How to fix a sloping floor.

When deciding how to fix a sloping floor one must know a few things. First; is the slope occurring in a slab or a raised foundation? Second, different methods are used depending on how far out of level the floor slopes. It is highly advised to find a contractor who is suited to answer floor sloping questions. This isn't a project one should try to repair on one's own. Expertise in this area is vitally important.
In a slab, if the floor isn't greatly out of level, the problem can be rectified with a self leveling concrete. This substance is poured into the given area. This method alone will level the floor. No additional work is required. Consider yourself fortunate if your problem is rectified by this procedure. Other procedures can be a lot more costly and difficult.
If a slab floor is greatly out of level, due to a possible unstable earth, the best way for leveling is quite expensive but works well; it is a concrete injection leveling system called Hydraulic Mud Jacking. You take the low areas of the floor, drill holes in the slab, pump concrete into the holes, which pushes the slab up to the proper level. This procedure is done by an authorized company specializing in raising floor slabs who also own the proper leveling instruments. This unfortunately is not a method one can do on one's own. There are other methods used, such as the screw jack, but the two mentioned above are the most popular.
If you are fortunate enough to have a raised foundation you will find raising the floor to level is a lot cheaper than raising a slab, not easier just less expensive. Because a raised foundation has crawl space underneath bottle jacks can be used to raise the house. Depending on the size of the house, single or double story, bottle jacks of different weights are used. They come in varying weights from a few tons to sixty tons.
After raising the house, objects such as shims are used under the structure where the floor needs raising to offer height. After removing the jacks the structure can then lowered onto the added supports. Depending on how much the house needs to be raised will determine how many shims are used.
Whether your home has a slab or a raised foundation, there is a solution for a sloping floor. Some solutions are easier, some are less expensive, but with the help of your local contractor you can come up with the right solution for your situation.