Remedy to Remove Mold From Vinyl

Restore vinyl surfaces by regularly washing off mold and mildew.
Restore vinyl surfaces by regularly washing off mold and mildew. (Image: house siding 3 image by Psycience from

Vinyl is a tough, weatherproof plastic and this makes it perfect for use outdoors as house siding or window and door frames. Although durable and resistant to rot and damage, constant exposure to the elements can sometimes lead to mildew and mold formation. Unsightly black blotches of mold can ruin the appearance of your home, so scrub them off as soon as possible. Cleaning mold from vinyl surfaces is a straightforward task that you can achieve with basic household cleaners.

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An effective way to remove mold and mildew from vinyl surfaces is to use a high-pressure washer or garden hose with a spray nozzle. For vinyl siding and most vinyl surfaces, dishwashing detergent and water will remove mold and mildew effectively. Fill the high-pressure washer’s cleaning solution tank with a few squeezes of dishwashing detergent until the water inside acquires a frothy and bubbly head. For garden hoses with a spray nozzle attachment, fill the detergent dispenser on the nozzle with dishwashing detergent. This will add detergent to the water jet as you clean.


Wash the vinyl siding of all dirt, grime, mildew and mold by spraying the pressure washer wand or garden hose water jet onto the vinyl surface. Stand close enough to the vinyl surface to ensure there’s enough pressure to blast off the mold. Use a long sweeping motion and keep the water running to prevent streaking the vinyl surface. Vinyl is nonporous, so it will not absorb the water. Spray on the water from the top of the vinyl surface and gradually move down. This pushes the dirt and mold down the vinyl surface as you clean.

Stronger Remedies

Simple water and dish detergent should remove all mold, but for stubborn areas of heavy mold you might need to use a stronger cleaner. Choose from several options, including white vinegar, household chlorine-based bleach or oxygen bleach. For bleach, add 3/4 cup of bleach to every gallon of water. For vinegar, mix seven parts water to three parts vinegar. Wear protective gloves while handling bleach. You can also mix laundry detergent powder with water to form an effective vinyl mold and mildew cleaner. You can buy specialty vinyl cleaners from hardware stores and home improvement centers.

Using Stronger Remedies

Apply stronger cleaners with a soft cloth or soft-bristle brush. Use a long-handled brush to reach high areas, if necessary. Fill a bucket with hot water from the faucet and add the right quantity of your chosen cleaner. Soak the cloth or the head of a soft-bristle brush in the cleaning solution. Wipe or scrub the mold and mildew spots vigorously until the vinyl surface is clean. Rinse the vinyl surface thoroughly with clean water from the high-pressure washer or the garden hose.


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