Generator Supply
Single & 3-phase diesel or petrol sets from 5 kVA to 1500 kVA — trusted, reliable brands.
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Generator sets — supplied, installed & serviced
Backup generator installation, commissioning, repair and servicing for commercial and industrial premises — diesel sets 100 kVA and up, with ATS/changeover, UPS and inverter backup, all signed off with a COC.
Free quotes Qualified electricians COC certified
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Please note: we install & repair generator sets rated 100 kVA and up.
Supply of Generator Sets
Generator sets from 5 kVA to 1500 kVA
We have availability of single and 3-phase diesel or petrol generator sets from 5 kVA to 1500 kVA. We supply brands with a track record of proven reliability and ready availability of spares:
- YTO
- Honda
- Perkins
- Volvo
- Scania
- Lovol
- Cummins
- FAW
- Kipor
- Ricardo
Installation of Generator Sets
Compliant installation, done right
We do all our electrical generator installations to meet or exceed SANS regulations, and electrical compliance certificates are issued after installation. An automatic transfer switch ensures the generator goes online without any manual procedures.
All generator foundation requirements are designed by a practising civil engineer, and design drawings are supplied for any foundation work.
Book an InstallationService of Generator Sets & Repairs
24/7 service & breakdown support
Our electromechanicians are highly skilled, qualified and experienced. We source spare parts only from the original generator manufacturer. All major breakdowns can be repaired on site or at our workshop, and our 24/7 standby team can attend to any mechanical or electrical breakdown.
Our technicians are qualified in both the mechanical and electrical fields — so you get the best of the two industrial trades involved in your generator installation. We offer standard service agreement contracts, with added options of diesel fill and a preventative maintenance programme.
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What We Do
Our generator services
From supply and installation to repairs and servicing — diesel generator sets, 100 KVA and up.
Installation & Commissioning
Professional installation and commissioning to meet or exceed SANS regulations, with a COC issued.
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Automatic Transfer Switch
An ATS brings your generator online automatically — no manual switching during an outage.
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Foundations & Civil Works
Generator foundations designed by a practising civil engineer, with design drawings supplied.
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Repairs & Servicing
Breakdowns, scheduled servicing, overhauls and ATS testing on diesel sets 100 kVA and up — by technicians qualified on the engine and the electrics.
Generator repairs & servicing →
Industrial & Commercial Sets
Larger diesel generator sets for commercial and industrial premises, correctly sized and installed.
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UPS & Inverter Backup
Bridging the gap: UPS and inverter backup alongside your generator
A generator takes ten to thirty seconds to start and take load. For tills, servers, network equipment, security and control systems that is long enough to crash. That is where a UPS or an inverter-and-battery system earns its place — carrying the critical loads seamlessly through the changeover, or running an office’s essentials silently for hours without starting the set at all.
We design and integrate inverter, lithium battery and UPS backup for offices, retail and commercial premises across the East Rand and Sandton, wired into a properly split DB with a compliant changeover and issued with a COC. Working with Sunsynk, Victron and Hubble equipment, we size the system to the actual load — not the size of the building.
- UPS and inverter backup for IT, tills, security and control loads
- Generator-plus-UPS combinations for offices and retail
- Essential-circuit DB splits, changeovers and surge protection
Why Choose Us
Why customers trust Electromech Electrical Services
Certified Electricians
Registered, licensed professionals who work to SANS 10142 standards.
Fast Response Time
Quick to reach you across the East Rand, with 24/7 emergency cover.
Affordable Pricing
Transparent quotes with no hidden extras — fair every time.
24/7 Emergency Support
On call day and night for urgent electrical faults.
Safety Compliance
Every job compliant — with a valid COC to prove it.
Reliable Workmanship
Tidy, lasting work backed by our service guarantee.
How We Work
Our simple 6-step process
1✓
Enquiry Received
Call us or send your details and we'll respond quickly.
2✓
Site Inspection
We assess the work on site or talk it through with you.
3✓
Quotation Provided
A clear, no-obligation quote — no hidden charges.
4✓
Work Execution
Qualified electricians carry out the job tidily and safely.
5✓
Testing & Certification
We test everything and issue a COC where needed.
6✓
Completion & Support
We hand over clean work — and we're here if you need us.
Customer Trust
What our customers say
Real feedback from people across the East Rand.
FAQs
Frequently asked questions
Search or browse common questions about this service.
What backup power options do you install?
We install standby generators, inverter systems and battery backup — sized and integrated to suit your home or business needs and budget.
What is a changeover switch and do I need one?
A changeover switch safely transfers your installation between grid and backup power, preventing dangerous back-feeding. It's essential for a safe, compliant setup.
Can you size a system to my needs?
Yes. We assess which circuits and appliances you want to keep running and size the generator, inverter or battery system accordingly.
Is DIY generator connection dangerous?
Yes — connecting a generator without a proper changeover can back-feed the grid and endanger lives. Always have backup power installed by a qualified electrician.
Can backup power run my whole house?
It can, but it's usually more cost-effective to power essential circuits (lights, plugs, fridge, routers). We'll advise on the best balance for your budget.
Do you install inverters and batteries?
Yes. We install inverter and battery backup systems for quiet, automatic power during outages and load shedding.
Will the installation be compliant?
Yes — we integrate backup power safely into your DB board and can issue compliance certification for the work.
How long does installation take?
It depends on the system and your wiring. We'll give you a clear timeframe with your quote — many installs are completed in a day or two.
Can you wire only my essential circuits?
Yes. We can set up dedicated wiring so only your priority circuits draw from backup, maximising runtime.
Do generators and inverters need maintenance?
Yes — we offer servicing and support to keep your backup system ready and reliable when you need it.
How much does backup power cost?
It varies widely with the size and type of system. We provide a clear, no-obligation quote based on your needs.
Can you upgrade an existing backup setup?
Yes. We can improve, expand or make safe an existing generator or inverter installation.
What areas do you cover?
We serve the entire East Rand of Gauteng.
Do you offer free quotes?
Yes. All quotes are free and come with no obligation — just tell us what you need and we'll give you an honest price.
Are your electricians qualified and registered?
Yes. Our work is carried out and signed off by registered, wireman-licensed electricians who follow South African wiring regulations (SANS 10142).
Do you offer 24/7 emergency call-outs?
Yes — we provide 24/7 emergency electrician services across the East Rand for urgent faults such as power failures, tripping, sparking and burning smells.
Do you guarantee your work?
Yes. We stand behind our workmanship and use quality materials. If something isn't right with work we've done, we'll put it right.
How soon can you come out?
For emergencies we respond as fast as possible, day or night. For standard jobs we'll arrange a convenient time, often the same or next day.
What payment methods do you accept?
We accept common payment methods including EFT, and we'll confirm everything with your quote before any work begins.
How do I book a service?
Call or WhatsApp 073 087 5986, or fill in the form on this page. Tell us what you need and we'll arrange help or a free quote.
No matching questions — try a different word, or just contact us.
From the Blog
Backup power guides
Sizing, changeover, ATS, COCs and servicing — explained by the team that installs it.
Backup Generator Installation for Your Business: A Step-by-Step Guide
From the load assessment and kVA sizing to the plinth, the changeover switch, the ATS and the COC — what a compliant commercial generator installation looks like from first site visit to commissioning.
Read More
Inverter vs Generator vs UPS: Which Backup Power Is Right for You?
Silent inverters for the home, diesel sets for the factory, a UPS for the server room — or a combination. How the three main backup options compare on run-time, cost, noise and maintenance.
Read MoreDiesel Generator Servicing: What a Proper Service Includes (and How Often)
A standby set that only runs during outages is the one most likely to fail. Here’s the full service checklist we work through on commercial and industrial diesel generators, and how often each item needs attention.
Read MoreExplore More
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