It is mediocre quality of work and absolutely no warranty whatsoever. I got my front steps distorted and my unistone sidewalk collapsed. Neither was repaired. Moreover, they never told "No". It was kind of "Yes! For sure, we will fix it! Give us another month to finish a current project, please!". And it is 3 years like this. So, go with them only if you save $5000+ which you can pay to somebody else for reparation next year. Or, even better, do not consider SJ as your contractor at all.