This company is actually really good, I used another company from this site yell.com but the guy took six weeks saying my proposal for back extension has been declined.

So I spoke to GR engineer: Mohi, he advised on very small adjustment, re negotiated with the planning committee and then got approval with his new drawing plans as well all in 6 days. I should have used GR from the start so by now I would have a new bedroom and kitchen. GR also managed and organised to source the builders for me who has already started the work.