Why pool decks are a favorite target
The soil around a pool is almost always soft, well-drained backfill — the material a builder used to bring the grade up around the shell. That's easy digging, which makes the pool deck one of the most reliably burrowed spots on a Palm Beach County property. Iguanas tunnel in from the edge of the deck, from an adjacent planting bed, or from the base of a screen-cage footer.
On waterfront lots the pool deck is often just a few feet from a seawall or canal bank, so the animals get soft soil, water, and sun in one tight zone. That's why deck complaints and seawall complaints so often come from the same property.
What the damage looks like
The void an iguana leaves lets that section of deck settle, and because the pool structure and the surrounding deck settle at different rates, even a modest burrow can telegraph into visible cracking.
- A crack running across pavers or a poured deck, often near a burrow entrance
- A lip where one slab or paver has dropped below its neighbor
- Coping pulling away from the pool shell, opening a gap at the waterline
- Deck sections that rock or sound hollow underfoot
Screen enclosures make it worse
A screen cage footer is a shallow, continuous slab that iguanas love to den beside. When they hollow the soil under that footer, the cage can shift and the deck it sits on cracks along the same line. So a cage that starts snagging at the base is often a sign the deck under it is being undermined too.
Fixing it for good
Re-leveling or mud-jacking a settled deck is real money, and it's wasted if the iguanas remain to re-dig the base. The durable order of operations is to remove the resident animals, collapse and compact the burrows, then repair the deck. Do it the other way around and the fresh fill just becomes the next tunnel.
Common questions
Why do iguanas dig around my pool?
The backfilled soil around a pool deck is soft and easy to tunnel into, and on a waterfront lot it's often right next to a seawall or canal, so it checks every box an iguana looks for in a den site: soft ground, water, and sun.
Is a cracked pool deck always from iguanas?
No. Decks crack from age, normal settling, and tree roots too. What points to iguanas specifically is a burrow opening along the deck edge, hollow-sounding slabs, and iguanas basking on the deck near the crack.
Can I repair the deck without removing the iguanas?
You can, but it rarely lasts. The animals re-dig the loose fill a repair leaves behind and the deck settles again. Removing them and collapsing the burrows first is what makes the repair hold.
