Battling Efflorescence: The Definitive Guide to Removing it from Your Pavers.

Efflorescence is a common phenomenon that can occur on pavers, leaving behind unsightly white deposits on their surface. This naturally occurring process, though harmless, can be a cause of frustration for homeowners and detract from the aesthetic appeal of their outdoor spaces. But fear not! In this comprehensive guide, we will explore the causes of efflorescence, its impact on pavers, and most importantly, effective methods to remove it and restore the beauty of your paved surfaces.

Understanding Efflorescence: Efflorescence is the migration of salts to the surface of porous materials, such as concrete and natural stone, through the process of water evaporation. When water seeps into the pavers, it carries dissolved salts along with it. As the water evaporates, the salts are left behind, forming a visible white residue.

Causes of Efflorescence

Efflorescence is a naturally occurring phenomenon.  Several factors contribute to the formation of efflorescence on pavers. These include:

  1. Water: Excessive moisture can lead to efflorescence. Rainwater, sprinkler systems, or even the cleaning process can introduce water to the pavers, enabling salt migration.
  2. Salts: The presence of salts in the pavers themselves or in the surrounding soil can contribute to efflorescence. Common salts include calcium carbonate, calcium sulfate, and sodium chloride.
  3. Temperature and Humidity: Higher temperatures and humidity levels can accelerate the evaporation process, increasing the likelihood of efflorescence.

Removing Efflorescence from Pavers

Now, let’s delve into the effective methods to remove efflorescence and restore your pavers to their former glory:

  1. Dry Brushing: Start by using a stiff brush or broom to vigorously scrub the affected pavers. This method helps loosen and remove the superficial layer of efflorescence. Remember to wear protective gloves and a dust mask while performing this task.
  2. Water Rinse: Thoroughly rinse the pavers with clean water to remove any remaining efflorescence particles. A high-pressure hose or a pressure washer on a low setting can aid in dislodging the residue.
  3. Efflorescence Cleaners: There are various commercial products available specifically designed to remove efflorescence. Follow the instructions provided by the manufacturer carefully, as different products may have varying application methods and contact times.

Preventive Measures

While efflorescence cannot always be avoided, taking preventive measures can minimize its recurrence. Consider the following steps:

  1. Proper Drainage: Ensure that the paver installation allows for adequate water drainage. This can include installing permeable paver systems or creating a slope to redirect water away from the paved area.
  2. Avoid Overwatering: If you have a sprinkler system, adjust it to prevent excessive water saturation on the pavers.

Regular Cleaning: Periodically clean your pavers to remove dirt, debris, and potential sources of salts that could contribute to efflorescence.


Efflorescence may seem like a daunting issue, but armed with the knowledge of its causes and effective removal methods, you can easily restore the natural beauty of your pavers. By following the steps outlined in this guide and implementing preventive measures, you can enjoy a clean and visually appealing outdoor space free from the clutches of efflorescence. Remember, efflorescence is not a warranty issue.  Efflorescence occurs naturally within concrete pavers because of their inherit material.  However, a little maintenance can go a long way in keeping your pavers looking pristine for years to come.