Our installations normally take 2-3 days. Some companies will claim that they can complete an installation in one day but we don't cut corners and ensure all the work is to the highest possible standard. We prefer to test the performance of our solar PV systems during daylight hours which might not be easy if the installation is completed in the late afternoon.
Our solar electrician will have to turn off your electricity for a short period of time (typically around 30 minutes) to make the final connections.
There will be some drilling throughout the day but the installation doesn't make much mess. There is a small amount of packaging, most of which can be recycled.