How can I tell whether the growth is mold or just a stain?
A stain is usually a mark left by water, while mold is a growth that can be fuzzy, powdery or colored, and it often has a musty smell. Only a technician with the right tools can confirm what a surface is and how far it reaches, so do not treat a suspicious patch as harmless.
Water marks tend to have a clear edge and a tidy outline, and they can often be wiped without leaving a film. Growth can look more irregular, and it can return after it is wiped. A patch that changes in color or spreads over time is worth a call.
The technician checks the patch with a moisture reading and a close look. Where the surface cannot be confirmed by eye, the crew can take a sample for a lab test, and it explains the result when it is back.
What moves the price of a mold job?
A mold job is priced by how much material is affected, whether growth is on the surface or inside the building, and how much containment is needed. The price is explained and approved before work starts, and this page gives no figure.
Surface growth on a few square feet is a smaller job than growth inside a wall or across a whole floor. The number of rooms affected, and whether the work has to be done in a room that is still in use, also change the scope.
Drying and the repair of the source are part of the plan. The technician separates the parts of the job so you can see what is needed to stop the growth and what is needed to rebuild the affected area, and each part is priced separately on site.
Can I clean mold off the walls myself?
You can clean a small surface patch with a damp cloth and a cleaner made for the surface, if the source is dry and the patch is small. Do not clean a large area, do not use bleach on porous materials, and do not run a fan that blows the spores into other rooms.
Wear gloves and a mask that fits well, and keep the room closed off while you work. Wipe the surface gently rather than scrubbing hard, because scrubbing can push spores into the air and spread the growth.
If the growth is larger than a small patch, or if it has come back after cleaning, stop and call a crew. A growth that returns is a sign that moisture is still reaching the material.
Why does mold come back after it has been cleaned?
Mold returns when the moisture that fed it is still present. Cleaning removes the growth but does not dry the material underneath, so the spores can regrow in the same place. The source has to be stopped and the material dried before the cleaning is finished.
A wall that was cleaned but never opened can still hold water in the cavity. The mold grows again from that water, and it can show up behind paint that looked clean. The technician checks the cavity before the job is closed.
A written record of readings and the source that was stopped gives you a way to track the room over the following weeks. If growth reappears, call again and describe where it is.
What does a mold assessment include?
A mold assessment includes moisture readings, a visual check of the affected materials, the source of the water and a note of the growth found. It does not include a diagnosis of anyone's health, and the crew does not make health claims about the air in the home.
The assessment records where the growth was seen, which materials were tested and what the readings showed. It is written down so the owner and any later contractor can see what the room looked like at the time.
If you have a health concern, speak to a doctor. The crew can explain what was found in the building, but it does not decide whether anyone should be treated or tested.