West Islip NY Need a Landscape and Masonry Company. Gappsi Offers full Services from Design to Installation This backyard is designed and constructed by Gappsi in West Islip, Long island NY 11795. The layout incorporates a 18×36 gunite swimming pool rectangular shape. The swimming pool is only 6 feet deep and is a non-diving pool, thus

Custom Quartzite Gunite Pool Finish in Sag Harbor by Gappsi This private residence located on Long Island, NY features the design & installation by Gappsi Group. The image to the left pictures our team applying a custom Quartzite finish on a beautifully designed Gunite pool and spa which overlooks the water on the Sag Harbor sound.

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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