How to Spot a Hidden Water Leak Before It Becomes a Major Problem
Water leaks can be a nightmare for homeowners—especially when they go undetected. While some leaks are obvious, like a dripping faucet or a burst pipe, others hide behind walls, under floors, or in your yard. If left unchecked, these hidden leaks can lead to costly water damage, mold growth, and skyrocketing utility bills.
If you live in San Gabriel Valley, CA or the surrounding areas, it’s important to stay ahead of plumbing problems. Here’s how to spot a hidden water leak before it turns into a major issue.
1. Unexplained Increase in Water Bills
One of the first signs of a hidden leak is an unexpected spike in your water bill. If your usage hasn’t changed but your bill keeps climbing, it’s time to investigate. A small, continuous leak can waste hundreds of gallons of water a month.
2. Mold or Mildew Smell
Hidden leaks behind walls or under floors often create the perfect environment for mold and mildew. If you notice a persistent musty smell in your bathroom, kitchen, or other areas of your home, it could be a sign that water is leaking where you can’t see it.
3. Stained or Warped Walls and Ceilings
Watch for water stains, bubbling paint, or warped drywall. These visual signs typically indicate water is seeping behind your walls or ceiling. Even minor discoloration can be a red flag for a bigger problem brewing.
4. Damp or Spongy Floors
If your flooring feels unusually damp or soft underfoot, there could be a leak underneath. In homes with hardwood or laminate floors, leaks can cause warping, cupping, or buckling over time.
5. Reduced Water Pressure
A sudden drop in water pressure could signal a hidden leak in your pipes. While it could also point to sediment buildup, if you notice this change along with other symptoms, don’t ignore it.
6. Sounds of Running Water
Hearing water running when no taps are open or toilets are flushing? That’s often a telltale sign of a hidden leak. Listen closely near walls, floors, and appliances like your water heater or washing machine.
7. Puddles in the Yard or Foundation Issues
Outdoor leaks, especially in the main water line, can cause soggy patches in your yard or even cracks in your foundation. If you notice wet areas that never seem to dry—especially during dry weather—it’s worth checking out.
Why Prompt Leak Detection Matters in San Gabriel Valley Homes
The San Gabriel Valley area includes many older homes with aging plumbing systems. Older pipes are more prone to corrosion and cracks, increasing the risk of hidden leaks. What might start as a minor issue can quickly escalate into water damage, structural problems, and mold infestations.
At Good News Plumbers, we specialize in leak detection and repair in San Gabriel Valley and surrounding areas, including Glendora, Covina, Pasadena, Azusa, and more. Our experienced technicians use advanced tools like electronic leak detectors and thermal imaging to find and fix leaks fast—without tearing up your home.
What to Do If You Suspect a Leak
If you think you might have a hidden leak, don’t wait. Here’s what to do:
- Turn off your water at the main shutoff valve.
- Check your water meter and record the reading. Wait two hours (with all water off) and check again. If the reading changes, you likely have a leak.
- Call a professional plumber to locate and repair the leak.
Trust Good News Plumbers for Leak Detection in San Gabriel Valley
Protect your home from hidden water damage by staying alert to the signs of leaks. If you’re unsure or want peace of mind, schedule an inspection with Good News Plumbers. We’re proud to serve San Gabriel Valley, CA and surrounding communities with honest service, expert workmanship, and fast response times.
📞 Call us today or request service online to catch leaks early and protect your home!