Originally Posted by needforspeed
This is good advice. Cost isn't the key factor.
What you really want to know is that they will turn up, diligently complete the job to a workmanlike standard and not bugger off before it's finished.
That's worth paying extra for - if you can find it.
As to the contractors ability ... in the end this is pretty much a conservatory with a tiled roof. It's not rocket science and they should be able to do it. I'd just want to see some very positive recommendations from previous customers with 'complex' conservatory installs.
As I think I mentioned earlier - the company is actually a window and conservatory company, they sub the building work out to the same company who they spend about half a million a year with (apparently) on ground work and building work. As NFS says they are pretty much doing a conservatory with a roof, but very good advice to get a recommendation from their conservatory work for a complex example....