our roof was treated by Weatherguard and on 4th June 2010 we received a 25 year guarantee.
the work and guarantee cover against 'flaking, peeling, discoloration,moss and growth.
approx a year after the work was done we received a letter telling us that the company had changed owners and the guarantee was no longer valid. we were given an option to pay £35 to retain the guarantee with the new owners. we decided not to take this up.
now the roof is showing signs of a moss regrowth and the pointing between the ridge tiles has come away in many places revealing the old white mortar beneath.