Wanstead High School undertook a landscaping project for their playground during the summer break, necessitating the timely completion of our work. We were commissioned to construct a 4m x 45m retaining wall. Given the substantial amount of soil on the rear side of the wall, it was imperative to ensure its strength to withstand the constant pressure. Additionally, we were responsible for underpinning the gymnasium, as the area around its foundation had been excavated.