Thermal Imaging Leak Detection
Infrared cameras reveal temperature patterns on walls, floors and ceilings that can point to hidden moisture and hot-water leaks.
Leak Location Services · Alhambra, CA
Wall and Ceiling Leak Detection in Alhambra, CA
Water travels. It runs along pipes, joists and vapour barriers, so the stain on your ceiling may sit metres from the pipe that is leaking. Wall and ceiling leak detection combines moisture measurement, thermal imaging and plumbing knowledge to trace the moisture pattern back to its origin — and to separate plumbing leaks from rain intrusion, condensation and other causes.
Open 24 hours, 7 days a week · Serving Alhambra & the San Gabriel Valley
Signs you may need this service
- A growing stain on a ceiling or wall
- Bubbling, peeling or soft plaster and paint
- A musty smell in one wall or room
- Stains that change with rain, or with bathroom use
- Damp baseboards with no visible pipe nearby
Individual symptoms do not always prove a leak — they justify a proper investigation, which is what this service provides.
What this service investigates
Supply and drain lines inside walls and ceiling voids, bathroom and laundry plumbing above ceilings, and the moisture pattern in the affected materials themselves.
Who it is for
- Homes with ceiling stains below bathrooms
- Walls with damp, bubbling paint or musty smells
- Anyone unsure whether a stain is plumbing, roof or condensation
How the process works
1
Map the visible damage and measure moisture levels across and beyond the stained area.
2
Use timing questions — does it grow after showers, rain, or neither? — to separate plumbing from roof and condensation causes.
3
Scan with thermal imaging and confirm suspect points with moisture readings.
4
Trace the pattern to the most likely source and explain any remaining uncertainty and the next confirming step.
Equipment & methods
Pin and pinless moisture meters, thermal imaging, targeted acoustic listening for pressurised lines, and fixture isolation tests.
What affects the diagnosis
Some sources can only be fully confirmed by a small inspection opening, which is only made with your agreement. Rain-related intrusion may need observation during or after rain. We distinguish a confirmed source from a most-likely source and never present a guess as a certainty.
What you receive
A moisture map of the affected area, the identified or most likely source, and recommended next steps for repair or further confirmation.
Read more: our guide related to wall and ceiling leak detection · All services · Service areas
Wall and Ceiling Leak Detection FAQs
The stain is on the ceiling — is the leak right above it?
Not necessarily. Water often travels along joists or pipes before dripping through. That is why the moisture pattern is mapped rather than assuming the stain marks the source.
Could it be the roof instead of plumbing?
Yes, and the investigation is designed to tell the difference — timing (rain vs water use), moisture pattern and location all provide evidence. If it is a roof issue, you will be told plainly.
Will walls need to be opened?
Usually the source can be identified or narrowed non-invasively. If a small inspection opening is the only way to confirm, it is discussed and agreed first — never done without your say.
What about mould?
Moisture mapping shows where materials are wet, which is what mould needs to grow. We do not offer mould testing unless separately verified — see Structural Moisture Mapping for documentation of the moisture itself.
Related services
Structural Moisture Mapping
Measuring and documenting exactly where building materials are wet, how wet they are, and how far the moisture has spread.
Acoustic Leak Detection
Electronic listening equipment picks up the sound of pressurised water escaping a pipe, so the leak can be pinpointed through floors and walls.
Think you have a hidden leak?
The sooner a leak is confirmed and located, the less water is wasted and the less damage spreads. Call now, or send a short request and describe what you are seeing.
Open 24 hours, 7 days a week · 1065 Westminster Ave, Alhambra, CA 91803