to make your fantasies a reality, by specializing in all aspects of home remodeling. The services that we provide are: painting, hard wood and laminate flooring, complete kitchen and bathroom remodels, full Rec room remodel, tile work, and shower installs that will take as little as one day! For any and all inquiries please contact us at (414)376-7377

"Joe and his team were the first to respond after the Milwaukee floods happened in August 2025. Him and his team went above and beyond to clear out all of the debris in the basement, fully cleaned the basement, and applied mold remediation to the wooden beams. They also fully rebuilt our stairs and removed and replaced our egress window. Thank you so much Joe and team!"

James M on September 2025

At Tairi Construction we stand with our customers. We strive to make your fantasies a reality, by specializing in all aspects of home remodeling. The services that we provide are: painting, hard wood and laminate flooring, complete kitchen and bathroom remodels, full Rec room remodel, tile work, and shower installs that will take as little as one day! For any and all inquiries please contact us at (414)376-7377

"Joe and his team were the first to respond after the Milwaukee floods happened in August 2025. Him and his team went above and beyond to clear out all of the debris in the basement, fully cleaned the basement, and applied mold remediation to the wooden beams. They also fully rebuilt our stairs and removed and replaced our egress window. Thank you so much Joe and team!"

James M on September 2025


Avatar for GR General Contracting LLC

GR General Contracting LLC

4.86(
29
)
Approved Pro

GR General Contracting LLC

4.86(
29
)
Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
102 local quotes requested

GR General Contracting can help you achieve your goal of creating the home you always wanted. As a general contractor we can handle most any project, from remodeling kitchens and bathrooms or finishing basements, to building additions and decks. With years of experience improving the homes of our community, we combine skilled craftsmanship with hard-working dedication to give your project the attention and care it deserves.

"My interaction with this company, represented by Gordon Rudd, was limited to a site visit only. Work that I thought might be needed turned out to be unnecessary. When I called the company, I reached Gordon directly, and he was able to stop by the next morning, right at the time we scheduled. He was very helpful in explaining what I was seeing. He didn't charge me anything for the very helpful visit."

BRETT C on August 2025

GR General Contracting can help you achieve your goal of creating the home you always wanted. As a general contractor we can handle most any project, from remodeling kitchens and bathrooms or finishing basements, to building additions and decks. With years of experience improving the homes of our community, we combine skilled craftsmanship with hard-working dedication to give your project the attention and care it deserves.

"My interaction with this company, represented by Gordon Rudd, was limited to a site visit only. Work that I thought might be needed turned out to be unnecessary. When I called the company, I reached Gordon directly, and he was able to stop by the next morning, right at the time we scheduled. He was very helpful in explaining what I was seeing. He didn't charge me anything for the very helpful visit."

BRETT C on August 2025


Avatar for 258 Renovations

258 Renovations

5.00(
5
)
Approved Pro

258 Renovations

5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
162 local quotes requested

Interior and Exterior remodeling company, located in south east Wisconsin. We pride ourselves in our work, from the outside of the home to remodeling inside big or small we are ready to help with your project. We are a small business and local to West Allis. We are offering free estimates on discounts for new clients. Reach out now and we can chat about your project and how we can help, if we can not help we will let you know.

"Fantastic experience! Mitch and the team were really great to work with. The work was done quickly and at a high standard, and Mitch was always open to discuss options and offer suggestions. Would definitely recommend this team!"

Sean W on February 2025

Interior and Exterior remodeling company, located in south east Wisconsin. We pride ourselves in our work, from the outside of the home to remodeling inside big or small we are ready to help with your project. We are a small business and local to West Allis. We are offering free estimates on discounts for new clients. Reach out now and we can chat about your project and how we can help, if we can not help we will let you know.

"Fantastic experience! Mitch and the team were really great to work with. The work was done quickly and at a high standard, and Mitch was always open to discuss options and offer suggestions. Would definitely recommend this team!"

Sean W on February 2025


"Best company in the area, I recommend them to everyone ❤️‍🔥"

Kenneth G on December 2024

Here to help you with all your home improvement needs you may have from remodeling, additions and more.

"Best company in the area, I recommend them to everyone ❤️‍🔥"

Kenneth G on December 2024


"Rick and Bob were very thorough, honest, and value quality in their work. I'm very pleased with the final product and would recommend their services to anyone."

Clint D on August 2024

Granzow Home Improvement, LLC is well known in the home improvement & remodeling industry, as a client-focused company that strives to ensure the highest levels of quality and customer satisfaction

"Rick and Bob were very thorough, honest, and value quality in their work. I'm very pleased with the final product and would recommend their services to anyone."

Clint D on August 2024


Avatar for Matrix Basement Finishing Milwaukee Metro

Matrix Basement Finishing Milwaukee Metro

4.10(
26
)
Approved Pro

Matrix Basement Finishing Milwaukee Metro

4.10(
26
)
Approved Pro
Customers say: Quick response
76 local quotes requested
41 years of experience

Since 2009, we’ve completed over 10,000 basement projects across Illinois, Michigan, and Wisconsin! Matrix Basement Finishing is proud to be ranked as the #1 basement finishing company in America, delivering premium quality and unmatched durability at an incredible value. Our advanced Forever Wall System is engineered to resist water, mold, and mildew, ensuring your finished basement stays beautiful and functional for years to come—something traditional materials simply can’t match. When you choose Matrix Basement Finishing, you’ll enjoy: - Flexible financing options backed by trusted national partners - A limited lifetime warranty for long-term peace of mind - Comprehensive, all-in-one service so you’ll never need to work with a third party - Expert installation by professional installers and design consultants With Matrix Basement Finishing, you get an exceptional product, outstanding service, and a finished basement you’ll love for life.

"It was a rocky start. Issues with communication. But In the end our basement turned out beautiful. Shout out to Susanna! She is amazing and so helpful! Thank you Matrix for getting the job done. "

Doriann V on October 2025

Since 2009, we’ve completed over 10,000 basement projects across Illinois, Michigan, and Wisconsin! Matrix Basement Finishing is proud to be ranked as the #1 basement finishing company in America, delivering premium quality and unmatched durability at an incredible value. Our advanced Forever Wall System is engineered to resist water, mold, and mildew, ensuring your finished basement stays beautiful and functional for years to come—something traditional materials simply can’t match. When you choose Matrix Basement Finishing, you’ll enjoy: - Flexible financing options backed by trusted national partners - A limited lifetime warranty for long-term peace of mind - Comprehensive, all-in-one service so you’ll never need to work with a third party - Expert installation by professional installers and design consultants With Matrix Basement Finishing, you get an exceptional product, outstanding service, and a finished basement you’ll love for life.

"It was a rocky start. Issues with communication. But In the end our basement turned out beautiful. Shout out to Susanna! She is amazing and so helpful! Thank you Matrix for getting the job done. "

Doriann V on October 2025


Avatar for PM SERVICES LLC

PM SERVICES LLC

4.00(
4
)
Approved Pro

PM SERVICES LLC

4.00(
4
)
Approved Pro
Customers say: Quick response
464 local quotes requested
11 years of experience

PM Services, LLC has been providing reliable general contracting work to the good folks of Milwaukee, Wisconsin. We have a down-to-earth approach that allows us to meet each client’s unique needs. We eliminate the hassle for homeowners and business owners by offering all of our services through one company. You don’t have to worry about going to multiple people for multiple problems.

"PM Services along with Jorge Thompson is a nagger. He left mess. They were not able to do job."

GREGORY Y on March 2022

PM Services, LLC has been providing reliable general contracting work to the good folks of Milwaukee, Wisconsin. We have a down-to-earth approach that allows us to meet each client’s unique needs. We eliminate the hassle for homeowners and business owners by offering all of our services through one company. You don’t have to worry about going to multiple people for multiple problems.

"PM Services along with Jorge Thompson is a nagger. He left mess. They were not able to do job."

GREGORY Y on March 2022

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Basement Remodel questions, answered by experts

Making a window in a basement larger costs an average of $4,200. You’ll need to pay an average of $550 to have a structural engineer plan the project, $500 to $1,500 for the installation labor, and an average of $2,200 for the excavation and window well installation. The remainder will go toward pulling permits, installing trim, and repairing drywall on the interior.

Renovations that add functionality or more comfortable floor space generally add the most value when remodeling your home. Attic or basement finishing can add floor space without altering the home's structure, saving you renovation money while adding valuable space. Smaller improvements, such as installing smart-home components or replacing entry doors and windows, also experience high ROIs. 

Although homeowners often use the terms basement remodeling and basement finishing interchangeably, they are quite different terms. 

Finishing a basement is the process of taking a basement space that is not habitable and adding elements to make it usable. This includes adding plumbing, flooring, and insulation.

Remodeling a basement means taking an already existing finished basement and changing it, often by adding or removing walls, adding plumbing, or changing the existing flooring.

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.

In most cases, a contractor will ask you for a deposit that is a percentage of the total cost of your job, but you should never pay in full before work has begun. The up-front cost could be as much as 50%, or you might give a contractor as little as 10% up front. Discuss payment terms with your contractor before they begin the job to avoid surprises.

The Sussex, WI homeowners’ guide to basement remodels

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

What do you need done? We’ll find top pros.
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