Using a combination of treatments, including HBG and Permbloc, the Tooley Street archways were restored to their former glory.

HBG helps to create a dust-free environment in the enclosed space by forming a protective barrier. This helps with binding the surface together, reducing the amount of particles of mortar dropping due to vibrations of trains overhead.

Using wet conditions to deliver dry ones, our Permbloc treatment eradicated water ingress problems found in the railway arch brickwork. This unique water-based crystallising moisture blocker has been specifically formulated to permanently dry concrete and masonry affected by water ingress.

Permbloc is effective even under high hydrostatic pressures, it is non-toxic and solvent-free meaning it is the ideal solution for enclosed spaces such as railway arches. A key advantage of this innovative product is the fact it eliminates the requirement of heaters and dehumidifiers, cutting out unnecessary and expensive delays in the drying process.