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The West Coast BuildersRestoration in Los Angeles, CA24/7 line(323) 709-0141

Know what is wet before anything is opened

Water damage inspection and moisture testing in Los Angeles

An inspection answers one question: is anything still wet, and where. Everything else, from a claim to a repair quote, depends on that answer.

  • Answered 24/7
  • Thermal imaging
  • Written moisture map

Updated September 2026

24/7 emergency line

(323) 709-0141
  1. 1
    Tell us the historyLeaks, stains, dates.
  2. 2
    We read and scanMeters and thermal camera.
  3. 3
    You get the mapWhat is wet, and what is not.

Quick answer

A water damage inspection in Los Angeles maps where moisture is inside walls, floors and ceilings without opening them. We use pin and pinless moisture meters and a thermal camera, compared against dry areas of the same house. You get a marked floor plan with readings, which shows whether a past leak dried or is still spreading.

The job

When an inspection is worth it

After a leak that was never professionally dried, before closing on an older house, when a stain keeps growing, or when an insurer or landlord needs documentation.

Most of the time the answer is reassuring. When it is not, you find out before the damage grows.

Pin moisture meter probes pressed into a baseboard

Variations of this job

Thermal imaging

Thermal imaging shows temperature differences across a surface, and wet materials read cooler because water evaporating pulls heat. It lets us scan whole walls and ceilings in minutes and spot patterns: a line under a window, a patch above a shower, a trail across a ceiling. A thermal image is a lead, not proof, because cold air leaks and missing insulation look similar. Every suspect area is confirmed with a moisture meter before it goes into the report. Photos of each thermal image are included.

Printed moisture inspection report with a floor plan

Moisture meter survey

A moisture meter survey measures actual moisture in drywall, wood and concrete. Pinless meters sweep surfaces without marking them; pin meters take a precise reading inside a material and are used where it matters. We take readings on dry reference areas of the same material first, then compare, because a number only means something next to its own baseline. The readings go onto a floor plan so anyone can see where the wet area starts and stops, including an adjuster or contractor.

Pre-purchase inspection

A pre-purchase inspection is a focused moisture check on a home you are about to buy, usually after a general home inspector flagged a stain or a musty smell. We check the bathrooms, kitchen, water heater area, under-sink cabinets, ceilings below upstairs plumbing and, where there is one, the crawl space. It tells you whether past leaks are dry, which helps you negotiate or ask the seller for repairs before you own the problem. We can usually work within a normal inspection contingency period.

How the job runs

How the inspection runs

WetDry and signed off

  1. 1

    History first

    What leaked, when, and what was done.

  2. 2

    Dry references

    Baseline readings on the same materials.

  3. 3

    Thermal scan

    Walls, ceilings and floors room by room.

  4. 4

    Confirm with meters

    Every thermal lead checked.

  5. 5

    Hidden spots

    Under sinks, around tubs and heaters.

  6. 6

    Mark the floor plan

    Readings and wet edges drawn.

  7. 7

    Walk you through it

    What is wet and what to do next.

Los Angeles conditions

Older housing, older leaks

More than half the homes in Los Angeles County were built before 1970, so most houses changing hands here have decades of plumbing history, not all of it documented. Old repairs often hide under fresh paint. Wet material can start growing mold within 24 to 48 hours, so an inspection that finds moisture early saves far more than it costs.

Your options

Which inspection fits your situation?

Scope the visit to the question you need answered.

Inspection types
SituationBest fitWhat you get
One stain or smellTargeted inspectionReadings and cause for that area
Old leak never driedFull moisture mapExtent of wet material
Buying a homePre-purchase inspectionPlumbing areas and crawl space
After our drying jobClearance readingsConfirmation materials are dry

Cost factors

What a moisture inspection costs

2026 guides put a water damage inspection with documentation at $200 to $500, and a mold inspection at $300 to $650. A larger home or crawl space access adds time.

Home size

Rooms and floors to scan.

Scope

One area versus the whole house.

Crawl space or attic

Access adds time.

Report detail

Summary versus full floor plan.

Timing

Before a closing deadline.

Sampling

Mold samples only if needed.

Do it yourself or call

What you can check yourself first

A few checks cost nothing. Inside the walls is where you need instruments.

Where the line sits
What you can doWhat we handle
Water meter testTurn off all water, watch the meterTrace where the water goes
StainsPhotograph and date themRead whether they are still wet
Musty smellNote where it is strongestScan and read that area
Under sinksLook for swelling or dripsRead the cabinet base and wall

FAQ

Inspection questions

Related work

Where this job usually goes next

Not sure if that old leak dried?

Call and we will map it, so you know before anything gets opened.

24/7 emergency line

(323) 709-0141

The West Coast Builders
153 Japanese Village Plaza Mall, Los Angeles, CA 90012

Call the 24/7 line: (323) 709-0141