I wouldn't do it myself, to be honest. It seems to me that it is more reliable to pay specialists to do it correctly and with high quality. After all, you don’t want to spend a lot of money on building material, on laminate and, in the end, ruin everything. I contacted CBS Renovation https://cbsrenovation.nl/ regarding plumbing repairs. I know that they provide a wide range of services, including, I can help with laying laminate or parquet. I advise you to contact them. And if you still plan to do it yourself, then I wish you success.