For common inquiries, HDB's most important hotline is 1800-225-5432, but it operates only throughout weekdays from eight:00 AM to five:00 PM. For soon after-hrs emergencies that need immediate awareness, for instance fallen windows, wall collapse, or lift breakdowns, people need to Make contact with the 24-hour Important Routine maintenance Assistance Unit (EMSU) hotline specific for their Town Council. For instance, some City Councils make use of the EM Solutions EMSU hotline at 1800-275-5555, while some make use of the ESMACO EMSU hotline at 1800-354-3333. It's important to notice that there is no one HDB 24-hour hotline for all difficulties. For other vital services, different 24-hour hotlines exist, including SP PowerGrid for electricity source interruptions at 1800-778-8888, PUB for drinking water source troubles at 1800-225-5782, and City Fuel for gas emergencies read more at 1800-752-1800. These quantities are vital for residents to handle urgent problems beyond normal Business hrs.