I'm not a hardscaper, (I don't like hard work ) Anyway, I had this lady phoning constantly, she wants her eavestroughs cleaned and she wants her side walk raised one inch. I told her I'll clean the eaves but I don't sidewalks. But she kept asking me so finally I looked through the community newspaper and gave her the number of the nicest ad I seen. I did tell her, I DO NOT know this guy but he's advertising he does this work. Anyway, I go clean her eaves and she tells me that guy was supposed to come and give her and estimate. The guy told her what he does is put boards underneath to raise the sidewalk. I was like I'm wondering if that is normal, because I thought they would just put more gravel and tamp it. She was no dummy either, she know about compacters etc. What she had was those square sidewalk block 2' x 2' or so. I want to know if it's good pratice to lift them up and put boards under them or what? I reminded her again that I DO NOT know this guy.