Security doors & screens
Invisi-Gard security doors
Invisi-Gard security doors and window screens: 316 marine-grade stainless steel mesh in an aluminium frame, so you keep the view and the breeze.
- From
- $900 installed*
- Mesh
- 316 marine-grade stainless steel, 900 MPa wire
- Frame
- Extruded aluminium, powder coated
- Locking
- Three-point lock on doors
- Bushfire
- BAL-LOW to BAL-40
* Standard hinged or sliding door at 2100×820.
Overview
Invisi-Gard replaces the bars of a traditional security door with a fine, woven stainless steel mesh across the whole panel. From inside, the view stays clear and air moves freely.
The mesh is woven from high-tensile (900 MPa) 316 marine-grade stainless steel wire, the grade chosen for salty coastal air, then pre-treated and powder coated.
There are no screws through the mesh. Invisi-Gard's patented pressure retention and isolation method clamps it into a heavy-duty extruded aluminium frame and keeps the steel and aluminium apart, which avoids the corrosion that starts where different metals touch.
Frames are powder coated, with hundreds of colours to choose from, so doors and screens can match your window frames or stand out against them.
Tested against Australian Standards
Alspec puts Invisi-Gard through independent testing. In the dynamic impact test it absorbs ten times the energy the Australian Standard requires.
- Dynamic impact, jemmy (prising) and knife shear tests
- Bushfire rated from BAL-LOW up to BAL-40
- Fire attenuation
- Fall prevention for openable windows
- Corrosion testing
Doors
Hinged and sliding Invisi-Gard doors are fitted with three-point locks.
- Hinged doors
- French doors (pairs)
- Sliding doors
Window screens
- Fixed screens
- Louvre window screens
- Hinged screens
- Emergency escape screens
Looking after it
Wash the screen down with a soft brush, warm water and a mild detergent, then rinse with fresh water. Avoid strong detergents and abrasive cleaners. Homes near the coast need it more often.
Specifications and test results as published by the manufacturer, Alspec.
Project gallery
We have installed thousands of stainless steel security doors throughout Perth. Here are a few.
Popular colours
Choose from a wide range of durable powder-coated colours and anodised finishes, to match your window frames or stand out against them. These are some of the favourites.
- Anodic Dark Grey Matt
- Anodic Natural Matt
- AZ Custom Black
- Deep Ocean Matt
- Hammersley Brown Satin
- Monument Matt
- Paperbark Matt
- Pearl White Gloss
- Primrose Gloss
- Stone Beige Matt
- Vivica Ultra Silver Gloss
- White Birch Gloss
- Woodland Grey Matt
- Western Red Cedar
- A.P.O Grey Satin
- Dune Satin
- Ultra Silver Gloss
- Surfmist Matt
- Clear Anodised
- Bronze Anodised
Colours on screen are a guide. Ask us to see a sample before you choose.
Why Knight
Why choose Knight?
As an authorised installer of Invisi-Gard, we deliver premium protection built for tough conditions, with clear views and natural airflow.
4.9 stars on Google
Rated by 397 customers.
25+ years
Hands-on experience supplying and installing across Perth, with a name for reliable service and precise workmanship.
Fast turnaround
Don't wait months to secure your home.
Made for your home
Every job starts with a free on-site quote and is made to measure.
Google reviews
Rated 4.9 from 397 reviews
★★★★★
Fantastic job by Knights Blinds & Security. The team turned up within a day of me requesting a quote which was excellent. The double sliding screen door looks great and slides perfectly. The four window screens all fit perfectly and look like they were original, they match the window colour perfectly. The installation team took away the old screens and left no trace. Delivery was approx 3 weeks after order which was reasonable.
Lance Keys · April 2026, on Google ★★★★★
High quality workmanship and great overall experience. This is the 2nd time I have gone to Knight Blinds and Security for security doors and windows, both have been excellent experiences.
David · April 2026, on Google ★★★★★
Very prompt service. Did what they promised. Very happy with products we received. Installer Allan was tidy and friendly. Cleaned up after himself.
john bernard · March 2026, on Google ★★★★★
Very happy with everything, i have recommended Knight Blinds & Security to others as the whole process was professional and decent prices. Thank you very much Manish
Jessica byrne · March 2026, on Google ★★★★★
Very happy overall. Price is good and product is good quality. I was having issue with the property and Knight security was very helpful. They hold back installation for a few months. Very much appreciate your help.
Nanz · March 2026, on Google ★★★★★
I am very satisfied with the service and security door was very good. This company very profesional.
Fang Yin · February 2026, on Google
Other security doors & screens
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Alu-Gard security doors and screens use a 1.6 mm perforated aluminium sheet: strong, corrosion-resistant and clear to see through.Vision-Gard
Vision-Gard security doors and screens use a perforated aluminium privacy mesh: you can see out, but it is hard to see in.Diamond Grille
Diamond grille security doors and screens: the traditional Australian design, with a 7 mm aluminium grille and a choice of mesh behind it.Colonial
Colonial security doors: cast aluminium doors with decorative patterns for period and character homes, with matching sidelights.
Free quote
Ready for a quote?
Tell us about your windows and doors, and add a photo if you have one. We will be in touch to arrange a time to measure.