Banham Group ( formerly known as Banham Patent Locks ) is a family owned company in the security industry established in 1926 , and now the largest supplier of burglary and fire prevention systems in London .
Banham Group ( formerly known as Banham Patent Locks ) is a family owned security company . 
 Established in 1926 , Banham Group are now the largest supplier of burglary and fire prevention systems in London .