How To Clean Concrete Patios

How To Clean Concrete Patios

Keeping your concrete patio looking pristine enhances your outdoor living space. A clean concrete surface allows you to fully enjoy hosting gatherings, dining alfresco, or simply relaxing outside. Implementing a regular cleaning regimen removes debris, prevents staining, and restores the concrete’s original appearance. This guide covers all the techniques and tools you’ll need to properly clean your concrete patio.

Reasons To Clean Concrete Patios

Maintaining clean concrete offers multiple benefits:

  • Removes dirt, leaves, pollen – Clearing debris preserves the patio’s aesthetic appeal and prevents slip hazards.
  • Avoids staining – Promptly cleaning spills and soiled areas stops stains from setting into the concrete.
  • Extends lifespan – Regular upkeep protects the integrity of the concrete surface.
  • Enhances curb appeal – A spotless patio boosts your home’s exterior visual interest.
  • Makes outside tasks easier – Keeping the area clear of debris facilitates gardening, grilling, and other activities.

Cleaning Newly Poured Concrete

Addressing brand new concrete requires patience. You must allow adequate time for the concrete to fully cure before attempting to clean or seal it.

  • Wait at least 30 days after installation to clean. Concrete reaches 75% of its strength at around 14 to 30 days but requires additional time to complete the curing process.
  • Remove construction debris using a broom or leaf blower. Wear protective equipment to avoid contact with skin and eyes.
  • Use a hose-end spray nozzle to lightly rinse remaining debris after sweeping. Apply a gentle stream of water, avoiding high-pressure washing.
  • To remove more stubborn dirt or stains, use a concrete degreaser after 30 days. Test first in an inconspicuous spot before applying across the whole patio.

What You Need To Clean Existing Concrete

Assembling the proper gear makes washing concrete efficient and effective. Gather these supplies:

  • Garden hose – Features an adjustable spray nozzle to control water flow. Allows reaching entire patio area.
  • Stiff bristle broom – Sweeps up loose debris before washing. Look for a broom with thick, durable bristles.
  • Concrete degreaser – Specialized cleaners designed to lift oil, grease, food, and other stains without harming concrete.
  • Pressure washer (optional) – Higher psi models effectively remove stubborn stains. Use cautiously to avoid damaging concrete.
  • Protective eyewear and gloves – Guard against debris, chemicals, and water spray.

Cleaning Techniques For Concrete Patios

Tackling an excessively dirty concrete patio may involve progressively working through multiple cleaning methods listed below from least aggressive to most intensive.


The first step is to sweep up all loose debris using a stiff bristle broom. This allows you to remove leaves, grass clippings, soil, spiders and cobwebs so the particles don’t interfere with additional washing. Make sure to sweep along the patio’s edges and corners.

Using A Garden Hose

After debris removal, wash the patio using a garden hose with an adjustable nozzle. Start by spraying a light stream of water over all areas of the concrete. Then switch to a more focused stream to target any visible stains. Rinse for at least 10 minutes, working systematically from one end of the patio to the other while overlapping strips.

Applying Concrete Degreaser

For stubborn oil, grease, food, drink or rust spots that resist hose washing, use a concrete degreaser product. Check the manufacturer’s directions but typically you’ll dilute the cleaner with water in a pump sprayer then evenly apply it across stain areas. Let it soak for 10+ minutes. Rinse thoroughly with a gentle spray from the hose. Wear gloves and safety glasses when handling degreaser chemicals.

Employing A Pressure Washer

For extremely dirty concrete with extensive staining or mold and mildew buildup, pressure washing may provide the extra cleaning power needed. You can rent electric or gas-powered pressure washers that produce higher water psi. Carefully operate the pressure washer to prevent damage by following these tips:

  • Never use “turbo” mode which intensifies psi beyond safe concrete cleaning range.
  • Maintain a 12 inch distance between surface and nozzle.
  • Use a fan spray tip angled at no more than 45 degrees.
  • Clean sections systematically with overlapping passes.
  • Apply sealant after washing concrete to help repel future staining.

Keeping Your Concrete Patio Clean

Regular maintenance prevents concrete from re-collecting dirt and stains after cleaning. Follow these habits:

  • Sweep weekly and after windy days.
  • Check for new spills after gatherings or meals on the patio. Spot clean promptly.
  • Remove accumulated leaf litter and other organic debris which can create stains.
  • Establish a monthly or biannual washing schedule using a degreaser. Adjust frequency based on usage and weathering.
  • Re-apply concrete sealant every 1 – 3 years.
  • Address cracks or damaged areas to limit moisture intrusion which causes deeper staining.

Troubleshooting Difficult Concrete Stains

Oil and Grease

Degreasing products work well for minor oil stains. Be patient and allow multiple treatments if oil penetrates more deeply. Minimize future oil spills by designating one area for grill cleaning.

Rust Stains

For orange rust marks caused by patio furniture, apply oxalic or phosphoric acid poultice paste. Cover for 24 hours then rinse. Neutralize and clean residue.

chewing gum

Freeze gum with ice then scrape residue with a plastic scraper. Avoid damaging concrete. Alternatively, apply freezing spray to harden the gum and make it easier to chip off.

Mold and Mildew

Mix 1 part bleach with 4 parts water. Scrub onto stains and rinse. For tougher cases, use a chloride-based cleaner. Improve patio drainage if you continually battle mildew.

Leaf Staining

Dry, crushed leaves release tannins that can etch concrete. Damp leaves additionally cause mold or fungus stains with darker edges. Remove leaves promptly before staining sets.

By implementing the cleaning, maintenance and troubleshooting tips covered in this guide, you can keep your concrete patio looking like new for decades. Consistent care saves major restoration work later.

Contact Sullins Suds Pressure Washing to help you clean your concrete patio!

Don’t Stop Here

More To Explore
How To Pressure Wash a Rug
How To Pressure Wash a Rug: Washing, Drying, and Maintaining

Pressure washing a rug requires careful attention to detail to avoid damaging delicate fibers. Follow these steps for optimal results:
1. Preparation
2. Choose the Right Pressure Washer
3. Detergent Selection
4. Test Spot
5. Even Application
6. Rinse Thoroughly
7. Allow to Dry

By contacting us, you open the door to a world of possibilities and collaboration. Whether you prefer to send us an email, give us a call, or connect through our contact form, we are here to listen and respond promptly. We value your time and are committed to providing exceptional customer service, so don’t hesitate to contact us today. 

Get In Touch

Contact Sullins Suds

Contact Our Sales Team