A cracked or uneven patio is an eyesore and a trip hazard.
Fixing Cracked Concrete
Use concrete crack filler for hairline cracks. For wider cracks use concrete repair mortar — chisel clean edges, dampen, fill, and smooth flush.
Fixing Sunken Paving Slabs
Lever up the slab with a bolster chisel. Add sharp sand beneath to correct the level. Replace the slab and check with a spirit level.
Fixing Loose Block Paving
Lift individual blocks. Add sand beneath. Replace and brush kiln-dried sand into all joints to lock in place.
Sealing the Patio
Apply patio sealant to protect against future water ingress, moss growth, and staining. Reapply every two to three years.