Fiberglass swimming pools have gained popularity over the years not just because of their elegance but also because of their quality. Unlike other types of swimming pools, fiberglass pools tend to have longer lives. They are also easy to clean especially since it has a very smooth surface that makes hard for algae to cling to. However, they may still require more maintenance over time, and just like other types material, they can also be subject to wear and tear.


A fiberglass finish has a tendency to crack when there is a sudden change in temperature. When this happens, a resurfacing may be needed. It is imperative that you begin repair as soon as you notice a crack since water can seep in through the glass and produce even more damage. There are patch kits available online or on your local pool or home improvement store so make sure you get one that’s especially designed for fiberglass pools. Before attempting to make any repairs, remember that any damage beyond your ability to fix should be left to a professional. Otherwise, here are a few simple steps on how you can fix a minor problem with your fiberglass pool at home.

Step 1. Start by evaluating the kind of problem you’re dealing with. Normally, any damage in the cosmetics of the fiberglass could be fixed with no sweat. If the damage is superficial, repair can be done simply by painting the area to restore the color. However, do not expect that you can match the new color with the original one perfectly. On the other hand, if you’re dealing with a crack on the surface of the glass, it would take you more time and energy.

Step 2. Drain the pool just enough to expose the crack. If the crack appears at the bottom of the wall, you will have to drain the pool completely. Allow the damaged area to dry before sanding it. When you’r done sanding the area, get rid of loose debris and other small particles.

Step 3. Using a diamond cutting tool, cut out the portion with the crack on it and fill the hole with hydraulic cement. Apply the bond coat over the area and allow it to dry.

Step 4. When the bond coat has dried apply polyester putty on the area using a putty knife. Allow it to dry as well and sand it until it is smooth.

Step 5. Apply recommended gel coat using a paint roller. Make sure to seal the area properly and to get rid of any air bubble formation completely.

Step 6. Smoothen the fiberglass by sanding the area and eliminate any residue using a cloth.

Step 7. To finish, you might want to use spray paint as a final coating for the patch. Hold the can a good six to eight inches from the patch and spray in a sweeping motion, making sure the color matches well with the wall. Leave the patch overnight to dry completely. The patch should be completely dry after 24 hours, so you can fill the pool with water once again and enjoy a good swim.