Furnace Mold Removal

Potentially harmful effects could result from being exposed to mold. The spores that can come from mold can get into your lungs and result in respiratory problems, allergic reactions and other issues. Furnaces provide a sheltered, warm and moist area that is a perfect environment for mold to grow. Getting rid of the mold as soon as possible can prevent further growth and the health risks that mold can bring.

Safety Precautions

To prevent any of the negative health effects mold can cause, you must protect yourself. Wear a mask over your mouth, protect your eyes by wearing goggles, wear rubber gloves over your hands and, last, clothing that can be either disposed of or laundered immediately after use. This will help prevent any mold spores from getting into your eyes or lungs.


Turn off your furnace before you begin by shutting off the breaker switch. If you have a gas or oil furnace, turn off the pilot light and fuel supply. Clean any place that mold have gotten into such as the furnace filter, condenser, cooling coils, drip pans, the outside surfaces of your furnace, and any air conditioners or ducts inside your furnace. To get to those places, you may have remove some screws and take off any panels leading to those areas. Spray the areas in your furnace affected by mold with bleach. The bleach will help stop any spores from becoming airborne. It will soften the mold and make it much easier to remove. After spraying the area with bleach, scrub the area using a stiff scrubbing brush. Rinse the furnace with cold water and let the water air dry. If you are short on time, you might want to use a dry rag to wipe off the water. You may need to repeat this process if any mold remains.


Get rid of any excess water or moisture that could be leaking to your furnace. This might mean fixing any leaky plumbing near the furnace. Clean your furnace regularly. If necessary, use a dehumidifier or air conditioner to keep the area where the furnace is housed dry. This will help reduce excess moisture, which is one of the main causes of mold.