A lot of our San Ramon work is in garages, the two- and three-car slabs in the newer subdivisions that have carried cars, storage and workbenches for years, plus pool decks and the odd shop floor. People usually ask about the coating first. I want to know what the concrete under it has been doing.
Expansive soil, clay that swells when it's wet and shrinks as it dries, shows up across San Ramon, enough that the city's building code addresses it. That's a citywide note and says nothing about your lot in particular, but it's why I look closely at cracks, lifted joints and old patches before we pick a system, since a crack that's still moving will usually come right through a new coating.