Make your security screens last twice as long in Wollongong: the maintenance schedule.
Rinse the salt off with fresh water monthly within about 1 km of the surf, quarterly a few kilometres back, and every 6 months west of the highway. Do that and a 316 marine grade door that would have been tired at year 12 is still sound at 20 to 25. The whole job is a garden hose, a soft brush, a bucket of warm water with a little mild detergent and roughly 5 minutes a door. Skipping it costs $900 to $1,400 a door to put right, and it is the single most common reason a coastal warranty claim gets knocked back.
Wollongong sits on a narrow coastal plain between the escarpment and the sea, which is a hard place to keep metal alive. Everything below is written for that. If you want the reasoning behind the schedule rather than the schedule itself, the maintenance guide and how long security doors last cover the chemistry and the service life. This page is the list you print and stick inside the laundry cupboard.
What is actually attacking your screens here
- Salt aerosol. Onshore winds carry chloride inland every day of the year. It settles on mesh, absorbs moisture out of the air overnight and sits there as a corrosive film. Bellambi, Towradgi, Corrimal Beach, North Wollongong and Windang get it hardest.
- Industrial fallout. Around Port Kembla, Warrawong, Cringila and Lake Heights, airborne iron-bearing particles settle on stainless mesh. Each speck rusts and bleeds an orange spot that looks like the mesh has failed when it is actually a contaminant sitting on top of it.
- Escarpment rain and shade. Figtree, Mount Kembla, Mount Ousley and Balgownie sit under the escarpment and cop heavy orographic rainfall. South and west walls stay damp for days, and mould and lichen take hold on frames and mesh.
- East coast lows and hail. One severe storm will bend a light flyscreen frame, load a screen with grit and drive salt spray into openings that never normally see it.
- UV. Fibreglass insect mesh on a north or west facing window goes brittle and chalky here in 5 to 8 years, faster than the marketing suggests.
- Sand and grit in tracks. Beach suburbs walk sand inside. It ends up in the bottom track of every sliding door and grinds the rollers flat.
- Iron-rich lawn fertiliser and grinding dust. A mower throwing fertiliser at a screen, or an angle grinder used anywhere nearby, embeds iron particles in stainless mesh. Those are the pinpoint rust spots people mistake for a product fault.
- Pool chlorine and bore water. Chlorinated splash and hard bore water both leave deposits that hold moisture against the metal.
There is one counter-intuitive rule worth remembering above all the others. Sheltered screens corrode first. A door under a deep verandah or eave never gets rinsed by rain, so salt accumulates for years. The exposed screen on the weather side, which looks like the one at risk, is being washed every time it rains. When you work down the schedule, start with the protected openings.
The printable maintenance schedule
Grouped by frequency, with the do-it-yourself items and the get-a-professional items marked. Tick as you go: the ticks are remembered in this browser, and the print button gives you a clean copy with the navigation stripped out.
After every storm or east coast low DIY
Monthly within 1 km of the surf, quarterly further back DIY
Every season, four times a year DIY
Once a year DIY
Once a year Get a professional
Every few years Get a professional
Never do these: they void warranties and wreck screens
Screens past the point where maintenance helps?
We measure across Wollongong, Corrimal, Fairy Meadow, Figtree, Unanderra and Dapto and spec the mesh to your street. Written quote within two business days.
What service life you should actually expect
| Component | Beachside, within about 1 km | A few km inland | West of the highway |
|---|---|---|---|
| 316 marine grade mesh, marine powder coated frame | 20 to 25 years | 25 years or more | 25 years or more |
| 304 stainless mesh | Tea staining from 5 to 8 years, tired by 10 | 15 to 20 years | 20 years |
| Perforated aluminium | Pitting can start within 5 years | 15 to 20 years | 20 years |
| Fibreglass insect mesh | 5 to 8 years | 6 to 10 years | 8 to 12 years |
| Sliding door rollers | 5 to 8 years | 7 to 10 years | 8 to 12 years |
| Locks, cylinders and closers | 6 to 10 years | 8 to 12 years | 10 to 15 years |
| Retractable screen mechanism | 7 to 10 years | 10 to 12 years | 12 to 15 years |
Every figure above assumes the rinse schedule is being followed. Without it, halve the coastal numbers. Product choice matters too: see stainless versus aluminium.
The cost of neglect, in real numbers
| What gets skipped | What it turns into | Cost to prevent | Cost of the failure |
|---|---|---|---|
| Rinsing salt off a coastal screen | Pitting in the mesh and corroded fixings | A hose, 5 minutes a door | $900 to $1,400 per door |
| Clearing sand out of a sliding track | Collapsed rollers, then a folded bottom track | Vacuum and wipe, 10 minutes | $150 to $280, or $220 to $400 for the track |
| Lubricating the lock cylinder | A seized lock and a snapped key | A dry lubricant, about $12 a tube | $140 to $300 |
| Tightening hinge screws | The door drops and the frame distorts | Free, a screwdriver once a season | $90 to $180 to realign, more if the frame is bent |
| Clearing blocked drainage holes | Water sits in the bottom rail and corrodes from inside | Free, a skewer once a storm | $900 to $1,400 per door |
| Replacing brittle fibreglass mesh on time | It tears in the first storm and the insects arrive | $35 to $70 planned | $90 to $160 in a hurry |
The whole prevention column costs under $20 a year and about two hours. The failure column on a screened house adds up to several thousand.
The honest limits of maintenance
Maintenance buys you years on a product that was right for your street. It cannot rescue a product that was wrong for it. Perforated aluminium fitted a few streets back from the surf will pit whatever you do, because the alloy and the environment are mismatched, and no rinse schedule changes that. If your screens are already pitted through, if the corners have opened, or if the lock block is torn, you are maintaining something that is finished. Our signs a door needs replacing page is the honest test.
The other limit is worth saying plainly because it costs us work. You do not need a maintenance contract for security screens. There is no annual service that we could sell you that beats a homeowner with a hose and this list. The only things genuinely worth paying for are the four yearly professional items above, and on most houses that is one visit every couple of years at $150 to $300, not a subscription. If someone quotes you a recurring screen maintenance plan for a suburban house, ask exactly which of the items on this page they are doing that you cannot.
If you are choosing new screens and you want the schedule to be short, buy for the environment the first time. The how to choose guide and the window security screens page explain what to ask for, and the rental page covers who does this maintenance in an investment property, because that question comes up constantly.
Maintenance questions we get asked
How often should security screens be rinsed in Wollongong?
What is tea staining and is it a fault?
How long should a security door last in the Illawarra?
What voids a security screen warranty?
Can I use a pressure washer on security screens?
Which maintenance jobs actually need a professional?
Book the yearly service items, or price a replacement
Tell us your suburb and what the schedule turned up, and we will book a measure and send a written, itemised quote within two business days.
Buying screens that will survive your street
The maintenance schedule gets much shorter when the mesh grade matches your distance from the surf. We spec it at the measure, in writing, on the quote.