Northern Illinois Waterproofing & Construction, Inc. in Arlington heights

Review 1 (2024-11-15 - Rating: 5)
Water in a finished basement is always a homeowners nightmare.So with a break in the rain I hit the web and found this gem. I also spoke to a friendWho used the business and said they were fantastic.I called and spoke to Dawn and she made arrangements to get a crew to me the following day (today) , Dawn couldn’t have been kinder or more understandingThis morning a crew showed at the agreed time. Mark , Matt and another gentleman.They got right to work and almost immediately located the monster foundation crack. It was an old one so they had a little more work to do. They treated my house like their own and were done in very reasonable amount of time even leaving me time to get other things done around the house.A huge thanks to all involvedGreat people , great work and a very fair price.If you need any work related to this field you’ve got to reach out to this great crewThanks again !Bob

Review 2 (2024-10-20 - Rating: 5)
Tldr: Quick, reliable, and honest.I called to get some cracks in my unfinished basement checked since they were close to important stuff like the furnace, water heater, etc. They came by the end of the week, and looked at all my concerns. They were honest about which ones were superficial and which were actual concerns. They also were able to see my sump pump had a bad switch and I didnt have any drain boards!Nobody likes spending money, but Id rather pay a professional whos going to do quality work whos going to get the job done right the first time. They were recommended by my neighbor who got seepage fixed, and theyre worth every penny!

Review 3 (2024-06-17 - Rating: 5)
Just fantastic! All it took was a quick call and sending some pictures to get a quote within hours for a sump/battery backup replacement and several cracks filled. We did not hesitate to use them over other companies that came out for quotes because Dawn answered all our questions and we could tell they are a long standing business that knows what they are doing. Mark completed the work and it was so clean and detailed, we couldnt be happier. Thank you!

Review 4 (2023-05-29 - Rating: 5)
We are so pleased with the service we received from owner Mark Olsen and his team. We just had our basement waterproofed with added drain tiles in several parts of our basement. One area needed a little additional attention and he came back to fix it no questions asked. We were recommended to Mark as doing great work at a honest price. We received exactly that! Thank you for your great service Mark and team! We will absolutely refer you to all our friends and family.Much Appreciation, Christina and Matt

Review 5 (2021-06-30 - Rating: 5)
Phenomenal.Called a bunch of places, these guys were the best. Dawn was amazing and so easy to work with. She was so helpful and patient with all of my inquiries.I discovered water in my finished basement shortly after buying the house (which was marketed as having a dry basement.) I wasnt sure what to do and after a year of weighing options, went with Northern Illinois Waterproofing. They could have easily taken advantage of my lack of knowledge but instead educated me. They proceeded to fix the water problem at a very affordable price.We have had some heavy rains since they have been out, and there has been no water. I honesty wish I could give them more than 5 stars. Outstanding.

Review 6 (2021-07-30 - Rating: 5)
Absolutely wonderful experience. We simply needed an old foundation crack re-sealed, it was a minor leak. Got a second opinion after US Waterproofing tried to bleed us with major repair - tearing out landscape, drywall, and air ducts. So glad I found this family run business - came out a day after calling, gave a super reasonable quote that was minimally evasive, and had it all said and done within a week. Great quality of work as there we major rain this week and not a single drop of water in the basement. My wife and I would strongly encourage everyone use this company. If it was possible to give more than 5 stars, we would in a heartbeat.

Review 7 (2022-02-25 - Rating: 5)
NIW has done multiple crack repairs for us over the years. We have been very happy with their services. They recently installed a new sump pit and pump at our newest home. They are friendly, fair, honest, and they stand behind their work. I would highly recommend them.

Review 8 (2023-03-05 - Rating: 5)
Called Friday afternoon at 4:30pm was out Saturday morning. Found that the company that did the work originally didn’t do the work correctly.Mark the owner of the of northern Illinois waterproofing repaired the leak in a few short hours. As I watched Mark explained everything he needed to do.

Review 9 (2023-05-01 - Rating: 5)
After many years I finally have a dry basement and so very greatful to Mark and his team.

Review 10 (2021-11-10 - Rating: 5)
Used them for window well repair. Excellent and reasonably priced.

Review 11 (2018-08-07 - Rating: 5)
Great experience with this company. Very knowledgeable and friendly.

Review 12 (2025-01-09 - Rating: 5)
Fantastic company. They have addressed two issues at our property. Most recently, we had a failed sump pump on New Years Eve. They came out and installed a new pump and backup in the evening. Very few businesses would make that effort, and they really saved the day. Friendly and great to work with.

Northern Illinois Waterproofing & Construction, Inc.