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Top signs of a water leak - how to find hidden damage
Expert Water Leak Detection & Repair Services – Stop Hidden Leaks Before They Cause Major Damage
Is your water bill higher than usual? Do you hear water running even when no faucets are on? These may be signs of a hidden leak inside your home. Left unaddressed, water leaks can lead to costly structural damage, dangerous mold growth, and inflated utility bills.
At Repipe Champions Plumbing and Rooter, we specialize in advanced water leak detection services that pinpoint the problem fast—before it turns into a disaster. Below are the most common signs of a hidden water leak and how to protect your property.
📞 Call +1(408) 295-4309 for Expert Leak Detection in Santa Clara & San Mateo Counties
1. Unexplained Spike in Your Water Bill
A sudden increase in your water bill—with no change in usage—is one of the most obvious signs of a leak.
How to Check:
• Turn off all water-using appliances and fixtures. If your water meter is still moving, you likely have a hidden leak.
• Compare your current bill with previous months. A consistent rise could mean water is escaping somewhere behind the scenes.
What to Do: Don’t wait—leaks only get worse over time. Contact our leak detection specialists for a professional assessment.
2. Water Stains on Walls, Ceilings, or Floors
Discoloration, bubbling paint, or warped baseboards often point to moisture behind walls or beneath flooring.
Common Causes:
• Hidden pipe leaks
• Roof or fixture leaks
• Faulty appliance connections
Warning: If water stains are expanding, you’re dealing with an active leak that needs immediate attention.
3. Mold, Mildew, or Musty Odors
Smelling mold or seeing mildew in normally dry areas—like inside cabinets or behind toilets—may indicate a persistent leak feeding unwanted moisture.
Where to Check:
• Under sinks and dishwashers
• Around water heaters
• Behind walls or in crawlspaces
Health Note: Mold can trigger allergies and respiratory issues—don’t delay inspection.
4. Hearing Water When Nothing’s Running
If you hear dripping, hissing, or flowing water when all taps are off, that’s a strong sign of a hidden leak in your system.
To Confirm:
• Listen near walls, floors, or near appliances.
• Check your water meter—movement means water is flowing somewhere.
Tip: Call Repipe Champions for professional leak detection using advanced tools.
5. Wet Spots, Yard Sinking, or Foundation Cracks
Some leaks occur underground or beneath your home’s slab foundation. These are harder to detect but can be extremely damaging over time.
Look for Signs Like:
• Hot spots on flooring (from hot water line leaks)
• Sunken or soggy patches in the yard
• Water pooling without recent rain
• Cracks in flooring or foundation
Act Fast: Slab leaks can compromise your foundation and lead to major repair costs.
How to Prevent Water Leaks
• Inspect pipes and fixtures regularly
• Monitor your monthly water usage
• Know where your main shut-off valve is located
• Consider installing a smart leak detection system
Get Peace of Mind Today
Hidden leaks don’t fix themselves. Call Repipe Champions Plumbing and Rooter at +1(408) 295-4309 to schedule expert leak detection and protect your home from costly damage.

Cities We Serve for Expert Water Leak Detection
Campbell
Cupertino
Gilroy
Los Altos
Los Altos Hills
Los Gatos
Menlo Park
Milpitas
Monte Sereno
Morgan Hill
Mountain View
Palo Alto
Portola Valley
san Jose
Santa Clara
Saratoga
Sunnyvale
Woodside
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