Intercom System Repairs · GSM · Gate-Linked
Intercom System
Installation and Repairs
Intercom system repairs and Installation across Johannesburg & Gauteng. Audio, video, gate-linked, GSM & multi-apartment systems. Same-day repairs. New installations include full cabling & commissioning. Answer your gate from your phone anywhere in the world. Residential, estates and commercial. Same-day repairs. 18 years experience.
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Intercom System Installation and Repair FULL SERVICE LIST
Intercom System Installation and Repair Services We Offer
We provide professional intercom system installation and intercom repairs for residential, commercial, industrial and estate properties across Gauteng. Our technicians install, repair and maintain audio and video intercom systems designed to improve communication, visitor access control and property security.
Intercom System Installation
We install complete intercom systems for homes, apartments, estates, offices and commercial properties. Our installations include audio intercoms, video intercoms, wireless intercom systems and gate communication systems.
All intercom installations are professionally configured for reliable communication and secure visitor access control.
Intercom System Repairs
We repair faulty intercom systems that stop working, lose audio, display poor video quality or fail to communicate with gate and access systems. Common problems include damaged wiring, faulty handsets, power supply issues and weather-related damage.
Our technicians diagnose and repair intercom faults quickly for residential and commercial properties.
Maintenance & Servicing
Regular intercom servicing helps prevent communication failures and expensive repairs. Our maintenance service includes testing audio quality, checking wiring connections, cleaning outdoor stations and inspecting power supplies.
Routine maintenance improves system reliability and long-term performance for residential and commercial intercom systems.
Power Supply & Wiring Repairs
Intercom systems often fail because of damaged wiring, power surges or faulty power supplies. We repair intercom cabling, replace damaged power units and diagnose electrical faults affecting intercom operation.
We also repair systems damaged by lightning and load shedding power surges.
Intercom System Upgrades
We upgrade old intercom systems to modern audio, video and smart intercom solutions. Upgrading improves communication quality, visitor management and overall property security.
We replace outdated components and modernise intercom systems for homes, offices and complexes.
Intercom Access Control Integration
We integrate intercom systems with gate motors, electric strikes, magnetic locks and access control systems for complete property security solutions.
Our technicians configure intercom systems to work with automated gates, biometric systems and remote access devices.
System Types
Intercom System Types — Which Is Right for You?
The right intercom system depends on your property type, how many units need access, and whether you want to answer from your phone or a fixed handset.
GSM Dialler Intercom
When a visitor presses the call button at your gate, the unit dials your cell phone. You speak to the visitor through your phone and press 9 (or your configured key) to open the gate remotely — from anywhere in the world. No indoor handset, no wiring through the house. Just a SIM card in the unit and a mobile signal at the gate. Works with any gate motor.
Video Intercom
A camera at the gate unit transmits live video to a screen inside your home. You see who is at the gate before deciding to open. More secure than audio-only you verify the visitor visually before granting access. Available as wired (handset in house) or Wi-Fi (answer on smartphone app). All Centurion, ET and Gemini gate motors supported.
Audio Intercom
Voice-only communication between the gate unit and an indoor handset. The most basic and affordable option ideal for smaller properties where the homeowner is always in the house. No camera, no smartphone integration. Requires a cable from the gate to the indoor handset. Reliable and low-maintenance. Gate release button on the handset opens the gate directly.
Most Popular Choice
GSM Intercom — The Complete Guide for Johannesburg Homeowners
The most searched intercom feature in Johannesburg and content no competitor explains properly.
A GSM intercom is the most practical and popular intercom choice for Johannesburg residential homes and it is consistently the most misunderstood. Here is everything you need to know before buying one.
How a GSM intercom works: A visitor presses the call button at your gate. The intercom unit which has a SIM card inside dials your registered cell phone number. Your phone rings like a normal call. You answer, speak to the visitor, and if you want to open the gate, you press 9 (or your configured digit) on your phone keypad. The intercom sends a signal to the gate motor relay, opening the gate. You can do this from anywhere in the world your office, another city, overseas.
What You Need
A GSM intercom unit at the gate · A SIM card with airtime or a data bundle · Mobile signal at your gate location · A wire connection to your gate motor relay (we supply and connect this) · Your cell phone number programmed into the unit
What Does It Cost to Run?
The intercom uses airtime each time a visitor calls typically 10–30 seconds per call. A standard prepaid SIM costs R50–R100 per month in airtime for a busy residential gate. Alternatively, load a monthly data bundle and use a VoIP-capable unit for lower running costs.
Installation Requirements
The intercom unit is mounted at the gate entrance. We connect a 2-core trigger wire to your gate motor relay. No indoor wiring is required. Installation typically takes 2–3 hours including programming, testing and demonstration. The SIM card can be Vodacom, MTN, Cell C or Telkom we recommend whichever network has the best signal at your gate location.
How Many Numbers Can Be Programmed?
Most GSM intercoms support 1–10 registered numbers. Some models support up to 100 numbers useful for cluster complexes where multiple residents can open the gate. Each registered number can answer the call and press 9 to open. Ask us which model suits your number of users.
What Happens During Load Shedding?
GSM intercoms with a battery backup continue to operate during load shedding the unit runs on internal battery for 4–8 hours. The gate motor may also need its own battery backup to operate without mains power. We recommend installing a battery backup for both the intercom and gate motor for seamless operation during outages.
Can a GSM Intercom Open the Gate Without a Call?
Yes. You can programme your own number to open the gate silently by dialling the intercom SIM number from your phone the intercom recognises the authorised number and opens the gate without ringing. This is the easiest hands-free access method for homeowners arriving home.
Intercom System Repairs - Video Intercom Guide
How a Video Intercom System Works
From visitor pressing the button to you seeing them on screen and opening the gate the complete process.
Visitor Presses Call
The visitor presses the call button on the outdoor gate unit. The unit immediately activates its built-in camera and begins transmitting live video to the indoor monitor or smartphone app.
Indoor Monitor Rings
The indoor handset screen lights up showing a live feed of the visitor at the gate. For Wi-Fi / IP systems, your smartphone app receives a push notification with the live video feed even if you are away from home.
Two-Way Conversation
You pick up the handset (or answer in the app) and speak with the visitor through the two-way audio. Night vision on the outdoor unit ensures you can see the visitor clearly after dark critical for Johannesburg security.
Open Gate Remotely
Press the gate release button on the handset (or tap "Open" in the app). The intercom sends a relay signal to the gate motor, opening the gate. The entire process takes under 30 seconds from call to gate opening.
Self-Diagnosis Guide
What's Wrong With My Intercom?
Match your symptom to the likely cause. Most intercom faults are same-day fixes.
- Intercom rings but gate won't open
- Likely Cause
- Broken trigger wire, failed relay or motor mismatch
- Fix / Action
- Wire / relay repair — R550–R1,200
- No dial tone on audio intercom
- Likely Cause
- Power supply failed, wiring break or handset fault
- Fix / Action
- PSU / wire / handset — R450–R2,000
- Video screen shows no image
- Likely Cause
- Camera failed, cable damaged or power fault
- Fix / Action
- Camera / cable replace — R800–R2,500
- GSM not calling on visitor press
- Likely Cause
- No airtime on SIM, no signal, or unit fault
- Fix / Action
- SIM top-up / unit repair — R350–R1,800
- GSM calls but pressing 9 won't open gate
- Likely Cause
- DTMF tone detection failed or relay wiring broken
- Fix / Action
- Relay / wiring fix — R550–R1,200
- Intercom crackles or distorted sound
- Likely Cause
- Corroded connector, damaged cable or handset fault
- Fix / Action
- Cable / connector repair — R550–R1,000
- Intercom works but very faint sound
- Likely Cause
- Volume setting or corroded speaker
- Fix / Action
- Adjust / replace speaker — R350–R800
- Can't programme numbers into GSM unit
- Likely Cause
- Incorrect SMS format or SIM issue
- Fix / Action
- Reprogramming service — R350–R600
- System stopped after load shedding
- Likely Cause
- Power supply surge damaged or battery flat
- Fix / Action
- PSU / battery replace — R450–R900
How We Install
Our Intercom Installation Process
From your first call to a fully working system here is what to expect.
Free Site Assessment
A technician visits your property to assess the gate entry point, measure cable runs, check mobile signal strength (for GSM systems), identify the gate motor model for relay compatibility, and recommend the right intercom system for your property. The assessment is free and no-obligation. We typically visit within 24–48 hours of your call.
Supply and Installation
We mount the outdoor intercom unit at the gate, run the cable to the indoor handset location (for wired systems), connect the trigger wire to the gate motor relay, connect power, and install the indoor handset or screen. For GSM systems, we insert the SIM card and connect the trigger wire only no indoor wiring needed. Most single-home installations take 2–4 hours.
Programming and Testing
We programme all required phone numbers (for GSM), test the call function, test the gate release, demonstrate the system to you, and configure any advanced settings like auto-open codes or time-based access. For video intercoms, we test night vision and configure any app connections. We don't leave until everything works perfectly.
Gate Integration
Linking Your Intercom to Your Gate Motor
All intercom systems require a trigger connection to your gate motor. Here is how we handle integration with every major gate motor brand.
Every gate motor has a trigger relay a pair of terminals on the control board that, when briefly connected (short-circuited), send a command to open the gate. An intercom system connects to these terminals and short-circuits them momentarily when you press the gate release button (or press 9 on a GSM system). Getting this connection right is critical incorrect wiring or voltage mismatch between the intercom and gate motor is the most common cause of intercom-gate integration failures.
Call for a free quote
061 402 6299
24/7 Emergency Line Available
Centurion D5 / D5-Evo
Centurion D10 Smart
ET, Gemini, DTS, Nice
Intercom rings but gate won't open? We fix that.
Customer Reviews
What Our Customers Say
“Paskwa Gate Repairs installed a GSM intercom linked to our Centurion D5. The whole job took 3 hours and now I can open the gate from my phone anywhere. The technician was very knowledgeable and explained everything clearly. Excellent service.” Sara L
"Our intercom was ringing but pressing 9 wouldn't open the gate. Paskwa Gate Repairs came out same day, found a broken trigger wire and repaired it in under an hour. Very affordable and professional. Will use again.” Mark B.
"We needed a video intercom for our cluster complex 8 units.Paskwa Gate Repairs installed the entire system in 2 days, wired all units, programmed everything and demonstrated it to each resident. Professional team and competitive pricing." Cluster Trustees.
FAQs
Frequently Asked Questions Intercom Repairs Johannesburg
How Much Does Intercom Installation Cost in Johannesburg?
Intercom installation costs R1,800–R3,200 for a GSM dialler system (most popular), R2,500–R4,500 for a wired audio intercom, and R3,500–R6,500 for a video intercom with gate integration. IP/Wi-Fi smart intercoms start from R5,500. Multi-unit systems start from R8,000. All prices include supply, installation, cabling and programming. Free site assessments available. — call 061 402 6299
What Is a GSM Intercom and How Does It Work?
A GSM intercom dials your cell phone when a visitor presses the call button at your gate. You answer like a normal call, speak to the visitor, then press 9 on your phone keypad to open the gate. The intercom has a SIM card inside and uses the mobile network no indoor wiring or handset is needed. You can answer from anywhere in the world
Can I Answer My Intercom on My Smartphone?
Yes — two ways. A GSM intercom calls your cell phone directly. An IP/Wi-Fi video intercom sends a push notification to your smartphone app with live video, and you can open the gate from the app. We install both types. For most Johannesburg homes, a GSM intercom is the simplest and most cost-effective smartphone-compatible option.
My Intercom Rings but the Gate Won’t Open — What’s Wrong?
The most common intercom fault in Johannesburg. The likely causes are: a broken or corroded trigger wire between the intercom and gate motor, a failed relay inside the intercom, or a voltage mismatch between the intercom trigger output and the gate motor's trigger input. Repairs Plus diagnoses and repairs intercom-to-gate wiring faults same-day for R550–R1,200..call 061 402 6299 for emergency repair.
What Is the Difference Between a Video and Audio Intercom?
Does a GSM Intercom Work with My Centurion Gate Motor?
Yes. All GSM intercoms connect to the trigger relay terminals on your Centurion gate motor (or any other gate motor brand). When you press 9 on your phone, the intercom sends a brief short-circuit signal to these terminals, triggering the gate to open. Repairs Plus connects and tests this integration as part of every GSM intercom installation.
How Many Phone Numbers Can a GSM Intercom Call?
Standard GSM intercoms support 1–10 registered numbers. Any of these numbers can answer the call and press 9 to open the gate. Some advanced models support up to 100 numbers useful for cluster complexes. We recommend the model with the right capacity for your situation. Ask us when you call for a quote.
Have a different Question?
Get In Touch
Get Your Intercom Installed or Repaired
Free site assessments. All system types. Gate integration included. Same-day repairs. Across all of Johannesburg and Gauteng.
- 061 402 6299 — Call or WhatsApp
- info@paskwagaterepairs.co.za
- 7 Poplar Avenue, Broadacres, Sandton, 2021
- Mon–Fri: 07:00–18:00 | Sat - Sun: 07:00–14:00
- 24/7 Emergency Line available
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Where We Work
Intercom Installation Across All of Johannesburg
GSM diallers, video intercoms, audio systems and multi-unit installations across all of Johannesburg and Gauteng.
- Alberton
- Douglasdale
- Sunninghill
- Lonehill
- Moreleta Park
- Morningside
- Silver Lakes
- Amberfield
- Bedfordview
- East Rand
- Johannesburg
- Midstream
- North Riding
- Northcliff
- Randburg
- Benoni
- Boksburg
- Edenvale
- Kyalami
- Kempton Park
- Parkhurst
- Roodepoort
- Bryanston
- Faerie Glen
- Fourways
- Meyersdal
- Melrose Arch
- Pretoria
- Pretoria East
- Waterfall
- Centurion
- Garsfontein
- Hyde Park
- Midrand
- Monavoni
- Rivonia
- West Rand
- Sandton
Not listed? We cover all of Gauteng — call 061 402 6299 to confirm availability for your area.