Thermo Group — Qualified Electricians You Can Trust
Reliable electrical work for homes, apartments and retail premises in Claremont — honest pricing, no call-out surprises.
At Thermo Group, we handle electrical installations and repairs across Claremont — home to Cavendish Square and a dense mix of Victorian and Edwardian houses, sectional-title apartment blocks and busy retail premises. We plan every Claremont job around that mix of property types from the first site visit.
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Registered, insured electricians. Open 24/7. Free quotes, no call-out fee.
Our qualified electricians handle the full range of electrical work in Claremont — from fault-finding and DB upgrades, through rewiring, body-corporate distribution boards and compliance testing.
Whether it’s a Victorian family home, a sectional-title apartment, or a retail unit near Cavendish, we work around your property type and its specific electrical load, not a one-size-fits-all approach.
Complete Electrical Solutions
Our electrical services include:
- ⚡ Distribution board (DB) upgrades & replacements
- 🔌 Full and partial rewiring
- 🔍 Fault finding & tripping breakers
- 🏢 Commercial & retail electrical installations
- 🏠 Residential electrical installations
- 🏡 Sectional title & body corporate DB work
- 🛠️ Earth leakage testing & repairs
- 📋 Electrical Certificate of Compliance (COC)
- 🔋 Load shedding-related repairs
- 🚑 Emergency electrical callouts
What We Design Around In Claremont
Retail & Commercial Load
Premises near Cavendish Square and the retail strip carry heavier, more constant electrical loads than a typical home. We size and protect circuits accordingly.
Victorian & Edwardian Wiring
Many Claremont homes date back over a century, often with wiring updated in patches over the years. We assess the full circuit history before recommending work.
Sectional Title DB Boards
Claremont’s apartment blocks often have shared body-corporate distribution boards. We know how to work within sectional title access and sign-off requirements.
Why A Claremont Electrical Job Isn’t A Generic Cape Town Callout
Claremont is one of the Southern Suburbs’ busiest nodes — Cavendish Square retail, sectional-title apartment blocks, and streets of century-old Victorian and Edwardian homes, all within a few blocks of each other. That mix means no two Claremont jobs look the same. We don’t quote a Claremont job off a standard template — our site visit accounts for the property type and its history before we recommend any work.
Wiring Claremont’s Mix Of Old And New
From patched century-old wiring in a family home to a shared DB board in a sectional-title block, we assess the full circuit and access requirements before any repair or upgrade.
Book Your Claremont Electrician
Fill out the form below to book a site visit and quote for electrical work in Claremont. Already know you also need a Certificate of Compliance? See our dedicated Certificate of Compliance (COC) Services in Claremont page.
Beyond The Callout — We Maintain It Too
At Thermo Group, our relationship with our Claremont clients doesn’t end when the job is signed off.
We offer ongoing electrical inspections and fault-finding for Claremont homes, apartments and retail premises, helping catch problems caused by ageing wiring or heavy commercial loads before they become expensive failures.
Regular checks can also help identify potential problems before they cause an outage or a compliance issue.
Electrical Certificates & Compliance
A working installation and a compliant one aren’t always the same thing. If you’re selling, renovating, or leasing a retail unit, your Claremont property may need an Electrical Certificate of Compliance (COC).
Thermo Group can assist with the inspection, any required repairs, and the compliance certificate itself, so you deal with one team from fault to certificate.
Our goal is to make the process as straightforward as possible for the property owner.
Your Local Claremont Electricians
From fault-finding and rewiring to DB upgrades, compliance and ongoing maintenance, Thermo Group provides a complete electrical solution for Claremont’s homes and businesses.
Driven by Quality. Powered by Trust.
More Electrical Services
Explore our full range of electrical installation services across Cape Town, see our solar installations in Claremont, or check our Certificate of Compliance services in Claremont.
Electrical Work Across Upper and Lower Claremont
Claremont is one of the Southern Suburbs’ main commercial centres, and it is usually described in two halves: Upper Claremont on the elevated slopes of Table Mountain’s eastern flank, and Lower Claremont to the east. The housing is just as varied. Historic Victorian and Edwardian homes sit near modern townhouses, sectional title apartments and penthouses, and the electrical needs of each differ.
A rough guide to what an electrician is likely to meet:
- Older freehold homes. Wiring that has been added to over many decades, early boards that were never meant for modern loads, and ceiling spaces that hide old joints.
- Larger family homes. Several distribution boards, outbuildings and garden equipment fed by long cable runs.
- Apartments and townhouses. Compact boards, shared common areas and rules set by the body corporate.
- Shops, surgeries and offices. Lighting, data, air conditioning and stand-by supplies where the business depends on power staying on.
Tell the electrician which type of property you have when you phone, and whether the fault is inside a unit or in a shared area. That alone shapes the first visit.
Harfield Village Cottages and Other Compact Older Homes
Harfield Village, part of greater Claremont, is known for Victorian and Edwardian cottages, many of them semi-detached or terraced. The first cottages date from the mid-1880s, and plots are small. According to the village’s own area information, the average erf is around 220 square metres, and properties more than 60 years old need heritage permission for changes.
On a small, old and often attached cottage, electrical work has its own considerations:
- Shared walls. In semi-detached and terraced cottages, cables and junctions may pass through or near a neighbouring property. Tracing circuits before cutting into a wall prevents surprises.
- Limited space for boards. A modern board with room for expansion may not fit where the old fuse box was. Moving it needs careful planning.
- Heritage character. Cornices, picture rails and timber floors are part of what makes a cottage valuable. Routes for new cabling should respect them.
- Dense evening loads. A small home with a heater, a kettle and a stove running together can overload a circuit that was installed for far less.
Before a cottage renovation
- Have the existing wiring and board tested, so that you know what you are building onto.
- Decide on the kitchen, bathroom and heating layout first, and give the electrician the plan for sockets, lights and appliances.
- Agree where cables will run, and where any surface conduit will be visible.
- Book the testing and certificate for after the work, before the painters and the final finishes.
It is far easier to run new cables before the plaster and paint go on.
Big Gardens, Outbuildings and Security: Upper Claremont Homes
Upper Claremont has tree-lined avenues and many large properties on generous plots. Electrical systems on these properties often reach beyond the house.
- Sub-boards and detached buildings. A garden cottage, a granny flat, a studio or a garage may be fed from the main house through a long underground cable. The cable size, protection and earthing all have to suit the distance and load.
- Pools, irrigation and garden lighting. These circuits live outdoors and should be protected by earth leakage, with weatherproof fittings and proper glands.
- Gates, alarms and cameras. Security systems rely on a steady supply, and a battery or inverter keeps them running when the grid is off.
- Trees. Roots and falling branches can damage underground cables and overhead feeds, and shade from big trees affects any future solar plans.
- Several boards. Large homes that have been extended usually have more than one board, and they should all be labelled, tested and recorded together.
An inspection that covers the whole property, including the outbuildings, gives a clear picture of what needs attention first. Where the board is the problem, see our distribution board upgrades page.
Apartments, Townhouses and Sectional Title Schemes
Claremont has a large number of sectional title properties, from lock-up-and-go apartments close to Cavendish Square to townhouse complexes in the leafier streets. Electrical work in a scheme has some extra rules.
- Know what you own. The wiring inside your unit and your own distribution board are generally the owner’s responsibility. Shared boards, lifts, lighting in passages and external supply cables are common property.
- Get permission where needed. Changes that affect the building’s appearance or shared services, such as new cable routes, external air-conditioning units or EV charging points, usually need the trustees’ approval.
- Plan for power-offs. Work on a shared board affects other residents, so the managing agent should be warned in advance.
- Check the load. A unit’s supply is limited, and adding a heat pump, induction hob and EV charger together may exceed what the unit can take.
For a unit sale or a new tenant, a valid certificate of compliance is usually required. Our electrical certificate of compliance page explains what is tested.
Main Road Shops, Medical Practices and Offices
Main Road is a commercial spine, with shopping centres, medical services, finance and property businesses. Electricians who work in such premises have different priorities from those in a home.
- Continuity. A practice or shop that loses power loses trade. Planned work is often done after hours or in stages.
- Sensitive equipment. Computers, card machines, diagnostic equipment and servers need surge protection and, in some cases, an uninterruptible supply.
- Lighting. Retail and office lighting upgrades, including the switch to efficient fittings and sensible zoning, can lower running costs.
- Distribution. Tenant fit-outs involve new sub-boards, floor boxes and data-and-power reticulation, all of which should be tested and certified.
- Safety lighting and signs. Emergency lighting and exit signs, where they are required, have to be tested and maintained.
The commercial buildings along the road come from several eras. Cavendish Square, for instance, opened in 1972, and many smaller premises have been refitted several times since they were built. That means a tenant moving into an older unit may inherit layers of earlier alterations, and an inspection of the existing installation is a sensible first step before any new fit-out.
For a commercial job, agree on working hours, access and the scope of the isolation before the work starts, and ask for a certificate for any new or altered installation.
Backup Power, Surge Protection and Lighting Upgrades
Claremont falls within the City of Cape Town, and many owners here want a layer of protection against outages and surges.
Options to consider
- Essential-circuit backup. An inverter with a battery feeding a separate sub-board for lights, router, TV and fridge.
- Changeover and generator inlet. A properly interlocked changeover lets a generator supply chosen circuits without any risk of feeding back into the grid.
- Surge protection. A protector at the board, plus protection for sensitive plug-in equipment, helps when the power returns after an outage.
- LED lighting. Replacing old fittings with LED reduces the load on your backup system, and is a good way to stretch battery capacity.
- Solar. If you want to cut grid use as well as ride out outages, see our solar installations in Claremont page.
When you compare options, think about what you want to keep running and for how long. A household that mostly needs lights and internet during an evening outage has quite different needs from a home office, a practice or a shop that must keep tills, computers and refrigeration on. The more circuits you want backed up, the larger and more expensive the inverter and battery have to be, so a list of priority circuits is the best starting point for any conversation with an installer.
Whatever you choose, the work has to be certified, and any system that can export power to the grid has to be registered with the City. An electrician will explain which category applies to your design.
How to Choose an Electrician in Claremont and What the Visit Involves
A sound first visit follows a pattern. The electrician listens to the problem, looks at the board and the affected circuits, checks the cause, and explains the options before work goes ahead. For a bigger job, such as a rewire or a new board, a written quote should state what is included, what is not, and whether a certificate of compliance will be issued.
Checking credentials
- Ask who will sign the certificate of compliance and whether they are a registered person.
- Confirm that the company is insured and that its people are qualified.
- Look for membership of a recognised industry body. Thermo Group is a member of the Electrical Contractors’ Association of South Africa, and its electricians are qualified and insured.
- Be wary of a quote that is given without anyone seeing the installation, or of an electrician who does not want to put things in writing.
Quotes from Thermo Group are free, with no call-out fee and no obligation. Phone 021 203 5337 or 082 302 0683 or request a quote online. If your home is on the edge of Claremont, you may also want the pages for Newlands, Kenilworth and Rondebosch. The main electrician in Cape Town page covers the whole service area, and for urgent faults see emergency electrician in Claremont.
Electrician Claremont: More Questions Answered
Yes. Circuit tracing equipment and testing at the board can show which breaker feeds a garden cottage, garage or pool, and how the cable runs. Old properties often have unlabelled or extended supplies, so the electrician may also check cable size, earthing and protection, then label everything clearly for the future.
Usually not for the wiring itself, but properties over 60 years old are covered by national legislation, and some areas, including Harfield Village according to its village association, have special status. If cabling or a new board will change visible features, check with the City’s heritage section first, and plan routes through existing voids.
It depends. Work inside your unit, on your own circuits, normally does not, but anything affecting common property, the building’s appearance or shared supply usually does. Examples are external air-conditioning units, new cable routes through shared spaces and EV charging points. Check your scheme’s conduct rules and ask the managing agent.
Yes, in most cases. LED fittings draw far less power than older halogen or incandescent lamps, so a battery lasts longer on the same lighting circuit. It also reduces the load that an inverter has to carry. An electrician can check that existing dimmers and transformers are compatible with the new lamps.
Moisture can get into fittings, glands or junction boxes, and cause a small current to leak to earth. The earth leakage unit then trips, as it should. The cure is to find the wet fitting, replace damaged seals or cables and use weatherproof enclosures, not to bypass the protection.
Often, yes. Commercial work is commonly scheduled for evenings or weekends so that trading is not disrupted. Tell the electrician what equipment must stay on, where the main isolator is and who can give access. Plan the power-off period and warn staff and neighbouring tenants in advance.
Warning signs include breakers that trip when several appliances run together, warm sockets or plugs, dimming lights, extension leads in every room and a board that feels warm. An electrician can measure the load on each circuit and show whether the circuits, the main breaker or the supply need upgrading.
A UPS protects one device, while board-level surge protection reduces the energy reaching every circuit in the property. They complement each other. Fridges, routers, TVs, gate motors and pool controllers are all vulnerable to surges, and an electrician can fit protection at the board and advise on extra protection for equipment that matters most.
Book Your Claremont Electrician
Fill in your details below and our team will contact you to discuss your electrical needs in Claremont.
Do you handle electrical work for both houses and apartment blocks in Claremont?
Yes. We carry out residential electrical work in Claremont’s freestanding houses as well as sectional title apartments, coordinating with body corporates where needed and issuing the required COC.
Can you upgrade an older Claremont property’s distribution board?
Yes. Many older Claremont homes still have outdated DB boards without proper earth leakage protection — we upgrade these to current safety standards as part of a rewire or standalone job.
Can you install backup power for load-shedding in Claremont?
Yes. We design and install backup power solutions — from a small essential-circuits system to full home coverage — sized to your household’s usage in Claremont, and we handle all the necessary Certificate of Compliance paperwork as part of the installation.
Will I get a Certificate of Compliance after the work?
Yes. Every electrical installation or repair we carry out is followed by the required Certificate of Compliance (COC), so your Claremont property stays compliant and ready for sale, rental, or insurance purposes whenever you need it.
Do you offer emergency electrician services in Claremont?
Yes. We provide emergency electrician call-outs across Claremont for urgent electrical repairs, power outages and fault-finding, alongside our regular residential electrical services. As a local, on-call electrician company, we aim to get to you quickly when something can’t wait.
How much does it cost to call out an electrician in Claremont?
Our call-out fee covers the electrician getting to you in Claremont and diagnosing the problem, and we’ll always confirm it with you upfront before we head out. Any repair or installation work is then quoted separately once we know exactly what’s needed, so you’re never left guessing at the final bill.
Do you handle small electrical jobs in Claremont, or only bigger projects?
We handle jobs of every size in Claremont — from a single faulty plug point or light fitting to full rewires and DB board upgrades. No job is too small to book in, and we’ll be upfront if a “small” issue turns out to need more extensive work.
How quickly can an electrician get to me in Claremont?
For a standard booking in Claremont we can usually schedule you within a day or two, and we offer priority response for genuine emergencies. Give us a call and we’ll give you an honest estimate of our earliest availability for your specific job.
Electricians Serving Claremont
Qualified, experienced electricians serving Claremont’s homes, apartments and retail premises — repairs, rewiring, compliance and installations.
Other Thermo Services In Claremont
- Certificate of Compliance Claremont
- Emergency Electrician Claremont
- Solar Installation Claremont
- Solar Maintenance & Repairs Claremont
See all Electrician areas in Cape Town or everything we offer in the Southern Suburbs.
