Most plumbing emergencies in Shreveport-Bossier City give you a warning before they become disasters — if you know what to look for. A slow drip becomes a burst pipe. A sluggish drain becomes a sewage backup. A water heater making strange noises becomes a flooded utility room. Knowing the five most reliable warning signs means you can call an emergency plumber before you’re dealing with the aftermath instead of the cause.
Mark Johnson & Sons Plumbing serves both Shreveport and Bossier City with 24/7 emergency plumbing response. Here’s what our technicians see most often — and what tells them a situation has crossed from “schedule it” to “call right now.”
Sign #1: Water That Won’t Stop — and No Shut-Off Is Accessible
If water is actively running somewhere it shouldn’t be and you can’t stop it at a shut-off valve, you have a plumbing emergency. No exceptions.
Every toilet, sink, and appliance in your home should have a dedicated supply shut-off valve beneath or behind it. Your water heater has one on the cold inlet line. Your main house shut-off is typically near the water meter or at the point where the main supply line enters your home. If you know where these are, a burst fitting or a failed supply line becomes a manageable problem: shut off the nearest valve, then call us.
The problem is that many Shreveport-Bossier homeowners — especially in older homes — have never located their shut-offs, or the shut-offs are so corroded they won’t turn. In that case, water keeps running and damage accumulates by the minute. Call immediately, and try to identify what’s feeding the leak while you wait.
Mark Johnson & Sons responds to emergency calls across Shreveport from our local office at (318) 545-7004 and serves Bossier City at (318) 228-1003. Give us your address and a quick description of what’s happening — we’ll tell you exactly what to do while we’re on the way.
Sign #2: Sewage Backup Reaching Living Areas
A slow-draining sink is a plumbing nuisance. Sewage backing up into a tub, shower, or floor drain — especially in multiple fixtures at once — is a plumbing emergency.
When a single fixture drains slowly, the clog is usually localized in that fixture’s branch line. When multiple fixtures back up simultaneously, the blockage is typically in the main drain stack or the sewer lateral that runs from your home to the city’s sewer system. In Shreveport-Bossier City, tree root intrusion into older clay or cast iron sewer laterals is one of the most common causes of whole-house sewage backup — the Red River basin’s soil conditions and the area’s mature tree canopy make this a persistent regional problem.
A sewage backup that reaches your living areas is a health concern, not just a plumbing one. Raw sewage contains bacteria and pathogens that require proper cleanup — mopping it up yourself without appropriate precautions isn’t the right move. Call an emergency plumber, contain the affected area, and avoid contact with the backed-up material until the line is cleared and the area is properly sanitized.
Sign #3: No Hot Water Combined with an Unusual Smell or Hissing Sound
Running out of hot water is inconvenient. Running out of hot water along with a sulfur smell (like rotten eggs), a hissing sound from your water heater, or visible water around the unit is a different situation entirely.
The rotten egg smell near a water heater indicates hydrogen sulfide gas — typically from sulfur bacteria reacting with the magnesium anode rod inside the tank. This is more common in areas with high sulfur content in the water supply, which can occur with certain well water sources in the Shreveport-Bossier area. While not immediately dangerous at typical concentrations, it does indicate a water quality problem that needs addressing and, in some configurations, can indicate issues with the heater’s temperature settings.
A hissing or popping sound from the water heater combined with no hot water production points to heating element failure or severe sediment buildup — or, if the hissing is accompanied by steam or a burning smell, a pressure issue. The temperature and pressure relief valve (T&P valve) on your water heater is a critical safety device. If it’s actively discharging water or steam, that’s a sign the tank is over-pressurized. Do not attempt to manually reset or cap the T&P valve — that valve exists specifically to prevent an unsafe pressure buildup. Call a licensed plumber immediately.
Sign #4: Visible Water Damage Spreading Through Ceilings or Walls
A water stain on your ceiling that appeared overnight and is actively growing — or bubbling paint, sagging drywall, or water actively dripping from a ceiling fixture — means a pipe or fitting above that surface has failed and water has been running for some time.
In two-story homes common in Shreveport’s residential neighborhoods, a supply line leak on the upper floor can saturate the subfloor, drip through insulation, and start showing ceiling damage on the floor below before the source is obvious. By the time you see the stain, the water has typically already traveled a significant distance from the actual failure point.
Turn off the water supply to that section of your home if you can identify the source, or shut off the main. Protect electronics and valuables below the stain. Then call for emergency service — finding and stopping a hidden leak in a wall or ceiling requires access equipment and thermal imaging in some cases, neither of which should be improvised.
Sign #5: Sudden Loss of Water Pressure Across the Whole House
If water pressure drops noticeably at every fixture in your home simultaneously — not just one faucet — something has changed upstream. The possibilities range from a city supply interruption (easily confirmed by calling your utility or checking a neighborhood service notification) to a main line break or a significant internal pipe failure.
For Shreveport homeowners, a sudden whole-house pressure drop combined with a wet spot appearing in the yard can indicate a main supply line break between the meter and the house — a pipe that’s typically the homeowner’s responsibility. For Bossier City properties, the same scenario applies, though the location of the supply line and meter can vary by neighborhood and lot configuration.
Don’t wait to see if pressure returns on its own. A main line leak running for hours before being addressed can undermine soil stability, damage landscaping, and in some cases affect the foundation footings of structures above it. Confirm it’s not a city-side issue first, then call an emergency plumber if the pressure doesn’t restore within 30 minutes.
What to Do While You Wait for an Emergency Plumber
Three things to do immediately when a plumbing emergency is developing:
- Shut off the water. Find the most accessible shut-off valve — fixture-level, zone-level, or main — and close it. Stopping the flow of water is always the right first move, even if you haven’t located the problem yet.
- Document the situation. Take a few photos or a short video of what you’re seeing — water location, visible damage, the affected fixture or pipe. This helps the technician arrive with the right parts and gives you documentation if an insurance claim becomes relevant.
- Clear the area. Move rugs, furniture, electronics, and valuables out of the affected zone. Water spreads quickly and damage to secondary items adds up fast.
Mark Johnson & Sons: Emergency Plumbing for Shreveport-Bossier City
Mark Johnson & Sons Plumbing has operated across Northwest Louisiana since 1997. As a veteran-owned company with five licensed technicians on staff, BBB A+ accreditation since 2012, and approximately 2,990 five-star Google reviews, we’ve built a reputation in Shreveport and Bossier City on the same thing that matters most when water is running somewhere it shouldn’t: showing up when you need us.
We offer true 24/7 emergency plumbing service — not an answering service, not a callback queue. Call our Shreveport office at (318) 545-7004 or our Bossier City office at (318) 228-1003 and a licensed technician will be dispatched to your address.
For water heater emergencies specifically, our team handles water heater repair and emergency replacement across both metros. And if you want to reduce the chances of an emergency in the first place, a whole-home plumbing inspection is worth scheduling before the next unexpected call. See our full range of plumbing services across Northern Louisiana.
— Charlie Gray, Master Plumber
Mark Johnson & Sons Plumbing | Est. 1997 | BBB A+ | Veteran-Owned
Serving Shreveport, Bossier City, Monroe, and Northern Louisiana
