Software as a service (SAAS) services featuring software for monitoring commercial and residential buildings for gas and water leaks, environmental malfunctions involving mold, bacteria, air quality, and water quality, and mechanical malfunctions in HVAC and building equipment, all monitored via data transmitted from wireless smart sensors installed at gas appliances, plumbing fixtures, sinks, toilets, dishwashers, HVAC systems, and boilers, instruments for measuring humidity, mold, bacteria, air quality and water quality, and sending real-time alerts notifying users of said leaks and malfunctions.