Grandhaven LLC has worked with KJN Builders for 20+ years. Our property encompasses 167,000 square feet of retail, restaurant & office space. KJN Builders (Jim Lewein) is the call I make for any and all building issues including: roofing, masonry, drywall, white box build out, flooring, electrical, painting, plumbing, windows & doors, sump pumps, drain tile, sidewalk repair and MORE.

Jim and his sons Nick and Jake respond promptly and handle each issue personally. Jim ALWAYS follows up each job with a personal call to be sure everything went as planned, he is on site often during projects and many times he is the one doing the work. His subcontractors speak very highly of him and respond quickly when he calls them.. Jim makes my job as a property manager so much easier because I know I can trust him. He has proven over & over again that he is a man of his word, a man of integrity and a man who takes great pride in his work.

When you work with KJN Builders you can expect that your job will be done on time, on budget and completed with the highest level of attention to detail and pride.

We had the pleasure of working with KJN on 2 separate remodeling projects. We were so pleased with our upstairs remodel and updates in Spring 2016, that we had them back to remodel our entire first floor in the Fall of 2018. We were assured a high-quality product at a fair price and that was delivered 100% both times!

Jim was able to take our ideas and designed updated spaces that adhered to what we envisioned and also suggested options that we are so glad we incorporated.

I have had the pleasure to work closely with KJN Builders over the past several years and they are an outstanding carpentry company. Their workmanship is top notch, and they are extremely efficient. If or when a problem might arise, they are both willing and able to solve and remedy the situation. KJN Builders are my go-to contractor and have my highest recommendation.

I have been using KJN Builders for buildouts on all my commercial properties for the past 8 years+. They always provide top quality work at a very efficient pace and with a fair price. They have provided everything from challenging medical buildouts to simple modifications and everything in between. I would highly recommend them to anyone looking for commercial construction or buildout work.

We were pleased with the work Jim and KJN completed for us! The team worked through numerous head-winds (supply chain delays and record high inflation) to help us open on-time and on-budget. The work was thorough and Jim was so helpful in solving any issues that came up. We're appreciative of Jim and his team!

I was lost when my husband and I started talking about remodeling our kitchen. Then KJN Builders took the burden off our shoulders. Jim saw our vision for the kitchen and guided us through the steps. Jim and his sons did the work and it was not subcontracted out. Jim was great with communicating and explaining what would work or not work. We loved their work so much that KJN Builders remodeled our 2 bathrooms, one being the master bath. We couldn't be happier with all the work they completed for us.

When we set out to remodel our kitchen, we established a budget. We had done our research and had heard several "nightmare" stories about remodelers that took too long and exceeded the costs that were established for the remodel. After researching several remodeling contractors, we decided to work with KJN builders. Our project involved switching the locations of a window and our back door leading to our backyard. It also included the addition of an island, new cabinets, and a new floor. We had our own ideas in mind but after meeting with Jim and his sub- contractors they proposed the idea of an island and moving an entrance to the kitchen. which we never considered. These were the right ideas, and it was within the budget we had set. What impressed us was the professionalism of the KJN team along with the subcontractors. They kept us informed and offered suggestions that were within our budget. We were presented with a schedule that allowed us minimal disruptions in our home (considering the project). They were on time, professional, courteous and the quality of work was exceptional. Jim kept everyone involved on schedule and checked the work that was done to make sure it was done right. We would and have recommended KJN builders to other people looking to remodel their home.

Jim and his team are consummate professionals who do the job right! Jim, Nick and Jake are all conscientious individuals who want you to be happy with your project.

Jim, is a straight shooter who takes pride in his work and follows up on everything to ensure ultra satisfactory results. I will definitely use Jim and his team again. A big project that when completed is exactly as we had envisioned only better.

This is the second time we have used KJN builders. Our first project was an expansive pool deck that 10 years later still looks as great as day one. Our most recent project was to have KJN finish the basement on our new home. KJN was able to take my hand-drawn floor plan and bring it to life on schedule and on budget. KJN is very good at listening and answering my questions, keeping us informed, and explaining the process and timeline to us. I appreciate their timeliness, quality of work, and checking in daily to oversee every aspect of the work being done. Our basement is amazing and the detail from the main level to the basement is seamless. KJN is a trust-worthy partner that I would highly recommend to anyone.

We loved working with Jim & the boys for our basement remodel project. Jim & the boys made the 4 hour drive to Crandon and put knotty pine through the basement.

They even brought their ceiling guy with to put a drop ceiling in. Just like our other home, the work was flawless and so beautiful. By far the best referral we have ever been given. Kitchen remodel coming soon! 🙂

The Master bathroom in our new condo was horribly out dated, poorly designed and badly built. We had a tight budget but Jim and the boys made it all come together. They worked around our difficult schedule and did a BEAUTIFUL job. The master bathroom now is a showplace.

The experience of working with a professional crew, dedicated to the quality of their work and the satisfaction of the customer was a relief in today's remodeling environment.

We are grateful we selected KJN Builders!

Jim Lewein and KJN Builders, Inc. have successfully built 9 restaurants for our company in the Milwaukee area. Jim and his staff exude a level of knowledge and expertise that simply inspires trust. They are easy to work with, attentive, and not only completed our projects on time but made cost-saving suggestions along the way while not sacrificing the quality or integrity of the projects.

I always enjoyed working with Jim, but the level of trust and his willingness to always help was invaluable to me. I absolutely recommend KJN Builders, Inc. as my contractor of choice.