Common fire alarm systems can replace costly waking watches. We explain the process, costs, and regulatory requirements.. Ending the Waking Watch Burden Waking watches cost residential leaseholders an average of £15,000 25,000 per month per building. The government's Waking Watch Replacement Fund helps transition to common fire alarm systems. The Process 1. Fire risk assessment identifying waking watch requirement 2. Design of common fire alarm system (BS 5839 1 Category L1) 3. Building control approval 4. Installation by BAFE accredited contractor 5. Commissioning and handover 6. Waking watch stood down Cost Comparison Option Monthly Cost 12 Month Cost Waking Watch £15,000 25,000 £180,000 300,000 Common Alarm System £800 1,500 (maintenance) £40,000 80,000 (install + maintenance) For waking watch replacement guidance, contact us.