How to Remove Mold from a Gutter

A gutter is a channel that carries water from the roof’s edge and directs it to a downspout, which in turn transports rainwater away from your house. Gutters protect against soil erosion, prevent damage to structures, and help hinder the accumulation of debris on roofs.

However, one major issue with gutters is mold growth when they are not properly maintained. Mold needs moisture and darkness to grow, so you don’t have to be surprised if they start building up on your neglected gutter.

Effects on Health

If you notice any black spots on your gutter system, it may be time to remove them, as you won’t want to suffer from their effects. Mold is not only known for damaging your home but can also have significant health impacts on you and your family members. You may not know it, but molds may be the cause of some of your illnesses, especially respiratory problems. Molds can also trigger allergies, skin irritation, and headache.

Mold Removal

Mold is a common problem in many homes, especially those with shingles or gutters. Not only is it unsightly, but it also brings health risks. But for you, here are five easy steps to eradicate all the mold in your gutters.

  • Step 1: Clear out any forms of debris like leaves and twigs so you can have an easier time clearing out the molds.
  • Step 2: Using a pressure washer, wash off the molds on the surface. After this, run your cleaning agent through the gutter and let it soak for a while.
  • Step 3: With a soft bristle brush, thoroughly scrub your gutters from one end to the other. Make sure not to leave a single speck of mold. Disconnect the downspouts carefully and use an extended brush to reach every nook and cranny.
  • Step 4: Rinse your gutters with clean water and reconnect the downspouts.
  • Step 5: Remember to check and clean your gutters at least biannually because leaves, small twigs, and moisture usually pile up here, making it the perfect site for molds.

While cleaning your gutters, don’t forget to prioritize your safety. If you’re ever using a ladder, ensure that it stands firm so you’ll have less risk of falling. Wear proper equipment like gloves to prevent physical contact with the chemicals you’re using. Goggles help you protect your eyes from foreign objects that may fly around like mold or dirt. Wearing a face mask is also sometimes necessary to avoid inhaling dangerous chemicals.

If you’re not up to cleaning the gutters yourself, you may want to hire a professional gutter contractor. Spout Gutter Pros (see homepage) helps you find licensed contractors anywhere in the country who specialize in gutter installation as well as cleaning and repair services.

What Cleaning Agents Should You Use

Choosing suitable cleaning agents is essential to efficiently remove the molds and avoid having any adverse side effects on the environment.


Bleach has been used by many people as a weapon against mold.  It works by destroying the cell walls, thereby disabling their ability to reproduce or produce toxins that could harm people’s health. However, bleach is ineffective against molds on porous materials as it cannot penetrate below the surface.


Vinegar is a great natural way to remove mold. It contains acetic acid that kills up to 82% of mold and other bacteria on the surface of guttering. This helps prevent them from spreading inside your home. Moreover, vinegar does not emit dangerous gases, unlike bleach. White distilled vinegar is most effective in removing mold. Spray it on affected areas and let it sit for an hour. You can then effortlessly wipe the area with water and let it dry.

Hydrogen Peroxide

Another option to remove mold is hydrogen peroxide, which can be bought in most pharmacies. Contrary to bleach-based products, hydrogen peroxide is safe and eco-friendly. It works by releasing oxygen bubbles which will then dissolve the mold from the edges of your gutter to make it easy for you to rinse them away with water.

Baking Soda

Baking soda is also an excellent alternative to remove mold. You only need two cups of water and one cup of baking soda. Mix them until the consistency becomes like pancake batter. Pour and let everything sit for about an hour before you continue the job. Baking soda and water create a reaction that releases heat and bubbles to cleanse your gutter of any pesky grime.

Mold Prevention

Removing the mold will not be enough, and it will surely return sooner than you’d expect. So it’s better to think of possible ways to prevent it from coming back.

Mold generally develops in damp, dark areas like attics, walls, basements, and gutters. The best method to stop them from growing in these areas is by keeping them dry, clean, and well-ventilated.


Mold is a pesky infestation that can damage your home and your family. Fortunately, there are many ways to remove and prevent them from growing. It would also be worth noting to hire a reliable gutter contractor with a trustworthy reputation and track record. They can help create a gutter system that will last for years to come.