Thanks, DV. I'm home during the day so can keep a check of what they are doing and using.
We recently had a kitchen extension done and had no choice in the contractor as it was through a Disabled Facilities Grant for my son and they were such a bunch of cowboys. 11 weeks to add 2.5x3m to the back of the house and add a bathroom where part of the old kitchen had been! They tried to cut corners every way they could.
The builder only does lofts and 90% of his business is word of mouth. He comes recommended through my son's school friend (well, his parents) and I've seen their conversion, so hopefully all will be well.
I'll try to get a pic of the roof opposite tomorrow if it is still snowy, seems to be melting here.
Seren - good to know.