Excavate exterior walls by hand and install telescopic shoring to interior of joist work. Once structure is secured, excavate by hand to frost depth and remove existing foundation walls within repair area. Repair any damaged wooden joist work with fresh sistered timber and pour fresh concrete footing at frost depth to a dimension 20” x 8“ with rear. Once footing is cured, rebuild foundation walls with 10” block from base of footing to underside of existing joist work. Once complete, parge fresh foundation walls and let cure. Once cured, prime foundation wall and apply rubberized membrane waterproofing. Fasten drainage board from grade to footing. Backfill and power tamp soil within repair area and reinstall patio slabs.
Remove interior shoring and remove and dump all debris. All labour and materials included.