We have 2 small, non moulting dogs. We researched the best artificial turf to allow them access to our garden. We had K9 fitted in Aug 2017 by Lawn World. The service was ok. However, in early 2018 large amounts grass and weeds started to grow through the turf. I rang the office and spoke with Sharon in admin. I was told that seeds land on the turf and burrow through the layers and grow up through the turf. The advice was to just pull them out. I wasnt aware I would need to weed my artificial turf. I was offered a free maintainance visit where their employee pulled out all the weeds and grass but said they would return. He did a good job of brushing the turf. More time has passed and the turf is now covered in moss. My husband clears the turf weekly but the moss is very deep. Again I spoke with Sharon who now tells me my warranty offer has expired as I had not paid £240 ( nb the original price was £150) in order to avail this service. In the terms and conditions there is no time limit as to when this warranty offer ends. The company rely on leaving voicemails to make contact with clients. Make sure you get everything in writing unless the calls are recorded. K9 is not a cheap option and this aftercare has let it down.