Anything involving 20 ton house jacks will take time.
Jacking up a floor sagging.
If you have a sagging floor you may need to use floor jacks in order to restore any low points and re level the floor using floor jacks to level a sagging floor should be viewed as a temporary solution to your problem.
Causes of a sagging floors figure 1.
The solution to sagging floors or the damaged sills and joist ends that contribute to them often involves jacking.
It is definitely a project where you may want to consider hiring a professional.
A taut string stretched across the floor will show the amount of deflection and improvement.
It has to be jacked up slowly over days or even weeks to avoid cracking drywall plaster windows and even structural elements.
Jack up that portion of the house and place new footers.
A common scenario is to install temporary jack posts and support beams then permanent posts and beams over new footings.
However if you have a strong back and the knowledge it will save you substantially if you undertake the project yourself.
You cannot jack up a house in one day.
The long term solution for your sagging floor is to remove the flooring replace or fix the problems with the foundation that may contribute to the sag and replace the flooring.
Jacking up a floor and leveling it is easy with these simple instructions.
Make repairs to settling piers and weak joists to fix swagging floors and roof lines.
The only tools required is a bottle jack string straight claw hammer circular saw and a light source.