There are a number of recommended methods and cleaning agents which can be used to remove adhesive products from surfaces, without any residue or scratching. The cheapest method is using tea tree or eucalyptus oil, which gently rubs off any remaining adhesive product, without tarnishing the surface. Many supermarkets and DIY stores also sell products specifically for removing sticky, adhesive product. NB: prior to using, test remover on an obscure ‘out of site’ spot on the furniture to confirm there will be no damage.
To remove the taped pressure mounted gates – mounting cups put a tiny drop of Eucalyptus or Tea Tree oil or adhesive solvent to soak into the tape. After a number of minutes allowing it to sink in, try gently pulling the mounting cup only a little distance from the wall, more oil may be required. Then gently twist as you pull it the rest of the way. It will depend on what surface the cups have been attached to, but generally little or no damage should be seen on the finish.