If you live in Cape Coral or anywhere in Southwest Florida, you probably spend a lot of time on your lanai. It's where you eat breakfast, watch the sunset, host friends, and keep an eye on the pool. It's basically an extra room, except it's outside and exposed to everything Florida throws at it.
And Florida throws a lot.
Humidity, rain, pollen, dust, mold spores, bird droppings, love bugs, lizard activity — all of it collects on your pool cage screens, frames, hardware, and lanai surfaces. What starts as a subtle haze on the screens turns into full-on green algae in a matter of weeks during the wet season. Before you know it, you're sitting on your lanai looking through a film of grime instead of enjoying the view.
Why it happens so fast here
I've worked outside in Cape Coral long enough to understand the cycle. From about May through October, the combination of daily rain, high humidity, and warm temps creates perfect conditions for algae and mildew growth. Your pool cage is basically a greenhouse frame — warm, wet, and loaded with organic material settling on every surface.
Screen panels trap moisture between the mesh fibers. Horizontal frame members hold standing water after every rain. Hardware and fasteners stay damp for hours. All of that accelerates biological growth to a pace you don't see in drier climates.
Coastal and waterfront properties have it even worse. Salt spray adds another layer of corrosion risk — aluminum frames pit and stain faster, and screens degrade quicker if salt isn't removed regularly.
What professional pool cage cleaning actually involves
This isn't a garden hose job. Professional pool cage and lanai cleaning uses low-pressure soft washing — typically under 500 PSI — combined with professional-grade cleaning solutions that kill algae and mildew at the root without damaging screens or hardware.
Here's the basic process we follow:
First, we pre-treat the entire enclosure with a biodegradable cleaning solution. This breaks down the organic growth and loosens dirt from the screen mesh, frame channels, and fastener points.
Then we rinse everything at low pressure — screen by screen, frame section by frame section. We work from the top down so dirty runoff doesn't re-soil clean panels below. We pay extra attention to horizontal members where buildup is thickest, and to the base rails that collect debris and standing water.
We also clean the lanai deck surface (concrete, pavers, or whatever you've got), the ceiling screens, and any attached structures like outdoor kitchen counters or bar areas.
The whole thing usually takes 2–4 hours depending on the size of the enclosure.
How often should you have it done?
For most Cape Coral and Fort Myers homes, every 6–12 months keeps things looking good. If your property is waterfront, on a canal, or surrounded by heavy tree cover, every 4–6 months is more realistic.
The easiest way to tell: walk outside and look at your screens from the inside. If you can see a green or gray film — or if sunlight looks dim coming through — it's time. Another tell is looking at the bottom rail of your pool cage. If there's a dark line of buildup along the base, that growth has been spreading for a while.
Can you DIY it?
You can, and a lot of people do with a garden hose or a light pressure washer. The issue is thoroughness and risk. A garden hose won't kill the algae — it'll knock some loose, but it grows back within weeks because the root system is still alive in the screen mesh. A pressure washer that's too strong will blow right through your screens, and replacing even a few panels costs more than professional cleaning.
The other issue is height. Most pool cages in Cape Coral are 12–20 feet tall at the peak. Getting up there safely to clean the top panels and ceiling screens requires the right equipment and the right technique.
What to look for in a cleaning company
Ask whether they use soft washing or pressure washing on screens. If they say pressure washing, move on — high pressure will damage your screens. Ask about their cleaning solutions — they should be using professional-grade, biodegradable products that won't harm your pool water, landscaping, or pets.
Make sure they're insured. Pool cage work involves ladders, wet surfaces, and working at height. If someone gets hurt on your property and they're not insured, that's on you.
And look at their results. Before-and-after photos tell you everything you need to know about whether a company does thorough work or just rinses the easy-to-reach panels and calls it done.
Your lanai is where you live half the year in Southwest Florida. Keeping it clean isn't just about aesthetics — it's about protecting the screens, frames, and hardware that make the space usable. A little maintenance goes a long way.