top of page

How To Clean A Patio With Bleach: A Step-by-Step Guide

Dirty patio before cleaning with bleach

Step By Step Guide On How To Clean A Patio With Bleach


Cleaning your patio can rejuvenate your outdoor space, making it a welcoming area to relax and entertain. Over time, patios can accumulate dirt, moss, and algae, diminishing their appearance. A cost-effective and efficient method to clean patio slabs, whether they are natural paving stones, concrete paving, or man-made concrete slabs, is using a bleach solution. This guide will take you through the process of using bleach to clean your patio, ensuring it looks its best.

Prefer a stronger cleaner? Check out our Sodium Hypochlorite Patio Cleaning article.

Preparation and Safety Measures

Clearing and Preparing the Patio

Step 1: Remove Obstacles

Begin by clearing your patio area. Remove patio furniture, plant pots, and any decorative items to ensure a clear working space. This step is crucial for achieving an even and thorough clean.

Step 2: Sweep the Patio

Use a stiff brush to sweep away loose debris, dirt, and leaves from the patio slabs. This preliminary cleaning helps in exposing the surface for a more effective bleach treatment.

Step 3: Safety Precautions

Before starting with the bleach solution, it's essential to wear protective gloves to safeguard your skin. If you have sensitive plants around, cover them or move them away to prevent damage from bleach splashes.

Preparing the Bleach Solution

Step 4: Mixing the Solution

In a bucket, mix a bleach solution using one part bleach to five parts warm water. For tougher stains on paving slabs, add more bleach and consider adding a bit of soapy water to the mix for enhanced cleaning power.

For a more cost-effective solution, explore Sodium Hypochlorite (aka Super Strength Bleach) for patio cleaning.

Step 5: Testing the Solution

Before applying the solution to the entire patio, test it on a small, inconspicuous area. This step is crucial to ensure the bleach doesn't discolour your paving slabs, especially if you have natural or artificial stone surfaces.

Application and Cleaning Process

Applying the Bleach Solution

Step 6: Wet the Surface

Before applying the bleach solution, lightly wet the patio slabs with a garden hose or watering can. This pre-wetting helps the bleach solution to spread more evenly and penetrate the surface better.

Step 7: Apply the Bleach Solution

Using a watering can or a spray bottle, evenly distribute the bleach solution over the patio. Focus on areas with visible stains or where algae and moss have accumulated.

Step 8: Allow Time to React

Let the bleach solution sit on the slabs for a few minutes, but don’t let it dry completely. This resting period is critical for the bleach to effectively break down the dirt and stains.

Scrubbing the Patio

Step 9: Scrubbing with a Brush

After the bleach has had time to work, use a stiff brush to scrub the patio slabs. This helps in removing stubborn dirt, moss, and algae. Pay special attention to the grout lines and edges.

Step 10: Dealing with Tough Stains

For tough stains, you may need to apply a bit more elbow grease or repeat the application of the bleach solution before scrubbing again.

Rinsing the Patio

Step 11: Rinsing Off

Once you’ve scrubbed the entire patio, rinse it thoroughly with clean water using a garden hose or a pressure washer. Ensure that all traces of bleach and loosened dirt are washed away.

Step 12: Check for Missed Spots

After rinsing, inspect the patio for any missed spots or areas that might need a second pass. Repeat the process if necessary, focusing on these areas.

Post-Cleaning Care and Maintenance

Final Inspection and Touch-Ups

Step 13: Inspect the Patio

Once the patio is dry, do a final inspection. Look for any remaining stains or areas that might need additional cleaning. If necessary, apply a targeted spot treatment with the bleach solution and rinse again.

Caring for Your Patio

Step 14: Prevent Future Stains and Growth

To prevent future growth of black spot, moss, algae, or weeds, consider applying a sealant on your paving slabs. This can also help in making future cleaning easier and more effective.

Step 15: Regular Maintenance

Regular maintenance is key to keeping your patio looking its best. Sweep it regularly to remove debris and consider a light cleaning with soapy water every few months.

Reassembling the Patio

Step 16: Return Furniture and Plants

Once the patio is completely dry and clean, you can start returning your patio furniture and plant life to their places. Ensure everything is tidy and arranged as you desire.

Step 17: Enjoy Your Revitalised Patio

Now that your patio is clean and fresh, it’s time to enjoy your outdoor space. Whether it's for a quiet morning coffee or an evening with friends, a clean patio enhances the experience significantly.


Cleaning your patio with bleach is an effective and budget-friendly way to maintain your outdoor space. Remember, regular maintenance can significantly reduce the need for deep cleaning and will keep your patio looking great year-round. For more detailed methods on patio cleaning, don't forget to check out our comprehensive guide, "How to clean patio slabs: 5 Different Cleaning Methods."

Frequently Asked Questions

Is bleach OK to clean patios?

Yes, bleach is effective for cleaning patios, especially for removing tough stains, moss, and algae. However, it should be used cautiously and in the right concentration to prevent damage to the slabs and surrounding plant life.

How do you clean a concrete patio with bleach?

Mix a bleach solution (Try 1 part bleach to 5 parts water and increase the amount of bleach if desired results are not achieved after performing a test), apply it to the concrete, let it sit for a few minutes, then scrub and rinse thoroughly. It's effective for cleaning and disinfecting concrete patios.

What is the best homemade patio cleaner?

A mixture of vinegar and water or a diluted bleach solution is often effective for cleaning patios. For tougher stains, adding a small amount of detergent can help. Always test homemade solutions on a small area first.

Do you need to rinse bleach off concrete?

Yes, it's crucial to thoroughly rinse off bleach from concrete to remove any residue. This prevents potential damage to the concrete and ensures safety for pets and plants around the patio.

1 Comment

Rated 0 out of 5 stars.
No ratings yet

Add a rating
Mar 18
Rated 5 out of 5 stars.

I am about to try cleaning the paving and steps around my garden. Your advice is very clear and sensible. Thankyou😃

bottom of page