Synthetic grass is very durable and should last for many years. It is resistant to wear and tear from regular use - even energetic sporting activities or the running-around of children - and will also resist fading as a result of exposure to sunlight and other environmental conditions. As such, it will stay both physically sound and great-looking for a long time with only a little maintenance - primarily an occasional sweep to remove debris and lift the pile.
An exact figure for the number of years your grass should last without needing replacement is hard to state with any certainty. It depends heavily on the type of grass used and the conditions it is in. However, most domestic users can expect a lifespan of over ten years.
There is one other reason you may want to replace artificial grass: to upgrade. Artificial turfs have come a very long way in recent years and are much more realistic, natural-looking and better-looking than before. Furthermore, there is a lot of difference between various quality grades.
If you have an old artificial grass installation that is either outdated or was rather cheap, then it may not look as good as the turf you could install now, even though it is still in good condition. As such, replacing this with new artificial grass could be an upgrade and give you a much better-looking lawn.
To find out more about synthetic grass installation, care, and replacement - as well as the types, styles and quality grades available - please feel free to have a good look around this site. We have aimed to put as much useful information online as possible to make it easy for you to find answers to all your questions at your own pace. Alternatively, if you get in touch, then one of our friendly team members will be happy to answer any additional questions you may have.