Rust stains on pool cage screws and anchors
Orange or brown streaks below a screw or anchor point are corrosion from the steel fastener itself, not the aluminum frame — self-tapping steel screws lose their zinc coating over decades in Florida humidity, and most Longwood cages are old enough that this has already started. It’s cosmetic on its own; it’s structural once the screw itself is weakened.
The stain is the fastener, not the frame
Pool cage frames are aluminum, which does not rust. The screws holding the frame together are usually zinc-plated steel, and the zinc coating wears through over decades in Florida humidity — once it does, the steel underneath corrodes and the rust bleeds down the aluminum, leaving the orange or brown streak below each fastener. The streak itself is cosmetic. What it tells you is that the fastener has started to fail underneath it.
Why Longwood shows this more than a newer subdivision
The research on this city’s housing stock is specific: Longwood’s self-tapping screws “have been sitting in Florida humidity for four decades,” and Wekiva Hunt Club specifically shows “corroded self-tapping screws and worn spline grooves” as the norm at its build age (1974–1984, median year built 1977). Sweetwater Oaks (mostly 1971–1987) and The Springs (developed in the 1970s) are on the same clock. A cage built in 2005 has not had time to get here yet; most Longwood cages have. More on Wekiva Hunt Club specifically →
Cosmetic or structural — how to tell
| Sign | Usually means |
|---|---|
| A stain only; the screw is still tight and turns cleanly | Cosmetic. Worth noting, not urgent. |
| Visible pitting or thinning on the screw head | Early structural. Replace before it shears. |
| The screw head shears off when touched | Structural. That fastener has already failed. |
| The panel wobbles at the attachment point | Structural. The connection itself is compromised. |
No published source prices fastener replacement as its own separate line item — it is usually part of why a panel or full-cage job was booked in the first place rather than a standalone charge. Where a fastener failure has taken the upright itself with it, that is priced as structural work:
These are third-party market estimates, not our prices and not a quote. They are collected from published Florida and Orlando-area cost guides — two of the three sources are themselves screen contractors, and none of them is Longwood-specific. Longwood Rescreening's own per-panel and full-cage pricing is and will replace these ranges before launch.
| Job | Published range | Source |
|---|---|---|
| Corroded upright (post) replacement | $300–$700 per post | A Screen Repair, Orlando, 2026 |
| Beam replacement | $400–$1,200 per beam | A Screen Repair, Orlando, 2026 |
Questions people actually type
These are verbatim Google and DuckDuckGo autocomplete strings, kept in the wording people type rather than tidied up into marketing questions.
Searched asrust stains on pool cage screws / anchors
Pool cage frames are aluminum and do not rust; the streak comes from the zinc-plated steel screws holding the frame together, once their coating wears through after decades in Florida humidity. If the screw is still tight and turns cleanly, the stain is cosmetic. If the head shears off when touched, shows visible pitting, or the panel wobbles at that point, the fastener has structurally failed and needs replacing. Most Longwood cages are old enough — 40 to 55 years — that this is the norm rather than the exception.
Related
Not sure if it's cosmetic
Send a photo of the stain and the screw head if you can. That alone often answers it before anyone drives out.