Keystone ® Segmented Retaining Wall Systems
Apple Lawn Service can design and install, utilizing a clients desires and imagination, numerous styles, colors and types of Keystone ® wall systems. Keystone's non-corrosive, non-deteriorating materials stand up to all that nature offers. Keystone walls do not discolor, deteriorate, warp, or rot like conventional landscaping timbers. The mortar-less design provides built-in drainage for hydrostatic water pressures that destroy traditional walls. Keystones high strength, low absorption concrete withstands freeze-thaw cycles that are prevalent in the Pittsburgh area.
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