Hi Alastair,
Thanks for thinking about me...... finally managed to get my builder round this morning to looks at the problem we've been talking about. We went up in the loft space and you can see along the ridge there's slight signs of white marks but nothing too obvious.
I guess all it needs it a slight amount of water to get past the felt and it'll travel down the timber to the bottom where the water is showing?
His suggestion is basically to give him £2000 to remove all the tiles to the front section of the house and to re-felt and re-baton. He suggested the the ridge tiles need to come off and the felt needs lapping over this are and completely re-doing.
I have to say that as you look at our house and the right hand side of the roof is the part that hits our row of terraced houses and we're probably taking the worst of all the prevailing weather on this front corner of the house.
He's not given me a accurate complete figure yet but his breakdown of costs is as follows.....
£500 scaffolding
£200 for a couple of rolls of felt
then a weeks laborplus other materials on top.
Not sure if it'll help to post up and more photos of the inside of the loft? Not sure how/if the would come out with it being so dark up there. I mean there are a few patched of light showing through and there's one bit of felt that's hanging down quite badly where they've disruppted it run a TV aerial cable in the loft.
Here's some photo's from the inside of the wet patch which as you can see I've taken down the stud all in this room as I need to move it to accommodate the new shower! Pain but all worth it in the end!
I guess I'm crying out for a roofing expert in the locality to give a second opion on his £2000 figures?!
Here's a couple of photo in the mean time.......