Nacho Garcia of Four Trees Landscaping installed patio paver bricks for me in 2011. The following year I contacted Nacho stating an area of brick was sinking. Finally after numerous phone calls complaing, Nacho came out in Sept 2014 with a crew and repaired the area. Now the area is buckling up. I called nacho and sent him more pictures. Nacho's reply??? The bricks are old, thats why they are no good. Im tired of dealing with you, Nacho hung up.