Fixing a Bowing Basement Wall

Fixing a bowing basement wall ANSWERED!

How to Fix a Bowing Basement Wall is to CONTACT KING PIERS!



  1. The first thing to do is to determine if the wall is bowing bad enough to warrant severe methodology to fix it. Use the rule of thirds. The easiest way to do this is to take a straight 2×4 that goes from floor to ceiling and put it against the wall. Use a level to plumb the board. Now measure the gaps at the top and bottom of the level between the level and the wall. If the gap is more than 1/3 of the overall height in inches, you need to fix this problem… yesterday.
  1. Now that you have determined that your wall needs to be fixed, start by removing all of the fill on the outside of the house that is against the bowed wall. The dirt should be removed at least 4′ back and all the way down to the wall footing. Use a mini excavator to remove most of the dirt. ALWAYS HAVE DIGGER HOTLINE COME OUT AND MARK YOUR UTILITIES before ANY DIGGING!!! Use a shovel and a push broom to clean any dirt off of the foundation wall. Then let dry for a few hours.
  1. Now that the foundation wall is clean and dry you are ready to apply an elastomeric waterproofing material. This material is paint but acts as waterproof. This product is used on roofs and siding as a seamless way to keep water out. Paint on 2 coats and let the coating cure for about 4 hours.
  1. now you need to drill large 1″ holes through the foundation above and below the crack in lines about 4′ apart. The holes should go all the way through. Once the holes are drilled, insert one end of one of the rods with the threaded end, in through the holes. Slide the foundation plate over the rod, screw the nut on the plate, and secure the nut firmly by hand. Now go outside and secure the anchor system that comes with the rod. DO NOT FORGET TO INSTALL THE OUTSIDE FOUNDATION PLATE!!!
  1. Now it is time to put 3 more coats of your elastomeric waterproofing over the foundation. Make sure you get the areas with the wall plates especially well.
  1. Now lay a piece of perforated 6″ drain tile against the foundation footing. You will then dig underneath an area of the footing wear the drain tile will go under your basement slab into a sump pit. Here is some info on how to install a sump pit.
  1. Now you are ready to backfill the dugout area. Use 3/4″ wash stone in the entire area. Use a plate compactor every foot to make sure the gravel compacts properly. Once the gravel is about halfway up the wall and the anchors are buried in a few feet of gravel, go inside with some friends and turn the nuts. Use an impact wrench for quick and easy turning. make sure you distribute between the anchors when you turn them. Once the wall is plumb, go back outside and keep backfilling. Do not fill the last foot.
  1. Now lay down some filter fabric overlapping all seams at least 6″. Then backfill the rest of the way with dirt. Use grass seed and straw after you have raked the yard so that there is a slight slope away from the house