Keystone Walls Inc. designs, installs and builds custom retaining walls for properties in Nassau County and Suffolk County on Long Island.  Retaining walls can help repurpose outdoor spaces and add the perfect accent to your residential or commercial properties.  Aside from the pleasing aesthetic for an outdoor space, the walls hold practical functions. 

Retaining walls rebuild landscapes by creating more usable spaces.  Keystone Wall inc can engineer support walls for the purpose of eliminating slopes.  They can also prevent erosion by supporting soil to create a more even outdoor layout.  The types of retaining walls that we design support a multitude of materials such as: concrete retaining walls, wood retaining walls, stone retaining walls and Keystone retaining walls or keystone blocks.

Retaining wall materials:

• Boulders
• Non decorative block
• Colored concrete block
• Poured concrete
• Wood ties