My front porch (brick) has sunk about 3 inches over the past 25 years.
I have had several quotes from companies that install piers (metal and concrete) but repairing this will be expensive. Any suggestions for raising this or would it be cheaper to tear down and rebuild. Has anyone ever used a pier installer and what was your experience?? GGoddard
a deck was built over the top, using the slab as the support. It the slab continues to settle (doubtful on a 50 year old house). it could easily be "adjusted" with blocking..
To "hide" the concrete below redwood lattice was installed around the front and sides
If its a brick and mortar porch. You need to take it down and rebuild.
Your best bet is to check out the contractors listed in this site. And follow their advice and ...»
You have a few options. One attempt to mud jack the patio up. This is a process where they drill holes in the patio area that has dropped the inject a slurry of mud and cement and through hydraulic action will lift the slab up to the original location. This may work, but they would have to do a look see if the current patio that the porch is set on will support this without cracking. ...»
The only other thing you can do is to remove the porch and cut through the patio and install new proper footings as it should have been done and then rebuild it as desired.
The porch should had never been installed on a patio without footings for the very reason your experiencing. Proper porch installs should include footings designed and sized to hold the weight of the porch construction.