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Addition and remodeling pros in Janesville

True-Build
5009 Camden Road
5.00(
1
)
Approved Pro
True-Build
5009 Camden Road
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 years of experience

True-Build is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

"He did great work. Communicated very well."

Tom . on January 2021

True-Build is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

"He did great work. Communicated very well."

Tom . on January 2021


Avatar for Patio Enclosures - Madison
Patio Enclosures - Madison
W141N9296 Fountain Blvd
New on HomeAdvisorNew on Angi
Approved Pro
Patio Enclosures - Madison
W141N9296 Fountain Blvd
New on AngiNew on HomeAdvisor
Approved Pro
59 years of experience
Free onsite estimate

Patio Enclosures® brand sunrooms, solariums and screen rooms have been trusted by homeowners since 1966 and are renowned for their exceptional quality and craftsmanship. Every Patio Enclosures room is custom designed and custom manufactured specifically for you and your home. Whether you are planning to enclose an existing porch or patio space or add a whole new space while maximizing your view of the outdoors, Patio Enclosures screen and glass systems are an ideal choice for your home. And they're backed with a limited lifetime warranty. Our Patio Enclosures experts will assess your space, listen to your needs and make recommendations to design the perfect room for you and your home. Give us a call at 1-800-230-8301 to start your project today! We offer a free, no obligation in-home design consultation and estimate along with a wide range of affordable low monthly and no interest payment plans. To learn more about Patio Enclosures®, visit our website www.patioenclosures.com.

Patio Enclosures® brand sunrooms, solariums and screen rooms have been trusted by homeowners since 1966 and are renowned for their exceptional quality and craftsmanship. Every Patio Enclosures room is custom designed and custom manufactured specifically for you and your home. Whether you are planning to enclose an existing porch or patio space or add a whole new space while maximizing your view of the outdoors, Patio Enclosures screen and glass systems are an ideal choice for your home. And they're backed with a limited lifetime warranty. Our Patio Enclosures experts will assess your space, listen to your needs and make recommendations to design the perfect room for you and your home. Give us a call at 1-800-230-8301 to start your project today! We offer a free, no obligation in-home design consultation and estimate along with a wide range of affordable low monthly and no interest payment plans. To learn more about Patio Enclosures®, visit our website www.patioenclosures.com.


Ryan's Renovations, LLC
2121 S Stoughton Rd
5.00(
1
)
Approved Pro
Ryan's Renovations, LLC
2121 S Stoughton Rd
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
19 years of experience

Ryan's Renovations, LLC, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

"They do excellent work on time and under budget."

Andy x on March 2019

Ryan's Renovations, LLC, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

"They do excellent work on time and under budget."

Andy x on March 2019


Avatar for Mad City Windows & Baths
Mad City Windows & Baths
5020 Voges Road
4.74(
614
)
Approved Pro
Mad City Windows & Baths
5020 Voges Road
4.74(
614
)
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
5292 local quotes requested

To learn about Mad City Windows and its history, you need to start back in 1998 when our family-owned company first opened its doors and changed the face of home remodeling in Wisconsin. From the beginning, our business has been built on a foundation of friendship and trust and, in return, local homeowners have come to know they can place their trust in us. In order make certain that we consistently earn that trust, we are dedicated to ensuring the expert, seamless delivery of high-quality products and remodeling solutions to homeowners throughout our service area. Today, we expand our home remodeling expertise across Wisconsin, Minnesota, Iowa and Illinois. With over 50,000 completed projects, we take our 2+ decades of experience to serve the communities of Minnesota, Iowa and Illinois. They can expect our highest standard of service and professionalism.

"I love my walking shower."

Stacy R on April 2025

To learn about Mad City Windows and its history, you need to start back in 1998 when our family-owned company first opened its doors and changed the face of home remodeling in Wisconsin. From the beginning, our business has been built on a foundation of friendship and trust and, in return, local homeowners have come to know they can place their trust in us. In order make certain that we consistently earn that trust, we are dedicated to ensuring the expert, seamless delivery of high-quality products and remodeling solutions to homeowners throughout our service area. Today, we expand our home remodeling expertise across Wisconsin, Minnesota, Iowa and Illinois. With over 50,000 completed projects, we take our 2+ decades of experience to serve the communities of Minnesota, Iowa and Illinois. They can expect our highest standard of service and professionalism.

"I love my walking shower."

Stacy R on April 2025


Avatar for Matrix Basement Finishing Madison
Matrix Basement Finishing Madison
N57W14502 Shawn Circle
4.40(
30
)
Approved Pro
Matrix Basement Finishing Madison
N57W14502 Shawn Circle
4.40(
30
)
Approved Pro
Customers say: Quality work
12 local quotes requested
41 years of experience

We offer high quality basement, bathroom & garage remodeling backed by excellent service and a lifetime warranty. Expect nothing less than high value remodeling with Matrix Home Solutions. We work within your budget to create a space that is as functional and durable as it is beautiful. With Matrix, you will receive a free one-on-one design consultation and precision pricing. Locally owned and operated, we are known for our prompt service and attention to detail. Be sure to give us a call today!

"Matrix did a great job finishing my basement. It looks great, and we are very happy with the finished product."

John C on May 2025

We offer high quality basement, bathroom & garage remodeling backed by excellent service and a lifetime warranty. Expect nothing less than high value remodeling with Matrix Home Solutions. We work within your budget to create a space that is as functional and durable as it is beautiful. With Matrix, you will receive a free one-on-one design consultation and precision pricing. Locally owned and operated, we are known for our prompt service and attention to detail. Be sure to give us a call today!

"Matrix did a great job finishing my basement. It looks great, and we are very happy with the finished product."

John C on May 2025


Avatar for Matrix Basement Finishing Milwaukee Metro
Matrix Basement Finishing Milwaukee Metro
N57W14502 Shawn Circle
4.19(
24
)
Approved Pro
Matrix Basement Finishing Milwaukee Metro
N57W14502 Shawn Circle
4.19(
24
)
Approved Pro
Customers say: Quick response
20 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.

"Basement was done with superb quality, and support from Matrix throughout the process, especially when we really got rolling in the project with our project manager"

M K on April 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.

"Basement was done with superb quality, and support from Matrix throughout the process, especially when we really got rolling in the project with our project manager"

M K on April 2025


Avatar for Kool View Company, Inc.
Kool View Company, Inc.
4701 Triangle Street
4.85(
10
)
Approved Pro
Kool View Company, Inc.
4701 Triangle Street
4.85(
10
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
22 local quotes requested

Since 1973, Kool View Company, Inc., has been providing homeowners with high quality, superior and affordable home improvement products. We are the most experienced sunroom contractors in Wisconsin, having put up over 1,500 sunrooms in Wisconsin and Illinois. If you have a unique design in mind for your new patio or sunroom, you have come to the right place! With our expert engineering, constant research and development, along with our trained staff of designers and craftsmen, Kool View Company, Inc., is in the position to make your dream room an energy efficient reality. Kool View Company, Inc., also specializes in replacement windows, window treatments and basement remodeling helping you both enhance the interior and exterior of your home. Whether you are looking to improve your homes curb appeal, increase outdoor living space or reduce energy costs,Kool View Company, Inc., can make your turn your dream home into a reality.

"Great to work with. Very happy with the finished project. Would use them again."

Peter B on October 2022

Since 1973, Kool View Company, Inc., has been providing homeowners with high quality, superior and affordable home improvement products. We are the most experienced sunroom contractors in Wisconsin, having put up over 1,500 sunrooms in Wisconsin and Illinois. If you have a unique design in mind for your new patio or sunroom, you have come to the right place! With our expert engineering, constant research and development, along with our trained staff of designers and craftsmen, Kool View Company, Inc., is in the position to make your dream room an energy efficient reality. Kool View Company, Inc., also specializes in replacement windows, window treatments and basement remodeling helping you both enhance the interior and exterior of your home. Whether you are looking to improve your homes curb appeal, increase outdoor living space or reduce energy costs,Kool View Company, Inc., can make your turn your dream home into a reality.

"Great to work with. Very happy with the finished project. Would use them again."

Peter B on October 2022


Avatar for Five Star Bath Solutions of Rockford
Five Star Bath Solutions of Rockford
1890 W Chrysler Dr Unit A
5.00(
9
)
Approved Pro
Five Star Bath Solutions of Rockford
1890 W Chrysler Dr Unit A
5.00(
9
)
Approved Pro
Customers say: Quick response
35 local quotes requested
2 years of experience

Five Star Bath Solutions of is the top-of-the-line bathroom remodeling company. We’ve earned this title by using advanced technology, custom products, and attention to customer service. Using innovative software, Five Star Bath Solutions professionals will deliver a detailed estimate for your bathroom renovation project at an affordable price. We believe in setting standards for how projects are estimated, installed, and completed and passing that value on to you.

"Everyone that we dealt with couldn?t have been nicer. We had a tub to shower conversion which was completed in one day. Matt, the installer, laid a tarp down from the door to our bathroom to protect the floors. He asked for our input when he was installing the shelves and grab bars. After he finished cleaning everything up he explained how to used the new shower head and what to use to clean the surface. The next day we texted him with a question and he immediately answered. We couldn?t be happier with the job done and the professionalism of the company."

Faith H on February 2025

Five Star Bath Solutions of is the top-of-the-line bathroom remodeling company. We’ve earned this title by using advanced technology, custom products, and attention to customer service. Using innovative software, Five Star Bath Solutions professionals will deliver a detailed estimate for your bathroom renovation project at an affordable price. We believe in setting standards for how projects are estimated, installed, and completed and passing that value on to you.

"Everyone that we dealt with couldn?t have been nicer. We had a tub to shower conversion which was completed in one day. Matt, the installer, laid a tarp down from the door to our bathroom to protect the floors. He asked for our input when he was installing the shelves and grab bars. After he finished cleaning everything up he explained how to used the new shower head and what to use to clean the surface. The next day we texted him with a question and he immediately answered. We couldn?t be happier with the job done and the professionalism of the company."

Faith H on February 2025


Avatar for Quality Building & Remodeling, LLC
Quality Building & Remodeling, LLC
904 Blaine Street
5.00(
1
)
Approved Pro
Quality Building & Remodeling, LLC
904 Blaine Street
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
24 years of experience

We bring old-world, quality craftsmanship to every unique project we take on. We specialize in a variety of home improvement projects. We work efficiently with our resources to ensure your project is completed on time and on budget. We look forward to building strong, long-lasting relationships with our clients and guarantee your satisfaction.

"Rick is a true pro. He kept us informed of his schedule and worked our last-minute job in. He was friendly and gave great service. The new door looks fantastic!"

Eileen S on July 2018

We bring old-world, quality craftsmanship to every unique project we take on. We specialize in a variety of home improvement projects. We work efficiently with our resources to ensure your project is completed on time and on budget. We look forward to building strong, long-lasting relationships with our clients and guarantee your satisfaction.

"Rick is a true pro. He kept us informed of his schedule and worked our last-minute job in. He was friendly and gave great service. The new door looks fantastic!"

Eileen S on July 2018


Avatar for Matrix Basement Finishing
Matrix Basement Finishing
3050 N Kennicott Ave
4.55(
272
)
Approved Pro
Matrix Basement Finishing
3050 N Kennicott Ave
4.55(
272
)
Approved Pro
Customers say: Quality work
310 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.

"Efficient scheduling on builder trend! They did an awesome job cleaning up after themselves too! Ask to work with Ben as your project manager!"

Lana G on June 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.

"Efficient scheduling on builder trend! They did an awesome job cleaning up after themselves too! Ask to work with Ben as your project manager!"

Lana G on June 2025

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Showing 1-10 of 299

FAQs for addition and remodeling projects in Janesville, WI

The typical timeline for completing a garage-to-ADU conversion spans approximately three to six months, encompassing planning, permitting, construction, and final inspections. Projects requiring substantial structural modifications or encountering material delivery delays may extend beyond this timeframe. Working with an experienced general contractor who efficiently coordinates various trades and maintains consistent progress can significantly improve project efficiency and reduce unnecessary delays.

Converting a garage into an ADU typically requires obtaining building permits and potentially specialized electrical, plumbing, and mechanical approvals. Requirements vary significantly between jurisdictions, making consultation with local planning departments essential. Most municipalities mandate specific features, including dedicated entrances, proper emergency egress windows, and verification that the structure meets current residential safety standards. Proceeding without proper authorization risks potential penalties and complications during future property transactions.

California has implemented some of the nation's most supportive ADU regulations to address housing availability challenges. Recent legislation has streamlined approval processes, and local jurisdictions generally must approve projects meeting state guidelines. Nevertheless, individual municipalities may impose additional specific requirements regarding design, parking, or utility connections. Consulting with your local planning department remains essential for understanding the particular regulations applicable to your property.

Converting a garage to an ADU typically increases your property's assessed value, resulting in higher property tax obligations. The specific tax implications depend on your local assessment methods and how substantially the improvements enhance your property's value. While this represents an additional ongoing expense, many property owners find that potential rental income or increased property marketability offsets these higher tax obligations over time.

To qualify as a legal ADU, your converted garage must typically include a separate entrance, functional kitchen facilities, a complete bathroom, adequate natural light, proper ventilation systems, and full compliance with local building codes. Emergency egress provisions and appropriate climate control systems are also generally required. Many jurisdictions establish minimum and maximum size parameters, making consultation with your local building department essential for ensuring your conversion meets all legal requirements.

For many property owners, the potential rental income from a converted garage ADU makes the investment financially worthwhile. Monthly rental payments can help offset mortgage obligations or fund additional property improvements. The actual profitability depends on various factors, including local rental demand, the quality and size of your converted space, and your ability to maintain consistent occupancy. With careful planning and quality execution, many homeowners recover a substantial portion of their investment through ongoing rental revenue.

The Janesville, WI homeowners’ guide to addition and remodeling services
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