Leak Detection

Hidden leaks can waste water and cause damage long before they're visible. Leak detection is the process of finding where water is escaping so the right repair can be made. This page explains typical signs and how to request a leak assessment.

Request this service
Water meter and main shutoff valve in a San Diego utility closet with surrounding pipes

When it's needed

Common reasons you may need leak detection

  • An unexplained increase in water usage or bill
  • A damp or warm spot on the floor with no obvious source
  • Mold or musty odors in a wall, cabinet, or room
  • Sounds of running water when nothing is in use
  • Cracking or lifting tile that may hide a slab leak

What's involved

Typical service tasks & considerations

  • Reviewing water meter behavior and usage history
  • Inspecting visible plumbing and fixture connections
  • Narrowing down the likely area of the leak
  • Recommending the appropriate repair scope
  • Coordinating any follow-up repair work

Possible causes

Related plumbing problems & causes

Pinhole corrosion in copper supply lines

Slab leaks under a concrete foundation

Failed joints or fittings inside walls

Slow fixture or appliance leaks

Stay safe

Safety & prevention

General precautions to keep in mind. These don't replace professional assessment.

  • !Don't ignore a warm floor or a rising water bill — both can indicate a hidden leak.
  • !If mold is present, keep the area dry and ventilated until it can be assessed.

Leak Detection FAQs

Questions about this service

What are common signs of a hidden leak?
Common signs include an unexplained rise in your water bill, the sound of running water when nothing is in use, damp or warm spots on the floor, musty odors, and cracking or lifting tile. Any of these can point to a leak that needs assessment.
Why might the source of a leak need professional assessment?
Water can travel along pipes and inside wall cavities, so the visible dampness is often far from the actual leak. A professional assessment helps pinpoint the source so the repair targets the right spot.

Need leak detection?

Describe the issue and submit a service request. Availability is confirmed with the business — no response time is promised here.