Servicing Brisbane, Gold Coast, Sunshine Coast and Toowoomba for over 20 years. 

K&B Security Doors and Shutters (K&B) are the only manufacturers of Supa Shield Security Doors and Infinity Shutters. We also sell: diamond grille security doors, steel bars, screen doors, insect screen, aluminium louvre shutters and patio screened enclosures in Brisbane, Gold Coast, Sunshine Coast and Toowoomba.

Visit K&B's Photo Gallery for high-resolution pictures of our products. Our Facebook page also has photos of recently completed jobs.

For basic questions about product offerings, contact us by direct message on our company Facebook page. 

Don't take our word for it! Read what our customers have to say about our excellent service and high quality products - Testimonials


Quick Product Summaries


Infinity Shutters™ by K&B

K&Bs' Infinity Shutters™ are Australian Made and installed in 4 weeks. They have a 20 Year Warranty. Each shutter is custom-made to suit individual requirements. 

Supa Shield™ Security Doors

Our .316 marine grade woven mesh "Hook-Clamp" security system is designed for use on security doors, security screens, patio screened enclosures and bi-folds. Read more about our innovative and unique "Hook-Clamp" security system in detail here.

Aluminium Louvre Shutters

Our aluminium louvres shutters are ideal for interior and/or external shutter applications.

Diamond Grille Security Doors / Steel Bars

K&B's 7mm diamond grille security doors and steel products provide a strong visual and physical deterrent to would-be intruders. Each door has 3 hinges for added protection, is riveted to the aluminium frame and made with solid aluminium corner stakes. 

Insect Screen 

K&B has the expertise and experience to screen any area. Our screen doors and windows / insect screen are an inexpensive and unobtrusive solution to stop insects, dust and debris. There are a variety of mesh options available, including fine screen mosquito net.

Patio Screened Enclosures

Our patio screened enclosures can be fixed, bi-fold, stacking or retractable using insect screen, Supa Shield or 7mm diamond grille. We guarantee the ultimate in functionality, simultaneously providing protection from insects and the elements.