Repairing or replacing a concrete pool deck
If your deck is still level and the cracks are few and fine, sealing them is often all it needs, and that costs far less than a new pour. When sections have lifted, tilted or sunk, or the same cracks keep opening up, the trouble is usually in the ground underneath, and patching the top won't reach it. In that case we take the deck out and build it again on a base that's been dug out and packed properly.
What shapes the cost of a pool deck
The cost comes down to the deck's size, how much old concrete has to go, how much work the ground needs and the finish on top. When a budget gets tight, the base is often the first thing people want to trim, because nobody sees it once the concrete is down. I'd rather you choose a plainer finish and keep the base, because a fancy surface on poor ground cracks and settles just the same, and the base can't be redone later without starting over.