Gappsi Inc provides professional cleaning and sealing services in Suffolk and Nassau County, Long Island, NY. With our state of the art equipment and top of the line products, we clean patios, walkways, walls, and driveways without damaging the pavers. Our power washer consists of 180 degrees of low pressure steam. Our polymeric sand is

Swimming pool and Retaining wall Built by Gappsi in Woodbury NY, with Travertine patio and coping. Refurbished with the cleaning and sealing process. Using low pressure hot water the paver’s surface gets clean uniformly with no impact of wear on the stone surface. The joints in between the pavers got filled with high quality polymeric

Gappsi newest addition to the cleaning and sealing division. Gappsi provides patios, driveways, walkways, steps and retaining walls restoration. We will bring your outdoor floors back to look brand new again, our state of the art steam washing system along with our exclusive sealers and cleaning products along with our talented and well trained personal

Cleaning and sealing limestone driveway pavers in Roslyn NY. Stones were pressure washed and joints filled with polymeric sand, vibrated wit rolling vibratory plates. Gappsi Exclusive sealer was applied to expose the color and details of the limestone pavers surface. Nassau County Long Island NY Stone Patios and Driveways Cleaning and Sealing Company

It is important to wait at least a year before sealing concrete pavers from the date of installation. Concrete pavers have to cure and must go through a four-season cycle of weathering. This allows most of the lime from the paver’s surface to come out. After the cleaning and pressure washing process, all the lime

Yes! All concrete and paver surfaces should be cleaned before applying any sealer coating. It is very important that the surface is clean because any stains or materials that get trapped under the sealer will not be able to be cleaned after it’s sealed. Pressure washing pavers is just as important as sealing it. Using

Best Long Island Paver Restoration Company Yes! Concrete pavers should be sealed. Paving stones are manufactured with the highest quality cement, but cement is a corrosive material that wears under natural elements. The sun, rain and cold, can easily wear the surface of pavers, and a good sealing job with the right sealing product, applied

Schedule an Appointment with a Gappsi Representative. Paving stone driveway installed by Gappsi in 2008, got refurbished with the cleaning and sealing process. Using low pressure hot water the pavers surface gets clean uniformly with no impact of wear on the stone surface. The joints in between the pavers got filled with high quality polymeric

Nicolock oyster ridge stone pavers being sealed in Patchogue NY 11772. The sealing process begins with pressure washing the entire patio, removing all dirt/debris from the stone surface and in between the joints. Next, Nexgel Techniseal synthetic sand is applied in between the pavers joints and vibrated with a mechanical plate compactor. The plate compactor

Nicolock oyster blend rustico pavers being sealed in Huntington NY 11743. The sealing process begins with pressure washing the entire patio, removing all dirt/debris from the stone surface and in between the joints. Next, Nexgel Techniseal synthetic sand is applied in between the pavers joints and vibrated with a mechanical plate compactor. The plate compactor

Suffolk County 27543-H1 9-10-99 to present, 15435-H1 7-1-88 to 7-1-97  Nassau County H2209100000  Southampton L002384  NYC and The Five Boroughs 1321423

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