The specialized cement slurry used in mudjacking is strong enough to keep the slab in place for several years. In fact, most homeowners report that their repairs last about 8 to 10 years.
How long does concrete lifting foam last?
While mudjacking usually lasts 2-5 years, polyurethane can last much longer if properly maintained. Check here for more information on polyurethane vs.
Is Mudjacking a permanent fix?
Mudjacking can last for long periods, but it is inherently less reliable and usually does need to be replaced. The injected materials are extremely heavy (30-50 times heavier than their polyurethane equivalent) and can cause a new round of soil compression (and foundation sinking) beneath the slab.