Graffiti can be anything from a nuisance to humiliatingly embarrassing, but however it is regarded there is an answer - it can be removed. Some companies use abrasive blasting to remove graffiti. This is far too aggressive for brickwork, scarring it and causing it to age considerably as it wears away the surface. It is far kinder to use pressure jetting in conjunction with a graffiti remover. You get the results without the damage.