Safety switches (RCDs) cut the power in a fraction of a second if electricity leaks to earth, protecting people from serious electric shock. Daly & Co Electrical installs, tests and certifies RCDs for homeowners, landlords, property managers and businesses across Armadale, Kelmscott, Roleystone and Perth’s south-east.
RCD rules for WA homes
- WA homes must have at least two RCDs protecting all power and lighting circuits before they are sold.
- Rental properties must have at least two RCDs protecting all power and lighting circuits before a tenancy begins.
- New or altered circuits must be RCD protected under the Wiring Rules.

Our RCD testing service
- Push-button and trip-time testing of every RCD
- Checking which circuits each RCD protects
- Installing additional RCDs where needed
- Replacing faulty or slow RCDs
- Electrical Safety Certificates and records for agents, buyers and tenants
RCD testing for workplaces
Workplaces need to manage electrical risks, and RCD testing is a key part of that. We can test your RCDs and record the results alongside test and tag and annual compliance testing, so everything is done in one visit.
Test your RCDs regularly
Press the test button on each RCD every three months. The power to that circuit should switch off. If it doesn’t, call a licensed electrician straight away.
Servicing homes near you
We test and install RCDs for homes and rentals in Gosnells, Maddington, Kenwick, Armadale, Kelmscott and nearby suburbs.
Frequently asked questions
How many RCDs does my home need?
WA homes being sold or rented must have at least two RCDs protecting all power and lighting circuits. Older homes may need a switchboard upgrade to achieve this.
What’s the difference between an RCD and a circuit breaker?
A circuit breaker protects wiring from overload, while an RCD protects people from electric shock by detecting current leaking to earth.
Do you provide a certificate?
Yes. After testing or installing RCDs, we provide an Electrical Safety Certificate you can give to your agent, buyer or property manager.
All our electrical work is carried out by a licensed electrical contractor (EC 15388) and comes with a 3 year warranty.
Selling, leasing or just want peace of mind? Call David on 0404 241 051 or request a free, no-obligation quote.