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5 Plumbing Problems That Can Cause Mold

5 plumbing problems that can cause mold

Issues with your plumbing can lead to water damage, standing water, moist conditions, and other problems you do not want. Moist conditions in a cool and dark area such as under a cabinet or in the basement can become a perfect growing bed for mold. Having mold left growing untreated in your home can lead to a variety of health issues in you and your family, as well as permanent damage to your property.

Under Sink Leaks

A minor leak under the sink can often go overlooked. A very slow occasional drip of water can lead to damp areas around the plumbing, or small puddles of water on the shelving under the sink. Since the under sink area is normally kept closed, the dark and damp conditions can be a prime location for mold to start growing.

An under sink is the most common plumbing issue one can face, but luckily the issue is easily fixed once it has been noticed. Homeowners can locate the leaking area, which is normally a problem with the seals at a pipe connection, and either replace the seal or the entire fixture.

Hidden Leaks

Leaks between floors or in the walls can be extremely difficult to notice as the pipes are completely hidden. A very small and slow leak can soon lead to moisture issues and mold growth in a short amount of time.

You may eventually notice damp areas or water stains on the walls, ceiling or floor that can give you a hint of where the leak may be. If water stains are not discovered, an increased water bill or the water heater kicking on during strange times may alert you to a possible hidden leak.

Stagnant Water

Slow or clogged drains can become another issue that causes mold, mildew, and attracts insects. When the drain does not allow water to flow through quickly and efficiently, the water that stays in the tub, shower stall, or sink can turn stagnant. Not only will this cause questionable odors in the room, but it can also attract insects, start to grow mold, mildew, and leave hard water stains.


Both hot and cold pipes can create condensation if they are not properly insulated. As the temperature of the pipes contrasts with the ambient air temperature, moisture can form on the pipes and drip down onto the floor or wall. As water collects in the drywall and wood from the condensation droplets, mold can start to form in this dark and damp location.

Flooding and Backups

If you have a busted pipe or backed up toilet or sink, it’s extremely important that you take care of it as soon as possible. Flooding and any standing water from a backup can very quickly spread and soak into every available corner of the room, leading to water damage and stains around foundations and studs. This also leads to mold and mildew growth, as well as attracting termites and other insects.

Get in touch with us if you need a water heater repair or a leak detection and repair service in Concord.