Usually the lifespan of carpets is around 5years for base range and 15 years for mid and higher ranges depending on the fiber. However, this also depends on the amount of foot-traffic it borne over the years. Usually they are good to go until they tear and become a slip hazard or the fibres get worn out. If you experience at least one of the following you should consider replacing your carpet: Signs that my carpet needs to be replaced: A tear or a slip hazard, Fibers are worn out in high traffic areas which, leads to thin patches in some places, Subjected to water damage, You are experiencing, asthma/allergies, Stains or odour even after steam cleaning, Dampness over long time due to vomit,, urine etc can create a sanitation hazard, Growth of mould, Carpet no longer feels soft under feet, Wrinkles or bumps in carpet