If the repairs are small, you could choose to do it yourself. Read my guide on how to repair pool plaster for the step-by-step process and my guide on the pool plastering process if you need a big replastering job in your swimming pool.
An above-ground pool will cost you $10 to fix (DIY Kit) and $1,700 to completely replace. If the pool is not badly damaged, it will cost $20 to patch with a DIY kit and $5,000 to resurface. This will depend on what type of pool you have, which I explain below.
Pool resurfacing usually takes about 5-7 days to complete. The pool resurfacing process can be hindered by weather, however, and may take up to 14 days in certain cases.