The chance of the crack in your wall being caused by subsidence and requiring underpinning and/or rebuild is very slim.
Cracks in walls are the result of some kind of movement causes stress that the bricks cannot sustain. Movement can be caused by a variation in moisture, either in the wall itself or in the ground that supports it, temperature variations, chemical reactions or by replacing load bearing, wooden windows with non-load bearing UPVC windows. Some movement comes and goes with the seasons and other movement is permanent.
Newman’s are one of London’s leading Structural Repair companies and our services are being utilised across the city by many engineers and councils. We are a preferred contractor for Wandsworth Council and have been asked to carry out a structural assessment and report to Putney Bridge in South West London.