We are the basement experts.


If you have suffered from a flood, sewer back up, fire we can help. You can hire any contractor you want for any of your insurance claims. We have been approved by insurance companies since we offer competitive pricing and good quality work. We remove all molded or bacteria infested interior studding, lower plates, drywall etc. We dont just spray over the wood we remove it the way it should be done. Call dan today for a prompt courteous service


Just before Halloween 2010, I was looking for someone to install weeping tile and blueskin around my block basement and put in a sump pit as well.  I wanted to complete the work before the winter, so that I could finish my basement during those months and not have to wait until the spring/summer.  I had a commitment from another local firm to complete the job, but they cancelled on me at the last minute.  I had already done some prep-work, and was left hanging.


With the window of good weather rapidly closing, I was very fortunate to find DSI Contracting, and they agreed to take on the job.  Dan walked me through exactly what he recommended, how long it would take and gave me a detailed estimate of the cost.

I was very pleased with the results.  Even though he encountered a few unforeseen issues during the job, and the weather wasn't ideal, he completed the job on time and well within in the estimated cost.  He even took digital pictures and emailed them to me, so that I could see exactly what was done.


Based on my experience, I would wholeheartedly recommend DSI Contracting for anyone considering a similar project.


Scott Giertuga




On May 28 2012 I experienced a flooded basement at my 3plex apartment building located at 284 N. High St in Thunder Bay. Thanks to DSI Contracting they came to the rescue and saved my recent $40,000 basement apartment renovation. I originally called Dan Oracz from DSI Contracting from the yellow pages in the Fall of 2011 to give me an estimate to install a complete weeping tile drainage system and waterproof my concrete walls. I called 3 other contractors and found that Dan was more noligeble and more caring about his clients. His price was still competitive with everyone else. I didn’t have the money at the time to do this and wasn’t super urgent so I neglected it. Was I ever sorry now, when the floods came on May 27th I had to keep a shop vac running 24 hours a day to minimize the destruction of my newly renovated apartment. I called the 4 contractors back and DSI Contracting was the only one that would still auwner there price from the fall so I hired him over the phone and he quickly came and started excavating around the basement to relieve the water pressure. He brought many unique tools and equipment specialized to this trade including electric water pumps, pressure washers etc. Dan and his team of workers worked long 12 hour days and completed the job in a week. He also installed a new sump pump system along with a drainage system (weeping tile), blue skin around the house. I could not believe the end result clean water being pumped out of my basement sump basin and away from my house down grade of course. The exterior ground at footing level was very muddy but DSI Contracting installed a filter system around my home that would not clog my new perforated pipe (weeping tile). No one else explained this to me or does not know how to install it properly but now my water is crystal clear. My basement is dry and no more leaks even with all this rain. I would highly recommend DSI Contracting and would not look else where  again. Please call my anytime if you wish to talk to me.


Adriano Tavares  




  • Basement Waterproofing & Weeping Tile

  • Drainage systems and sump pumps

  • Structural concrete block repair and replacement

  • Excavator - skid steer services

  • Flood restorations

  • Experts in concrete bowed wall straightening

  • General contracting


DSI Contracting has been working and helping home owners since 1997.