A security door or gate adds a second, lockable barrier in front of your main door, so you can leave the glass open for air while keeping intruders out. In South Africa most homes have one on the front door and every sliding door onto the garden. Aluminium versions won't rust and are lighter to operate than steel. AluminiumDoor.co.za passes your free request to an independent security gate or door installer in your area, who quotes you directly. We don't make or fit gates ourselves.
Types of security door gate
The common security door gate styles are:
- Trellis or expandable gates: concertina-style gates that fold to the side when open, the classic security gate for a sliding door
- Fixed or hinged security gates: a framed gate with bars or a pattern, hinged like a door
- Retractable security door: slim vertical bars or panels that slide and stack away neatly, with a cleaner look than trellis
- Security screen doors: a framed door with heavy mesh that keeps out insects as well as intruders
Locks and fixing make the difference
A security gate is only as strong as its lock and fixings. Ask for a lock that cannot be reached through the bars, a lock box or shroud over the cylinder, and anti-lift features on sliding gates. Frames should be bolted into masonry, not just plugged, with tamper-proof fixings. On a large opening, top and bottom guides keep a trellis gate from being forced out of its track. A gate that locks from both sides is convenient but plan for quick exit in an emergency.
Aluminium versus steel
Steel is the traditional choice and is very strong, but it rusts if the galvanising or paint is damaged, especially near the sea. Aluminium security gates use thicker, reinforced sections to make up for the softer metal, never need painting and are easy to slide. For high-risk areas or large openings, many installers recommend steel or a heavy aluminium profile; for coastal homes, aluminium avoids the rust streaks that steel gates leave on walls and paving.
Security door prices: what drives the cost
We don't publish security door prices. Your quote will depend on the opening width and height, the gate style (retractable designs usually cost more than standard trellis), the material and profile weight, the lock, the finish colour and how difficult the fixing surfaces are. Several gates for one house are often quoted together.
Comparing quotes for aluminium security doors
The lowest price is not always the best value. When your quote arrives, check:
- Measure and system: whether the price is based on a site measure, and which aluminium profile range is specified for the size of the opening.
- Glass and finish: safety glass type and thickness, and powder coating or anodising, with a marine-grade finish near the sea.
- Installation: removal of old frames, fixing, levelling, sealing and making good, and who handles plaster and paint.
- Guarantee and timing: what the guarantee covers, the lead time for manufacture and the date for fitting.
What to include in your request
- Width and height of each opening that needs a gate
- Which door it protects: front door, sliding door or stacking door
- Preferred style: trellis, fixed, retractable or mesh
- Colour, number of gates and the wall type for fixing
Frequently asked questions
What is the difference between a trellis gate and a retractable security door?
Can a security gate be fitted to a large stacking or sliding door?
Are aluminium security gates strong enough?
Do you install security gates?
Aluminium Security Doors by province
- Aluminium Security Doors Gauteng
- Aluminium Security Doors Western Cape
- Aluminium Security Doors KwaZulu-Natal
- Aluminium Security Doors Eastern Cape
- Aluminium Security Doors Free State
- Aluminium Security Doors Limpopo
- Aluminium Security Doors Mpumalanga
- Aluminium Security Doors North West
- Aluminium Security Doors Northern Cape
Aluminium Security Doors by city
- Aluminium Security Doors in Johannesburg
- Aluminium Security Doors in Pretoria
- Aluminium Security Doors in Centurion
- Aluminium Security Doors in Sandton
- Aluminium Security Doors in Midrand
- Aluminium Security Doors in Randburg
- Aluminium Security Doors in Roodepoort
- Aluminium Security Doors in Alberton
- Aluminium Security Doors in Boksburg
- Aluminium Security Doors in Kempton Park
- Aluminium Security Doors in Benoni
- Aluminium Security Doors in Germiston
- Aluminium Security Doors in Krugersdorp
- Aluminium Security Doors in Vereeniging
- Aluminium Security Doors in Vanderbijlpark
- Aluminium Security Doors in Cape Town
- Aluminium Security Doors in Bellville
- Aluminium Security Doors in Kuils River
- Aluminium Security Doors in Somerset West
- Aluminium Security Doors in Paarl
- Aluminium Security Doors in Stellenbosch
- Aluminium Security Doors in George
- Aluminium Security Doors in Mossel Bay
- Aluminium Security Doors in Worcester
- Aluminium Security Doors in Durban
- Aluminium Security Doors in Pinetown
- Aluminium Security Doors in Pietermaritzburg
- Aluminium Security Doors in Richards Bay
- Aluminium Security Doors in Ballito
- Aluminium Security Doors in Margate
- Aluminium Security Doors in Newcastle
- Aluminium Security Doors in Port Elizabeth (Gqeberha)
- Aluminium Security Doors in East London
- Aluminium Security Doors in Bloemfontein
- Aluminium Security Doors in Welkom
- Aluminium Security Doors in Polokwane
- Aluminium Security Doors in Tzaneen
- Aluminium Security Doors in Nelspruit (Mbombela)
- Aluminium Security Doors in Witbank (eMalahleni)
- Aluminium Security Doors in Middelburg
- Aluminium Security Doors in Secunda
- Aluminium Security Doors in Rustenburg
- Aluminium Security Doors in Klerksdorp
- Aluminium Security Doors in Potchefstroom
- Aluminium Security Doors in Kimberley
- Aluminium Security Doors in Upington
Related doors and services
| Mark | Elevation | Type | Notes | |
|---|---|---|---|---|
| D02 | Aluminium Sliding Doors | Configurations: 2-panel and 3-panel, one or two sliding leaves | Get a quote | |
| D01 | Aluminium Front Doors | Designs: solid panel, half glass, full glass or with sidelights | Get a quote | |
| D03 | Aluminium Stacking Doors | Panels: 3 to 6, stacking behind a fixed panel or opening both ways | Get a quote | |
| H03 | Aluminium Door Handles and Locks | Lever, pull and flush handles | Get a quote |
