Because laminate is typically thinner and less sturdy than real wood it is critical that you properly level the subfloor before you install laminate.
How to level floor for floating floor.
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.
Self leveling underlayment products can be used on concrete floors wood subfloors that are uneven but still in decent shape and even over ceramic tile floors eliminating the task of tearing.
If you have very high or low spots foundation or structural problems or termite damage you may need professional help.
Use this guide from the home depot to learn about leveling floors.
Work your way outward from the interior of the room.
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.
For instance you may have a dining room floor that end to end is level but between those two points are various sags and dips.
To level a floor start by removing the existing flooring.
Laminate floors may be glued down or installed as floating systems which lock together using tongue and groove connectors.
When you re finished spread some concrete leveler primer over the floor and let it dry until it has a tacky.
Leveling floors can be a diy project or left to professionals.
Once the compound reaches a creamy consistency pour a thin layer into the sunken sections then smooth out inconsistencies with a hand trowel.
Floors that sag or dip.
To level concrete floors start by cleaning the floor and filling in any cracks or holes with concrete filler and sealer.
In many cases you can level a floor yourself.