Electric fence installations, repairs and compliance inspections for homes, complexes and businesses.
A fence designed for your boundary.
Fault finding, repairs and upgrades.
Compliance inspections and certificate enquiries.
Electric fencing is part
of our foundation.
Stemar began in 1989 as an electric fence installation business. That experience continues to shape how we assess boundaries, specify equipment and work on existing fences.
We consider the wall or fence structure, gates, changes in level, vegetation and access before recommending the installation or repair scope.
Wall-top, piggyback and freestanding systems suit different boundary structures. We assess the site before recommending the arrangement.
Wall top electric fencing protects the area above boundary walls and gates preventing intruders from simply hopping over. To ensure the effectiveness of the fence, a minimum of 8 strands of wire providing a barrier of 900mm in height is recommended. Fence poles should not be spaced more than 3m apart.
Piggy back electric fencing is a multi-strand electric fence which is attached to an existing vulnerable structure such as a precast wall, mesh or steel palisade fence. The fence wires are usually installed from ground level to above the structures height preventing intruders from going through or hopping over the wall / fence.
A free-standing electric fence is an independent fencing system designed to provide security or contain animals without the need for additional support structures. Most common applications include:
Repeated alarm activations, low-voltage indications or damaged wires need proper diagnosis. We assess the energiser, fence wiring, insulators, connections, gate links, earthing and backup power as applicable.
Repairs may include replacing damaged components, correcting connections or upgrading worn sections. We discuss the required work before proceeding.
• Repeated fence alarms
• Low voltage or energiser warnings
• Broken wires or damaged brackets
• Vegetation contacting the fence
• Battery or power problems
• Damage after building work or storms
An electric fence system certificate is separate from your property’s electrical Certificate of Compliance. It must be issued by a registered person after the required inspection and tests.
Selling a property, adding to a fence or replacing equipment? Tell us what has changed so we can discuss the inspection and certification requirements. Any defects preventing certification must be resolved first.
Stemar Security Systems are fully registered with the Department of Labour and in good standing with SAEFIA (South African Electric Fence Installers Association).
Your property suburb
So we can confirm service availability.
Your existing certificate
If available, together with details of subsequent changes.
The reason for the inspection
A property sale, new fence, alteration or existing-system concern.
Nemtek is our preferred electric fencing brand, but we install, service and maintain all brands. For new installations, repairs and upgrades, we assess your existing equipment, fence layout, zones, monitoring needs and power requirements to recommend a suitable solution.
Compatible fence alarm outputs can be connected to your alarm or monitoring system. Let us know your existing alarm and armed response provider so we can confirm the signalling requirements.
The video below introduces Nemtek’s range of energisers and electric fencing accessories.
Corners, gates, changes in height and vulnerable sections all influence the installation. A well-planned fence should also allow practical maintenance access.
We assess the existing structure and discuss suitable repairs or preparation before installation. Warning signage and safe access form part of the planning.
Our electric fence service area is approximately 25 km from our Randpark Ridge office. Send your suburb so we can confirm coverage and any travel arrangements.
Enquiries from Randburg, Sandton, Roodepoort, Midrand and surrounding Johannesburg areas are assessed by location.
1. Tell us what you need.
New fence, repair, upgrade or compliance inspection.
2. Assess the site.
Discuss the boundary, condition and suitable next step.
3. Agree the work.
Review the quotation and scope before work begins.
Yes. Share the energiser brand and model, symptoms and any known damage. We will assess the fence and discuss repair options and parts availability.
Possible causes include vegetation, damaged insulators, loose connections, wire faults or power problems. A site assessment helps identify the cause rather than treating the symptom.
No. The electric fence system certificate is separate from the electrical CoC. Ask us about the inspection required for your fence and any work needed before certification.
A compatible energiser and interface can support signalling to a suitable alarm or monitoring system. We check the equipment and monitoring requirements before recommending a connection.
Yes. Energisers include a rechargeable 7Ah battery for backup during power outages. Backup time depends on battery condition, system load and the duration of the outage. Separate battery backup solutions are available for extended power outages.
No, a site inspection is required for an accurate quotation. Wall steps, angles, corners and gates affect the fence layout and the number of poles needed. We also need to identify a suitable location for the energiser and assess the cabling and earthing requirements between the energiser and the fence.
Electric fencing is a highly effective deterrent against potential intruders and unauthorised access. It works by delivering a non-lethal but powerful electric shock to anyone attempting to climb, cut or breach the fence. The shock is enough to create a strong psychological and physical deterrent dissuading trespassers from attempting to breach the perimeter.
Here are some reasons why electric fencing can be a great deterrent:
While electric fencing is an effective deterrent, it is often combined with other security systems such as CCTV cameras, outdoor alarm beams, access control and manned security personnel which provide a more comprehensive and robust security solution.
The effectiveness of an electric fence depends on proper installation, maintenance and adherence to local regulations and safety standards. An electric fence correctly configured in a series circuit will detect both a cut and a short in the fence.
New installation, repair or compliance inspection — share a few details and we will help you work through the next step.
Include your suburb, approximate boundary length and the make of your existing energiser if known. Photos and fault messages are useful when we discuss the project.
Send us your details and we will discuss the next step.
We use your details to respond to this enquiry. Read our privacy policy.
