MLG ELECTRICAL & SOLAR

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Last Updated: August 30, 2026

Why Electrician Installation Guarantees Matter

Electrician installation guarantees are contractual and statutory protections covering workmanship quality and materials used in electrical installations. They define responsibility when something goes wrong, for how long, and what remedies are available. Understanding these protections before work begins is essential, the difference between straightforward resolution and costly dispute.

A licensed electrician confirms competency, but does not automatically guarantee faulty workmanship will be rectified at no cost or that the installation meets compliance standards. At MLG Electrical & Solar, we see this confusion regularly. Clients ask: “What does my guarantee actually cover?” The answer depends entirely on what was documented before, during, and after the job.

This guide covers how to verify electrician installation guarantees: checking licences, understanding certificates of compliance, distinguishing workmanship warranties from manufacturer warranties, and knowing your rights if something goes wrong.

Key Takeaway
The single most important step you can take is to request a written contract before any work starts. Without it, enforcing a workmanship guarantee becomes significantly harder.

How to Check Electrician Licence Status Before Work Begins

Checking an electrician’s licence status is the first non-negotiable step in verifying electrician installation guarantees. A valid licence confirms the tradesperson has met training, assessment, and regulatory requirements to perform electrical work legally and safely.

A homeowner sitting at a kitchen table, reviewing documents on a laptop while holding a printed electrician's licence card, natural daylight streaming through a nearby window
A homeowner sitting at a kitchen table, reviewing documents on a laptop while holding a printed electrician’s licence card, natural daylight streaming through a nearby window

The licence forms the legal foundation for any workmanship guarantee. If an unlicensed person performs electrical work and something goes wrong, consumer protections are severely limited, and your insurer may refuse to pay related claims.

Where to Find the Licence Register

Each state and territory maintains its own licence register for electrical contractors. In South Australia, the Consumer and Business Services licence register allows you to search by name, contractor licence number, or business name.

When you search, confirm three things:

  1. The licence is current, not expired, suspended, or cancelled
  2. The licence class covers the work being performed
  3. The business name on the licence matches the quote and contract

Check the licence again before work starts, as licences can be suspended between quote and job.

Verifying Insurance: Public Liability and Professional Indemnity

A licensed electrician should carry both public liability insurance and professional indemnity insurance.

Public liability insurance covers property damage or personal injury caused during the job. If a tradesperson damages your switchboard or starts an electrical fire, this policy covers remediation costs.

Professional indemnity insurance covers claims from professional advice or design errors, particularly relevant for solar system design where incorrect specifications lead to ongoing financial loss.

Ask for a current certificate of currency for both policies before work begins. A credible tradesperson will provide this without hesitation.


Electrical Certificate of Compliance Requirements Explained

An electrical Certificate of Compliance is a legally required document issued by a licensed electrical contractor after completing electrical installation work. It certifies that the work meets the Wiring Rules AS/NZS 3000 standard and applicable state regulations.

The certificate is not optional. Under South Australian electrical safety legislation, a Certificate of Compliance must be issued for prescribed electrical work and provided to the property owner. This document is your formal record that the installation has been inspected, tested, and found to comply with mandatory safety standards.

The certificate must include:

  • The licensed contractor’s name and contractor licence number
  • A description of the work performed
  • The address of the installation
  • The date of inspection and testing
  • The contractor’s signature

Without this document, you cannot demonstrate compliance to an insurer, future property buyer, or regulatory body.

Digital vs. Paper Documentation: What to Keep

For paper documentation, keep originals in a dedicated folder and store copies offsite or in cloud storage.

For digital documentation, confirm the document is a signed PDF with the contractor’s licence details clearly visible. Request that the contractor email the certificate directly rather than providing a printout you scan yourself.

Document Format Minimum Retention Period Why It Matters
Certificate of Compliance Digital or paper Life of the installation Proof of regulatory compliance
Written contract Digital or paper 7 years Enforces workmanship guarantee
Insurance certificate of currency Digital Duration of works Covers damage during installation
Manufacturer warranty cards Paper or digital Per product warranty term Covers component defects
Post-installation checklist Digital or paper Life of the installation Documents condition at handover
Pro Tip
Upload all compliance documents to a cloud storage folder named after your property address. If you sell the property or make an insurance claim, you can share the entire folder instantly.

Workmanship Warranty vs Manufacturer Warranty: Key Differences

A workmanship warranty covers errors made during installation. If a solar panel is wired incorrectly, a conduit lacks adequate support, or a switchboard connection is made to the wrong terminal, the installing electrician is responsible for rectification at no cost.

A manufacturer warranty covers product defects: a faulty inverter, degraded solar panel, or failed circuit breaker. The claim is made against the manufacturer, not the installer.

If your solar system underperforms six months after installation, the fault could be workmanship (incorrect panel orientation, undersized cabling) or manufacturer defect (faulty inverter, degraded panel cells). The investigation process, responsible party, and resolution pathway differ entirely for each.

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Under the Australian Consumer Law administered by the ACCC, consumers have statutory guarantees that apply regardless of written warranty terms. Services must be rendered with due care and skill, and goods must be of acceptable quality. Statutory rights cannot be contracted away.


Step-by-Step: How to Verify Electrician Installation Guarantees

Verifying electrician installation guarantees spans the full lifecycle of a job, from initial quote through post-installation documentation.

A licensed electrician in a high-visibility vest handing a printed Certificate of Compliance document to a homeowner at the front door of a residential property, afternoon sunlight, suburban setting
A licensed electrician in a high-visibility vest handing a printed Certificate of Compliance document to a homeowner at the front door of a residential property, afternoon sunlight, suburban setting

Step 1: Request a Written Contract Before Work Starts

Before any work begins, you should have a signed agreement that includes:

  • The scope of work in specific detail
  • The total price
  • The workmanship warranty period
  • Reference to manufacturer warranties for all major components
  • The expected completion date
  • A clause confirming that a Certificate of Compliance will be issued upon completion

Verbal agreements are not enforceable in the same way. A written contract protects both parties and removes ambiguity.

Step 2: Confirm the Certificate of Compliance Is Issued

Upon completion, request the Certificate of Compliance before making final payment. Do not accept a promise it will be sent later. Check that details on the certificate match the work performed.

Step 3: Document the Defects Liability Period in Writing

The defects liability period is the timeframe during which the contractor is obligated to rectify faults from their workmanship at no additional cost. This should be stated explicitly in the contract.

Ask for confirmation in writing of:

  • The exact start and end date of the defects liability period
  • The process for lodging a defect claim
  • The expected response time for attending to a reported defect
  • Whether the period resets for any rectified work
Watch Out
Do not assume a standard defects liability period applies if not written in the contract. Without a documented period, you may rely solely on statutory consumer guarantees, a process that takes longer and requires more effort.

Step 4: Run a Post-Installation Checklist

Before signing off on a completed job, conduct a physical inspection using a post-installation checklist to document the condition at handover.

Post-installation checklist:

  • All installed components match quoted specifications
  • No visible damage to cables, conduits, or fixings
  • All penetrations through walls or roof are sealed
  • Switchboard labels are accurate and legible
  • System powers on and operates as expected
  • Monitoring app or portal is configured (for solar systems)
  • Certificate of Compliance has been received
  • All manufacturer warranty cards have been handed over
  • Site is clean and free of installation debris

Red Flags and How to Resolve Disputes

Warning Signs of Faulty Workmanship

Watch for:

  • No written quote before work begins
  • Pressure to pay cash with no receipt
  • No Certificate of Compliance offered after prescribed work
  • Unusually low pricing that cannot be explained
  • Unlicensed subcontractors performing work without disclosure
  • Post-installation faults such as tripping circuit breakers, flickering lights, or solar systems not generating expected output within 30 days

A qualified tradesperson welcomes documentation. If a contractor resists providing a written contract, certificate, or insurance details, treat that as a warning sign.

Dispute Resolution: Your Rights Under Australian Consumer Law

If faulty workmanship is identified and the contractor refuses to rectify it, send a formal written notice outlining the specific defect, the relevant warranty clause, and a reasonable timeframe for rectification.

If the contractor does not respond, escalate to:

  1. Consumer and Business Services (CBS) South Australia, the regulatory body for licensed trades
  2. South Australian Civil and Administrative Tribunal (SACAT), for disputes involving financial compensation or rectification orders
  3. Australian Competition and Consumer Commission (ACCC), for systemic issues or breaches of Australian Consumer Law

The Consumer and Business Services complaint process for tradespeople outlines formal steps for lodging a complaint. Document everything: photographs, written correspondence, the original contract, and the Certificate of Compliance.

For solar-specific disputes, the Clean Energy Council’s consumer dispute process provides an additional avenue if the installer is an accredited CEC member.


Protecting your investment in any electrical installation comes down to documentation, verification, and knowing escalation pathways before you need them. The team at MLG Electrical & Solar provides written contracts, issues Certificates of Compliance as standard practice, and backs all installations with a clear workmanship guarantee. Contact us to discuss your electrical or solar installation needs and get started with a team that puts the paperwork where it belongs: in your hands before the job is done.

Frequently Asked Questions

How do I check if my electrician is licensed in South Australia?

Consumer and Business Services (CBS) South Australia maintains a public register of licensed electrical workers. Search the register online using the electrician’s contractor licence number or full name. A valid licence will show the licence class, expiry date, and any conditions. Always check before work begins, not after. If the tradesperson cannot provide a licence number, treat that as a serious red flag and do not proceed.

What is the difference between a workmanship guarantee and a manufacturer warranty?

A workmanship guarantee covers defects caused by the electrician’s installation method, such as incorrect wiring or poor connections. A manufacturer warranty covers faults in the product itself, such as a solar panel or switchboard component that fails due to a manufacturing defect. The two are separate obligations. If your solar system underperforms due to a loose connection, that falls under the workmanship guarantee, not the manufacturer warranty, so the installing electrician is responsible.

How long is an electrician legally required to guarantee their work?

Under Australian Consumer Law, electrical services carry a statutory warranty that the work will be carried out with due care and skill and be fit for purpose. There is no single fixed period across all states, but the defects liability period is commonly expressed in the written contract. Separate from this, Australian Consumer Law guarantees apply for a ‘reasonable time’ based on the nature and cost of the service.

What should be included in an electrical installation guarantee?

A written guarantee for electrical installation should state the scope of work covered, the duration of the workmanship guarantee, the process for lodging a warranty claim, and contact details for the responsible contractor. It should also reference the Certificate of Compliance number and note which components carry separate manufacturer warranties. For solar installations, confirm whether the guarantee covers inverter performance, panel output, and wiring separately, as each may have different coverage terms.

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