Sealants are used in construction to prevent fluids and other substances from passing through material surfaces, joints, or openings. We specialise in repairing missing, cracked or damaged mastic sealing in brickwork movement (expansion) joints around the window frames, glazing or glass-works.This kind of installation and repair is one of the main parts of our abseiling snagging services. Our qualified, experienced and highly trained team use the latest technology and equipment to deliver our commitment.