Walls & ceilings
The finish and condition help determine how to collect a useful sample.
- Drywall & sheetrock
- Ceiling tiles
- Basement walls
- Insulation materials
Surface mold testing
A mark on a wall. A change around a window. When a surface raises a question, targeted sampling and laboratory analysis can help us understand what is there—and explain what comes next.

Three ways to look closer
Each method collects something specific. Explore how we choose an approach that suits the surface and your concern.

A close look at the surface
An adhesive sampling medium collects material from a selected spot for microscopic examination. It can help distinguish fungal material from other surface deposits.
Testing starts with a purpose. When mold growth is already visible, a sample is often unnecessary.
When sampling helpsAround the property
We assess accessible areas within the agreed scope. The material, finish, and condition help determine what can be sampled.
The finish and condition help determine how to collect a useful sample.
Texture, coatings, and fragile materials deserve an individual approach.
Access and the question being investigated shape the sampling plan.
Recurring marks or dampness may call for a closer look at the moisture source.
Explore moisture detection
From the spot to the report
We review visible conditions, relevant moisture history, and your concerns. Together, we establish the sample locations, method, and scope before collection.
The appropriate sampling tools are prepared, and each sample is collected, protected, and linked to its location. Tell us about any recent cleaning or treatment.
Laboratory analysis is explained alongside the site observations. You receive documented findings, the limits of the sample, and guidance on the next steps.
A little more clarity
Understand what a sample can tell you before deciding on the next step.
Often, no. EPA guidance says sampling is usually unnecessary when visible mold growth is present. A sample should answer a specific question, such as examining uncertain surface material or supporting an agreed assessment after cleanup. We discuss whether testing will help before recommending it.
The surface, the material available, the laboratory analysis, and the question being investigated all matter. We select a suitable collection method and explain any access requirements or potential marks before proceeding.
No. It describes material collected from a particular surface or specimen. Air sampling addresses a different question. A surface result alone does not describe the entire property, conditions behind a wall, or an individual's exposure.
It depends on the method and finish. Adhesive can lift fragile coatings, while bulk sampling removes material. Let us know about delicate or valuable surfaces so the approach and any permission needed can be agreed in advance.
Describe the location, material, when you first noticed the concern, and any leaks, cleaning, painting, or repairs. Photos can help us discuss the scope. Ask for preparation guidance before changing the sample area; do not delay necessary water control or repairs for a sample.
Turnaround depends on the requested analysis and the laboratory's availability. We explain the expected timing, costs, and any expedited options before booking. The report connects the laboratory findings with the sample locations and inspection observations.
Here to help you understand
Tell us what you’ve noticed. We’ll help you decide whether surface sampling fits the question and explain the scope, cost, and timing before you book.