1cm could be filled with strips of oak and glued in. Filler for smaller gaps. Maybe get a couple of quotes from flooring specialists? Would be a shame to rip that out. Sanding/filling and refinishing period flooring is very in, you shouldn't have difficulty finding local tradesmen who could do it for you.
1cm could be filled with strips of oak and glued in. Filler for smaller gaps. Maybe get a couple of quotes from flooring specialists? Would be a shame to rip that out. Sanding/filling and refinishing period flooring is very in, you shouldn't have difficulty finding local tradesmen who could do it for you.