Search for "extra costs with low quality"
We may say this floor is totally unique and there is none in London alike. Each board is individually cut to create a design pattern. To complete the exceptional appearance the floor joins seamlessly with the walls, not having a skirting or additional trims, the expansion gap being discreetly concealed.
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.