Solar & electrical · Pretoria

Solar and electrical work by an electrician who actually shows up.

When you call Cert O Comp, you speak to the qualified electrician who will do the job. From a geyser that won't heat to a complete solar and battery system, it gets sorted properly, signed off with a Certificate of Compliance, and you're not left waiting.

  • You talk to the electrician, not a call centre
  • SANS 10142 COC on every installation
  • 5-year workmanship warranty
A completed Cert O Comp rooftop solar installation
Every installation includes COC certificate + two free maintenance checks in year one
Red Seal Electrician AREP P4 registered PV installer SANS 10142 certified Registered Electrical Contractor

Why Cert O Comp

Why clients keep our number

Anyone can sell you panels. What people remember is who picked up the phone, who arrived when they said they would, and who came back when something needed attention.

We answer, and we turn up

Call or WhatsApp and you get a real answer, quickly. If something has stopped working, we find a way to get to you soon, not whenever a slot opens up next week.

Done properly, and certified

Every job is done to SANS 10142 by a Red Seal electrician and AREP-registered PV installer, and signed off with a Certificate of Compliance.

We stand behind our work

5 years on workmanship, 10 on lithium batteries, 5 on inverters, plus online monitoring and two free maintenance checks in year one.

Christiaan Koch and a team member next to a completed battery installation
Christiaan and the team on a finished battery installation

Meet your electrician

A business with a name, and a phone that gets answered

Cert O Comp isn't a call centre or a big franchise. It's run by Christiaan Koch, a qualified Red Seal electrician and registered solar installer who is hands-on with every job and puts his name on the work.

That makes a difference when it counts. When the power trips, the geyser goes cold or the inverter throws an error, you're not put in a queue. You get a call back, an honest answer, and someone at your door as soon as it can possibly be arranged.

The same care goes into every solar installation: designed around how you actually use power, installed neatly, explained clearly, and followed up long after the job is done.

Christiaan Koch Founder & electrician, Cert O Comp

Our promise to you

  • We answer the phone, or call you back the same day.
  • We arrive when we say we will.
  • Urgent problems get looked at quickly, even when it's not a weekday.
  • We explain what's wrong and what it costs before we start.
  • We leave it neat, tested and certified.
Read what clients say on Google

Services

Solar and electrical services under one roof

From a single new plug point to a complete hybrid solar system, every job is done to the same certified standard.

Solar & backup power

Free solar site assessment

We visit your property, check roof space, orientation and your power use, then give you a clear, itemised quote. No charge, no obligation.

Custom system design & installation

Panels, inverter and batteries sized to your household or business and laid out to suit your roof.

Integration & optimisation

Your new system is wired neatly into your existing electrical installation and set up for maximum efficiency.

Battery storage & energy management

Store surplus solar power for the evening and for load-shedding, and manage how your home uses it.

Maintenance & performance monitoring

Regular checks and online monitoring keep your system running at its best year after year.

Permits, paperwork & advice

We handle the inspections and documentation, and explain your options, including financing and incentives, in plain language.

Electrical work & call-outs

  • Fault finding Tripping DB or no power? We trace the fault and fix it.
  • Geysers Not heating? Elements, thermostats and isolators tested and replaced.
  • Certificates of Compliance (COC) Issued only once an installation meets SANS 10142.
  • Lights & plug points New lights and outlets installed, old fittings repaired.
  • Circuit breakers Faulty breakers replaced safely.
  • Wiring upgrades Old wiring brought up to current safety standards.
  • Earth leakage & safety switches Protection against electric shock.
  • Smoke alarms Installed and maintained.
  • Appliances Connection and repair of household appliances.

How it works

From first call to switched on in four steps

  1. 1

    Free site assessment

    We visit, look at your roof and your electricity use, and answer your questions.

  2. 2

    Design & quotation

    You receive a detailed quote for a system designed around your needs. No two installations are the same.

  3. 3

    Professional installation

    Our team installs panels, inverter, batteries, switchgear and cabling neatly and safely.

  4. 4

    COC, hand-over & support

    We certify the installation, show you how it works and keep an eye on it with online monitoring.

Solar systems

Pick the system that fits your home

Three proven systems at a fixed, all-in price, built with LuxPower hybrid inverters, Dyness lithium batteries and Tier 1 550 W panels. Prices include VAT. The free site assessment confirms the right size for you.

Essential Backup

Keep the essentials running

Lights, Wi-Fi, TV, fridge and plugs stay on through load-shedding, with solar to take a bite out of your bill.

6 kW inverter5.1 kWh battery3.3 kWp solar

  • 6 kW LuxPower Eco Hybrid inverter
  • 1 × 5.12 kWh Dyness lithium battery
  • 6 × 550 W Tier 1 solar panels

Best for: smaller homes, townhouses and flats

Upgrade options tap to add

R62,500 incl. VAT, installed

Get this quote

Whole-Home Power

Power the whole house

Pumps, geysers and heavy appliances included, with a large battery bank so you rely far less on the grid.

12 kW inverter28.6 kWh battery13.2 kWp solar

  • LuxPower 12 kW Single Phase Eco inverter (SNA12000)
  • 2 × 14.3 kWh Dyness Power Brick batteries
  • 24 × 550 W Tier 1 solar panels

Best for: large homes, pools and small businesses

Need even more? Bigger systems are designed to order.

R175,500 incl. VAT, installed

Get this quote
Every installed package includes: All switchgearPV & AC cablingMounting for IBR & tiled roofsCOC certificate

Angled roof-mount structures are quoted separately. Terms and conditions apply.

Supply only

Prefer to buy the equipment only?

5 kW Starter Kit: 5 kW LuxPower inverter, 1 × 5.12 kWh Dyness battery and 6 × 550 W panels. Delivery can be arranged; must be installed by a certified electrician.

R33,500 incl. VAT

Enquire

Our work

Recent installations

Neat, safe and built to last. A few of the systems we have installed around Pretoria.

Certification

Qualified, registered and accountable

  • Qualified Olifantsfontein Red Seal Electrician / Millwright with Wireman's Licence
  • Certificates of Compliance issued to the latest SANS 10142 standard
  • Registered AREP P4 Level 2 practitioner (Association for Renewable Energy Practitioners): residential & small commercial PV design and installation
  • Registered member of TDMI Nearby Electricians
  • Registered Electrical Contractor

Our warranties

5 years
Workmanship guarantee on every installation
10 years
Lithium battery warranty
5 years
Inverter warranty

Warranty certificates are supplied for all products we install.

Questions

Frequently asked questions

Is the site assessment really free?

Yes. We visit your property, assess your roof and power needs, and give you a detailed quotation at no cost and with no obligation.

Do I need a Certificate of Compliance for solar?

Yes. A solar installation is an electrical installation, and a COC confirms it meets SANS 10142. Insurers and buyers will ask for it. We issue one on every installation that complies.

What type of roof can you install on?

Our packages include mounting for IBR and tiled roofs. Angled roof-mount structures are available and quoted separately.

Can I see how my system is performing?

Yes. We set up online monitoring so you can follow your solar production and battery level, and we use it to support you if anything needs attention.

Get in touch

Let's get your power sorted

Planning solar? Tell us a little about your property and we'll arrange your free site assessment.

Something stopped working? Don't wait for Monday. Call 083 601 7542 and we'll get to you as soon as we can.

We only use your details to reply to your enquiry. We never share or sell them.