Tested for Storms. Trusted for Life.
Sliding Doors and Storms — A Common Perth Concern
Ever had to mop your living room after a storm? You’re not alone.
In Western Australia, sideways rain, strong gusts, and sudden downpours can push standard sliding doors beyond their limits.
Cheap tracks, weak seals, and poor drainage quickly lead to:
- Leaks and puddles
- Warped flooring
- Costly water damage
For coastal and hilltop homes, the risk is even higher.
That’s why at Penot Double Glazing, our sliding doors are engineered for Perth’s toughest conditions, keeping storms out and comfort in.
Why Waterproofing Matters More in WA Than You Think
WA’s weather is unlike anywhere else in Australia. While the state is famous for sunshine, when storms arrive, they arrive hard.
Here’s why sliding doors in Perth need more protection:
- Short, sharp downpours → Buckets of rain in minutes, not hours
- Wind-driven rain → Sideways gusts that force water into weak seals
- Salt + corrosion → Coastal air accelerates rust and frame fatigue
- Sudden shifts → Hot mornings flipping to stormy afternoons, stressing frames
Without strong drainage and sealing, doors fail, leaving water, mould, and repair bills behind.
The Common Failures We See in Perth Homes
After years of fixing failed systems, we see the same issues again and again:
- Brush seals that collapse in storms
- Blocked drainage holes causing track flooding
- Corroded frames in Fremantle, Cottesloe, and other coastal areas
- Swollen or sticking tracks after rain
Each failure starts small… until the first winter storm reveals the problem.
Weatherproof Seals — Built to AS2047 Standards
Most sliding doors rely on brush seals or silicone. They might hold up in light rain, but not in Perth’s sideways storms.
Penot doors are different:
- Multi-layer compression seals at all junctions
- Tested to AS2047 water penetration standards (the Australian benchmark)
- Installed to strict tolerances for perfect compression
This means your home stays dry — even when 90km/h winds drive rain directly against your glass.
Triple Defence Drainage — The Fail-Safe System
Water will always hit your doors. The difference is whether it gets inside.
Our sliding doors feature a three-stage drainage design proven in commercial glazing:
- Sloped sills → Guides water away
- Raised tracks → Reduces pooling and splashback
- Pressure-equalised chambers → Pushes water outside before it builds up
Even with flush indoor–outdoor thresholds, Penot integrates:
- Hidden drainage exits
- Capillary breaks to stop creeping water
That way, your living room stays dry, even in torrential downpours.
Thermally Broken Aluminium Frames — Built for WA

Strong seals and drainage are nothing without durable frames. That’s why Penot uses thermally broken aluminium:
- No swelling, warping, or rust
- Resistant to coastal corrosion
- Marine-grade powder coating for extra protection
- Stops condensation and improves insulation
From Cottesloe’s salty air to Kalamunda’s storms, these frames are built to last.
Lifestyle Benefits Beyond Storm Protection
Yes, storm resistance matters. But Penot doors deliver much more:
- Cooler in summer → Blocks draughts, lowers AC use
- Warmer in winter → No more freezing floorboards
- Quieter indoors → Reduces wind, traffic, and ocean noise
- Cleaner living → Less dust and sand build-up in tracks
Comfort all year round, not just when the storms roll in.
Tested in Real WA Storms — Case Studies
Penot sliding doors don’t just perform in theory, they’ve proven themselves in Perth homes:
- City Beach (2023 winter storm) → Withstood 104km/h gusts. Neighbours flooded; our install stayed dry.
- Applecross riverside build → Open-plan living with zero leaks despite salt spray and crosswinds.
- Gooseberry Hill → Stayed watertight during a once-in-a-decade downpour in an exposed hillside property.
- Fremantle coastal home → Corroded standard frames replaced with thermally broken aluminium — no failures since.
Cost of Storm-Rated Sliding Doors in Perth
Pricing depends on size, finish, and glass, but here are typical ranges:
- Multi-track sliding doors → $7,000 – $14,000+
- Bi-fold doors → $6,000 – $15,000+
- Lift-slide premium systems → $8,000 – $20,000+
- Large-format storm-rated doors (4–6m spans) → $12,000 – $25,000+
Yes, they’re an investment — but consider the value:
- Avoided water damage & insurance claims
- Energy savings from better insulation
- Higher resale value in Perth’s premium suburbs
What to Ask Before Buying Sliding Doors in Perth
Before signing off on a sliding door system, ask:
- Has it been tested to AS2047?
- Is drainage passive or active? (Penot uses passive fail-safe systems)
- Has it been tested in Perth conditions?
- Are the frames thermally broken?
If the supplier can’t answer confidently, walk away.
Conclusion: Storm Outside. Comfort Inside.
In Perth, weather isn’t just a backdrop, it’s a design challenge.
At Penot Double Glazing, we install storm-rated sliding doors engineered for WA homes:
- Multi-seal compression
- Triple-defence drainage
- Thermally broken aluminium frames
- AS2047-certified water resistance
From Scarborough to Subiaco, Fremantle to the Perth Hills, our doors are proven to perform.
Don’t wait until next winter to find the leaks.
Book your free consultation today and see why Penot’s sliding doors are trusted across WA.