Serving Janesville, WI and surrounding areas
Approved
Super Service Award Winner
In business since 2000
Free estimates
Emergency services offered
"They did a wonderful job, we’re very professional, follow the timeline they gave us. It was a wonderful experience."
+28
Serving Janesville, WI and surrounding areas
Approved
In business since 2019
Free estimates
Small jobs welcome
"Responded promptly and the work was done promptly. Very good craftsmanship."
Serving Janesville, WI and surrounding areas
Approved
Super Service Award Winner
Customers say: Quality work
"Granzow Home Improvement LLC exceeded all expectations in finishing our basement, and we couldn’t be happier with the results! From start to finish, Richard and Bob displayed professionalism, skill, and a genuine passion for their craft. The attention to detail was incredible—from the high-quality materials used to the flawless execution of every feature. They transformed our basement into a beautiful, functional space that feels like an extension of the rest of our home, not just an afterthought. Whether it was customizing a plan to fit our needs or ensuring seamless design transitions with the same materials used when our home was built, they listened to our ideas and brought them to life perfectly. Beyond the craftsmanship, they were punctual, respectful, and kept the work area tidy throughout the project. Richard communicated with us every step of the way, ensuring there were no surprises and that we were thrilled with the progress. If you’re looking for a reliable, talented contractor to bring your vision to life, look no further than Granzow Home Improvement LLC . We wholeheartedly recommend them and would hire them again in a heartbeat! Thank you, Richard and Bob, for making our dream basement a reality!"
+38
Serving Janesville, WI and surrounding areas
Approved
Free estimates
Emergency services offered
Credit card accepted
"No-show. He forgot."
+15
Serving Janesville, WI and surrounding areas
Approved
In business since 2001
Free estimates
Warranties offered
"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."
+58
Serving Janesville, WI and surrounding areas
Approved
In business since 1984
Free estimates
Credit card accepted
"Matrix did a great job finishing my basement. It looks great, and we are very happy with the finished product."
+12
Serving Janesville, WI and surrounding areas
Approved
In business since 2003
Free estimates
Credit card accepted
We have the experience and dedication to do the job right the first time! We guarantee your satisfaction, and we won't leave until the job is done right. Call to schedule an estimate today! May contact through email.
Serving Janesville, WI and surrounding areas
In business since 1999
Free estimates
Warranties offered
"It was very good. They were very knowledgeable. They fixed the problem that we had."
Serving Janesville, WI and surrounding areas
In business since 1975
Free estimates
Warranties offered
"The company looks for ways to nickle and dime you - stay away. They charged us $500 to remove two bolts on a tub."
Serving Janesville, WI and surrounding areas
In business since 2003
Free estimates
Warranties offered
We combine excellent design & creativity with technical, construction, & managment expertise to deliver inspirational spaces that work!
From average costs to expert advice, get all the answers you need to get your job done.
Planning a home addition? Discover what to expect during the process, including design choices, permits, construction timelines, and key factors that impact your project’s success.
Looking to vault a ceiling? Here’s how much it costs, what factors affect cost, and what to expect.
Discover how much porcelain countertops cost to install based on factors such as their size, materials, add-ons, and local labor rates.
Budget for bedroom remodel costs based on factors such as bedroom size, remodel type, features, materials, labor, and more.
Use this guide to budget for kitchen island costs, including island style and shape, customizations, countertop options, professional labor, and more.
Budget for sunroom addition costs based on factors such as room type, site prep, professional labor, features, permits, prefab vs. custom designs, and more.