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.
How to fix uneven basement floor.
Filling in gaps cracks and crevices as well as leveling uneven concrete will bring up the aesthetic and shore up the structure of the flooring.
Replace your old uneven floor cheap and easy.
This compound can potentially be utilized on a concrete slab or a wood subfloor and it works well when you are dealing with dips in the floor.
The main problem with a basement floor being uneven is that it s generally made from concrete which is a hard unyielding material.
One thing that you want to consider before doing any basement project is moisture.
Remove the old.
A plywood subfloor will bridge any minor waves in the existing floor and leveling compound would help too.
You will have to make sure your joists can handle the addition of considerably more weight from the plywood subfloor and any floor coverings.
There are many reasons that a floor surface or subflooring can be uneven.
If you are up against the uneven concrete floor and thinking how to fix uneven floors in an old house then this is for you.
An uneven concrete floor can be unsightly as well as unsafe.
The most common reasons are either a basement or other concrete based surfaces or a remodel that has various levels of subflooring.
When you are dealing with uneven floors one option that you have is to use self leveling compound.
Leveling the floor can fix the problem removing the uneven area and leaving you with a smooth level surface that s suitable for any floor covering material you may desire to install.
Installing flooring on an uneven concrete can cause buckling and loose boards after the installation.
On the top side of the floor another fix it idea to lay down new hardwood over the existing floor.
Uneven floors make it difficult to lay carpet tile or other floor covering and they also affect the aesthetics of a finished basement.
It s actually a very simple process.
The easiest way is to use a self leveling compound also called liquid floor underlayment or floor resurfacer within sections of level cut rails.
Happily enough leveling uneven concrete slabs has an easy fix that won t sacrifice your headroom.