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What Should You Do if Your Water Main Leaks?

When a water main leaks, the damage can escalate quickly. Whether you're dealing with pooling water on your property or a sudden drop in water pressure, a leaking main is more than an inconvenience—it’s a serious issue that requires fast, informed action. If you're a homeowner in Riverside, MO, knowing how to respond can help minimize damage and get your household back to normal sooner.

This blog will walk you through the signs of a water main leak, what steps to take immediately, and how restoration professionals can help you recover quickly.


Spotting the Warning Signs of a Water Main Leak

Understanding the early signs of a leak can prevent small issues from turning into major disasters. Keep an eye out for:

  • Unexplained puddles or wet spots in your yard or near your home’s foundation
     
  • Sudden drops in water pressure or no water at all
     
  • Spike in your water bill with no change in usage
     
  • Muddy or discolored tap water
     
  • Cracks in the pavement or driveway near your property

In older neighborhoods of Riverside—like the historic areas near NW Vivion Road or homes near the Missouri River—aging infrastructure can make water main leaks more common. Always be alert if your property is located in an area with older plumbing systems.


Immediate Steps to Take After Discovering a Leak

If you suspect a leak, acting quickly can help you avoid extensive water damage. Here's what to do:

  • Shut off the water supply: Turn off the main water valve to stop the flow of water. If the leak is outside your home, call the utility company to handle it.
     
  • Avoid contact with floodwater: Water from a leaking main can be contaminated. Keep pets and children away.
     
  • Document the damage: Take pictures and videos of any visible water damage to aid insurance claims.
     
  • Call your utility provider: If the leak is on public property or near the meter, your water company needs to assess and repair it.
     
  • Contact a water damage restoration service: Prompt cleanup and drying services are crucial for preventing long-term issues like mold growth.

Understanding the Impact on Your Property

A water main leak may start underground, but the consequences can reach far beyond what’s visible on the surface. Over time—or even in just a few hours—a leaking main can lead to substantial structural and environmental damage that puts both your home and health at risk.

Foundation Shifts and Cracks

One of the most serious concerns is damage to your home's foundation. Water escaping from a pressurized main can saturate the soil beneath and around your house. In areas like Riverside where homes are often built on expansive clay soils, excess moisture can cause the soil to swell, heave, or shift—resulting in cracked foundations, uneven floors, and compromised structural integrity. If left untreated, this can reduce the value of your home and require major repairs.

Basement Flooding and Interior Damage

A leak near your home can also lead to water seeping into basements or crawlspaces. This moisture can damage everything from stored items to electrical systems and HVAC units. Over time, damp conditions create the perfect breeding ground for mold, mildew, and bacteria—posing serious health risks, especially for families with asthma or allergies.

Yard and Landscape Destruction

Outdoors, the effects may include eroded soil, uprooted landscaping, or even collapsed sidewalks and driveways. You might notice sinkholes forming or muddy, soggy areas that persist even during dry weather. These issues not only affect curb appeal but can become trip hazards or create drainage issues that lead to further water intrusion.

Plumbing System Strain

Internally, a drop in water pressure from a leak can put added stress on your home's plumbing system. Appliances like washing machines, water heaters, and dishwashers may not function properly, and fixtures can suffer from sediment buildup as discolored water makes its way into your pipes.

The longer a water main leak goes undetected or untreated, the more widespread and expensive the damage becomes. That’s why early detection, fast mitigation, and professional water damage restoration are crucial.


Who Is Responsible for the Leak?

Determining responsibility for a water main leak can be tricky, especially when the line runs beneath sidewalks, lawns, or right-of-ways. Knowing who’s responsible for the repair—and who pays for it—depends largely on where the leak occurs.

Utility Company vs. Homeowner Responsibilities

Generally, water utility companies are responsible for maintaining and repairing the public water lines that run beneath the street and up to your property’s water meter. If the leak is found on this portion of the line, it is typically the utility company’s responsibility to fix it at no cost to you.

However, the section of pipe that runs from the water meter into your home—called the “service line”—is almost always the homeowner’s responsibility. If the leak originates from this segment, the homeowner is on the hook for any necessary plumbing work, excavation, and restoration.

Understanding Local Codes and Guidelines in Riverside

In Riverside, MO, water service policies are managed locally, and the city provides guidance about what homeowners can expect when dealing with line repairs. In some cases, older homes built before modern plumbing codes may have outdated or deteriorating pipes (such as galvanized steel), which are more prone to leaks. If a professional inspection reveals an aging or failing line, upgrading the entire service line may be required—and that’s typically a homeowner expense.

Shared Responsibility in Special Cases

In some situations, such as shared water mains in multi-family buildings or HOAs, the responsibility might be split among homeowners or covered under collective insurance policies. For renters, the landlord typically bears the responsibility for fixing the leak and repairing any resulting property damage.

If you’re not sure whether the leak falls under your jurisdiction, it’s best to call your utility provider first. They can dispatch a technician to locate the issue and determine whether it’s on the public or private side of the line. From there, a licensed plumber or restoration expert—like ServiceMaster DSI—can help you take the next steps, whether that’s making a repair or restoring your property after water damage.

Why Knowing the Source Matters

Not only does identifying the source of the leak clarify who pays for repairs, but it also ensures that proper steps are taken to stop further damage. Acting quickly once you confirm the leak location can help you avoid more costly issues down the road and may help in filing an accurate, timely insurance claim.


Preventing Future Water Main Leaks

Preventive maintenance is the best way to protect your property and your wallet. Here are some steps to take:

  • Schedule annual plumbing inspections to identify vulnerabilities early
     
  • Monitor your water bill for unusual increases
     
  • Install a water pressure regulator to reduce strain on pipes
     
  • Insulate exposed pipes before winter to prevent freezing and cracking
     
  • Plant trees away from underground pipes to prevent root intrusion

Riverside residents can also take advantage of the city’s infrastructure planning resources or contact the utility department to learn about current upgrades or known problem zones.


How Professional Restoration Services Help

After a water main leak, it’s not just about stopping the flow—it’s about restoring your home safely and efficiently. Professional restoration teams provide:

  • Water extraction with industrial-grade pumps
     
  • Drying and dehumidification to prevent mold and structural damage
     
  • Damage assessment and moisture monitoring
     
  • Content cleaning and recovery for furniture, carpets, and personal belongings
     
  • Mold remediation, if needed

In Riverside, where seasonal humidity and summer storms can delay drying, a professional approach ensures nothing is left behind to cause long-term issues.


Help Is Close to Home with ServiceMaster DSI – Riverside

As part of the Riverside community, we understand the challenges local homeowners face when water main leaks disrupt daily life. Whether your home is near the riverfront or tucked in the hills near Argosy Parkway, our team knows the local infrastructure, common causes of water line failures, and how to respond fast.

At ServiceMaster DSI – Riverside, we offer:

  • 24/7 emergency response for sudden leaks and floods
     
  • Rapid on-site assessment to determine the source of the leak
     
  • Advanced drying equipment designed for Missouri’s humid conditions
     
  • Licensed technicians experienced in working with insurance companies

We know how stressful it is to experience unexpected water damage. That’s why our goal is to make the process as smooth and reassuring as possible—from the moment you call until your home is fully restored.


Stay Dry, Stay Ready with ServiceMaster DSI

A water main leak can be a homeowner’s worst nightmare—but it doesn’t have to spell disaster. By acting quickly, staying informed, and trusting professionals when it counts, you can protect your property and your peace of mind.

If you suspect water main leaks or are dealing with water damage in your Riverside home, don’t wait. Let ServiceMaster DSI – Riverside help restore your space and safeguard your future.

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