How To Fix Uneven Floors In House

If your house is built over a basement first inspect all of the basement support beams and posts where they meet the floor.

How to fix uneven floors in house. Concrete floors can also lift or sink if the soil underneath them shrinks settles or washes away. If your foundation is settling it may be lifting your concrete floor as it moves. Even if you re dealing with uneven floors in an old house steadying the foundation should be a top priority. As the posts slowly rot and melt into the floor the house settles accordingly bottom to top.

Lay a long level downhill on the floor with one end of the level on the level part of the floor and the other end at the lowest point. Compound can correct sags and dips as deep as 1 1 2 inches. Raise the lower end of the level until the bubble is centered then measure the distance from the bottom of the level to the floor to find the depth of the dip. If the uneven floor is due to floor joists that have warped or twisted over time or were incorrectly installed the only way to level the floor is to remove the subflooring and shim the joists.

Fixing a floor that sags and dips pour self leveling underlayment in the problem area. You can strengthen or repair existing framing members by adding reinforcing material. You can try reinforcing metal but this depends on the conditions you re encountering. You can sandwich the framing on either side with plywood.

Since masonry is more likely to break than bend concrete floors that are uneven are generally cracked or broken as well. If you need to fix sagging floors there are a variety of things you can do.