Why guarantees matter when hiring an electrician
A good electrician should stand behind both the quality of their labour and the products they supply. In New Zealand, that matters because electrical work is safety-critical: faulty wiring, poor connections or incorrect installation can lead to shocks, outages, fire risk and expensive follow-on repairs.
For homeowners, the key point is this: not every “warranty” means the same thing. Some cover the electrician’s workmanship, some cover the manufacturer’s product, and some rights are set out in law under the Consumer Guarantees Act 1993 (CGA). Before you accept a quote, ask what is covered, for how long, and how claims are handled.
The three layers of protection: workmanship, product and legal rights
When you hire an electrician, there are usually three separate protections to understand.
| Type of protection | Who it applies to | What it usually covers | Typical duration | |---|---|---|---| | Workmanship guarantee | The electrician or company | Labour, installation quality, fixing faults caused by poor workmanship | Often 6–24 months, but varies | | Product warranty | The manufacturer or supplier | Defective parts or appliances such as switchgear, lights, heat pumps, extraction fans, sensors and control gear | Set by manufacturer; often 1–5 years or more | | Consumer Guarantees Act | The electrician as a business supplying services and goods to a consumer | Services must be carried out with reasonable care and skill; products must be of acceptable quality and fit for purpose | Applies by law, regardless of any written warranty |
These protections can overlap. For example, if a newly installed bathroom heater fails because it was wired incorrectly, that may be a workmanship issue. If the heater itself is faulty out of the box, that is more likely a product warranty matter, and possibly a CGA issue as well.
What a workmanship guarantee should cover
A workmanship guarantee is the electrician’s promise that their installation work will be free from defects arising from their labour for a set period. It is not the same as a manufacturer’s warranty on parts.
A sensible workmanship guarantee should clearly state:
- the length of the guarantee - what work it applies to - what counts as a defect - whether call-out fees apply if a fault is not their responsibility - how quickly they will inspect and fix issues - whether the guarantee is transferable if you sell the home
For typical residential work in NZ, a workmanship guarantee of at least 12 months is common, though many reputable firms offer more for certain installations. For larger jobs such as a full rewire, switchboard upgrade, EV charger installation or a major renovation, you should expect the guarantee terms to be written into the quote or contract.
A workmanship guarantee should ideally cover issues like:
- loose terminations or poor connections - circuits that trip because of installation errors - fittings installed incorrectly or unsafely - switches, lights or outlets that fail due to poor workmanship - wiring that does not match the agreed specification
It generally should not cover damage caused by misuse, later alterations by another tradesperson, flood, fire, storm damage, pests or normal wear and tear.
Product warranties: what is covered and what is not
Electricians often supply and install products such as cable, switches, RCDs, circuit breakers, downlights, bathroom fans, rangehoods, data cabling, heat pumps and EV chargers. Many of these products come with separate warranties from the manufacturer.
Important things to check:
- who is the warrantor: the manufacturer, importer, or supplier - how long the warranty lasts - whether the warranty is parts-only or includes labour - whether the product must be registered online - whether proof of professional installation is required - what exclusions apply, such as moisture ingress, misuse or power surges
Do not assume a “5-year warranty” means you are fully covered for 5 years of labour and parts. Some warranties only cover replacement of the item itself, while labour to remove and reinstall it may not be included.
If the electrician supplies the product, ask them to give you:
- the product make and model - the warranty document or link - any conditions that must be met to keep the warranty valid
If you buy products yourself from a retailer, check whether the electrician is willing to install them. Some electricians will not guarantee customer-supplied products, or they may only warrant the labour, not the part.
How the Consumer Guarantees Act protects homeowners
The Consumer Guarantees Act applies when a business supplies goods or services to a consumer for personal, domestic or household use. That usually includes most residential electrical work.
Under the CGA, electrical services must be carried out:
- with reasonable care and skill - in a timely manner, if no time is agreed - to a reasonable standard, suitable for the purpose discussed - in compliance with the agreed price and description
Goods supplied must also be of acceptable quality, fit for purpose and match their description.
This means a contractor cannot simply waive away your rights with fine print. A written guarantee can add extra protection, but it cannot reduce your CGA rights if you are a consumer.
For homeowners, the CGA matters most when:
- the work is faulty or unsafe - the electrician refuses to fix a legitimate problem - the job is not completed to the quoted specification - a supplied product is defective or not fit for purpose
What recourse you have if electrical work is faulty
If something looks wrong, do not wait until the next big bill or the next summer storm. Deal with it promptly.
A practical step-by-step approach:
1. **Stop using the affected circuit or appliance if safety is a concern.** If you smell burning, hear buzzing, see scorch marks or get repeated tripping, switch off the relevant circuit if you can do so safely. 2. **Document the issue.** Take photos, note dates, and keep copies of the quote, invoice, guarantee terms and any texts or emails. 3. **Contact the electrician in writing.** Explain the fault clearly and ask for an inspection and remedy. 4. **Give them a reasonable chance to fix it.** Under the CGA, businesses should be allowed to put things right where appropriate. 5. **Get an independent opinion if needed.** Another licensed electrician can assess whether the issue appears to be workmanship, product failure or something else. 6. **Escalate if the response is poor.** If the electrician refuses responsibility or the fault is not resolved, use formal dispute channels.
Possible remedies may include:
- repairing the fault at no cost - replacing defective parts - refunding the cost of the faulty work in serious cases - covering reasonable consequential costs where the law allows
If the issue is urgent and unsafe, you may need immediate remedial work by another electrician to make the property safe. Keep the evidence and receipts, as you may later need to recover costs.
Licensing, compliance and why it affects warranties
Electrical work in New Zealand is regulated, and safety and compliance matter for warranty and insurance claims.
When hiring, make sure the person doing the work is appropriately licensed through the Electrical Workers Registration Board (EWRB) for the type of work involved. Ask to see their practising licence if relevant.
Also check whether the work needs any other approvals:
- Some electrical work is prescribed and must be done by a licensed person. - Renovations that affect other building elements may also trigger building consent requirements through your local council. - In a home, certain specialist work may need to be certified and documented properly before it is covered by a guarantee or accepted by an insurer.
If work is done by an unlicensed person, or if the installation does not comply with the relevant standards, your ability to enforce a workmanship guarantee may be limited and insurance claims can become more difficult.
Questions to ask before you accept a quote
Always get multiple written quotes, especially for bigger jobs such as rewires, kitchen renovations, switchboard replacements or EV charger installs. In New Zealand’s busy summer renovation season, availability can vary, so it helps to organise this early.
Ask each electrician:
- What workmanship guarantee do you offer? - Is the guarantee in writing, and what does it exclude? - What products are included, and what warranties apply? - Who handles warranty claims for supplied products? - Are there call-out charges if the fault is not your workmanship? - Will you provide compliance documentation where required? - Are you licensed and insured? - Can you give examples of similar jobs you have completed?
Also make sure the quote states:
- exact scope of work - brands and model numbers where possible - whether GST is included - any provisional sums or allowances - start date and expected completion date - whether after-hours or emergency work costs extra
Red flags that suggest poor warranty support
Some warning signs are worth taking seriously:
- vague promises like “we stand by our work” with no written terms - no invoice, no compliance records, or no paper trail - reluctance to specify product brands or models - a quote that is much lower than others without explanation - pressure to pay in full upfront for standard residential work - no mention of what happens if a light, switchboard component or charger fails
A trustworthy electrician does not need to over-promise. They will explain what they cover, what the manufacturer covers, and how faults will be handled.
What to do if the electrician won’t fix a fault
If a legitimate fault is not resolved after you have raised it politely and clearly, take the following steps:
- send a written final request with a deadline - refer to the quote, invoice and any guarantee terms - ask for an inspection by the original contractor first, if safe - if needed, obtain an independent report from another licensed electrician - consider using the disputes process in the contract, or mediation - if the amount involved is significant, seek advice about the Disputes Tribunal or a lawyer
Keep in mind that the best route depends on the size and seriousness of the issue. For a relatively small repair, a practical resolution is often faster and cheaper than a formal dispute. For unsafe or major work, you may need to act more quickly.
The bottom line for homeowners
A quality electrician should offer more than a verbal promise. Look for a clear workmanship guarantee, proper product warranty information, and a business that understands its obligations under the Consumer Guarantees Act.
Before hiring, compare at least two or three written quotes, check the electrician’s credentials, and make sure you understand exactly who is responsible if something goes wrong. That small bit of due diligence can save a lot of stress, cost and safety risk later on.
If the work is faulty, you are not left without options. In New Zealand, the law gives homeowners meaningful rights — but those rights are easier to use when you have written terms, good records and a licensed professional doing the job from the start.