Absolutely, there is a warranty period depending on the item installed.

Absolutely not, electrical wiring rules are made for your safety and everyone in the home or workplace.  A licensed electrican needs to do the work so everyone is kept safe.

Once you have purchased a new home or moved into a premise which has not had an electrical safety check.

Led's are the most economical to run. 

Some cheap LED's cast a poor light spectrum and flicker at a rate unseen by the human eye which is not good for our circadian rhythm.

Incandescants and Halogen cast a great quality light spectrum at an affordable price point. 

Recently the quality of light from the current affordable LED's being made are catching up to the quality of light spectrum from Halogen and 

Incandescent.

Yes

I am licensed to test and tag. 

For large commercial test tagging there is special equipment that makes tagging affordable and comply with relevant Australian electrical standards.

Absolutely. 

I provide a friendly, flexible and affordable maintenance service for home owners and real estate agents.