Can you do it yourself? 
Unless you are fully trained and have all the required tools and training to do it on your own, you should not try that. You must contact a qualified team if you do not want anything to go wrong! Untrained hands can cause serious troubles at your house and you should never try saving a few bucks at the cost of your life. Dealing with electricity is critical and it must only be done by professionals. 

When is re-wiring required? 
Normally, people will not go for re-wiring in their homes as they think that the old wires are working simply fine. Over the passage of time, wires start melting (especially if low-quality products are used during initial installations). You must get your electrical wiring inspected to confirm that everything is safe inside. Re-wiring is not an expensive assignment when you do it with us. We understand the budget constraints and guide our clients the affordable solutions which they can opt to get the safest re-wiring in their homes and offices. Building renovation is the best time to contact us for the re-wiring project.