Expandable Security Gates for Homes and Businesses Across Gauteng
Sequ-Door’s security gates are engineered for South African conditions – custom-manufactured in steel, fitted with SLAM-lock technology as standard, and professionally installed to give you reliable, long-lasting protection.
Safety Gates for Sale – SLAM-Lock Protection, Custom-Fit to Your Opening
Sequ-Door is a trusted supplier and installer of high-quality expandable security gates across Gauteng. Our full trellis-style range covers doors, sliding doors, and windows – giving you a cohesive, consistent level of protection throughout your home or business. Every gate and security window slider in the range comes standard with SLAM-lock technology: the gate locks automatically on impact, creating an immediate security barrier without fumbling for a key.
With no plastic working components, double upright square tubing, additional scissor reinforcements, and four-sided securing on every installation, our security gates are built to eliminate weak spots and deliver years of dependable performance. Four locking configurations are available – Face-On, Side Lock, Off-Centre Lock, and Centre Lock – so the right gate type for your specific opening is always within reach. Standard powder-coated colours include White, Bronze, Charcoal, Black, and Silver, with a full range of non-standard and custom colours available on request.
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Product Range
Two products, four locking configurations, and one professional installation team – covering every door and window opening in your home or business.
Expandable Security Gates
SLAM-lock trellis gates available in Face-On, Side Lock, Off-Centre, and Centre Lock configurations for doors and sliding doors.
Security Window Slider
A compact, custom-fit sliding security gate for window openings – opens fully for ventilation, slams shut and locks for protection.
Why Choose Sequ-Door’s Security Gates
SLAM-Lock on Every Gate
Every expandable security gate and window slider locks automatically on impact – no fumbling required in an emergency.
No Plastic Working Components
All-steel construction throughout – no plastic parts to fail at the moment you need the gate most.
Security Gates for Sale, Custom-Fit to Your Opening
Manufactured to your exact door or window dimensions, not adapted from a standard size.
Four Locking Configurations
Face-On, Side Lock, Off-Centre, and Centre Lock options to suit any reveal space or opening layout.
Retractable Design, Neat Appearance
Folds away cleanly when open to reveal more of your daylight opening and keep your space looking great.
Installed and Warranted Across Gauteng
Professional installation with a 3-year warranty on outside installations and 5-year on inside installations.
Our Process
From your first enquiry to the final fitting, we keep things simple and stress-free.
Request Your
Free Quote
Tell us what you need and we’ll come back to you promptly with clear, honest pricing and no pressure.
We Visit for On-Site
Measurement
We measure your opening precisely so every gate is manufactured to fit correctly – no guesswork, no surprises on the day.
Professional Installation & Support
Experienced installers fit your gate securely and correctly, and we’re here after the installation if you ever need us.
What Makes Our Sales & Installation Process Unique
At Sequ-Door, we don’t just supply aluminium doors – our sales and installation teams deliver a reliable experience from consultation to completion.
Expert Advice
Every step prioritises your satisfaction, from consultation to handover.
- We assess your opening, reveal space, and usage to recommend the right gate type and locking configuration for your needs.
- Our team explains the four locking configurations clearly so you can make a confident, informed choice.
- No pressure, no upselling – just practical advice tailored to your home or business.
Precision from Start to Finish
Accurate measurements and careful planning mean your gate fits and functions correctly from day one.
- Every gate is manufactured to the exact dimensions measured on-site – never estimated.
- Tracks are fitted at the top and bottom of the frame and secured on all four sides for maximum rigidity.
- Locking configuration, colour, and application are all confirmed before manufacture begins.
Guaranteed Quality
Every gate is backed by a clear, structured warranty covering what matters most.
- 3-year warranty on outside installations; 5-year on inside installations – covering major rust and powder coating peeling.
- 12-month warranty on hardware (including locks) and workmanship on every installation.
- All defects verified against our “Security – using and maintaining” care guidelines before any claim is processed.
Professional Installation
Experienced installers ensure a secure, neat fit on every job.
- Our team manages everything from delivery and track fitting to final testing of the SLAM-lock mechanism.
- We work efficiently and leave your space as tidy as we found it.
- After-sales support is available if anything needs attention once your gates are
Certifications
Sequ-Door is accredited by the two bodies that govern aluminium and glazing manufacturing standards in South Africa namely, AAAMSA and SAGGA. For a full discussion of what each accreditation means, see our Certifications page.
AAAMSA
Association of Architectural Aluminium Manufacturers of South Africa. Membership number A5216. All our aluminium doors and windows are manufactured to AAAMSA standards. AAAMSA Certificates are available on request.
SAGGA
South African Glass and Glazing Association. Our glazing follows SAGGA-accredited procedures. Membership number A5216. SAGGA Glazing Certificates are available on request.
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What Our Customers Say
