Reliability, Quality, Accuracy
Looking for a reliable remodeling contractor in the Greater Lansing area? J Squared Builders specializes in high-quality home renovations, remodeling, and new construction. From kitchens and bathrooms to flooring, additions, and custom 3D design planning, we bring your vision to life with expert craftsmanship and attention to detail. Have a project in mind? Explore our portfolio and schedule a consultation today.
BATHROOM RENOVATIONS
Bathrooms might seem like a complicated job, but no matter what project you have in mind, trust our team to help you bring your vision to life. We’ll take care of every aspect of the job, from design to completion, with your budget in mind. Get in touch to learn more.
KITCHEN RENOVATIONS
Kitchen Remodels are the best way to really make your house feel like home. J Squared Builders would be happy to design your new kitchen. We can help make, what can be an overwhelming process, enjoyable. Would you like to learn more about what we can do for you? Call us today to get a quote.
HOME ADDITIONS
Whether you want to add on a four seasons room or that extra bedroom for your growing family, we are ready to make planning easier. With over 20+ years in construction there isn’t a project we can’t do! Call us today to set up a consultation.
DECKS & PATIOS
When you request a service from J Squared Builders LLC, rest assured that our team will go above and beyond to meet expectations. We’ve done many outdoor treated and composite decks. We also do retaining walls and patio pavers. Feel free to contact us for a consultation. We would love to help you with the design for your new outdoor escape!
About Us
Jantzen and Ashley are the husband-and-wife team behind our company, combining decades of hands-on construction experience with real estate expertise to help clients transform their homes. Jantzen is a licensed builder and has worked in the construction industry for over 30 years. Known for his extreme attention to detail and craftsmanship, he takes pride in delivering high-quality work that stands the test of time. While our specialty is renovations and home transformations, we also offer a full range of construction services. Ashley brings a unique perspective by combining her real estate license with years of carpentry experience. She loves helping clients see the potential in a property—whether that means preparing a home for the market, finding the perfect new home, or reimagining a space through 3D Design. Together, we provide a true one-stop experience for homeowners. From finding the right home, to renovating it into exactly what you envision, we guide clients through the entire process with expertise and care. As a family-owned business, we understand how important a home is. Jantzen and Ashley are proud parents of four kids and bring the same values of hard work, honesty, and attention to detail into every project and client relationship.
Link to Ashley's RE/MAX Real estate agent page
GET A QUOTE
To request a consultation and quote for any of our services we offer, please send an email with a brief description of your needs or give us a call at 517-980-1173. We'll get back to you promptly with all the information you need and to schedule a time for your consultation. We look forward to the opportunity to work with you on your home renovation.
ADD A TESTIMONIAL
How did we do?
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Linda Fulk
Jantzen and Ashley just finished our deck, the small front entry decking and shiplap above our fireplace. They did an amazing job and were great to work with. They work hard, are very meticulous and go above and beyond to make sure their clients are happy with the finished product. We plan to have them complete future jobs for us and very highly recommend them to our friends. We are also happy to call them new friends.
Reinhard & Renee'
Schwienhorst
J Squared made our kitchen renovation dream come true, from beginning to end. The process included moving and removing walls, and the project completely reinvented the functionality of our living space. They took our ideas to all new heights, while working within our budget. From their creative vision and design, attention to every imagineable detail, and expert craftsmanship, J Squared does not disappoint! They are an absolute pleasure to work with. We have, 100%, confidently, referred them to family and friends, who have been equally impressed. We look forward to having them return for any and all future upgrades to our home!
Denny & Diane
Olmstead
J squared builders did an outstanding job remodeling our kitchen. They create unique design with function. Very fair; excellent quality of work; creative and meticulous.. We would highly recommend them without reservation.
Pam Robison
Jantzen Cowan and his team did a phenomenal job in my home renovation. His dedication to detail and perfection made my home look beautiful. Jantzen was always kind and patient with my decisions and consistently went the extra mile to accommodate. You won’t find a better contractor or nicer person.
Justin Dillon
I've had two major projects done with this company and I'd recommend them to anyone. Jantzen and Ashley are exceptionally gifted in their craft. Their attention to detail and professionalism is top notch. Working with them is like having family in your home. They are both very genuine people who i love working with. On both occasions their work has exceeded my expectations. I couldn't be happier to give them my business. You won't regret hiring them.
Randa Hughes
Wonderful job on my renovated bathroom.!! It is so beautiful it makes me want the whole house refinished. Ashley and Jantzen are so professional and they add there own set of beauty to every project. You won't be sorry you hired them. Thank you again Ashley and Jantzen
Dave McCardel & Kate Holan
We have had Jantzen and Ashley complete two projects for us. First was a two story addition including a full kitchen remodel. Then they designed and built our huge rear deck. Their attention to detail was excellent. But what set them apart was the design creativity, and the ability to adapt on the fly as things change. And they always do! Their constant positive attitude everyday made the process of construction bearable and at times fun. I would recommend them highly, and we have!
Mike & Anne Voorheis
Jantzen and Ashley did an outstanding job on our front porch. They replaced current wood porch with Trex and it looks amazing! Their price was very competitive and they are wonderful to work with. We could not be happier.
Jeremiah Mankoph
J Squared Builders are far and away the best team I have ever worked with! Their attention to detail and amazing design ideas made my remodel, actually, fun! I now have my dream bar...
Deb Langdon
Another company did work resulting in damage. Repairs were going to be costly so the owner of the company asked Jantzen for a favor and do the job. Well, I benefited from that favor. Jantzen and Ashley went beyond the required repairs and I could not be happier with the results. Many thanks to them for making someone else's mistake more than right, but an excellent experience. You have my highest recommendation.
Bill & Danita Brandt
Jantzen and Ashley did a fantastic job on our screened porch. After listening to us and making suggestions, they built exactly what we wanted. They went above and beyond, working out in the cold during November and December, even on Thanksgiving Day! Because they spent so much time searching for the perfect trim pieces, door, screening, etc., the final product is so much more than we envisioned. They are such perfectionists, giving attention to every detail. They were very professional and at the same time, fun to have around. We would definitely use them again and highly recommend them for any home remodel project.
Erin Hagen
We loved the work and professionalism Jantzen and Ashley brought to the job. Fabulous work! Highly recommend!
Matt McLeod
My experience with Jantzen and Ashley surpassed my expectations. From the design process to the execution of the project, the process was done with thoughtfulness , superior quality and attention to detail. From the onset of my remodel Jantzen and Ashley kept the project moving always keeping me informed and at the end of the day would keep the work area clean and orderly ready for the next day. I thoroughly enjoyed having them around and will most definitely use them for my next project!
Gloria Stragier
J Squared Builders recently completed two completely different projects for me with excellent results on both! They replaced my front entry porch and steps using Trex and did some remodeling of my master bath. I am very pleased with the finished results on both projects. Ashley’s creative suggestions were especially appreciated! Ashley, Jantzen, and Jason were all very professional, easy to work with, and were willing to do whatever was necessary to meet my expectations. I certainly would hire them for future projects and highly recommend them.
GET IN TOUCH
We'd love to hear from you
517-980-1173
