Get matched with top foundation, basement or crawlspace waterproofing / encapsulation pros in Monticello, MN

"Awesome 🤩 was/is James Nelson, Design Specialist with American Waterworks, out of the Fargo, ND office was absolutely wonderful to work with. (Really this Company has impressed us from the beginning!) always quick to respond and very patient…. There was zero pressure …. no pushy sales tactics at all — just good information, very clear explanations, and genuine care. He took the time to answer questions, explain good options, and made us feel comfortable and valued as people, not just potential customers. From the very beginning, And even now after James has been yet kind and incredibly understanding of our situation. Unfortunately We are not able to move forward with our basement project at this time, and James has showed nothing but grace and respect about that. No doubt that James is a true professional and a rare find these days. We absolutely 💯 Highly, highly recommend James and American Waterworks And Solutions… We thank you!!"

"Beware: Overbilling, bait-and-switch, and Miscommunication I hired Groundworks (Saint Paul, MN) in June 2025 for a combined structural support and waterproofing project at my home. The project was advertised as a complete solution to address foundation wall deterioration and structural support. What happened: The contract and engineered plans explicitly called for cast-in-place (CIP) footings for each I-beam and a vapor barrier. I paid for these as part of the $70,000 project. After the work was completed, I discovered the CIP footings, vapor barrier, and other items were not installed, despite being billed and included in the plans. The installed I-beam system does not support the weight of the house, only lateral wall movement. This was not explained during the sales process. When I asked for clarification, I was told ?site conditions vary from the plans,? but no specific conditions were identified. Revised as-built plans were submitted instead after I raised concerns "

"Safe Basements have been a complete joy to work with, the customer service was professonal and friendly. The assesser was honest, no up selling or down selling. They finished the project 2 weeks after booking. The workmen were effiecent, made sure to cover everything so nothing got covered with dust, they even swept! It got done in exactly the time required and the basement has never looked better. If you need basement work, I couldn't recommend anyone higher."

"The project eventually got finished. Might have been a little more complicated to get started on as it required the city and contractor to communicate seeing as it was a city renovation program. Things I?d like to go better is cleanup and mitigation of dust. It was limited to whatever steps I took. The pump has to be reset 1 to 2!times through a span of 60 days or so. Not sure if that?s normal and to be honest I haven?t yet reached out or looked into this on my side. Aside from that Mr Brown was easy to talk to and respectful as was his workers. When the work finally started to was down quickly. There were parts that could have gone better but it could have gone worse. I won?t say I wouldn?t recommend them at the same time I think there?s something?s that could definitely improve upon. And to add it did pass City of Plymouth inspection and their requirements for the program. I?ll have a better idea of how this works out in the future."

"Lewis Insulation came out for work on my home for ice dam issues. Lewis Insulation was to air seal our attic and add insulation. We decided to move forward. Lewis Insulation allegedly performed the work, but unfortunately the ice dam issues persisted. In short, we flushed thousands down the drain by going with Lewis Insulation. Xcel energy performed a home energy audit for us after Lewis Insulation performed the work. The Xcel home energy audit revealed that air sealing was missed during the air sealing process. After confronting Lewis Insulation, the team claimed some of these areas were inaccessible. This includes our furnace flue, which gives off a ton of heat in the winter. For those who may not be aware, this is egregious because of how much heat comes off that pipe. At no point did Lewis Insulation inform me that they were unable to air seal specific areas, including the flue. Lastly, they failed to insulate our basement rim joists properly. In short, we paid to have the team air seal our home and help with ice dams. They failed to eliminate the ice dams, and Xcel suggested we get our home air sealed again. I cannot recommend this company to anyone."

"This company is amazing. I would highly recommend them for anyone seeking to evaluate their own home or to look into future home purchases. I have a 100 year old home with several challenging drainage areas, that are hard to address. I really appreciate the way they thought through the problem holisitically and helped me to come up with a a reasonable plan. They also helped me to avoid some advice by a Basement Repair firm that would have not been helpful."

"I appreciated the accurate estimate for the work as well as the advice on preventing it from happening again. The crew arrived on time and raised the walkway section so it’s level now. They also caulked between the driveway and garage slabs."

"Sandau Construction recently completed a window replacement project at my home. They were one of five contractors that I had out to evaluate my project and bid the job. The sales presentation was low pressure, comfortable and offered adequate time for question and answer. The company’s subsequent follow-up to the various questions and issues that I had was prompt, direct and informative. They never tried to “sell” me anything and focused solely on my desires and priorities. Their overall project pricing was competitive overall, versus the other contractors who visited. Pricing was clear and upfront and included no promotional games or gimmicks. With any major home improvement, one doesn’t want to overpay just to ensure quality. The Sandau Price to Quality dynamic was right where it needed to be. Given the high home improvement demand that has been experienced during the pandemic, along with supply chain issues, there was a very lengthy delay from the project down payment to the actual commencement of the job. Once underway, the project installation proceeded quickly. Installers were skilled, agreeable and proceeded in an efficient manner. The final results exceeded expectations. As window replacement is a major investment and expense for any homeowner, getting that all important comfort level from the contractor you’ve chosen is critical. I felt good with my initial selection and was also rewarded at the project’s conclusion. I highly recommend the company to anyone who is interested in a high quality experience in sales, service and product offering. Thanks both to Graham in Sales and to Stephen my Project Manager. Well done."

"Platinum was excellent to work with. I have worked with them in the past as well. They are responsive, and the communications are both thorough and prompt. They always showed up when they said would, and they did what they said they would do. The project was completed quickly (but without shortcuts), and we actually came in under budget. I recommend them highly."

"Aaron and his team were great to work with and very professional. I would highly recommend them to anyone."