Is My Switchboard Asbestos? How to Tell and What to Do

If your Melbourne home was built before 1990, there is a real chance your switchboard contains asbestos. Asbestos was commonly used as a backing board in electrical switchboards throughout Australia from the 1940s right through to the late 1980s. It was cheap, fire-resistant, and readily available. The problem is that asbestos is now known to cause serious lung diseases, including mesothelioma and asbestosis, when its fibres become airborne and are inhaled.

In this guide, we explain how to identify whether your switchboard has asbestos, what the risks are, what Victorian law requires, and what a safe switchboard replacement looks like. As licensed Melbourne electricians (REC 33210), we deal with asbestos switchboards regularly across suburbs like Fitzroy, Richmond, Brunswick, Northcote, and Kew, where older housing stock is common.

What Does an Asbestos Switchboard Look Like?

Asbestos switchboard backing boards are typically a flat, grey or off-white panel sitting behind your circuit breakers or fuses. They are usually around 6mm thick and have a slightly fibrous texture. Unlike modern plastic or metal switchboard enclosures, asbestos boards were used as the mounting surface inside metal switchboard boxes.

Here are some signs your switchboard may contain asbestos:

Age of the property. If your home was built before 1990, asbestos-containing materials were commonly used throughout construction, including in switchboards. Homes built in the 1950s through 1970s are particularly likely to have asbestos backing boards.

Grey or off-white backing board. Look at the panel behind your circuit breakers or fuses. If it is a grey, cement-like board rather than plastic or painted metal, it could be asbestos. The material often has a slightly rough, fibrous surface.

Ceramic fuses or rewirable fuses. If your switchboard still has old ceramic fuses or rewirable fuse wire rather than modern circuit breakers and safety switches (RCDs), there is a high probability the backing board is asbestos. These older switchboard components were installed during the era when asbestos was standard.

Stamped markings. Some asbestos boards have manufacturer stamps or markings. Brands like “Hardiflex,” “Villaboard,” or “Durasbestos” were common asbestos-containing products used in switchboards. If you can see any branding on the board, do not disturb it, but make a note of the name.

Important: You cannot confirm asbestos just by looking at it. The only way to know for certain is to have a sample tested by a NATA-accredited laboratory. However, if your switchboard is old enough and has the characteristics described above, you should treat it as asbestos until proven otherwise. This is the approach required under Victorian workplace health and safety regulations.

Why Is Asbestos in Switchboards Dangerous?

Asbestos is only dangerous when its fibres become airborne. In a switchboard, this can happen in several ways.

Over time, the backing board can deteriorate, especially in damp conditions common in Melbourne’s climate. Moisture, heat cycling from electrical load, and general aging can cause the board to become friable, meaning it crumbles easily and releases fibres.

Any electrical work on the switchboard, such as replacing a fuse, adding a circuit, or tightening a connection, can disturb the asbestos board. Drilling, cutting, or even bumping the board can release fibres into the air. This is why it is critical that anyone working on an older switchboard understands the risk and follows proper procedures.

The health effects of asbestos exposure are severe and often delayed by decades. Even brief exposure to airborne asbestos fibres can contribute to serious conditions including mesothelioma (a cancer of the lining of the lungs), asbestosis (scarring of lung tissue), and lung cancer. There is no safe level of exposure to asbestos fibres.

Victorian Legal Requirements for Asbestos Removal

In Victoria, the removal of asbestos-containing materials is regulated under the Occupational Health and Safety Regulations 2017 and managed by WorkSafe Victoria. The rules are clear:

Licensed removal is mandatory. Any asbestos removal work must be carried out by a licensed asbestos removalist. For switchboard backing boards, which are typically classified as non-friable (bonded) asbestos, a Class B asbestos removal licence is required at minimum. If the board has deteriorated and become friable, a Class A licence is needed.

Notification requirements. For removal of more than 10 square metres of non-friable asbestos, the removalist must notify WorkSafe Victoria at least five days before work begins. While a single switchboard backing board is usually under this threshold, your removalist will advise on the specific requirements for your situation.

Safe work procedures. The removalist must follow a safe work method statement (SWMS) that covers containment, wetting of the material to prevent fibre release, use of personal protective equipment (PPE), and proper disposal at a licensed facility. The asbestos waste cannot go in regular bins or skip bins.

Clearance inspection. After removal, a clearance inspection may be required to confirm the area is safe. For larger jobs, this must be done by a licensed asbestos assessor using air monitoring.

Why You Need Both an Electrician and an Asbestos Removalist

Replacing an asbestos switchboard is a two-trade job. This is something many homeowners do not realise until they start getting quotes.

First, a licensed electrician needs to disconnect the power supply to the switchboard. This involves coordinating with your electricity distributor (CitiPower, Powercor, Jemena, AusNet, or United Energy, depending on your Melbourne suburb) to arrange a temporary disconnection or isolation of the mains supply.

Once the power is safely disconnected, the licensed asbestos removalist removes the asbestos backing board following all required safety procedures. The board is wrapped, sealed, and disposed of at a licensed waste facility.

After the asbestos is cleared, the electrician installs the new switchboard. This includes a modern enclosure, new circuit breakers, safety switches (RCDs) as required by AS/NZS 3000 (the Australian Wiring Rules), and proper labelling of all circuits. The electrician then arranges for the power to be reconnected and issues a Certificate of Electrical Safety.

At Carlin Co, we coordinate the entire process. We have established relationships with licensed asbestos removalists across Melbourne, and we manage the scheduling so that the disconnection, removal, and new switchboard installation happen seamlessly. You deal with one point of contact rather than juggling two separate contractors.

What Does a Safe Switchboard Replacement Look Like?

When we replace an asbestos switchboard, the end result is a modern, compliant switchboard that protects your home and family. Here is what is included in a proper replacement:

Modern enclosure. A new metal or polycarbonate switchboard enclosure rated for Australian conditions, replacing the old asbestos-backed unit.

Safety switches (RCDs). All circuits must be protected by residual current devices (RCDs) in accordance with current regulations. These devices detect earth leakage faults and cut the power in milliseconds, preventing electric shock. Many older switchboards with asbestos backing boards have no RCD protection at all, which is a significant safety risk. Learn more about RCD installation and testing.

Circuit breakers. Modern circuit breakers replace old ceramic fuses or rewirable fuses. Circuit breakers are more reliable, easier to reset after a trip, and provide better protection against overloads and short circuits. If your home still has a ceramic fuse box, upgrading to circuit breakers is essential.

Proper labelling. Every circuit in your new switchboard will be clearly labelled so you know which breaker controls which area of your home. This is a requirement under AS/NZS 3000 and makes future maintenance much simpler.

Certificate of Electrical Safety. All electrical work in Victoria must be covered by a Certificate of Electrical Safety (COES), which is lodged with Energy Safe Victoria. This certificate confirms the work has been completed by a licensed electrician and meets all regulatory requirements.

For more detail on switchboard replacement costs and what is involved, see our guide on switchboard replacement cost in Melbourne.

Common Questions Melbourne Homeowners Ask About Asbestos Switchboards

We get calls about asbestos switchboards every week, particularly from homeowners in Melbourne’s inner suburbs where housing stock from the 1950s to 1980s is common. Suburbs like Carlton, Collingwood, Fitzroy, Prahran, South Yarra, Hawthorn, and Malvern have a high proportion of homes with original switchboards that may contain asbestos.

One common concern is whether you can simply paint over or seal the asbestos board. While encapsulation (painting over with a special sealant) is sometimes used for asbestos in other applications, it is not recommended for switchboards. The board will still need to be accessed for any future electrical work, and encapsulation does not remove the long-term risk. Replacement is the correct approach.

Another question we hear is whether the asbestos board is safe if it is in good condition. If the board is intact, undamaged, and not deteriorating, it poses a lower immediate risk. However, any future electrical work on the switchboard will disturb the board, and the risk increases over time as the material ages. The practical advice for most homeowners is to plan for replacement rather than leaving it in place indefinitely.

If you are selling your home, be aware that a pre-sale building inspection may flag the presence of asbestos in the switchboard. This can affect buyer confidence and may come up during negotiations. Getting the switchboard replaced before listing can avoid this issue entirely. For more on electrical requirements when selling, see our guide on electrical safety certificates for selling a house in Victoria.

What Carlin Co Can Help With

If you suspect your switchboard contains asbestos, or if your Melbourne home was built before 1990 and still has its original switchboard, we can help. Carlin Co (REC 33210) provides complete asbestos switchboard replacement across Melbourne’s inner suburbs, including coordination with licensed asbestos removalists, full switchboard upgrades with modern safety switches and circuit breakers, and all required certificates and compliance documentation.

We also handle switchboard upgrades for homes that need more capacity, and we can assess whether your switchboard is safe or needs attention during a general electrical safety inspection.

Call us on 0432 632 346 or email [email protected] to arrange an assessment. You can also book online here.

Frequently Asked Questions

How do I know if my switchboard has asbestos?

Look for a grey or off-white backing board behind your circuit breakers or fuses. If your home was built before 1990 and the switchboard appears original, there is a good chance it contains asbestos. The only way to confirm is through laboratory testing by a NATA-accredited facility, but you should treat any suspect material as asbestos until proven otherwise.

Can I remove asbestos from my switchboard myself?

No. In Victoria, asbestos removal must be carried out by a licensed asbestos removalist. Attempting to remove it yourself is illegal, extremely dangerous to your health, and can result in significant fines from WorkSafe Victoria. You also need a licensed electrician to disconnect and reconnect the power supply.

How much does it cost to replace an asbestos switchboard in Melbourne?

The total cost for asbestos removal and switchboard replacement typically ranges from $2,500 to $5,000 depending on the size of the switchboard, the number of circuits, and the complexity of the asbestos removal. This includes the asbestos removalist, the new switchboard and components, electrical labour, and all certificates. See our detailed switchboard replacement cost guide for more information.

Is it safe to leave an asbestos switchboard in place?

If the asbestos backing board is in good condition and undisturbed, it poses a lower immediate risk. However, any future electrical work on the switchboard will disturb the material. The board will also deteriorate over time, especially in damp conditions. The recommended approach is to plan for replacement rather than leaving it indefinitely.

Do I need to tell buyers about asbestos in my switchboard?

In Victoria, sellers are required to disclose known material facts about a property. If you know your switchboard contains asbestos, this should be disclosed. A pre-sale building inspection will likely identify it regardless. Replacing the switchboard before sale removes this issue and can be a selling point.

Related Articles

• How Much Does It Cost to Upgrade a Switchboard in Melbourne?
• 5 Signs Your Home Needs a Switchboard Upgrade
• Signs Your House Needs Rewiring: A Complete Checklist

Switchboard and Meter Box Services

If your switchboard contains asbestos, a full replacement including a meter box upgrade is usually recommended. Our general electrician team follows strict WorkSafe Victoria protocols for safe asbestos removal during switchboard replacements.

Switchboard and Meter Box Services

If your switchboard contains asbestos, a full replacement including a meter box upgrade is usually recommended. Our general electrician team follows strict WorkSafe Victoria protocols for safe asbestos removal during switchboard replacements.

Switchboard and Meter Box Services

If your switchboard contains asbestos, a full replacement including a meter box upgrade is usually recommended. Our general electrician team follows strict WorkSafe Victoria protocols for safe asbestos removal during switchboard replacements.

Switchboard and Meter Box Services

If your switchboard contains asbestos, a full replacement including a meter box upgrade is usually recommended. Our general electrician team follows strict WorkSafe Victoria protocols for safe asbestos removal.