A project with a variety of stages. We had to clear the old carpet, to undercut the skirting, to fit new skirting in storage, to apply liquid DPM over a small concrete surface, to build a seamless step to join the new engineered floor with the existing one in the most discreet manor possible...
Always choosing right materials and craftsmanship, is cheaper than any other option. A good advice is to contact a specialist in this field and ask his opinion. You will be surprised how many subtle issues could arise no matter you need a new wooden floor or trying to recover the old one.