Thinking of fitting a spare little bathroom

Think you'd be better off with a site visit to be honest. Put you request on Post a Job then you can pick who you would like to visit you and tell you what your options are;what can be done,what can't be done etc....and of course a fixed price for any work. Carl.

If you want a costing for a job then you should really be listing this on the job page,nobody could give you a very accurate quote without viewing first

When installing a toilet in a converted loft space it is always important to make sure of two things. The first is that there is an adequate head height for comfortable use of the toilet and the second is that there is an adequate route for the waste pipe to run at a fall of 1:40 to you're exiting soil stack. To achieve the head height issue it is always best to install the toilet as near to the pitch of the roof as possible. This can be achieved by either erecting a false partition off the party wall to fix the toilet to and running the waste pipe work behind the void, along the party wall and out to the stack. Alternatively to erect a false partition off the purlin wall to fix the toilet to in order to gain the necessary head height for use and still run the waste pipe work out to the stack. If direct access to the soil stack cannot be achieved using 100 mm pipe work at a fall of 1:40 then maybe consider using a saniflo as the pipe work size is smaller and more flexible and so can access the stack easier in constricted surroundings. I hope that this info helps. Lewis Urbanworks

not enough info at all. You need a site visit to work out what is feasable/what is possible and what are your own requirements.

Post this as a job and invite quotes/surveys from your preferred contractors as they register. regards Mark