<p>Hi Harry,</p>

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<p>From the photos there does not appear to be much wrong, moss on tiles maybe causing capillary action, but doubtful, if its underneath the valley then possible split in lead or more likely some of the mortar pointing has cracked.</p>

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<p>I&rsquo;m assuming your lads have discounted blocked downpipes or gutters causing things to back up</p>

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<p>A survey is not really going to give me much more information that you have provided, really need a couple of lads up there to sweep clean the tiles and valley and have a really good look&nbsp;</p>

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<p>Problem is we are really over stretched at the moment so unless its urgent we couldn&rsquo;t get there for 2 -3 weeks and if its a school and we need DBS checks could be even longer&nbsp;</p>

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<p>Two men to clear moss and debris from general roof area above the leak, check the local area for any defects, i.e. cracked tiles, splits in lead or defective mortar pointing along sides of lead valley then carry out suitable repairs</p>

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<p>Provide access tower</p>

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<p>Total Cost: &nbsp; &pound; 750.00 + VAT</p>
