We were replacing skylights that were actually only 6 years old that had leaked. We had therefore been very interested in the warranty's offered after realising that this repair wouldnt be covered even by a 10 year warranty (some other companies have clauses that disallow the warranty to be transferred between home owners or are quite short). We took it as a sign that they stand by their work that they offered a solid warranty. They were very professional, quick and clean and offered great advice. We enjoyed working with them but hope we wont have to see them for a long time!