My driveway slopes down from street level to basement garage level. On the house side of the driveway there is a stone retaining wall that will need to be replaced soon. The wall height tapers from about 33 inches (next to the garage) down to zero inches and the length if about 25 feet or so.
I'm thinking of installing a segmented retaining wall system. Manufacturers I've noticed include Versa-Lok, EP Henry, Unilock, Alan Block, Belgard, Keystone, Old Castle etc.
I've heard that Versa-Lok and EP Henry are the best, although I don't think EP Henry distributes to New England. (I live in Mass, NW of Boston.) Versa-Lok advertises that they don't need a foundation below the frost line, and I assume others are similar. Instead you build one course below grade and the wall system is designed to be flexible during frost/thaw.
I'm not sure if this is something I want to tackle myself or if I will contract out the job. On what hand I would take a lot of pride in the work and probably have some fun. The wall isn't terribly long and is only 33" max tall. But on the other, it seems to be more difficult because the base of the wall slopes and I can't excavate in front of the wall because of the existing driveway.
Does anyone have any thoughts about what product(s) to use, some realistic expectations of how to install with a sloping base, or what I should look for in contracting the job if I go that route?