In 80% of the cases we do the install for new homes once the handover is complete. We have had no problems with this.
The exception is when you have:
> a multi storey and want a comprehensive alarm system
> have a house with no roof space (which means we can’t do any wiring)
If you’re in any of the above two scenarios, we are able to wire up the home before the plaster / ceiling goes and complete the system on handover.