REMOVAL OF SEAGULL NESTS THROUGHOUT THE YEAR

I live in a small block of flats by the sea and the residents have sought the advice of a sea gull removing service who recommend the removal of these birds nests in every season. I am not happy with this, least because I am sure it is against the law but that it is not the right thing to do. Is there another way these birds can be less inclined to want to nest there than to remove their nests?