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Concrete wall and slab cutting

Cut and remove section beneath existing window penetration in concrete basement wall to form doorway, concrete is in situ poured approx 200m thick, section to be rmeoved is approx 1200mm high x 1000mm wide. Cut 2x drainage trenches into existing concrete floor slab approx 100 mm thick, 1 trench approx 2700mm long, the other approximate 1000mm long. Rubble can stay on site.