If necessary large sections of a pool can be ground out and replaced with new fiberglass and gelcoat. We use a chopper gun for this work to provide an even and complete covering of the defect. In boats holes and stress cracks can be ground out, replaced, and resealed. Rotted,weak transoms can be removed and rebuilt stonger and more durable. We live on a Sea Island so we are used to the ravages of salt water. If the floor of a boat is soft and spongy, we can fix it. If you can feel the floor give, it is not long for this side. We can even build and replace stringers that are beyond redemption.