Emergency Plumber in University City, MO

Sudden whole-house pressure drops narrow to a few specific causes: your pressure reducing valve (PRV) has failed or its setting has slipped (common in homes over 10 years old), your municipal supply pressure dropped (confirm with your neighbor), your main shutoff valve is partially closed or its internal components have deteriorated, or a supply line somewhere in the home has a significant leak pulling volume out of the system. In older homes with galvanized pipes, internal corrosion can narrow the pipe bore enough to restrict flow - but this usually happens gradually, not suddenly. A sudden change almost always points to the PRV or a valve issue.

Stop the water immediately. Your main water shutoff valve is the single most important thing to know in your home. It's typically located near the water meter (outside in warm climates, inside near the front wall or in a utility closet in cold climates). Turn it clockwise until fully closed. Once the water supply is cut, the flooding stops. Then call us - 877-365-2933, answered live 24/7. While you wait, move valuables off wet floors and avoid running electrical devices in wet areas. We'll guide you through next steps on the phone before we even arrive.

Sewer gas entering your home without a visible overflow typically comes from one of three sources: a dry P-trap in a rarely used drain (the water seal evaporates and lets gas through - fix by running the faucet for 30 seconds), a cracked or improperly sealed wax ring at a toilet base, or a venting problem in the drain system causing negative pressure. In older homes, cracked sewer line joints can also let gas escape underground before the pipe fully fails. The smell is not just unpleasant - hydrogen sulfide is harmful at elevated concentrations. We can identify the source quickly and give you a clear answer before it becomes a health or structural issue.

A slab leak is a leak in a supply or drain pipe that runs beneath your concrete foundation. Because the pipe is under the slab, water from the leak doesn't surface immediately - it migrates through the concrete and soil, often showing up first as warm spots on the floor, unexplained water bill increases, or the sound of water running when everything in the house is off. Left unaddressed, slab leaks cause significant structural damage: the water erodes the soil under the slab, which can lead to foundation settling, concrete cracking, and mold growth in the subfloor. Detection is done non-invasively using acoustic listening equipment and thermal imaging cameras. Once pinpointed, the repair is typically done through a targeted access cut rather than breaking up large sections of floor.