Welded Diamond Grille security doors and screens

The classic security door look, built properly. Prowler Proof's diamond grille is welded straight to the frame instead of screwed or riveted.

What Diamond Grille is

Diamond Grille is the traditional security screen pattern: an aluminium grille formed into diamonds. Prowler Proof's version (sold as Diamond Design) welds the grille directly to a high-quality aluminium frame, so there are no screws or rivets at the joins to work loose over time.

It's the most affordable range we install, and it's still a tested security product audited against Australian Standards.

Where Diamond Grille works best

  • Laundry, garage and side doors that need to be secure but don't need to be a feature.
  • Older homes, where the diamond pattern suits the style of the house.
  • Rentals and investment properties, where tested security matters and the budget is set.

Worth knowing before you choose

The diamond pattern is more visible than stainless mesh or perforated aluminium, so the view out is busier. Insects are covered: every Diamond Grille door and screen comes with fibreglass insect mesh behind the grille. If you want a cleaner look, compare Protec.

Doors and windows

Diamond Grille is made as hinged doors, sliding doors and window screens, in a wide range of powder-coat colours.

Security doors come with Lockwood locks: the 8654 on hinged doors and the 8653 on sliding doors, both with Lockwood's two-stage DualSelect key. 3-point locking is standard on every door, and doors ordered together can be keyed alike.

Covered by Prowler Proof's 10-year full replacement warranty against defects in workmanship or materials.

Questions we get asked

Is diamond grille actually secure?

A welded, tested diamond grille door is a genuine security door. What matters is the whole product: the grille, the frame, how they're joined, the lock and the install. That's why we only fit Prowler Proof's welded version.

Is diamond grille cheaper than Protec or ForceField?

Generally yes, it's the most affordable range we install. Your quote will show the options side by side if you want to compare.

Can you replace my old diamond grille door?

Yes. Many of our jobs in established suburbs are swapping tired riveted doors for welded ones, or upgrading to Protec or ForceField.

Get it measured properly, then decide.

Chris comes out, measures every opening, talks you through the options and emails your quote the same day. The measure and quote cost nothing.

Call 07 5609 2880Get a quote