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Longevity The average above ground pool will last 7-15 years before the structure gives out, although their liners will last 5-9 years before they have to be replaced. For an inground structure, the longevity really is contingent on the type of pool. For example, fiberglass should last well over 20 years. Vinyl pools should have a structure that lasts, but their liner needs to be replaced on average every 6-11 years. As for concrete, their structure should also last a long time, but keep in mind they need to be resurfaced every 9-13 years, which can get very, very expensive.
1 Installation labor to replace an above ground pool liner can cost $200-$800 or more, depending on local rates and the size and shape of the pool. 2  For example, Edwards Pools in Ohio estimates its labor charges for replacing an above ground pool liner vary from $400 for an 18' round pool to $700 for a 18'x33' oval. Total cost, labor and materials, for replacing an in-ground swimming pool liner is typically $2,000-$5,000. 2  A vinyl liner for an above ground pool can cost $150-$600, depending on the size and style of the swimming pool, plus any special colors, patterns or textures in the liner.