What are the different types of electrical installations?

We need electrical companies London from time to time for different types of electrical installations. Here, we are going to discuss two different types of electrical installations. One is residential electrical installation and the other one is commercial electrical installation.
1) Residential installation
It can be as small as installing wires for lighting or installation of heavy power-consuming appliances. This is a complex staff and can only be carried out by electrical professionals.
2) Commercial Installation
These types of installations are a lot more complicated than residential installations. It covers areas like offices, schools, shopping malls, etc. These jobs can’t be carried out without a trained electrician in London.