We have just done similar work. I am afraid that this is more of a warning to steer clear, than a recommendation. After a lot of research and after numerous recommendations on this site, we employed Porters Developments. Initially they were fabulous but is seems that the pandemic has had an effect on the company and they disappeared from site in December, leaving me with a half completed job. The owner has now, I believe, moved back to Poland. I think that he is trying to sell the business as a going concern. We have been left in an awful situation, be wary.