Are you considering buying a burglar alarm? Which? expert advice on what five things you should consider, including types of alarms and alarm features, plus tips from burglar alarm owners on what it's worth spending your money on.
We've asked more than 3,000 alarm owners to rate their alarm company. See ratings for big-name brands including ADT, Honeywell and Yale.
48% of Brits surveyed admitted to leaving valuables in view when out of the house, and 42% said they don't always set their burglar alarm.