If your pool service technician used high quality materials and installed the right methods, you can expect a pool surface that lasts for many years.
The plaster must be in good condition before you can repaint a swimming pool. The plaster surface should be prepared with a wash with muriatic acid, followed by a rinse using TSP (trisodiumphosphate) and warm water. Use TSP and muriatic acid with extreme caution. Always follow the manufacturer's instructions. The old paint must be compatible. Rubberized latex paint will not adhere to epoxy, and vice versa.
With a high-quality fiberglass pool, you won’t have to resurface very often. In fact, with proper care and maintenance, a fiberglass pool can last a lifetime without the need for resurfacing. If you have to resurface a fiberglass setup, it costs an average of $7,500 for parts and labor. There are several popular finishes that you commonly see in fiberglass pools, which will vary your cost dramatically.