The Sealing Application Process

Joint Sand Colors Tan/White or Beige/Gray

Tan-White and Beige-Gray sand-colors-used-for-polyurethane-sealer-applications-only
Used for Polyurethane Sealer Applications Only


  • Our process of restoring your pavers starts with the cleaning utilizing hot water and a low-pressure high-volume pressure washing machine.

  • Chemicals will be used if needed to remove any stains or if stones need to be treated. We also offer repairs of stones that are shifted, damaged, or lost that need to be fixed before the patio is sealed.

  • As part of our restoration process, we will readjust any mulch in the flower that gets blown away from pressure washing, and clean the fence or house if they get dirty from our process.

  • After our joint’s polymeric sanding installation process, we will compact pavers with state of the art vibratory compactor to allow the sand to fill the joints.

  • We will vacuum any debris, sand, or dust that falls into the pool water with our own vacuuming and filter system.

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Gappsi covers a 1-year warranty for all polymeric sand and sealer. Due to the natural elements (rain, snow, ice, and heat), the urethane sealer will gradually and uniformly weather away, but the surface of the pavers will remain weather-proof. The use of cleaners to remove oil stains, rust, and efflorescence might wear or discolor the stones to remove the stain. Removal of stains is not 100% guaranteed to be completely removed. The installation of polymeric sand will reduce but not completely eliminate the growth of weeds and moss, because dust and dirt will eventually collect on the surface of the stones and germinate again.


We do not seal patios for occasions or parties. We seal for long-term care of your stones. We select the best days the weather allows from April 1st through October 30th. We cannot guarantee a scheduled date. All jobs that do not get completed this season will automatically be moved to the following season. We politely request that you be patient and wait for us to contact you when we are getting ready to provide our services.

What types of sealer we use?

  • We use colors enhancers or natural look, penetrating or surface coating sealers. based on the application, clients expectations or our suggestions. The sealer we select is determined by the type of stone we are applying it to, dipending on; stone age, texture, color, and type of stone such as natural stone or concrete pavers.
  • Natural stones have different consistency of structure and these will absorb the sealer differently; some may require a slip resistance added to the surface, others might require penetrating sealers, and others might require surface coating enhancing sealers.
  • Concrete pavers also have different absorption, structures, and textures, and based on the look you requested we will use the appropriate sealer. For example, gray pavers would darken if a color enhancer sealer is used, a gray silver will turn into charcoal gray.  Please ask questions if you have any concerns.
  • All sealers have a purpose and to deliver a certain finished look, the preparation of the surface that its going to be sealed is most important for the performance of the finished coating.

What Does Sealer Accomplish?

The sealer will enhance the color and beauty of your stones.  It will also reveal imperfections.  Once applied the sealer may show inconsistency of your colors and textures. We use the sealer according to your request and liking. You can choose a color enhancer that will intensify the color of your stones. Additionally, you may choose a nonenhanced sealer look that will slightly enhance the appearance of your stones. Both sealers will make your stones water-repellent and stain-resistant.

Do You Have an Ant Problem?

Ants can rarely dig through the sand after this process, but it is out of our control if it happens. Occasionally, ants may find their way and dig through the sand. You might have to put chemicals in the nests until they are no longer there and then we can refill the holes with some polymeric sand.

Moss and Surface Weeds

Moss is a natural occurrence of vegetation that grows over the soil and dust that settles on the surface of the pavers. Especially in poor drainage situations such as damp and shaded areas, moss and some weeds grow over the pavers’ surface and in deeper grooves. The sealer does not correct the slope of the patio or prevent moss and weeds from growing on the pavement surface, because it is vegetation that occurs over the sealed pavers.

How to maintain your sealed paver

To maintain a sealed surface after it’s properly sealed, all you have to do yearly is to use Clorox disinfecting bleach mixed with water, one part of liquid Clorox to five parts of water and spray it on the patio on a dry sunny day and leave it on it, With No Further Actions required. 

Do not Use a pressure washer to clean your sealed patio,