*Subject to credit approval.
We generally recommend that the underlayment be removed because the subfloor may not be adequate to support tile. However, if your existing vinyl floor was installed over an adequate subfloor using a full spread installation method then yes, it can be done if you use the proper installation products.
No, unlike hardwood flooring, once laminate is worn it cannot be refinished.
Most laminate flooring is considerably more scratch resistant than hardwood flooring, but it still scratches and wears when exposed to pet nails.