Environment will be noisy and dusty and also skip may be required
Rooms where the work is being done may not be usable whilst the work is being carried out and furniture, kitchen units etc may need to be removed and also Insulation work can be carrying out room by room to minimize the disruption but the environment will be noisy and dusty
Fittings such as radiators, skirting boards, window sills and plug sockets that are on the wall that is being insulated will need to be removed and reattached
Pipe work and wiring may need to be re-laid
Internally insulating will reduce the size of the room.
It can make more difficult to hang heavy items as an example such as large shelving units to inside walls but there are special fixings are available
Fitters may require water and power, and the use of a toilet
The newly insulated walls and adjacent surfaces will need to be re-decorated once the work has finished and it is customers responsibility.