Removing Mold From Cement Walkways

How to Remove Mold and Mildew From Concrete

By  | Pressure Washer Product Expert

Nothing hurts a proud homeowner's pride quite like a driveway overrun with mold and mildew stains. If your driveway is always in the shade, or you live in a damp climate, it's only a matter of time before your driveway falls victim to a mildew attack.

 

It's frustrating to try hosing mold away and watch it reappear moments after. Scrubbing it off with a push broom doesn't help much either. Below we cover two effective options for removing mold and mildew from concrete.

 

 

1. Scrubbing with Bleach 

Bleach Bucket with Cleaning Supplies

Things You'll Need:

*Pro Tip: Water your lawn well before cleaning to minimize bleach absorption.

Before you begin cleaning, wear rubber gloves. Combine 1/4 cup of liquid bleach with 1 gallon of hot water in a large bucket. To avoid damaging your lawn or walkways, always dilute your bleach and control your runoff when rinsing. 

 

Soak your brush in the solution and scrub the entire area until it's fully saturated. Let it soak before cleaning it up. Never put bleach in your pressure washer, as it'll ruin it.

 

 

2. Pressure Washing with Detergent siding detergent
Use a mold and mildew house and siding detergent that is safe for your pressure washer. It will make your task much easier.

Simply fill your detergent tank, switch the tank to "On," and begin spraying your concrete with soap. Let it soak into the mold and mildew, and you'll be ready to spray it away.

 

Shop Mold & Mildew Siding Detergent

Blasting it Away
Pressure Washing Mold on SidewalkOnce the solution has had a chance to soak into the mold and mildew, power up your pressure washer. Using a powerful tip or turbo nozzle, hold the pressure washer about 10-12 inches from the concrete and begin blasting.

 

The mold should break up and wash away very quickly, leaving your concrete looking cleaner than the day it was poured. To avoid streaking, pressure wash the entire walkway in smooth, overlapping strokes to remove any other dirt or mildew buildup.

 

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