Is it worth getting the tiles roof cleaned?

Posted by Significant-Leek8483@reddit | AskUK | View on Reddit | 40 comments

Have been living in this house for 5 years now and havent got the roof tiles cleaned. They look a bit tired now especially compared to the neighbours. Is it worth cleaning? Or should I just wait for a few years (how many?) when its time to perhaps replace it all. Never had any tile slip or other issue, so not sure how long they would last really. Its a 4 bed semi fwiw.