We can recommend Southern Cross in Kew. www.southerncrossflooring.co.uk and 020 8404 1010. They laid our floors for us about 6 years ago, including sanding and varnishing. No idea of price for just sanding and polishing, but from memory it should take two, maybe three days. One day to sand, probably just one day to varnish, but you may need two days to allow drying time between coats. With 40 sq.m. you might be lucky and get it done in one day
Andrzej Kowalski ● 2269d