BELOW THE WATERLINE. UNDER CONTROL.
Concrete doesn't care that it's underwater — but almost every cutting method does. Excavators can't reach it, saw blades have a depth limit, and blasting brings shock loading, approvals and marine-fauna constraints that can stall a port project for months. Diamond wire is the method that works below the waterline — and it's the core of what we do.
Our Hilti DSW 1510-CA diamond wire saw drives a continuous diamond-beaded loop that cuts mass-reinforced concrete, steel and stone to effectively unlimited depth, in any direction, fully submerged. Divers rig the wire and guide pulleys around the cut line; the cut itself is driven and monitored from the surface, with Cut Assist software holding wire speed and tension automatically. Water is the coolant — the method is at home in the marine environment.
Because the wire transmits no shock loading and minimal vibration, adjacent piles, quay walls and live berths stay untouched — the reason wire sawing has replaced blasting on most marine removal scopes. Sections are cut to the crane or barge's capacity and recovered clean, the same engineered-lift discipline behind our bridge & wharf demolition work.
Every subsea job runs on a surveyed cut plan, certified commercial diving coordination, full SWMS and lift plans agreed before the wire goes in. See what drives wire sawing costs, or send us the drawings and the tide window.