Definition of reconnaissance. : a preliminary survey to gain information; especially : an exploratory military survey of enemy territory.
While this will generally be more expensive than any other type of repair, it will give new life to your pool, and new liners have an average life of 10 to 15 years. Expect to pay between $3,000 and $5,000 to replace an in-ground swimming pool vinyl liner, but just $300 to replace the liner in an above-ground pool.
Inground Pool Liner Cost Conclusion. If you add a quality liner with a quality installation, you are looking at an average cost of roughly $4000.00 for small to medium size pools. If you need to upgrade your pool bottom, your total average moves up to 5400.00.